1. Manuals
  2. Brands
  3. Avery Berkel Manuals
  4. Scales
  5. CX20 SERIES
  6. Service manual

Avery Berkel CX20 SERIES Service Manual

Retail scales
Hide thumbs
Table of Contents

Advertisement

Quick Links

CX20, CX30
CX34 SERIES
AND
RETAIL SCALES
CX34
CX30 TK
CX9/A702
CX20W
CX30
CX20
76101–452
Issue 2/02.03.95

Advertisement

Table of Contents
loading

Related Manuals for Avery Berkel CX20 SERIES

Summary of Contents for Avery Berkel CX20 SERIES

  • Page 1 CX20, CX30 CX34 SERIES RETAIL SCALES CX34 CX30 TK CX9/A702 CX20W CX30 CX20 76101–452 Issue 2/02.03.95...

  • Page 2: Table Of Contents

    Contents Table of Contents: About This Manual Amendment Sheet Abbreviations Overview Introduction 1–1 General 1–3 1.1.1 CX20 1–4 1.1.2 CX20 W 1–5 1.1.3 CX30 1–5 1.1.4 CX30 TK 1–6 1.1.5 CX34 1–6 General Data 1–7 General and Technical 2–1 Mechanical Description 2–3 2.1.1 CX20/CX30...

  • Page 3: Introduction

    Contents Disassembly and Assembly 3–1 Introduction 3–3 Servicing the CX20/CX30 3–3 3.2.1 Removing the case 3–3 3.2.2 Fitting the case 3–4 3.2.3 Replacing the keyswitch 3–4 3.2.4 Replacing the DCU/remote keyboard connector 3–4 3.2.5 Replacing the LCD (CX20) 3–5 3.2.6 Removing external connector plate 3–6 Servicing the CX20 W and CX9/A702...
  • Page 4 Contents Calibration and Adjustments 7–1 Introduction 7–3 Adjustment of Overload Stops (CX20/CX30) 7–3 7.2.1 Adjustment of Asymmetric Overload Stops 7–3 Adjustment of Overload Stops (CX9/A702) 7–3 Adjustment of Overload Stops (CX34) 7–3 Calibration 7–4 Testing 8–1 Introduction 8–3 Date/time Entry (Menu Option) 8–4 Scale Test (Menu Option) 8–5...

  • Page 5: General

    Contents Error Messages 10–1 10.1 Commodity Display Error Messages 10–3 10.2 TEST REPORT Error Number 10–13 Main PCB 11–1 11.1 Description 11–3 11.2 Servicing 11–6 11.2.1 Removing the main PCB (CX20/CX30) 11–6 11.2.2 Fitting the main PCB (CX20/CX30) 11–6 11.2.3 Removing the main PCB (CX20 W) 11–10 11.2.4...
  • Page 6 Contents 15.4 Keyboard Controller PCB 15–4 15.4.1 Circuit description 15–4 15.4.2 Power Supplies 15–4 15.4.3 Links 15–5 15.5 Servicing 15–8 15.5.1 Removing the customer keyboard 15–8 15.5.2 Replacing the customer keyboard 15–8 15.5.3 Removing the keyboard controller PCB 15–8 15.5.4 Fitting the keyboard controller PCB 15–9 15.5.5...
  • Page 7 Contents 19.3.4 Fitting the printer (CX34) 19–6 19.3.5 Cleaning the print head 19–6 19.3.6 Changing the print head 19–6 19.3.7 Changing the microswitch 19–7 19.3.8 Disassembling the printer 19–7 19.3.9 Assembling the printer 19–7 Label and Receipt Printer 20–1 20.1 Description 20–3 20.2...
  • Page 8 Contents Wiring Interconnections 24–1 24.1 CX20/CX30 24–3 24.2 CX20 W 24–8 Appendices 25–1 25.1 Configuration Option Tables for Old Software 25–3 25.1.1 Option Tables for Mod.3 Software Release 25–3 25.1.2 Option Tables for Pre–Phase 1.2 Software Release 25–7 25.2 Label Formatting 25–17 25.2.1 Calculating the offset...
  • Page 9 Contents Figure 12.2 Display Brackets 12–4 Figure 13.1 Display (CX30) 13–3 Figure 13.2 Display (CX34) 13–4 Figure 13.3 Display PCB (Metric Multi–line) 13–4 Figure 13.4 Display PCB – Switches and LEDs 13–5 Figure 13.5 Display (CX30) – Exploded 13–11 Figure 14.1 Keyboard 14–3 Figure 14.2...
  • Page 10 Amendments will be issued as necessary. To ensure that your Manual is up to date the Amendment Record Sheet must be completed as the amendments are made to the Manual. For further information on Service or Parts, please contact your nearest Avery Berkel dealer or contact Avery Berkel Technical Support: Avery Berkel Technical Support...
  • Page 11 Amendment Sheet AMENDMENT DATE AMENDMENT DETAILS 1992 Draft 1: originated by sub–contractors (Cheltenham Technical Publications). Sep. 1992 Draft 2: conversion to Interleaf format and general update. Feb. 1994 Issue 1: general update to incorporate Phase 1.3 software release. Oct. 1994 Figure 20.4 Comms PCB –...

  • Page 12: Testing

    Abbreviations Per cent Circuit code: link number # Degrees Celsius Label (printer) Least significant bit Ampere Least significant digit Analogue to digital ASIC Application specific integrated Memory controller circuit Memory Automatic variable resolution Minimum Millimetre Comms Communications Most significant bit Most significant digit Data collector unit Dual–in–line (switch)

  • Page 13: Keyboard

    Overview SAFETY WARNINGS Lethal Voltages This equipment is supplied by a mains voltage which can cause electric shock injury. Before removing the unit case or the covers of any remote units (for example: displays, weighing platforms, customer keyboards etc.), disconnect completely the mains power supply and ensure that it cannot be connected inadvertently by other persons.

  • Page 14: Main Pcb

    Overview SERVICE PRECAUTIONS General Before servicing a machine, it is recommended that the machine’s data is backed–up. Refer to Part 2, Programming Handbook for use on Data Collector Units (DCUs). Static Sensitive Devices Almost all electronic integrated circuits, commonly known as ’chips’, are static sensitive devices (SSDs).
  • Page 15 Overview C918 External Comms Controller Unit The details for servicing the C918 are detailed in the following documetation: D C918 Service Safety Information, Part Number 76102–129 D C918 User Safety Information, Part Number 76102–130 Any warnings, cautions or notes must be strictly observed. ORDERING New Parts When ordering a new part, make sure that you use the correct part number.

  • Page 16: Cx20

    Overview THE CX20, CX30 AND CX34 SERIES OF SCALES The CX20, CX30 and CX34 series of scales comprise the following machines: Model Description CX20 ECR Receipt only counter scale with electronic cash register functions; integral vendor display with integral or column–mounted customer display CX20 LS Label and receipt counter scale;...

  • Page 17: Cx20 Wcx30 Cx30 Tk Cx34

    Section 1 Introduction Table of Contents: General 1–3 1.1.1 CX20 1–4 1.1.2 CX20 W 1–5 1.1.3 CX30 1–5 1.1.4 CX30 TK 1–6 1.1.5 CX34 1–6 General Data 1–7 CX20/CX30/CX34 Service Manual 1–1...

  • Page 18: Error Messages

    1 — Introduction General This manual provides service instructions for weighing scales of the CX20, CX30 and CX34 series. The units are electronic weighing, price computing and printing machines for retail use. They are mains powered and can be operated as stand–alone units or in a network.
  • Page 19 1 — Introduction 1.1.1 CX20 The CX20 is a counter scale. Supplemental information is presented to the vendor by a separate liquid crystal display (LCD) which is just below the printer. Column–mounted displays are available as an alternative. Figure 1.1 General View (Integral Displays) Vendor display Weighplate...
  • Page 20 1 — Introduction 1.1.2 CX20 W The CX20 W is an indicating and printing machine. It is used with a remote weighing platform, a modified CX9/A702, on a range of Automatic Stretch Wrapping machines. The CX20 W has no weighplate or customer display. Figure 1.3 General View (CX20 W) Label taken sensor...
  • Page 21 1 — Introduction 1.1.4 CX30 TK The CX30 TK is a customer self–service, counter scale. It is basically an LS machine but has a large column–mounted or remote keyboard for use by the customer. The printer door can be locked to prevent unauthorised access. Figure 1.5 General View (CX30 TK –...

  • Page 22: General Data

    1 — Introduction General Data Subject Description Notes Power requirement 110–120/220–240 Vac +10/–15%, 50–60 Hz, Power not to 35VA (non–printing), 160VA (printing) exceed 160 VA (worst case) 5V regulated supply capable of providing CX30 TK 20mA maximum in normal operating conditions Scale range See ”Digit 1 –...
  • Page 23 1 — Introduction Subject Description Notes Approximate 180 x 425 x 440 mm CX20/CX20 W dimensions (height x (7.8 x 16.7 x 17.3 in) width x depth) id h 180 x 425 x 440 mm CX20/CX20 W (7.8 x 16.7 x 17.3 in) 500 x 425 x 440 mm CX20 with (19.7 x 16.73 x 17.3 in)

  • Page 24: General And Technical

    Section 2 General and Technical Table of Contents: Mechanical Description 2–3 2.1.1 CX20/CX30 2–3 2.1.2 CX20 W and CX9/A702 2–7 2.1.3 CX34 2–11 Electrical Description 2–13 Networking 2–14 Built–in Test Equipment 2–14 CX20/CX30/CX34 Service Manual 2–1...

  • Page 25: Mechanical Description

    2 — General and Technical Mechanical Description 2.1.1 CX20/CX30 The CX20/CX30 unit is built around a metal chassis to which is attached four adjustable feet (six on the CX30 TK machine) and a spirit level. A plastic lower housing fits around the chassis. A plastic case fits over the top of the lower housing and the interior assemblies.

  • Page 26: Figure 2.2 Exploded View (Cx30) - Ls/Ecr Version

    2 — General and Technical The printer is located in a housing on the right–hand side of the machine, accessible through a removable drop–down door (lockable on the CX30 TK). It dispenses printed tickets through a ticket slot at the front. The CX20 unit has two 20–character, vacuum–fluorescent, numeric displays, one on the vendor side of the unit and one on the customer side.

  • Page 27: Communications Controller

    2 — General and Technical A transducer is mounted on the chassis. On top of this is positioned a four–arm, cross assembly. The weighplate has four spigots on its lower surface, each of which sits in a cross rubber at the end of each arm of the cross assembly. A load placed on the weighplate is, therefore, transferred evenly through the cross assembly to the transducer.
  • Page 28 2 — General and Technical Figure 2.3 Scale Base – Plan View (CX20/CX30) Tunnel to Transducer assembly head–up display Printer spine with Support (for cross corner stops main PCB) (2 – off) Chassis External connector plate REAR Cash Cross drawer protection connector plate...

  • Page 29: Cx20 W And Cx9/A702

    2 — General and Technical 2.1.2 CX20 W and CX9/A702 The CX20 W and CX9/A702 machines are used in conjunction with ULMA Automatic Stretch Wrapping machines. Together they provide indicating, printing and weighing functions and are an integral part of the wrapping equipment.
  • Page 30 2 — General and Technical Figure 2.5 Exploded View (CX20 W) Printer door Tamper–proof screw Case Case securing screw Side panel Ticket mouth A/D PCB support Special nut Housing Display bracket support bracket Main PCB Display Cassette Cross Plate protection plate A/D PCB RS232 interface PCB...

  • Page 31: Figure 2.6 Exploded View (Cx9/A702)

    2 — General and Technical Figure 2.6 Exploded View (CX9/A702) Weighplate Instrument screw Top cover Cross Cross rubber Transducer retainer Transducer assembly Blanking panel Base Levelling foot Spirit level CX20/CX30/CX34 Service Manual 2–9...
  • Page 32 2 — General and Technical Figure 2.7 Scale Base – Plan View (CX20 W) Wrapper interface Printer spine (label printer) RS232 PCB connector and corner stops Output connector RS232 wrapper plate Chassis interface connector REAR Transducer Cross cable output protection connector plate ISC connector...

  • Page 33: Cx34

    2 — General and Technical 2.1.3 CX34 The CX34 unit is built around a mild steel chassis which is suspended from a customer support via a fixing assembly. Fitted to the front (vendor side) and rear (customer side) of the chassis are moulded plastic housings which enclose all the unit’s major components Projecting from the underside of the unit is a bracket which supports the cradle assembly and scoop that hangs directly underneath.
  • Page 34 2 — General and Technical The rear housing houses a main PCB, A/D PCB and customer display PCB. A customer display screen is fitted externally towards the bottom of the rear housing. The printer assembly is fitted to both sides of a vertical printer spine which is fitted to the chassis towards the right–hand side of the unit.

  • Page 35: Electrical Description

    2 — General and Technical Electrical Description The unit is powered by a mains electricity supply, which is transformed, rectified and smoothed by a power supply unit. The power supply unit distributes the derived power supplies to the main PCB through a cable loom terminated by a multi–pin plug.

  • Page 36: Networking

    2 — General and Technical In receipt mode, when transaction has been accepted (keyboard input), the microprocessor sums all the component transactions and transmits the result for display. This procedure continues for each transaction until the end of sale, then the microprocessor drives the printer to print the totals and transmits the results for display.

  • Page 37: Disassembly And Assembly

    Section 3 Disassembly and Assembly Table of Contents: Introduction 3–3 Servicing the CX20/CX30 3–3 3.2.1 Removing the case 3–3 3.2.2 Fitting the case 3–4 3.2.3 Replacing the keyswitch 3–4 3.2.4 Replacing the DCU/remote keyboard connector 3–4 3.2.5 Replacing the LCD (CX20) 3–5 3.2.6 Removing external connector plate...

  • Page 38: Servicing The Cx20/Cx30

    3 — Disassembly and Assembly Introduction Before proceeding to service the machines please read the Safety Warnings in the Overview section (Page xv). Servicing the CX20/CX30 WARNING HIGH VOLTAGES EXIST INSIDE THE UNIT. BEFORE REMOVING THE COVER, ENSURE THAT MAINS POWER IS DISCONNECTED COMPLETELY.

  • Page 39: Fitting The Case

    3 — Disassembly and Assembly 3.2.2 Fitting the case To fit case of the CX20/CX30 and close up the unit, proceed as follows: Connect case earth strap by attaching its spade connection at chassis secondary earth. Connect flying connector for keyboard. Carefully rotate case about the front edge, so that rear edge is lifted over machine and to rear.

  • Page 40: Replacing The Lcd (Cx20)

    3 — Disassembly and Assembly Detach the printer spine by undoing the two screws in the machine’s base. Cut the cable tie attaching the keyswitch/DCU/LCD loom and the power supply PCB output cables to the shroud covering the power supply PCB, noting its position.

  • Page 41: Removing External Connector Plate

    3 — Disassembly and Assembly 3.2.6 Removing external connector plate Refer to Figure 3.2. To remove and disassemble external connector plate, proceed as follows: Disconnect mains supply. Remove case (refer to Section 3.2.1). Access is improved if main PCB is detached and if shroud of power supply unit is removed.
  • Page 42 3 — Disassembly and Assembly Figure 3.2 External Connector Plate – View from above REAR OF UNIT Cash drawer connector ISC connector WHITE BLACK BROWN (TO CONNECTOR: PLUGS BROWN INTO SK1 ON POWER SUPPLY PCB) Host/Master BLUE (TO CONNECTOR: PLUGS connector INTO SK1 ON POWER SUPPLY PCB) Mains On/Off switch...

  • Page 43: Servicing The Cx20 W And Cx9/A702

    3 — Disassembly and Assembly Servicing the CX20 W and CX9/A702 WARNING HIGH VOLTAGES EXIST INSIDE THE UNIT. BEFORE REMOVING THE COVER, ENSURE THAT MAINS POWER IS DISCONNECTED COMPLETELY. EXCEPT WHERE SPECIFIED IN THESE PROCEDURES, DO NOT APPLY POWER TO THE UNIT WHEN THE COVER IS REMOVED. Refer to Figure 2.5.

  • Page 44: Fitting The Case (Cx20 W)

    3 — Disassembly and Assembly 3.3.2 Fitting the case (CX20 W) To fit case of the CX20 W and close up the unit, proceed as follows: Connect case earth strap by attaching its spade connection at chassis secondary earth. Connect flying connector for keyboard. Carefully rotate case about the front edge, so that rear edge is lifted over machine and to rear.

  • Page 45: Replacing The Lcd (Cx20 W)

    3 — Disassembly and Assembly 3.3.5 Replacing the LCD (CX20 W) Refer to Figure 3.1. To change the LCD, proceed as follows: Remove case (refer to Section 3.3.1). Detach LCD from clips in LCD cradle (pull out). Disconnect LCD from wiring harness. If necessary, remove LCD cradle from unit (pull out).
  • Page 46 3 — Disassembly and Assembly Figure 3.3 External Connector Plate (CX20 W) – View from above REAR OF UNIT TO RS232 INTERFACE Transducer PCB (TERMINAL TB2) interface connector ISC connector BLUE YELLOW EARTH (TO CHASSIS PRIMARY EARTH) GREEN BROWN (TO CONNECTOR: PLUGS BROWN INTO SK1 ON POWER SUPPLY PCB) Host/Master...

  • Page 47: Servicing The Cx34

    3 — Disassembly and Assembly Servicing the CX34 WARNING HIGH VOLTAGES EXIST INSIDE THE UNIT. BEFORE REMOVING THE COVER, ENSURE THAT MAINS POWER IS DISCONNECTED COMPLETELY. EXCEPT WHERE SPECIFIED IN THESE PROCEDURES, DO NOT APPLY POWER TO THE UNIT WHEN THE COVER IS REMOVED. WARNING WHEN LIFTING, MOVING OR SUPPORTING THE MACHINE TAKE ITS WEIGHT INTO CONSIDERATION.

  • Page 48: Fitting The Housings

    3 — Disassembly and Assembly Remove front housing: lift up front housing (being careful not to strain the electrical connections) and disconnect looms from the vendor display PCB and keyboard (intermediate connection). Disconnect the keyboard earth braid from the power supply unit cover by removing the screw and shakeproof washer: the earth lead connected to keyboard/main PCB loom is also freed.
  • Page 49 3 — Disassembly and Assembly Lift up unit and fit it to customer’s fixing assembly. When moving or supporting the machine, take its weight into consideration. Fit the cradle assembly (complete with scoop) by hooking it over the support bracket underneath the machine. 3–14 CX20/CX30/CX34 Service Manual...

  • Page 50: Installation (Cx20 W)

    Section 4 Installation (CX20 W) Table of Contents: Introduction 4–3 Installation 4–3 4.2.1 Approvals and stamping 4–4 CX20/CX30/CX34 Service Manual 4–1...

  • Page 51: Introduction

    4 — Installation (CX20 W) Introduction This section details the installation procedure for the CX20 W and CX/A702 machines used in conjunction with the ULMA Automatic Stretch Wrapping machines. Installation Site and level the wrapper. Secure the load cell extension platform (supplied with ULMA Scale Kit) centrally to the CX9/A702 weighplate.

  • Page 52: Approvals And Stamping

    4 — Installation (CX20 W) Select PLU No. 2 on scale. Refer to appropriate Operators’ Handbook. Display will show ’Tare No 2’ – Press ’Enter’ Display will show ’Meat’ Simultaneously the tare number will be transmitted to the wrapper as the wrapper program number.

  • Page 53: Setting Up Procedures

    Section 5 Setting Up Procedures Table of Contents: Introduction 5–4 Service mode 5–5 5.2.1 Entering service mode using the SAC number 5–5 5.2.2 Entering service mode using the DIL switch 5–7 Configuration (Menu Option) 5–7 Calibration (Menu Option) 5–7 Clear Memory (Menu Option) 5–8 Format Memory (Menu Option) 5–9...
  • Page 54 5 — Setting Up Procedures Figure 5.1 Service Mode Flowchart Machine Z programming DIL switch menu on main PCB TEST REPORTS SAC NUMBER CONFIGURATION ** CALIBRATION *** CLEAR MEMORY FORMAT MEMORY TEST WEIGHT TEST DIAGNOSTICS SAC NUMBER PRINT DENSITY DATE/TIME ENTRY LABEL FORMATS * SCALE TEST SYSTEM LOAD TEST...

  • Page 55: Introduction

    5 — Setting Up Procedures Introduction This section details the setting up procedures required after machine installation and various servicing operations. All of these procedures are carried out in Service Mode. Figure 5.2 Menu in Service Mode Machine Z programming menu DIL switch on TEST REPORTS...

  • Page 56: Service Mode

    5 — Setting Up Procedures Service mode IMPORTANT: It is recommended that, before carrying out a service operation on a machine, you make a back–up of its data (refer to User Guide). Service Mode is only available to the service engineer. It allows you to: D configure and calibrate the machine D clear and format the memory D check calibration with a known test weight...
  • Page 57 5 — Setting Up Procedures What You Do What You See Press ENTER. TOTALS REPORTS Press until you reach the TEST REPORT menu. TEST REPORT Press ENTER: a test report will be printed. TEST REPORT When TEST REPORT disappears from the display, quickly type in the four digit service access code (SAC) **** number: default is 9381.

  • Page 58: Entering Service Mode Using The Dil Switch

    5 — Setting Up Procedures 5.2.2 Entering service mode using the DIL switch To enter service mode using the DIL switch carry out the following: What You Do What You See Switch the machine on. Insert one of the keys in the keyswitch and turn it fully counter-clockwise (that is: to the first OPerator position).

  • Page 59: Clear Memory (Menu Option)

    5 — Setting Up Procedures Clear Memory (Menu Option) The clear memory function provides memory verification and initialisation (automatic ’cold start’). Examples of when to use the clear memory function are: D after a change of software D after changing the main PCB D after fitting a comms PCB D after changing the operating mode (that is: from vendor, system or customer mode)

  • Page 60: Format Memory (Menu Option)

    5 — Setting Up Procedures Format Memory (Menu Option) The format memory function is a RAM check. A corrupted RAM would probably result in a loss of some of the memory; this would be indicated by the RAM becoming full up earlier than expected. The format memory function works by filling up each RAM with predetermined PLUs.

  • Page 61: Test Weight (Menu Option)

    5 — Setting Up Procedures Test Weight (Menu Option) To check the calibration of the machine by using a known weight carry out the following procedure: What You Do What You See Enter service mode (see Section 5.2). CONFIGURATION Move to the TEST WEIGHT menu. TEST WEIGHT Press ENTER.

  • Page 62: Sac Number (Menu Option)

    5 — Setting Up Procedures SAC Number (Menu Option) The machine’s SAC number is only displayed with the machine in the SAC NUMBER menu in service mode. If SAC number is unknown, entry to service mode must be effected by using the DIL switch (see Section 5.2.2): a new SAC number must be set, using this menu option, before exiting service mode.

  • Page 63: Print Density (Menu Option)

    5 — Setting Up Procedures 5.10 Print Density (Menu Option) In service mode the density of the printing on the thermal paper can be adjusted. There are 13 density settings (0 to 12) to choose from on all machines, the default being 7. Both print heads, Rohm and Axiohm, have their recommended print density settings printed on them in the form of head resistance (Ohms) and resistance class respectively, which have to be converted to density settings (see Tables 5.1 and 5.2).

  • Page 64: Label Formats (Menu Option)

    5 — Setting Up Procedures To change the print density carry out the following: What You Do What You See Enter service mode and move to the PRINT DENSITY option. PRINT DENSITY Press ENTER. (Current print density appears in right–hand side of display.) PRINT DENSITY Type in new density number, using Tables 5.1 and 5.2 only as a guide.

  • Page 65: Introduction

    Section 6 Configuration Table of Contents: Introduction 6–3 Configuration procedure 6–3 6.2.1 Configuring the machine 6–3 6.2.2 Configuration Option Tables 6–5 CX20/CX30/CX34 Service Manual 6–1...

  • Page 66: Configuration

    6 — Configuration Introduction Each machine is configured to operate to customer’s requirements. The CONFIGURATION mode enables you to change the machine’s configuration. On networks the system is also configured in this mode. NOTE: All machines on a network must be configured to operate in the same weight system, that is: metric, avoir or cental.
  • Page 67 6 — Configuration What You Do What You See If you wish to configure the system go to Step 5. If you wish to end configuration press N then ENTER: the display will blank, then machine will run through its warm–up sequence.
  • Page 68 6 — Configuration 6.2.2 Configuration Option Tables The following tables give the configuration options: NOTE: The following option tables are for Phase 1.3 main core software release. For machines with software prior to Phase 1.3 refer to Section 25. Table 6.1 Machine Configuration Digit 1 —...
  • Page 69 6 — Configuration Digit 8 — Tax Printing Options Inclusive tax systems only. No reference to tax value on receipt Itemised tax printing on receipt Tax value shown on receipt Digit 9 — Weight Filtering 0.75 division weight filter 8 division weight filter 1 division weight filter 10 division weight filter 2 division weight filter...
  • Page 70 6 — Configuration Table 6.2 System Configuration Digit 1 — Country Selection United Kingdom Australia Holland New Zealand France Belgium Germany Austria Canada Switzerland Mexico Italy Denmark South Africa Norway Digit 2 — Security Reports Security reports OFF Security reports ON Digit 3 —...
  • Page 71 6 — Configuration Digit 13 — Tare Printing Options No reference to tare value on receipt Tare value shown on receipt Digit 14 — Totalisation Totalise all transactions Totalise the add mode transactions only Digit 15 — AM and PM Printing Disabled Enabled Digit 16 —...

  • Page 72: Calibration And Adjustments

    Section 7 Calibration and Adjustments Table of Contents: Introduction 7–3 Adjustment of Overload Stops (CX20/CX30) 7–3 7.2.1 Adjustment of Asymmetric Overload Stops 7–3 Adjustment of Overload Stops (CX9/A702) 7–3 Adjustment of Overload Stops (CX34) 7–3 Calibration 7–4 CX20/CX30/CX34 Service Manual 7–1...

  • Page 73: Calibration

    7 — Calibration and Adjustments Introduction Calibration data is held in the EEPROM. Calibration data contains span, zero and linearity settings. During calibration the weight display is active and subdivision data displayed in the alphanumeric display. NOTE: If the capacity of a machine is changed the machine must be re–calibrated.
  • Page 74 7 — Calibration and Adjustments Calibration To calibrate the unit, proceed as follows: NOTE: See Section 5.2 for service mode entry. What You Do What You See On the CX20/CX30/CX9/A702 check that unit is level and adjust levelling feet if necessary. Enter service mode by using the DIL switch (refer to Section 5.2.2).
  • Page 75 7 — Calibration and Adjustments What You Do What You See Place full load on the weighplate. 25 : 0 ADD FULL LOAD Press ENTER. Calibration is complete. CALIBRATION If unit cannot self–calibrate at the weights in use, it will display OUTSIDE RANGE for approximately two seconds then revert to CALIBRATION.
  • Page 76 Section 8 Testing Table of Contents: Introduction 8–3 Date/time Entry (Menu Option) 8–4 Scale Test (Menu Option) 8–5 8.3.1 Processor test (menu option) 8–6 8.3.2 Static RAM test (menu option) 8–7 8.3.3 ROM test (menu option) 8–8 8.3.4 EEPROM test (menu option) 8–9 8.3.5 Display test (menu option)

  • Page 77: Introduction

    8 — Testing Introduction The unit performs a self–test at power–up. Further diagnostic testing is available from built–in test software which is arranged in sections. Any one section can be applied to test the health of a particular function, or all sections can be applied to provide a general health check.

  • Page 78: Date/Time Entry (Menu Option)

    8 — Testing Date/time Entry (Menu Option) Date and time may be set or changed. What You Do What You See Select DATE/TIME ENTRY option. DATE/TIME ENTRY Press ENTER. (Date appears in left–hand side of display, time in right–hand side. Left–hand digit of 05/10/92 13–49 date flashes.)

  • Page 79: Scale Test (Menu Option)

    8 — Testing Scale Test (Menu Option) All of the following tests are carried out in SCALE TEST menu. On pressing ENTER to access PROCESSOR TEST menu option a ’SCALE IDENTITY’ report is printed. Figure 8.2 Menu of Scale Test SCALE TEST Press ENTER.

  • Page 80: Processor Test (Menu Option)

    8 — Testing 8.3.1 Processor test (menu option) Processor performs test on: D on–processor RAM D address registers D internal interrupts D timers Any failure will result in display showing “PROCESSOR FAIL” and unit will not react to any keyboard or load input. What You Do What You See Select function.

  • Page 81: Static Ram Test (Menu Option)

    8 — Testing 8.3.2 Static RAM test (menu option) Processor writes data to all RAM addresses, destructively over–writing any data already there. What You Do What You See Select function. STATIC RAM TEST Press ENTER. Runs through the test. ”RAM NOT FITTED” is displayed where RAM is not fitted.

  • Page 82: Rom Test (Menu Option)

    8 — Testing 8.3.3 ROM test (menu option) A value is generated and printed for each of the three ROMs in unit: two main EPROMs (A+B and C+D) and one PROMX. These values should be compared with values labelled on ROMs at manufacture. Values must not have altered. What You Do What You See Select function.

  • Page 83: Eeprom Test (Menu Option)

    8 — Testing 8.3.4 EEPROM test (menu option) Caution DO NOT switch machine off during this test. Existing EEPROM data is copied in triplicate to RAM and then deleted from EEPROM. The EEPROM is tested in data–empty condition and a value is generated and printed.

  • Page 84: Display Test (Menu Option)

    8 — Testing 8.3.5 Display test (menu option) This test has two parts: first part checks display function; second part provides display burn–in at manufacture. Display burn–in is not required in the field as all new display units are supplied already burned–in. First part energizes sequentially every display panel (and LED, if applicable) at one–second intervals, then all panels indicate sequence 0, 1, 2, 3, 4, 5, 6, 7, 8, 9.

  • Page 85: Keyboard Test (Menu Option)

    8 — Testing 8.3.6 Keyboard test (menu option) Once test has started you must press every key position on the keyboard in sequence. Starting at top left–hand corner (key position ’1’) work from left to right, then do the same for next row down, and so on. At each correct key press the machine will produce a normal BEEP tone and the displayed PRESS KEY number will increase by one.
  • Page 86 8 — Testing What You Do What You See Turn key in keyswitch to SUPERVISOR position. A ’KEYBOARD TEST’ report is printed. KEYBOARD FAIL KEYBOARD TEST 8–12 CX20/CX30/CX34 Service Manual...

  • Page 87: Figure 8.3 Link Fittings To Echo Plugs (D-Type Connectors)

    8 — Testing 8.3.7 Comms test (menu option) This test requires that all communications connectors on exterior of machine have ‘echo’ test connectors fitted (refer to Figure 8.3): these return outgoing signals back to machine. The machine sends a block of data and monitors returned result.
  • Page 88 8 — Testing What You Do What You See Display will then show the following ISC PASS and a test report is printed. ISC FAIL Step 4 is then repeated for the 2400, 4800, 9600 and 19200 baud rates. Test continues for the DCU. The number in the top right–hand display will start counting.

  • Page 89: Weighing Test (Menu Option)

    8 — Testing 8.3.8 Weighing test (menu option) This test measures the stability of transducer and A/D PCB circuitry. Before the test you must determine duration of test cycle (in minutes, from 1 to 99). When set and when test cycle period is passed, test may begin. Weight is applied to weighplate, and display is monitored: display shows weight data as computer data and as final value.

  • Page 90: System Load Test (Menu Option)

    8 — Testing System Load Test (Menu Option) Simulation of normal operations to check communication, totalisation and performance of machines. There are two tests available, both of which comprise the loading of transactions into the machine. 8.4.1 Loading the system This test loads the system with a given number of transactions over a given period of time and a report is printed.
  • Page 91 8 — Testing What You Do What You See Press ENTER. You may not see the ’NO TRANSACTIONS’ display every time ... NO TRANSACTIONS ... price to pay display shows the number of transactions ... LOADING ..

  • Page 92: Measuring On The Machine

    8 — Testing 8.4.2 Measuring on the machine This test determines the speed of the machine by loading it with transactions over a pre–determined period of time. Apart from measuring machine performance it can also be used for checking totalisation and software. What You Do What You See Select SYSTEM LOAD TEST option.
  • Page 93 Section 9 Label Formats Table of Contents: Introduction 9–3 Labels 9–4 9.2.1 Label format 9–4 9.2.2 Label fields 9–5 9.2.3 Label field co–ordinates 9–6 9.2.4 Label start point 9–7 9.2.5 The offset (90 and 180 degree formats only) 9–8 9.2.6 Determining the Start Point of a 90 Degree Format 9–9 9.2.7...

  • Page 94: Introduction

    9 — Label Formats Introduction Refer to Users’ Handbook Part 6, Label and Barcode Formats. The LABEL FORMATS menu allows Avery Berkel personnel and dealers to create an original label format to customer’s requirements (with regard to local Weights and Measures Regulations).

  • Page 95: Labels

    9 — Label Formats Labels The label is from 40 mm to 160 mm long, up to approximately 50 mm wide and can be supplied pre–printed or plain. NOTE: Dark pre–printed labels can cause problems with the printer’s photodetector resulting in a LABEL FEED ERR error display. See Section 10.

  • Page 96: Label Fields

    9 — Label Formats 9.2.2 Label fields Each label format comprises a number of fields. A field is a rectangular area on the label in which is printed: unit price, dates, sales messages, text, barcode etc. A space is reserved for the optional store name at the leading edge of every label.

  • Page 97: Label Field Co–Ordinates

    9 — Label Formats 9.2.3 Label field co–ordinates To program a new label format each field requires two co–ordinates: X1,Y1 and X2,Y2. These set the field’s size and position. The X1,Y1 co–ordinate is at the field’s top left–hand corner and the X2,Y2 at the opposite corner (bottom right–hand).

  • Page 98: Label Start Point

    9 — Label Formats 9.2.4 Label start point The label start point, or origin, is the point on the label from which all label co–ordinates are determined. This point corresponds to the 000,000 co–ordinate stored in the machine. The label’s start point is always at (0 label), or near (90 and 180 labels), its bottom left–hand corner.

  • Page 99: Figure 9.4 Effect Of The Offset (90 Degree Label)

    9 — Label Formats 9.2.5 The offset (90 and 180 degree formats only) Unlike the 0 label format, the label start points of the 90 and 180 formats are referenced, in the machine’s software, to the right–hand side of the print head – see Figure 9.3.

  • Page 100: Determining The Start Point Of A 90 Degree Format

    9 — Label Formats 9.2.6 Determining the Start Point of a 90 Degree Format To determine the start point for a 90 label format carry out the following (refer to Figure 9.5): From the top edge of the label, measure 53.5 mm down in the plane of the Y axis.

  • Page 101: Figure 9.6 Determining The Start Point (180 Degree Format)

    9 — Label Formats 9.2.7 Determining the Start Point of a 180 Degree Format To determine the start point for the a 180 label format carry out the following (refer to Figure 9.6): From the right–hand edge of the label, measure 53.5 mm to the left in the plane of the X axis.

  • Page 102: Text Fonts

    9 — Label Formats 9.2.8 Text fonts There are 24 text fonts available. During programming each text font is represented by a letter. The text fonts are shown below (approximately full size), each letter representing the actual programmed font. Fonts in certain fields can be changed by the vendor in the programming mode. 9.2.9 References In the three LEGEND fields, sales messages may be referenced.

  • Page 103: Creating A New Label Format

    D programming (refer to Section 9.3.3). To create a new label format: draw the required label format to the customer’s specifications – if necessary have it checked by Avery Berkel Customer Support; measure the position of the fields and obtain their co–ordinates; program the machine with the new format.

  • Page 104: Determining The Label Field Co–Ordinates

    9 — Label Formats 9.3.2 Determining the label field co–ordinates At the bottom left–hand corner of the label mark the position of the start point – for a 90 or 180 label its position needs to be offset, see Section 9.2.5. Draw the X and Y axes through the start point.

  • Page 105: Example – Creating A New 0 Degree Label Format

    9 — Label Formats 9.3.4 Example – creating a new 0 degree label format The following example shows how to create a new 0 label format. Obtain a label, peel off the backing paper and stick it onto a sheet of paper.
  • Page 106 9 — Label Formats Measure the distances x1, y1, x2 and y2 in millimetres for the TEXT 1 field and enter these values in Table 25.13. See Diagram D below. Y axis Diagram D (X1, Y1) (X2, Y2) X axis x1 = 1 mm Start point = 0 mm (X and Y...
  • Page 107 9 — Label Formats Repeat Step 4 for the remaining label fields. Diagram E below gives a further example and Figure 9.7 shows the completed table. Diagram E Y axis (X1, Y1) (X2, Y2) X axis X1 = 14 mm Start point = 0 mm (X and Y planes) X2 = 30 mm...
  • Page 108 9 — Label Formats Convert the measured distances x1, y1, x2 and y2 to co–ordinates X1,Y1 and X2,Y2 (see Table 9.2 for conversion factor) and enter these values in Table 25.14. See Diagram F below and Figure 9.8. Diagram F Measurements (mm) Field Code...

  • Page 109: Figure 9.7 Example Of Completed Field Measurements Table

    9 — Label Formats After completing Table 25.14 you are ready to program your new label format data into the machine. Follow the procedure in Section 9.4. After successfully programming your new label format, copy Table 25.14 for the customer and keep the master yourself for record purposes.

  • Page 110: Figure 9.8 Example Of Completed Programmed Data Table

    9 — Label Formats Figure 9.8 Example of Completed Programmed Data Table Customer: JONES BUTCHERS Format Reference Number: Machine Type: CX30 LS Rotation (0 , 90 or 180 ) : Date: 22/9/93 Field Co–ordinates Font Ref Font Ref. Name Code TEXT 1 TEXT 2 TEXT 3...

  • Page 111: Figure 9.9 Co-Ordinates (Commodity Display)

    9 — Label Formats Edit Format (Menu Option) New label formats can be programmed and existing ones edited in the EDIT FORMAT option. Before programming/editing please note the following: D In a field, if the co–ordinates of a text area remain unprogrammed (that is: their value is 000 000 000 000 when ENTER is pressed), ENTER FONT menu is omitted and next field is prompted for.
  • Page 112 9 — Label Formats What You Do What You See Type in the co–ordinates, if required (refer to Figure 9.9). 002 240 147 118 Press ENTER. ENTER FONT Type in font required. ENTER FONT D Press ENTER. TEXT 2 Repeat Steps 5 to 9 inclusive. TEXT 3 Repeat Steps 5 to 9 inclusive.
  • Page 113 9 — Label Formats What You Do What You See Repeat Steps 5 to 7 inclusive. ENTER FONT is not prompted for as the barcode does not have a font. BARCODE Repeat Steps 5 to 9 inclusive. LEGEND 1 Repeat Steps 5 to 9 inclusive. LEGEND 2 Repeat Steps 5 to 9 inclusive.
  • Page 114 9 — Label Formats What You Do What You See Repeat Steps 5 to 9 inclusive. TOTAL PRICE 2 Repeat Steps 5 to 9 inclusive. TOTAL PRICE 2 SYM Repeat Steps 5 to 9 inclusive. OPERATOR NAME Repeat Steps 5 to 9 inclusive. SALES TEXT 2 Press ENTER.
  • Page 115 9 — Label Formats What You Do What You See Press ENTER. Programming has finished. ENTRY ACCEPTED FORMAT REF Press SHIFT then ENTER. EDIT FORMAT You can check your programming by using the PRINT FORMAT option. See Section 9.7. If you wish to make alterations to the new format or you have made an error you can edit the format by repeating this procedure.

  • Page 116: Clear Format (Menu Option)

    9 — Label Formats Clear Format (Menu Option) This option clears all pre–programmed field data in any of the available 60 label formats by setting the fields to 0 or default, as in an unprogrammed flexible label format. NOTE: Although pre–programmed label formats can be cleared, after a ’cold start’...

  • Page 117: Copy Format (Menu Option)

    9 — Label Formats Copy Format (Menu Option) This option allows you to copy an existing label format. What You Do What You See Go to the COPY FORMAT option. COPY FORMAT Press ENTER. FROM REF Type in number of the label format you wish to copy.

  • Page 118: Print Format (Menu Option)

    9 — Label Formats Print Format (Menu Option) See Figure 9.2 for examples. This option prints out the selected label format in the form of boxes, each box representing a label field which is identified by a single–digit code inside. The STORE NAME is also printed, if programmed.
  • Page 119 Section 10 Error Messages Table of Contents: 10.1 Commodity Display Error Messages 10–3 10.2 TEST REPORT Error Number 10–13 CX20/CX30/CX34 Service Manual 10–1...

  • Page 120: Commodity Display Error Messages

    10 — Error Messages 10.1 Commodity Display Error Messages Error messages appear in the commodity display to indicate to the operator or service engineer: D incorrect operation of the machine D faults with the machine’s hardware or software D faults on the network. The error messages for the service engineer are a two digit number prefixed with the letter A or E (for example: A03 or E17).
  • Page 121 EPROMs (IC19 and IC20). 2. If the problem persists, a possible cause is a software fault. Contact Avery Berkel head office with a full description of the fault and a list of all software firmware numbers.
  • Page 122 This can be due to a mixed network (that is: different versions of software) or a software fault. If the problem persists contact Avery Berkel head office with a full description of the fault and a list of all software firmware numbers.
  • Page 123 10 — Error Messages Message Meaning/What you should do DISPLAY FAULT Secure machines only. The display data that is sent to the head–up display PCB is checked. This indicates that the data returned from the display PCB does not match the original data sent to it.
  • Page 124 10 — Error Messages Message Meaning/What you should do D You are trying to assign a key which has been switched INVALID ENTRY off. Re–programme the key. D You are trying to enter a tare value which is not a multiple of the display division.
  • Page 125 3. The wrong versions of software are fitted. 4. Faulty comms controller 1 PCB. If the problem persists contact Avery Berkel head office with a full description of the fault and a list of all software firmware numbers.
  • Page 126 10 — Error Messages Message Meaning/What you should do NO POS You have not set up a POS machine on the network and can only print a maximum of 500 receipts. Part 3 of the Users’ Handbooks describes how to set up a POS machine.
  • Page 127 10 — Error Messages Message Meaning/What you should do D The maximum number of operators are currently using PLEASE WAIT the machines on the network. Wait until an operator has finished. D The machine is actioning a clear command or printing a report.
  • Page 128 10 — Error Messages Message Meaning/What you should do PRINT HEAD ERROR Secure machines only. The data that is sent to the print head is returned to the main PCB and checked against the original data. If a complete match is not found this error is displayed.
  • Page 129 Indicates comms controller 1 or 2 has lost some total records; probably a software fault. If the problem persists contact Avery Berkel head office TOTS LOST CNTRL2 with a full description of the fault and a list of all software firmware numbers.

  • Page 130: Test Report Error Number

    This number represents a specific error. If the number appears on every TEST REPORT or, only periodically and the system doesn’t work, contact Avery Berkel Technical Support and provide them with a TEST REPORT containing the number. (To print a TEST REPORT: Machine Z TEST REPORT.)
  • Page 131 Section 11 Main PCB Table of Contents: 11.1 Description 11–3 11.2 Servicing 11–6 11.2.1 Removing the main PCB (CX20/CX30) 11–6 11.2.2 Fitting the main PCB (CX20/CX30) 11–6 11.2.3 Removing the main PCB (CX20 W) 11–10 11.2.4 Fitting the main PCB (CX20 W) 11–10 11.2.5 Removing the main PCB (CX34)

  • Page 132: Description

    11 — Main PCB 11.1 Description The main PCB carries all the circuitry required to scan and operate the keyboard and displays, to perform calculations and to drive the printer. For a general description of the function, refer to Section 2. The main PCB carries a smaller PCB, the analogue–to–digital converter (A/D).

  • Page 133: Figure 11.1 Main Pcb - Electrical Connections

    11 — Main PCB Figure 11.1 Main PCB – Electrical Connections See Tables 11.1 and 11.2. 11–4 CX20/CX30/CX34 Service Manual...
  • Page 134 11 — Main PCB Table 11.1 Main PCB – Electrical Connector Functions (CX20/CX30) Head–up display (standard on CX30, optional CX20) Printer data (receipt printer) Keyboard Printer data (label and receipt printer) – 3 dots/mm print head Printer motor supply (receipt, and label and receipt printers) Power supply Cashdrawer interface PL12...

  • Page 135: Servicing

    11 — Main PCB 11.2 Servicing 11.2.1 Removing the main PCB (CX20/CX30) To remove the main PCB on the CX20/CX30, proceed as follows: Make back–up of unit data (refer to Part 2, Programming Handbook for use of the DCU). Switch off machine and isolate it from the mains power supply. Remove case (refer to Section 3).
  • Page 136 11 — Main PCB Fit two clamps over main PCB and four chassis pillars and secure by fitting four special nuts to pillars (chamfer on special nuts face down, to match holes in main PCB). Take care not to move stop bolts set in head of chassis pillars: if moved, refer to Section 7.
  • Page 137 11 — Main PCB Figure 11.2 Main PCB – DIL Switches and Potentiometers 11–8 CX20/CX30/CX34 Service Manual...
  • Page 138 11 — Main PCB Table 11.3 Main PCB – DIL Switch and Potentiometer Functions Printer test initiate (momentarily on = generate test print) Print mode default on power–up (on = receipt mode) Take–up spool (on = will run in receipt mode) Print head security test (off = no test) Paper out enable/disable...

  • Page 139: Removing The Main Pcb (Cx20 W)

    11 — Main PCB 11.2.3 Removing the main PCB (CX20 W) To remove the main PCB on the CX20 W, proceed as follows: Make back–up of unit data (refer to Part 2, Programming Handbook for use of the DCU). Switch off machine and isolate it from the mains power supply. Remove case (refer to Section 3).

  • Page 140: Removing The Main Pcb (Cx34)

    11 — Main PCB Switch on battery on main PCB (DIL switch SW4, Bit 4 to ON (1)). Fit cross assembly by fitting two socket head screws attaching it to transducer: check that arrow on cross assembly points towards front (vendor) side of unit.
  • Page 141 11 — Main PCB Figure 11.3 Main PCB – Location of Links LK19 LINK NUMBERING – TYPICAL LINK 2–3 MADE Set links according to configuration for unit. LINK 1–2 MADE 11–12 CX20/CX30/CX34 Service Manual...
  • Page 142 11 — Main PCB Table 11.4 Main PCB – Link Functions Link Type Description 2–way DC motor boost (1–2 = selected) 2–way Scale PROMX select (1–2 = 27 512 – standard fit) 2–way Scale 128K/32K SRAM select (1–2 = 128K – standard fit; 2–3 = 32K – never used) 1–way Serial display data return (normally omitted, only fitted for 2x plug–in, integral CX20...

  • Page 143: Replacing The Main Pcb

    11 — Main PCB 11.2.7 Replacing the main PCB In the event of a malfunction on the main PCB, it should be returned for exchange, as follows: Remove main PCB (refer to Section 11.2.1, 11.2.3 or 11.2.5, as appropriate). On receipt of new main PCB, check correct firmware is fitted, as follows: D check part number of main PCB D check type of printer EPROM is fitted...

  • Page 144: Figure 11.4 Main Pcb – Location Of Integrated Circuits

    11 — Main PCB Figure 11.4 Main PCB – Location of Integrated Circuits RAM bank. Where not fully populated, fill from right (IC17) to left (IC12). System PROMs PROMX IC10 IC12 IC13 IC14 IC16 IC17 IC19 IC20 IC18 IC36 Central microprocessor Printer PROM CX20/CX30/CX34 Service Manual 11–15...

  • Page 145: Display (Cx20)

    Section 12 Display (CX20) Table of Contents: 12.1 Description 12–3 12.2 Testing 12–4 12.3 Servicing 12–5 12.3.1 Removing an integral display PCB 12–5 12.3.2 Fitting an integral display PCB 12–5 12.3.3 Removing a tower mounted display PCB 12–6 12.3.4 Fitting a tower mounted display PCB 12–6 CX20/CX30/CX34 Service Manual 12–1...

  • Page 146: Figure 12.1 Display - Fip Type (Cx20)

    12 — Displays (CX20) 12.1 Description There are two displays used on the CX20 unit, one on the vendor side (front) of the unit and one on the customer side (rear). The two display units are identical but, by software control, operator–prompt data is not displayed on the customer display.

  • Page 147: Testing

    12 — Displays (CX20) Figure 12.2 Display Brackets Display bracket, front (vendor side) Display bracket, rear (customer side) 12.2 Testing The displays are check–scanned during boot–up. All numeric characters will display progressively the number sequence from 9, 8, 7, 6, 5, 4, 3, 2, 1 and 0. This should be observed to ensure that all display segments and display drivers are working correctly.

  • Page 148: Servicing

    12 — Displays (CX20) 12.3 Servicing WARNING HIGH VOLTAGES EXIST INSIDE THE UNIT. BEFORE REMOVING THE COVER, ENSURE THAT MAINS POWER IS DISCONNECTED COMPLETELY. EXCEPT WHERE SPECIFIED IN THESE PROCEDURES, DO NOT APPLY POWER TO THE UNIT WHEN THE COVER IS REMOVED. Caution Before adjusting the DIL switches on the display PCBs, switch the machine OFF and leave for at least six...

  • Page 149: Removing A Tower Mounted Display Pcb

    12 — Displays (CX20) 12.3.3 Removing a tower mounted display PCB To remove a tower mounted display, proceed as follows: Switch off machine and isolate it from the mains power supply. Remove a display screen by prising it away from the display housing. Remove the two screws securing the display PCB, and free it from the housing by easing it down from under the two securing brackets.

  • Page 150: Display (Cx30/Cx34)

    Section 13 Display (CX30/CX34) Table of Contents: 13.1 Description 13–3 13.2 Testing 13–5 13.3 Configuration Data 13–5 13.4 Servicing 13–10 13.4.1 Removing a display PCB (CX30) 13–10 13.4.2 Fitting a display PCB (CX30) 13–10 13.4.3 Removing a display assembly (CX30) 13–11 13.4.4 Fitting a display assembly (CX30)

  • Page 151: Description

    13 — Display (CX30/CX34) 13.1 Description The CX30/CX34 machines have similar displays. Each machine has two displays: one at the front of the machine (vendor) and one at the rear (customer). On the CX30 both displays are mounted in a housing on top of a double column arrangement (single column on the CX30 TK machine) fitted to the rear of the machine.

  • Page 152: Figure

    13 — Display (CX30/CX34) On the metric displays four of the indicator panels (top row and bottom left) have six numeric–only characters, with each character accompanied by underline ( _ ), comma ( , ) and full point ( . ) punctuation/notation marks. The sixth character also bears the 1/2 fraction.

  • Page 153: Testing

    13 — Display (CX30/CX34) 13.2 Testing The displays are check–scanned during power–up. Initially, all segments and the LED are energized. All characters will then display progressively the number sequence 9, 8, 7, 6, 5, 4, 3, 2, 1 and 0. This should be observed to ensure that all display segments and display drivers are working correctly.
  • Page 154 13 — Display (CX30/CX34) Table 13.1 Metric Multi–line Display PCB – Switch Settings Vendor Part Number, Description and Decimal Point/Comma 71014–372 Decimal Point Price Base LEDs Price Base LEDs Comma 71014–373 Decimal Point Tare Transaction LEDs Tare Transaction LEDs Comma 71014–520 Decimal Point Price Base LEDs...
  • Page 155 13 — Display (CX30/CX34) Table 13.2 Metric Multi–line Display PCB – LED Allocation Customer and Vendor Display PCBs – LED Allocation Part Number and D1A D2 Description 71014–372 Price Base LEDs 71014–373 Tare Transaction LEDs 71014–520 Price Base LEDs 71014–521 Tare Transaction LEDs 71014–566 CX22 Price Base LEDs...
  • Page 156 13 — Display (CX30/CX34) Table 13.3 Avoir Multi–line Display PCB – Switch Settings Vendor Part Number and Description 71014–353: UK Avoir Price Base LEDs 71014–354: UK Avoir Tare Transaction LEDs 71014–518: UK Price Base LEDs 71014–519: UK Avoir Tare Transaction LEDs 71014–559: CX22 UK Avoir Price Base LEDs...
  • Page 157 13 — Display (CX30/CX34) Table 13.4 Avoir Multi–line Display PCB – LED Allocation Customer and Vendor Display PCBs – LED Allocation Part Number and D1A D2 Description 71014–353 Price Base LEDs 71014–354 Tare LEDs 71014–518 Price Base LEDs 71014–519 Tare LEDs 71014–559 CX22 Price Base LEDs 71014–560...

  • Page 158: Servicing

    13 — Display (CX30/CX34) 13.4 Servicing WARNING HAZARDOUS VOLTAGES EXIST INSIDE THE UNIT. BEFORE REMOVING THE COVER, ENSURE THAT MAINS POWER IS DISCONNECTED COMPLETELY. EXCEPT WHERE SPECIFIED IN THESE PROCEDURES, DO NOT APPLY POWER TO THE UNIT WHEN THE COVER IS REMOVED.

  • Page 159: Removing A Display Assembly (Cx30)

    13 — Display (CX30/CX34) 13.4.3 Removing a display assembly (CX30) To remove display assembly complete, proceed as follows: Disconnect mains supply. Remove closure plate at bottom of column casting by removing Posidrive screw and shakeproof washer. Remove display assembly complete from unit by detaching column casting from unit base by removing three sets of Posidrive screws and plain washers.

  • Page 160: Fitting A Display Assembly (Cx30)

    13 — Display (CX30/CX34) 13.4.4 Fitting a display assembly (CX30) To fit display assembly complete, proceed as follows: Fit column to column casting using two sets of Posidrive screws and shakeproof washers. Feed display loom (end with single connector) down through display housing, masking plate, right–hand side of column and through column casting.

  • Page 161: Fitting A Display Pcb (Cx34)

    13 — Display (CX30/CX34) 13.4.6 Fitting a display PCB (CX34) To fit a display PCB, proceed as follows: Fit both securing brackets to the display PCB using the two–piece rivets. Fit display PCB to pillars behind aperture, inside housing, by using the four screws through the securing brackets.
  • Page 162 Section 14 Keyboard Table of Contents: 14.1 Description 14–3 14.2 Testing 14–4 14.3 Servicing 14–4 14.3.1 Removing a keyboard (CX20/CX30) 14–4 14.3.2 Fitting a keyboard (CX20/CX30) 14–5 14.3.3 Removing a keyboard (CX34) 14–5 14.3.4 Fitting a keyboard (CX34) 14–6 CX20/CX30/CX34 Service Manual 14–1...

  • Page 163: Figure

    14 — Keyboard Figure 14.1 Keyboard Backing paper (protecting Warning label self–adhesive material) Keyboard surface WARNING TACTILE MEMBRANE SWITCHES CAN BE EASILY DAMAGED UNTIL FIXED TO A RIGID BACKING. DO NOT OPERATE UNLESS LYING ON A FLAT SMOOTH SURFACE. TAKE CARE NOT TO BEND MEMBRANE IN SWITCH AREAS WHEN REMOVING BACKING PAPER AND FIXING IN POSITION.

  • Page 164: Testing

    14 — Keyboard An operator overlay is adhered to the keyboard on which is printed function key, numeric and blank legends. The blank legend positions can be overwritten with wax crayon by the operator to match data programmed by the operator. A protective plastic cover is fitted in front of the keyboard.

  • Page 165: Fitting A Keyboard (Cx20/Cx30)

    14 — Keyboard 14.3.2 Fitting a keyboard (CX20/CX30) To fit a keyboard to CX20/CX30, proceed as follows: Clean case surface. Remove backing paper from rear of new keyboard to reveal self–adhesive material (do not press keyboard pads until keyboard is fitted to case of unit: to do so will distort permanently keyboard laminates).

  • Page 166: Figure

    14 — Keyboard 14.3.4 Fitting a keyboard (CX34) To fit a keyboard to CX34, proceed as follows: Clean case surface. Remove backing paper from rear of new keyboard to reveal self–adhesive material (do not press keyboard pads until keyboard is fitted to case of unit: to do so will distort permanently keyboard laminates).
  • Page 167 Section 15 CX30 TK Machine Table of Contents: 15.1 General 15–3 15.2 Mechanical Description 15–3 15.3 Electrical Description 15–4 15.4 Keyboard Controller PCB 15–4 15.4.1 Circuit description 15–4 15.4.2 Power Supplies 15–4 15.4.3 Links 15–5 15.5 Servicing 15–8 15.5.1 Removing the customer keyboard 15–8 15.5.2 Replacing the customer keyboard...

  • Page 168: General

    15 — CX30 TK Machine 15.1 General The CX30 TK machine is a customer self–service, label only machine. The CX30 TK is based on the CX30 LS but has a large keyboard, in place of the vendor keyboard, for customer self–service. The customer self–service keyboard can be column or remotely mounted and each machine can have either, or both together.

  • Page 169: Electrical Description

    15 — CX30 TK Machine The keyboard assembly is secured to the rear moulding by four plastic, two–piece rivets. The front moulding clips onto the rear moulding and is held in place by two lips (25 mm long) at the front of the rear moulding (top and bottom outside edges). There are two sizes of key, the full key and half key, which encompass four and two switches respectively when fitted on the keyboard assembly.

  • Page 170: Figure

    15 — CX30 TK Machine 15.4.3 Links Refer to Figure 15.2. There are four links on the keyboard controller PCB: D LK1: selects/disables power rest circuit. D LK2: connects FRAME GND to 0Vd. D LK3: selects numbers of keys – 64 large or up to 128 in any combination. D LK4: allows use of two 64–key keyboards.

  • Page 171: Figure

    15 — CX30 TK Machine Figure 15.2 Keyboard Controller PCB – Links Two keyboards (column and remote) – 64 large keys only on both keyboards LK4: must be in LK3: must be in LK2: for opposite position same position (posi- connecting (position B) on PCB tion A) on PCB on...

  • Page 172: Keyboard Controller Pcb – Pin Signals

    15 — CX30 TK Machine Figure 15.3 Keyboard Controller PCB – Pin Signals FRAMGND PL1 is a 25–way, DRIVE 16 molex type connector PL2 is not used DRIVE 15 DRIVE 14 DRIVE 13 DRIVE 12 DRIVE 11 DRIVE 10 DRIVE 09 DRIVE 08 DRIVE 07 DRIVE 06...

  • Page 173: Servicing

    15 — CX30 TK Machine 15.5 Servicing WARNING HIGH VOLTAGES EXIST INSIDE THE UNIT. BEFORE REMOVING THE COVER, ENSURE THAT MAINS POWER IS DISCONNECTED COMPLETELY. EXCEPT WHERE SPECIFIED IN THESE PROCEDURES, DO NOT APPLY POWER TO THE UNIT WHEN THE COVER IS REMOVED. 15.5.1 Removing the customer keyboard To remove the front moulding and gain general access to the keyboard interior,...

  • Page 174: Fitting The Keyboard Controller Pcb

    15 — CX30 TK Machine 15.5.4 Fitting the keyboard controller PCB To fit a new keyboard controller PCB, proceed as follows: Push the new keyboard controller PCB onto the four pillars at the rear of the new TK keyboard assembly. On the keyboard controller PCB connect the following: D keyboard switch PCB loom to PL1 D host communications loom TB1 and TB2...

  • Page 175: Removing The Switch Pcb Loom

    15 — CX30 TK Machine 15.5.7 Removing the switch PCB loom To remove the switch PCB loom, proceed as follows: Switch off machine and isolate it from the mains power supply. Remove the front moulding and keyboard assembly (refer to Section 15.5.1).
  • Page 176 Section 16 Power Supply Unit Table of Contents: 16.1 Description 16–3 16.2 Servicing 16–4 16.2.1 Gaining access to the power supply unit (CX20/CX30) 16–5 16.2.2 Gaining access to the power supply unit (CX34) 16–6 16.2.3 Replacing a fuse 16–7 CX20/CX30/CX34 Service Manual 16–1...

  • Page 177: Description

    16 — Power Supply Unit 16.1 Description The power supply unit transforms, rectifies and smooths the mains electricity supply into several lower–voltage outputs. The input voltage varies according to market and may be either 240 Vac or 110 Vac (determined by type of mains transformer and not selectable in service).

  • Page 178: Servicing

    16 — Power Supply Unit The output of the SMPS is protected by fuse FS2 (6.3A). The various power outputs are made available at PL1. When installed in a unit, the power supply is covered by a ventilated shroud. The shroud is fabricated from sheet aluminium. Table 16.1 Power Supply Unit –...

  • Page 179: Gaining Access To The Power Supply Unit (Cx20/Cx30)

    16 — Power Supply Unit WARNING 3 THE POWER SUPPLY UNIT AND ITS CONNECTING CABLES CARRY LETHAL VOLTAGES. THE HEATSINKS OF COMPONENTS V2 AND V3 ARE AT MAINS VOLTAGE (NEGATIVE RECTIFIED). THE BODIES OF OTHER COMPONENTS OF THE POWER SUPPLY UNIT ARE ALSO AT LETHAL VOLTAGES.

  • Page 180: Gaining Access To The Power Supply Unit (Cx34)

    16 — Power Supply Unit Disconnect 4–pole mains supply from SK1 on power supply PCB. Disconnect 16–pole power outlet harness from PL1 on power supply PCB. Remove two hexagonal, stand–off pillars from rear corners of power supply PCB. Remove power supply PCB by easing out (towards back of unit) from under the three securing tabs.

  • Page 181: Replacing A Fuse

    16 — Power Supply Unit Remove two hexagonal, stand–off pillars from right–hand side of power supply PCB. Completely remove power supply PCB by removing two screws and washers from left–hand side and lifting off. Place power supply PCB over chassis pillars and secure using two screws and shakeproof washers (left–hand side) and two hexagonal stand–off pillars (right–hand side).
  • Page 182 Section 17 Transducer Table of Contents: 17.1 Description 17–3 17.1.1 Transducer Assembly CX20/CX30 17–3 17.1.2 Transducer Assembly CX34 17–4 17.1.3 Suspension Assembly CX34 17–4 17.2 Testing 17–6 17.3 A/D PCB 17–6 17.4 Servicing 17–7 17.4.1 Removing the transducer (CX20/CX30) 17–7 17.4.2 Fitting the transducer (CX20/CX30) 17–7...

  • Page 183: Figure

    17 — Transducer 17.1 Description 17.1.1 Transducer Assembly CX20/CX30 Refer to Figure 17.1. On the CX20/CX30 machines the transducer is fitted centrally, in the the base of the machine to the chassis. The CX20 W does not have an internal transducer, it is connected to a remote weighing patform, the CX9/A702.

  • Page 184: Transducer Assembly Cx34

    17 — Transducer Each strain pad contains a series of fine wires which change in electrical resistance according to the mechanical strain across them. Movement of the transducer wall, caused by a weight being applied, will strain the pads and cause them to change resistance.

  • Page 185: Suspension Assembly (Cx34)

    17 — Transducer wide. The suspension yoke is fitted to the end of a connecting block, the base of which is connected to the left–hand end of the transducer assembly. The lower assembly comprises a connecting rod, insulating spigot, insulating washer and lower suspension bracket.

  • Page 186: Testing

    17 — Transducer 17.2 Testing The transducer cannot be tested as a separate part and must be tested as part of the unit. 17.3 A/D PCB The A/D PCB receives the analogue signal from the transducer when weight is applied to it. This signal is the change in resistance detected by the transducer’s strain gauges.

  • Page 187: Servicing

    17 — Transducer 17.4 Servicing Caution When handling the transducer housing be careful not to touch any of its internal components as they are extremely sensitive and are easily damaged. The transducer is assembled and adjusted at manufacture to precision tolerances and must not be further disassembled.

  • Page 188: Fitting The Transducer (Cx34)

    17 — Transducer Gain access to the suspension assembly at the front of the chassis and remove the suspension assembly (without mounting boss) by disconnecting the chassis earth wire from the transducer assembly and detaching the suspension hook by removing the two nuts over chassis studs (leave mounting in place).

  • Page 189: Cx9/A702 Remote Weighing Platform

    Section 18 CX9/A702 Remote Weighing Platform Table of Contents: 18.1 Description 18–3 18.2 Specifications 18–5 18.3 Servicing 18–5 18.3.1 Special Tool (15221) 18–5 18.3.2 Removing a transducer 18–5 18.3.3 Fitting the transducer 18–6 18.3.4 Using the C117 Special Tool 18–8 CX20/CX30/CX34 Service Manual 18–1...

  • Page 190: Figure

    18 — CX9/A702 Remote Weighing Platform 18.1 Description The CX9/A702 Remote Weighing Platform is used in conjunction with the CX20 W on ULMA wrapping machines. The CX9/A702 houses a transducer and is connected to the CX20 W via a transducer cable. Figure 18.1 CX9/A702 Remote Weighing Platform Weighplate...

  • Page 191: Figure

    18 — CX9/A702 Remote Weighing Platform Figure 18.2 CX9/A702 – Exploded View Weighplate Instrument screw Cover Cross Cover Transducer retainer Transducer assembly Blanking panel Base Output plate Stamping plate Adjustable levelling foot Spirit level 18–4 CX20/CX30/CX34 Service Manual...

  • Page 192: Specifications

    18 — CX9/A702 Remote Weighing Platform 18.2 Specifications Table 18.1 Specifications Subject Description Notes Dimensions 100 high x 280 wide x 350 deep (mm) Operating temperature –10_C to +40_C range Storage temperature –20_C to +70_C range Operating humidity range 0% to 95% (non–condensing) Storage humidity range 0% to 98% (non–condensing) 18.3...

  • Page 193: Fitting The Transducer

    18 — CX9/A702 Remote Weighing Platform Locate the 15221 in to the slots of the cross assembly (Figure 18.4) and remove the cross assembly from the transducer by holding the bottom arm securely and easing the top arm towards the bottom arm, releasing the cross assembly from the transducer.

  • Page 194: Figure

    18 — CX9/A702 Remote Weighing Platform Locate the bottom arm of the 15221 in the forward slot with top arm in the locating pin as shown in Figure 18.3. Hold the bottom arm firmly and pull the top arm until the cross assembly is in position.

  • Page 195: Using The C117 Special Tool

    18 — CX9/A702 Remote Weighing Platform 18.3.4 Using the C117 Special Tool The special tool C117 can also be used for removing or replacing the transducer and cross assembly. Figure 18.6 Special Tool (C117) Handle Handle securing screw (behind handle) Base Pivot pin The C117 is in two pieces, a base and handle.
  • Page 196 Section 19 Receipt Printer Table of Contents: 19.1 Description 19–3 19.2 Test and Adjustment 19–4 19.3 Servicing 19–4 19.3.1 Removing the printer (CX20/CX30) 19–4 19.3.2 Fitting the printer (CX20/CX30) 19–5 19.3.3 Removing the printer (CX34) 19–5 19.3.4 Fitting the printer (CX34) 19–6 19.3.5 Cleaning the print head...

  • Page 197: Figure

    19 — Receipt Printer Figure 19.1 Ticket Printer (CX20/CX30) Ribbon cable (data) Microswitch assembly Printer assembly Screw (for securing microswitch assembly) Screw and shakeproof and plain washers (for securing printer assembly and mounting bracket) Mounting bracket Spigot Bolt (for securing Spine spigot) Washer...

  • Page 198: Test And Adjustment

    19 — Receipt Printer The paper tractor mechanism consists of a rubber friction roller (print roller), and a reduction gear train of two–stage spur gears. The print head is spring–loaded to contact the friction roller, which then grips the paper. The firm contact of the print head against the friction roller, with the paper trapped between them, also enables thermal printing.

  • Page 199: Fitting The Printer (Cx20/Cx30)

    19 — Receipt Printer If not already disconnected, disconnect following electrical connections on main PCB: D PL3, printer data supply D PL7, printer motor supply D PL16, microswitch Remove printer and unit spine by removing two sets of Posidrive screws, shakeproof washers and plain washers securing spine to chassis.

  • Page 200: Fitting The Printer (Cx34)

    19 — Receipt Printer 19.3.4 Fitting the printer (CX34) To fit the printer complete with unit spine, proceed as follows: Fit printer and unit spine to chassis by fitting two bolts, shakeproof washers and plain washers. Carefully ease free end of electrical looms and cables through hole in chassis (to main PCB side).

  • Page 201: Changing The Microswitch

    19 — Receipt Printer Remove print head by removing retaining rod (press out). Assemble in reverse order, applying two spots of locking paint between retaining rod and printer case. When installed in unit, print quality must be checked. 19.3.7 Changing the microswitch To change the microswitch, proceed as follows: Detach microswitch by removing Posidrive screw securing it to printer case.
  • Page 202 Section 20 Label and Receipt Printer Table of Contents: 20.1 Description 20–3 20.2 Test and Adjustment 20–5 20.3 Servicing 20–6 20.3.1 Removing the printer (CX20/CX30) 20–6 20.3.2 Fitting the printer (CX20/CX30) 20–6 20.3.3 Removing the printer (CX34) 20–7 20.3.4 Fitting the printer (CX34) 20–7 20.3.5 Cleaning the print head...

  • Page 203: Description

    20 — Label and Receipt Printer Figure 20.1 Label and Receipt Printer (CX20/CX30) Screw (for secur- ing retaining plate) Spring (take–up spool) Label (paper feed instructions) Printer assembly (Rohm) Retaining Cross protection plate plate 2–off corner stops (CX20/CX30 only) Take–up spool Spine Loom (print...
  • Page 204 20 — Label and Receipt Printer The cassette carries the loaded ticket roll on a fixed drum. The drum has splines at its upper edge and is sized to allow the paper roll to rotate with a small amount of friction when pulled by the tractor mechanism. The cassette has an anvil at the dispensing edge to encourage self–adhesive labels to detach easily from their backing paper.

  • Page 205: Test And Adjustment

    20 — Label and Receipt Printer The stepper motor is a two–coil unit and is mounted on the printer spine by two stand–off pillars. The motor is supplied with power by two integral pairs of wires which connect directly to the wiring harness of the printer. The drive from the motor is transmitted through a rotary output shaft, on which is mounted a splined, drive gear.

  • Page 206: Servicing

    20 — Label and Receipt Printer 20.3 Servicing Caution The print head is made of precision–manufactured materials and must not be scratched or scored. Avoid any contact with metal objects (such as a screwdriver blade). 20.3.1 Removing the printer (CX20/CX30) To remove printer complete with unit spine, proceed as follows: Switch off machine and isolate it from the power supply.

  • Page 207: Removing The Printer (Cx34)

    20 — Label and Receipt Printer 20.3.3 Removing the printer (CX34) To remove printer complete with unit spine, proceed as follows: Switch off machine and isolate it from the mains power supply. Remove front housing (refer to Section 3). Disconnect the following electrical connections on main PCB: D PL3, printer data supply D PL7, printer motor supply D PL16, microswitch...

  • Page 208: Changing The Stepper Motor

    20 — Label and Receipt Printer Fit new take–up motor/gearbox complete with drive cone using three sets of Posidrive screws and shakeproof washers. Connect take–up motor loom at interconnection. Fit drive cone to motor drive shaft using Posidrive screw and shakeproof washer through bore of drive shaft.

  • Page 209: Changing The Print Head

    20 — Label and Receipt Printer Remove toothed belt from friction roller’s drive gear by loosening the tension on the toothed belt by undoing (but not removing) the two screws securing the stepper motor to the stand–up pillars. Remove friction roller by removing the two sets of Posidrive screws and shakeproof washers from end of bracket: thrust washer will fall away and friction roller can be pulled out of spine.

  • Page 210: Changing The Photodetector

    20 — Label and Receipt Printer 20.3.10 Changing the photodetector To change photodetector, proceed as follows: Remove printer as detailed in Sections 20.3.1 and 20.3.3, as appropriate. Detach stepper motor from printer spine (refer to Section 20.3.7): there is no need to cut the cable tie. Remove paper cassette by setting print head arm upwards (so lifting print head) and pulling cassette outwards.
  • Page 211 20 — Label and Receipt Printer Free the printer ribbon cable loom from top of printer spine. Release but do not remove print head bracket by removing three sets of Posidrive screws and shakeproof washers. Carefully remove bracket, noting position of two shafts (one spring–loaded) which locate within bracket: bracket must be disengaged from print head arm.

  • Page 212: Networking

    Section 21 Networking Table of Contents: 21.1 Networking 21–3 21.1.1 Network cabling 21–4 CX20/CX30/CX34 Service Manual 21–1...

  • Page 213: Figure

    21 — Networking 21.1 Networking IMPORTANT (1): The network’s cable screen MUST be connected to the chassis of each network machine. IMPORTANT (2): An ISC link between machines with Phase 1.3 software release and machines with pre–Phase 1.3 software release is not possible.

  • Page 214: Networking

    21 — Networking Nomination of Master or Slave identity is by way of a wire link in the external plug which connects the unit to the network: pins 1–6 = Master; pins 3–7 = Slave (see Figure 21.1) . The use of an external link means that changes are not required to any unit to make it work as a Master.
  • Page 215 Section 22 Communications Controller Table of Contents: 22.1 Description 22–3 22.1.1 C918 external comms controller unit 22–4 22.2 Network Connections 22–4 22.2.1 Dual comms controller operation 22–5 22.3 Comms PCB – Main Components 22–6 22.4 Servicing 22–10 22.4.1 C918 external comms controller unit 22–10 CX20/CX30/CX34 Service Manual 22–1...

  • Page 216: Description

    It can be fitted to one or more scales and communicates via three bi–directional serial channels: The Avery Berkel interscale communications multidrop network (ISC) current loop. (The ISC channel is always present on comms PCB.) An RS232 channel. This allows point–to–point Host/Master channel or interface.

  • Page 217: C918 External Comms Controller Unit

    22 — Communications Controller 22.1.1 C918 external comms controller unit The comms controller PCB can be housed in a C918 external comms controller unit. 22.2 Network Connections IMPORTANT (1): The network’s cable screen MUST be connected to the chassis of each network machine. IMPORTANT (2): The link on the MASTER unit, between pins 1 and 6, is not used on networks fitted with communications controllers.

  • Page 218: Dual Comms Controller Operation

    22 — Communications Controller 22.2.1 Dual comms controller operation IMPORTANT: Dual controller operation is only available on networks with Phase 1.3 software release and above. Networks with dual comms controller operation have two comms controller PCBs. One PCB operates as in a normal, single comms controller network. The other operates as a back up by taking over from it if it fails.

  • Page 219: Comms Pcb – Main Components

    22 — Communications Controller 22.3 Comms PCB – Main Components Figure 22.2 Comms PCB – Component Highlight BAT1 BAT1 Í Í Í Í Í Í Í Í Í Í Í Í Í Í Í Í Í Í Í Í Í TP13 TP15 TP13...
  • Page 220 22 — Communications Controller Table 22.1 Comms PCB – Main Components Batteries BAT1 For RAM back–up. Light Emitting Diodes (LEDs) The LED flashes to indicate software error or failure. The number of flashes represent an error number (printed on TEST REPORT instead of comms controller software number) which represents a software error.

  • Page 221: Comms Pcb – Links Lk1, Lk6, Lk7

    22 — Communications Controller Figure 22.3 Comms PCB – Links LK1, LK6, LK7 27512 (64k x 8) and 27C101 27C020 (256k x 8) (128k x 8) EPROMs EPROM Link LK6 27C401 (512k x 8) EPROM Link LK7 Links are in the 1–2 position BAT1 Í...

  • Page 222: Comms Pcb – Switch Settings

    22 — Communications Controller Figure 22.4 Comms PCB – Switch Settings Battery ON/OFF (Switch SW2 is in the Battery ON position) Í Í Í Í Í Í Í Í Í Í Í Í SW1: not used (always set in this position) BAT1 Í...

  • Page 223: Servicing

    22 — Communications Controller 22.4 Servicing 22.4.1 C918 external comms controller unit For servicing details of the of the C918 refer to Page xvii in the Overview section. 22–10 CX20/CX30/CX34 Service Manual...

  • Page 224: Rs232 Interface Pcb (Cx20 W)

    Section 23 RS232 Interface PCB (CX20 W) Table of Contents: 23.1 General 23–3 23.2 Circuit Description 23–4 23.2.1 RS232 interface 23–4 23.2.2 Wrapper control signal interface 23–4 23.2.3 Wrapper ready signal (control interface version 2 only) 23–4 23.2.4 Scale in control signal (control interface version 2 only) 23–5 23.2.5 Analogue interface...
  • Page 225 23 — RS232 Interface PCB (CX20 W) 23.1 General The RS232 interface PCB provides an interface with a wide range of wrapping machines. It supplies RS232 ASCII serial data for the ULMA 200 Series which enables selection of an internal wrapper program or initialising the wrapper start cycle.

  • Page 226: Circuit Description

    23 — RS232 Interface PCB (CX20 W) An RS232 serial interface transmits data .at 2400 Baud to the ULMA UL200 Series of machines. 23.2 Circuit Description The RS232 interface PCB provides an RS232 serial channel by automatically multiplexing the DCU channel. 23.2.1 RS232 interface The DCU has a hard–wire link inside the D–type shell.

  • Page 227: Scale In Control Signal (Control Interface Version 2 Only)

    23 — RS232 Interface PCB (CX20 W) 23.2.4 Scale in control signal (control interface version 2 only) This signal is an output from the scale to the wrapping machine to show the scale is in wrapping mode and the wrapping machine needs to take control of the wrapping system.

  • Page 228: Ulma 200 Series Wrapper Protocol

    23 — RS232 Interface PCB (CX20 W) 23.2.8 ULMA 200 series wrapper protocol The ULMA 200 Series machine enables a remote device to select any of 99 preset wrapper programs via a program reference number transmitted serially. The program number has film dimensions and tension parameters stored in the wrapper.

  • Page 229: Serial Interface Devices

    23 — RS232 Interface PCB (CX20 W) 23.2.9 Serial interface devices There are now a large number of devices that can that be connected to channel B of the 82530 DUART on the main PCB. In a typical application not all devices will be required.

  • Page 230: Wiring Interconnections

    Section 24 Wiring Interconnections Table of Contents: 24.1 CX20/CX30 24–3 24.2 CX20 W 24–8 CX20/CX30/CX34 Service Manual 24–1...

  • Page 231: Cx20/Cx30

    24 — Wiring Interconnections 24.1 CX20/CX30 Figure 24.1 Connector Pins on Main PCB – PL6, PL8 and PL13 Ç Ç Ç Ç Ç Ç Ç Ç Ç Ç ROHM- Ç Ç Ç Ç Ç PRINTER HEAD Ç Ç Ç Ç Ç SERIAL–DATA–CLK Ç...

  • Page 232: Cx20/Cx30

    24 — Wiring Interconnections Figure 24.2 Connector Pins on Main PCB – PL2, PL9, PL12 and PL15 FIL2 FIL2 NETWORK ISC FIL1 FIL1 0VDIS 0VDIS 0VDIS MS SENSE 0VDIS DATA OUT SIGNAL +VDIS I SOURCE +VUN CUST. A110 DSO 0VDIS STROBE +5VD DISPLAY...

  • Page 233: Figure

    24 — Wiring Interconnections Figure 24.3 Connector Pins on Main PCB – PL7, PL14, PL17, PL18 and SK1 É É É É É É Control signal 0V to run É É É É É É DC MOTOR 24VDC É É É É É É OUT B COMMS PCB OUT B...

  • Page 234: Figure

    24 — Wiring Interconnections Figure 24.4 Connector Pins on Main PCB – PL20, PL19 and PL16 FIL1 FIL1 FIL1 F17G COM1 F16G 0VDIS REAR STROBE DISPLAY F12G F11G 0VDIS 0VDIS PL20 COM2 PL16 F15G PL19 FIL2 FIL2 FIL2 SWITCH 2 0VD Pin signals are the same as for PL20.

  • Page 235: Figure

    24 — Wiring Interconnections Figure 24.5 Connector Pins on Main PCB – PL3 Ç Ç Ç Ç Ç Ç Ç Ç Ç Ç AXIOM- PRINTER Ç Ç Ç Ç Ç HEAD Ç Ç Ç Ç Ç DATA TO HEAD +5VD STROBES STROBES STROBES...

  • Page 236: Figure

    24 — Wiring Interconnections 24.2 CX20 W Figure 24.6 PCB Interconnection Diagram (CX20 W) To comms controller (70734–522) Í Í Í To remote transducer Í Í Í connector connector plate COMMS PCB Wrapper output RS232 PCB assembly (70734–526) RS232 output (70734–665) To reflective photocell (70734–527) To reflective photocell (70734–527) To output plate...

  • Page 237: Figure

    24 — Wiring Interconnections Figure 24.7 Connector Pins on RS232 PCB (CX20 W) – PL1, PL2 and PL5 +10V +10V –12VI +12VI Í Í Í Í Í Í RS232 PCB COMMS PCB Refer to PL9 on main PCB. See Figure 24.2. MAIN PCB PL14 PL12...
  • Page 238 24 — Wiring Interconnections Figure 24.8 Connector Pins on RS232 PCB (CX20 W) – PL3, PL4, PL7, PL8, TB1 and TB2 CX9/A702 REMOTE ’OLD STYLE’ WEIGHING PLATFORM WRAPPER 5–way DIN Connects to on connector 3–way DIN plate connector on RS232 PCB assembly output plate (Yellow) Signal –...

  • Page 239: Appendices

    Section 25 Appendices Table of Contents: 25.1 Configuration Option Tables for Old Software 25–3 25.1.1 Option Tables for Mod.3 Software Release 25–3 25.1.2 Option Tables for Pre–Phase 1.2 Software Release 25–7 25.2 Label Formatting 25–17 25.2.1 Calculating the offset 25–17 25.2.2 Field data tables 25–18...

  • Page 240: Configuration Option Tables For Old Software

    25 — Appendices 25.1 Configuration Option Tables for Old Software The following sub–sections give the configuration option tables, used during machine configuration (see Section 6), on machines with software prior to Phase 1.3 software release. 25.1.1 Option Tables for Mod.3 Software Release The following option tables are for Mod.3 software release.
  • Page 241 25 — Appendices Digit 7 — Timeout On PLU Selection No timeout 0.8 seconds 0.4 seconds 1.0 seconds 0.6 seconds 1.2 seconds Digit 8 — Tax Printing Options Inclusive tax systems only. No reference to tax value on receipt Tax value shown on receipt Digit 9 —...
  • Page 242 25 — Appendices Digit 2 — Security Reports Security reports OFF Security reports ON Digit 3 — Communications Controller No communications controller fitted Communications controller fitted; no sys- tem menus Communications controller fitted Digit 4 — Voids Voids printed on receipt Voids not printed on receipt Digit 5 —...
  • Page 243 25 — Appendices Table 25.3 Country Override Configuration The country override option is selected by choosing X option in Digit 1 in System Configuration (refer to Table 25.2). Digit 1 — Unit Price Format 0 to 99999 0 to 999990 0 to 999999 Digit 2 —...

  • Page 244: Option Tables For Pre-Phase 1.2 Software Release

    25 — Appendices 25.1.2 Option Tables for Pre–Phase 1.2 Software Release The following option tables are for pre–Phase 1.2 software release. Table 25.4 Machine Configuration for the LS/ECR Machines Digit 1 — Capacity 30 kg x 5 g 300 kg 100 g 25 lb x 1/8 oz Spare 30 lb x 0.01 lb...
  • Page 245 25 — Appendices Digit 8 — Tax Printing Options Inclusive tax systems only. No reference to tax value on receipt Tax value shown on receipt Digit 9 — Weight Reading Freeze Weight reading freeze OFF Weight reading freeze ON Digit 10 — Price Base/Surcharge Single price base;...
  • Page 246 25 — Appendices Voids printed on receipt Voids not printed on receipt CX20/CX30/CX34 Service Manual 25–9...
  • Page 247 25 — Appendices Digit 5 — Operator Training Only trading mode active Trading and training modes active Digit 6 — X totals Sub totals and totals Sub totals only Digit 7 — Totals clear Totals clear ON Totals clear OFF Digit 8 —...
  • Page 248 25 — Appendices Table 25.6 Country Override Configuration for the LS/ECR Machines The country override option is selected by choosing X option in Digit 1 in System Configuration (refer to Table 25.5). Digit 1 — Unit Price Format 0 to 99999 0 to 999990 0 to 999999 Digit 2 —...
  • Page 249 25 — Appendices Digit 2 — Tare System Free tare; stored tare Free tare; graduated tare Free tare; stored tare; graduated tare Cumulative free tare Cumulative free tare; stored tare Cumulative free tare; graduated tare Cumulative free tare; stored tare; grad- Cumulative free tare;...
  • Page 250 25 — Appendices Table 25.8 System Configuration for the LS and TK Machines Digit 1 — Country Selection Country options are fixed A to M: if a soft option is required select X (refer to Table 25.9). United Kingdom South Africa Holland Australia France...
  • Page 251 25 — Appendices Digit 12 — Host Comms Baud Rate 1200 Baud 1200 Baud 2400 Baud 2400 Baud Note: This option is not available on machines with software prior to mod. 2. Digit 13 — UNDEFINED Digit 14 — UNDEFINED Digit 15 —...
  • Page 252 25 — Appendices Table 25.10 Machine Configuration for the R and ECR Machines Digit 1 — Capacity 30 kg x 5 g 300 kg 100 g 25 lb x 1/8 oz Spare 30 lb x 0.01 lb Spare 15 kg x 5g Spare 6 kg x 2 g Spare...
  • Page 253 25 — Appendices Digit 11 — Printer Attached Printer attached No printer attached Digit 12 — Weighing Control Weighing OFF Weighing ON Digit 13 — UNDEFINED Digit 14 — UNDEFINED Digit 15 — UNDEFINED Digit 16 — UNDEFINED Table 25.11 System Configuration for the R and ECR Machines Digit 1 —...
  • Page 254 25 — Appendices Digit 9 — Z System Totals Printing Menu selected Grand totals; machine totals; groups totals; operator totals Grand totals only Grand totals; machine totals; groups totals; operator totals; hourly totals Grand totals; machine totals Grand totals; machine totals; groups totals; operator totals;...

  • Page 255: Label Formatting

    25 — Appendices 25.2 Label Formatting 25.2.1 Calculating the offset Refer to Figure 9.3. To calculate the offset value a (in co–ordinates) use the following formula: a = c – (d x b) Equation (1) Where: a = offset value (co–ordinate) b = width of label (mm) c = total number of dots across print head d = print head dots per millimetre...
  • Page 256 25 — Appendices 25.2.2 Field data tables It is recommended that, for each new label format, Tables 25.13 and 25.14 be photocopied, filled in and kept, giving a copy to the customer, for record purposes. Table 25.13 Field Measurements Field Measurements (mm) Name Code...
  • Page 257 25 — Appendices Table 25.14 Programmed Data Customer: Format Reference Number: Machine Type: Rotation (0 , 90 or 180 ) : Date: Field Co–ordinates Font Ref Font Ref. Name Code TEXT 1 TEXT 2 TEXT 3 SALES TEXT 1 DATE 1 DATE 2 UNIT PRICE WEIGHT/ITEMS...

  • Page 258: Parts List

    Section PL Parts List CX20/CX30/CX34 Service Manual PL–1...
  • Page 259 PL – Parts List Figure PL.1 CX20 Series 610, 620 140, 150, 260, 330, 340 120, 780 280, 760 490, 600 180, 680, 700 490, 600 190, 440, 160, 540, 550, 560, 570, 960 360, 370 50, 390, 590 PL–2...
  • Page 260 PL – Parts List Figure PL.1 ITEMS – CX20 Series Item numbers preceded with ’N’ are not illustrated. Item Description Part Number PCB, A/D Converter 71014–646 Base 61661–176 Skirt, Base: UK: RFI Coated 61661–181 Non–UK: Non–RFI Coated 61661–175 Spacer, Transducer Block 63644–430...
  • Page 261 PL – Parts List Figure PL.1 ITEMS – CX20 Series Item numbers preceded with ’N’ are not illustrated. Item Description Part Number Pillar, Long Bumper Stop 63547–406 Pillar, Short Bumper Stop 63547–407 Printer Door Assembly: 70228–248 Door, Printer Lower 62348–106 Door, Printer Upper 62348–108...
  • Page 262 PL – Parts List Figure PL.1 ITEMS – CX20 Series Item numbers preceded with ’N’ are not illustrated. Item Description Part Number Transducer: T103 + Fitt: 15 kg; Unsealed 70717–432 T103 + Fitt: 15 kg; Sealed 70717–434 T103 + Fitt; 6 kg; Unselaed 70717–431...
  • Page 263 PL – Parts List Figure PL.1 ITEMS – CX20 Series Item numbers preceded with ’N’ are not illustrated. Item Description Part Number Washer, M6, Plain – for Cross 15711–206 Support, PCB; Reverse Locking (Comms Controller) 18136–718 Printer Assembly: Label/Receipt – see Figure PL.6 70588–520...
  • Page 264 Loom, Photocell Switch 70734–523 N940 Loom, A/D PCB 70734–525 N950 Loom, Display External 70734–435 Set of Keys, Keyring and Fob; Avery Berkel: Export (White) 13846–019 Home (Red) 13846–018 N970 Strip, Keyboard Support – for new Membrane Keyboard and Backplate 65318–886...
  • Page 265 PL – Parts List Figure PL.2 CX20 W 140, 340, 260 1030 120, 780 1020 1040 1050 1060 280, 760 180, 680, 700 160, 540, 550, 560, 570, 960 50, 390, 590 PL–8 CX20/CX30/CX34 Service Manual...
  • Page 266 PL – Parts List Figure PL.2 ITEMS – CX20 W Item numbers preceded with ’N’ are not illustrated. Item Description Part Number PCB, A/D Converter 71014–646 Sub Base Casting 61661–176 Skirt, Base: UK: RFI Coated 61661–181 Non–UK: Non–RFI Coated 61661–175 Cover, For Switch Mode PSU 61226–188 Protection Plug, Cross...
  • Page 267 PL – Parts List Figure PL.2 ITEMS – CX20 W Item numbers preceded with ’N’ are not illustrated. Item Description Part Number Overlay, Keyboard, Programming: 65379–197 Canada 65379–236 65379–231 Italy 65379–229 Germany, Austria, Switzerland 65379–186 Holland 65379–239 France 65379–237 Belgium 65379–194 Mexico 65379–238...
  • Page 268 70734–526 N910 Loom, Wrapper Control 70734–524 N920 Loom, Photocell Switch 70734–523 N940 Loom, A/D PCB 70734–525 Set of Keys, Keyring and Fob; Avery Berkel: Export (White) 13846–019 Home (Red) 13846–018 N970 Load Cell Cable Assembly 70734–551 N980 Loom, Printer Sensor 70734–321...
  • Page 269 PL – Parts List Figure PL.3 CX30 140, 150, 260, 620, 630 320, 330 470, 610 470, 610 680, 280 190, 420, 160, 520, 530, 540, 700 360, 580, 50, 370, 550, 570 340, 350 PL–12 CX20/CX30/CX34 Service Manual...
  • Page 270 PL – Parts List Figure PL.3 ITEMS – CX30 Series Item numbers preceded with ’N’ are not illustrated. Item Description Part Number A/D Converter PCB Assembly – Non–secure 71014–646 Base 61661–176 Skirt, Base 61661–175 Spacer, Transducer Block 63644–430 Cover, For Switch Mode PSU 61226–188 Cup, Rubber, Conductive (For Cross) 63228–108...
  • Page 271 PL – Parts List Figure PL.3 ITEMS – CX30 Series Item numbers preceded with ’N’ are not illustrated. Item Description Part Number Printer Door Assembly: 70228–248 Door, Printer Lower 62348–106 Door, Printer Upper 62348–108 Overlay, Keyboard, Operator’s: Holland 65378–968 65378–971 France 65378–987 Canada...
  • Page 272 PL – Parts List Figure PL.3 ITEMS – CX30 Series Item numbers preceded with ’N’ are not illustrated. Item Description Part Number Plate Assembly, Mains Input 70785–580 N440 Fuse, 2A, Anti–surge, 20 mm 70662–157 Loom, Cash Drawer 70734–289 N460 Loom, Mains Input/PSU 70734–302 Loom, Host/Master 70734–374...
  • Page 273 640K: Export CX300M00000000 1024K: Export CX300N00000000 Screw, M5x16, Securing, Printer Spine 13758–544 Cover, Side 62348–109 Set of Keys, Keyring and Fob; Avery Berkel: Export (White) 13846–019 Home (Red) 13846–018 N710 Strip, Keyboard Support – for new Membrane Keyboard and Backplate 65318–886 Assembly only PL–16...
  • Page 274 PL – Parts List Figure PL.4 Head–up Display Assembly (CX30) 30, 40 120, 40 150, 160 120, 40 Figure PL.4 ITEMS – Head Up Display Assembly (CX30) Item numbers preceded with ’N’ are not illustrated. Item Description Part Number Column 61656–146 Plate, Masking, Headwork 65336–177...
  • Page 275 PL – Parts List Figure PL.4 ITEMS – Head Up Display Assembly (CX30) Item numbers preceded with ’N’ are not illustrated. Item Description Part Number PCB, Display: Avoir: Price Base LEDs 71014–353 Metric: Price Base LEDs 71014–372 Metric: Tare LEDs 71014–373 Loom, Head–up Display 70734–437...
  • Page 276 PL – Parts List Figure PL.5 Receipt Printer Figure PL.5 ITEMS – Receipt Printer Item numbers preceded with ’N’ are not illustrated. Item Description Part Number Receipt Printer Assembly (Axiom) 70588–521 Axiom Printer with Microswitch 70555–115 Spine, Printer 66176–122 Loom, Printer Unit 70734–286 Pillar, Support, Tally Roll 63228–110...
  • Page 277 PL – Parts List Figure PL.6 Label and Receipt Printer 90,190 PL–20 CX20/CX30/CX34 Service Manual...
  • Page 278 PL – Parts List Figure PL.6 ITEMS – Label and Receipt Printer Item numbers preceded with ’N’ are not illustrated. Item Description Part Number Printer Assembly, Label And Receipt (Rohm) 70588–520 Moulding, Cassette 61355–122 Belt, Drive, XB2 66872–121 Label, Paper Feed 67833–407 Knob, Locking, Take–up Spool 68718–136...
  • Page 279 PL – Parts List Figure PL.7 Head–up Display Assembly (CX30 TK – Column Mounted Version) Figure PL.7 ITEMS – Head–up Display Assembly (CX30 TK – Column Mounted Version) Refer to Figure PL.3 for parts not listed below. Item numbers preceded with ’N’ are not illustrated. Item Description Part Number...
  • Page 280 PL – Parts List Figure PL.8 Column and Keyboard Support (CX30 TK – Column Mounted Version) Figure PL.8 ITEMS – Column and Keyboard Support (CX30 TK – Column Mounted Version) Refer to Figure PL.3 for parts not listed below. Item numbers preceded with ’N’ are not illustrated. Item Description Part Number...
  • Page 281 PL – Parts List Figure PL.9 Keyboard Assembly (CX30 TK – Column Mounted Version) 70, 80, 90, 100 40, 50 Figure PL.9 ITEMS – Keyboard Assembly (CX30 TK – Column Mounted Version) Item numbers preceded with ’N’ are not illustrated. Item Description Part Number...
  • Page 282 PL – Parts List Figure PL.10 CX9/A702 CX20/CX30/CX34 Service Manual PL–25...
  • Page 283 PL – Parts List Figure PL.10 ITEMS – CX9/A7027 Item numbers preceded with ’N’ are not illustrated. Item Description Part Number Weighplate 68431–123 Cross Rubber 63348–102 Top Cover 66538–181 Cross 68478–515 Blanking Panel 66538–175 Base 61662–262 Spirit Level Bulb 68777–106 Levelling Foot: 61664–151 Rubber Bumper...
  • Page 285 Address of local service branch: Avery Berkel Weighing Products The right is reserved to vary or modify any specification without prior notice. Company...
  • Page 286 Addendum A Phase 1.4 CX34 Parts List This Addendum is for the Service Manual for the CX20, CX30 and CX34 Series of Retail Scales, Part Number 76101–452. 76102–584 Issue 1/01.02.96...

  • Page 288: Figure 11.2 Main Pcb - Dil Switches And Potentiometers

    Addendum A Phase 1.4 and CX34 Parts List Table of Contents: Introduction A–3 Print Density (Menu Option) A–4 A.2.1 Rohm print head – 7.52 dots/mm A–4 A.2.2 Axiohm print head – 7.52 dots/mm A–5 Configuration Option Tables A–6 Label formatting A–11 Error messages A–11...
  • Page 289 Contents Figure A.9 Chassis Assembly – Filter and Comms Connectors A–22 Figure A.10 Chassis Assembly – Filter Looms A–23 Figure A.11 Chassis Assembly –SMPS PCB Assembly A–23 Figure A.12 Chassis Assembly – SMPS PCB Cover A–24 Figure A.13 Chassis Assembly – Printer Spine Assembly A–24 Figure A.14 Chassis Assembly –...
  • Page 290 Addendum A — Phase 1.4 and CX34 Parts List Introduction This addendum to be read in conjunction with the Service Manual for the CX20, CX30 and CX34 Series of Retail Scales, Part Number 76101–452. This addendum reflects the upgrade to Phase 1.4 and includes the Parts List for the CX34.
  • Page 291 Addendum A — Phase 1.4 and CX34 Parts List Print Density (Menu Option) Refer to Section 5 in the manual. There are new high resolution Rohm and Axiohm print heads at 7.52 dots/millimetre. Refer to the manual for information on changing the print density. A.2.1 Rohm print head –...
  • Page 292 Addendum A — Phase 1.4 and CX34 Parts List A.2.2 Axiohm print head – 7.52 dots/mm IMPORTANT: This printer will be available from mid 1996 onwards. Table 5.1 in the manual refers to the Axiohm 3 dots per millimetre print head. The following table gives the density setting information for the 7.52 dots per millimetre print head.
  • Page 293 Addendum A — Phase 1.4 and CX34 Parts List Configuration Option Tables Refer to Section 6 in the manual. The following tables give the configuration options: Table A.3 Machine Configuration Digit 1 — Capacity 30 kg x 5 g Spare 25 lb x 1/8 oz Spare 30 lb x 0.01 lb...
  • Page 294 Addendum A — Phase 1.4 and CX34 Parts List Digit 8 — Tax Printing Options Inclusive tax systems only. No reference to tax value on receipt Itemised tax printing on receipt Tax value shown on receipt Digit 9 — Weight Filtering 0.75 division weight filter 8 division weight filter 1 division weight filter...
  • Page 295 Addendum A — Phase 1.4 and CX34 Parts List Table A.4 System Configuration Digit 1 — Country Selection United Kingdom Belgium Holland Austria France Switzerland Germany Italy Canada Denmark Mexico Norway Portugal South Africa Greece Australia Spain New Zealand Digit 2 — Security Reports Security reports OFF Security reports ON Digit 3 —...
  • Page 296 Addendum A — Phase 1.4 and CX34 Parts List Digit 12 — Host Communications Baud Rate 1200 Baud 4800 Baud 2400 Baud 9600 Baud Digit 13 — Tare Printing Options No reference to tare value on receipt Tare value shown on receipt Digit 14 —...
  • Page 297 Addendum A — Phase 1.4 and CX34 Parts List Digit 7 — Transaction Acknowledgement No acknowledge Accepted message acknowledge Recall sub–total acknowledge Digit 8 — Transaction Network Response Normal Enhanced Digit 9 — Operator Sub–total Recall Recall off Recall on A–10 CX20/CX30/CX34 Addendum A...
  • Page 298 Addendum A — Phase 1.4 and CX34 Parts List Label formatting Refer to Section 9 in the manual. There is a new label field, number 24, which is for the new safe handling logo. The new high resolution printer provides new fonts, 1 to 8, shown below (full size): Error messages Refer to Section 10 in the manual.
  • Page 299 Addendum A — Phase 1.4 and CX34 Parts List Main PCB and wiring interconnections Refer to Sections 11 (Main PCB) and 24 (Wiring Interconnections) in the manual. Addition of PL22. Figure A.1 Connector Pins on Main PCB – PL22 DATA RETURN DATA CLOCK +5VD STROBES...
  • Page 300 Addendum A — Phase 1.4 and CX34 Parts List Figure A.2 Main PCB – DIL Switches and Potentiometers CX20/CX30/CX34 Addendum A A–13...
  • Page 301 Addendum A — Phase 1.4 and CX34 Parts List Table A.6 Main PCB – DIL Switch and Potentiometer Functions Printer test initiate (momentarily on = generate test print) Roman/Greek characters (on = Greek; off = Roman) Take–up spool (on = will run in receipt mode) Print head resolution (off = 3 dots/mm;...
  • Page 302 Addendum A — Phase 1.4 and CX34 Parts List Figure A.3 Main PCB – Location of Links Note: In this diagram, Pin 1 of each link is identified by a shaded area with a “1” adjacent to it. LK3 LK17 LK12 LK19 LINK CONFIGURATION –...
  • Page 303 Addendum A — Phase 1.4 and CX34 Parts List Table A.7 Main PCB – Link Functions Link Type Description 2–way DC motor boost (1–2 = selected) 2–way Scale EPROM select (1–2 = 2 x 128K standard fit or 2 x 256K; 2–3 = 2 x 512K) 2–way Printer software select (1–2 = Phase 1.3;...
  • Page 304 Addendum A — Phase 1.4 and CX34 Parts List Parts List A.7.1 Main PCB Refer to Figure PL.1 (CX20) in the manual. PCB, Main 71014–812 Refer to Figure PL.2 (CX20W) in the manual. PCB, Main 71014–812 Refer to Figure PL.3 (CX30) in the manual. PCB, Main 71014–812 A.7.2...
  • Page 305 Addendum A — Phase 1.4 and CX34 Parts List Figure A.4 ITEMS – Label and Receipt Printer (Rohm – 7.52 Dots/mm) Item numbers preceded with ’N’ are not illustrated. Item Description Part Number Printer Assembly, Label And Receipt (Rohm – 7.52 dots/mm) 70588–534 Belt, Drive, XB2 18121–303...
  • Page 306 Addendum A — Phase 1.4 and CX34 Parts List A.7.3 Receipt Printer – Axiohm 7.52 Dots/mm Figure A.5 Receipt Printer – Axiohm 7.52 Dots/mm Figure A.5 ITEMS – Receipt Printer (Axiohm – 7.52 Dots/mm) (Available Mid 1996 Onwards) Item numbers preceded with ’N’ are not illustrated. Item Description Part Number...
  • Page 307 Addendum A — Phase 1.4 and CX34 Parts List Parts list for the CX34 hanging scale Figure A.6 Main Assembly Transducer Support fixing Rear cover assembly (61225–133) Printer spine Printer cassette assembly (70588–527) Printer door (61227–110) Customer Front cover display (61225–134) Vendor display...
  • Page 308 Addendum A — Phase 1.4 and CX34 Parts List Figure A.7 Suspension Assembly Suspension hook (66116–510) Suspension yoke (65533–112) Gimbal assembly (70112–109) M5 x 20 skt. hd. cap M5 x 10 hex. screw (13811–029) hd. sems (13718–009) Connecting block (63652–408) M5 plain washer NOTE: M5 holes in the (15711–205)
  • Page 309 Addendum A — Phase 1.4 and CX34 Parts List Figure A.8 Connector Assembly Data collector keyswitch loom (70734–534) Screw lock pin kit (18136–073) Keyed switch (70627–120) Connector plate (65376–194) No.4 x 1/4” pan hd. self tap screw (23818–428) Mains rocker switch (70625–527) Not Illustrated: Keyring with fob and keys (13846–019)
  • Page 310 Addendum A — Phase 1.4 and CX34 Parts List Figure A.10 Chassis Assembly – Filter Looms Mains switch/filter loom (70734–533) Brown M5 full nut Blue (13821–105) Mains earth lead M5 plain washer (70611–440) (15711–205) Earth warning label (67835–394) Figure A.11 Chassis Assembly –SMPS PCB Assembly Rubber grommet (28135–130) Main PCB loom (70734–529)
  • Page 311 Addendum A — Phase 1.4 and CX34 Parts List Figure A.12 Chassis Assembly – SMPS PCB Cover M8 x 8 rec pan hd sems (13758–530) SMPS cover warning label (67835–389) Quick connect terminal (18136–087) SMPS cover (61226–188) Figure A.13 Chassis Assembly – Printer Spine Assembly Display protection plate Adhesive backed flat cable (66226–119)
  • Page 312 Addendum A — Phase 1.4 and CX34 Parts List Figure A.14 Chassis Assembly – Top End Transducer assembly M5 shakeproof washer Mounting boss (15713–119) (63271–706) Support bracket (66127–161) M4 x 8 rec pan hd sems (13758–530) M5 full nut (13821–105) M5 plain washer (15711–205) M5 full nut...
  • Page 313 Addendum A — Phase 1.4 and CX34 Parts List Figure A.16 Main PCB Assembly A/D convertor PCB (71014–646) Reverse locking PCB support (18136–718) Green M3 x 8 rec pan hd White Black screw (13758–522) Main PCB assembly (71014–696) Figure A.17 Looms Hinged split ferrite Mains switch/filter loom...
  • Page 314 Addendum A — Phase 1.4 and CX34 Parts List Figure A.18 Chassis Support Keyboard extension loom (70734–287) M5 plain washer Chassis support (66127–157) (15711–205) M5 x 10 hex hd screw sems (13718–009) Figure A.19 Printers Cassette label printer assembly (70588–535) – all parts as Axiohm receipt printer assembly (70588–541) detailed in Section A.7.2 except Item 70, Printer Loom, which is...
  • Page 315 Addendum A — Phase 1.4 and CX34 Parts List Figure A.20 Screen Plate A/D PCB assembly Main PCB assembly Chassis M4 x 8 rec pan hd sems (13758–530) Screen plate (66232–115) A–28 CX20/CX30/CX34 Addendum A...
  • Page 316 Addendum A — Phase 1.4 and CX34 Parts List Figure A.21 Goods Fitting Assembly Rubber tip (38488–101) Cross support (61642–102B) Suspension frame (68452–505) Not Illustrated: G oblong scoop (38435–411) Item Mild Steel Stainless Steel G pan cross (38471–566) G pan cross (38471–567) M6 x 20 rec pan hd screw (13755–147) M6 x 20 rec pan hd screw (13722–006) M6 x 20 skt hd cap screw (13811–040)
  • Page 317 Addendum A — Phase 1.4 and CX34 Parts List A–30 CX20/CX30/CX34 Addendum A...
  • Page 319 Address of local service branch: Avery Berkel Weighing The right is reserved to vary or modify any specification without prior notice. Company...
  • Page 320 Addendum B Phase 1.5/1.5.3 and New Main PCB This Addendum is for the following Service Manuals: A210, A410 and A510 Series of Retail Scales, Part Number 76101–605. CX20, CX30 and CX34 Series of Retail Scales, Part Number 76101–452. CX/Advantage Range of Retail Scales, Part Number 76101–863. 172 and 175 Retail Scales, Part Number 76101–975.
  • Page 322 Addendum B Phase 1.5/1.5.3 and New Main PCB Table of Contents: Introduction B–3 Configuration Options B–3 B.2.1 Configuration Option Tables B–3 B.2.2 Printer attached options added B–9 B.2.3 Multimedia interface B–9 B.2.4 ADF wrapper B–9 Test report B–10 Nutritional labels B–10 ADF printer B–10...
  • Page 323 Contents Addendum B B–2...

  • Page 324: Introduction

    Addendum B — Phase 1.5/1.5.3 and New Main PCB Introduction This addendum, which is meant to be read in conjunction with the Service Manuals listed on the title page, reflects the software upgrade to Phase 1.5 and gives details of the new main PCB. For further details of the Phase 1.5 changes refer to the user handbooks.
  • Page 325 Addendum B — Phase 1.5/1.5.3 and New Main PCB Digit 6 — Timeout On Numeric Data Entry Timeout operates on numeric data entry No timeout on numeric data entry Digit 7 — Timeout On PLU Selection No timeout 1.0 seconds 0.4 seconds 1.2 seconds 0.6 seconds...
  • Page 326 Addendum B — Phase 1.5/1.5.3 and New Main PCB Digit 18 — Wrapper Program Override Ph 1.5: Disabled Ph 1.5: Enabled Ph 1.5.3: Ph 1.5.3: Phase 1.5.3 only Digit 19 — Euro Label Disabled Enabled Phase 1.5.3 only Digit 20 — Barcode Scanner Disabled Enabled Addendum B...
  • Page 327 Addendum B — Phase 1.5/1.5.3 and New Main PCB Table B.2 System Configuration Digit 1 — Country Selection United Kingdom Austria Holland Switzerland France Italy Germany Denmark Canada Norway Mexico Portugal Greece South Africa Spain Australia Finland New Zealand Sweden Belgium Eastern Europe Digit 2 —...
  • Page 328 Addendum B — Phase 1.5/1.5.3 and New Main PCB Digit 12 — Host Communications Baud Rate 1200 Baud 4800 Baud 2400 Baud 9600 Baud Digit 13 — Tare Printing Options No reference to tare value on receipt Tare value shown on receipt Digit 14 —...
  • Page 329 Addendum B — Phase 1.5/1.5.3 and New Main PCB Table B.3 Country Override Configuration Digit 1 — Unit Price Format 0 to 99999 0 to 999990 0 to 999999 Digit 2 — Transaction Rounding To nearest 1 To nearest 20 To nearest 5 To nearest 25 To nearest 10...

  • Page 330: Printer Attached Options Added

    Addendum B — Phase 1.5/1.5.3 and New Main PCB B.2.2 Printer attached options added See Table B.1: Machine Configuration, Digit 12 – Printer Attached. Options 3, 4, 5 and 6 have been added to cater for the improved ‘polling‘ of the connected printers.

  • Page 331: Test Report

    Addendum B — Phase 1.5/1.5.3 and New Main PCB Test report The test report now shows both comms controllers. The comms controller ‘in charge’ is printed first. Nutritional labels When printing labels and nutritional labels together, wrapper signals are only sent with the second of these labels to be printed.

  • Page 332: Comms Pcb - Link Lk7

    Addendum B — Phase 1.5/1.5.3 and New Main PCB Comms PCB – Link LK7 The jumper fitted to link LK7 must always be set in position 2–3, as shown in Figure 22.3. If you are installing a new machine with a comms PCB fitted or are fitting a new comms PCB, the jumper may be set in position 1–2 which is incorrect.

  • Page 333: Increased Memory, Phase 1.5.3

    Addendum B — Phase 1.5/1.5.3 and New Main PCB Main PCB NOTE: The new main PCB has not been developed as part of Phase 1.5 but for improved EMC performance. The new 71014–949 main PCB is a six–layer version of the 71014–812. For servicing purposes all details are the same as for the 71014–812, therefore the only change to the service manual is the new part number in the Parts List.

  • Page 334: Setting The Rate

    Addendum B — Phase 1.5/1.5.3 and New Main PCB B.11.2 Setting the rate Select the function SET RATE in service mode. Enter the appropriate data. The euro currency symbol is number 35. The SET RATE function is reserved exclusively for the euro rate and is currency reference 5.

  • Page 335: Firmware Numbers - By Country

    Addendum B — Phase 1.5/1.5.3 and New Main PCB B.12 Firmware numbers B.12.1 Main core DESCRIPTION PHASE 1.3 PHASE 1.3.1 PHASE 1.4 PHASE 1.5 PHASE 1.5.3 General Main Core CX22/30/A210 etc 32K IC20 407B12CX22 926B12CX30 827B12CX30 ~~~~~~~~ ~~~~~~~~ IC19 407B22CX22 926B22CX30 827B22CX30 ~~~~~~~~...
  • Page 336 Addendum B — Phase 1.5/1.5.3 and New Main PCB Addendum B B–15...
  • Page 337 Addendum B — Phase 1.5/1.5.3 and New Main PCB Addendum B B–16...
  • Page 338 Addendum B — Phase 1.5/1.5.3 and New Main PCB Addendum B B–17...
  • Page 339 Addendum B — Phase 1.5/1.5.3 and New Main PCB Addendum B B–18...
  • Page 340 Addendum B — Phase 1.5/1.5.3 and New Main PCB Addendum B B–19...
  • Page 341 Addendum B — Phase 1.5/1.5.3 and New Main PCB Addendum B B–20...
  • Page 342 Addendum B — Phase 1.5/1.5.3 and New Main PCB Addendum B B–21...
  • Page 343 Addendum B — Phase 1.5/1.5.3 and New Main PCB Addendum B B–22...
  • Page 345 Address of local service branch: Avery Berkel Weighing The right is reserved to vary or modify any specification without prior notice. Company...
  • Page 346 Addendum C Devlin Column TK Keyboard This Addendum is for the following Service Manuals: A210, A410 and A510 Series of Retail Scales, Part Number 76101–605. CX20, CX30 and CX34 Series of Retail Scales, Part Number 76101–452. 76102–587 Issue 1/21.04.98...
  • Page 348 PL – Parts List, Devlin Keyboard Devlin column TK keyboard: short foot: UK: CXTK0P00000000 Description Part Number Devlin keyboard: standard: 70785–914 Extended display column (TK keyboard) 61656–153 Nylon hole plug 18137–551 Column gromet: 18136–238 HEYCO ‘shorty plug’: 432 1661: 18137–586 Column end plate: 65331–532 Column casting...
  • Page 349 PL – Parts List, Devlin Keyboard Devlin column TK keyboard: long foot: Export: CXTK0R00000000 Description Part Number Devlin keyboard: standard: 70785–914 Extended display column (TK keyboard) 61656–153 Nylon hole plug 18137–551 Column gromet: 18136–238 Column end plate: 65331–532 Column casting 61656–143 Fifth foot/Support plate: 65352–519...
  • Page 350 PL – Parts List, Devlin Keyboard Devlin column TK keyboard: Spares Description Part Number Small TK membrane 20–MEMB–DP114016 Large TK membrane 20–MEMB–DP114015 Switch (projected plunger) Devlin 10–B3F–4055 Magnetic membrane Devlin standard 20–MEMB–DP114013 Vertical double keytop KFM Devlin 10–AB–2X1–90000 Controller board assy KFM Devlin 25–KFM–104010SA2 Switch board assy (without keytops) 25–KFM–104010SA1...
  • Page 351 PL – Parts List, Devlin Keyboard C–6 Addendum C...
  • Page 353 Address of local service branch: The right is reserved to vary or modify any specification without prior notice. Company...

This manual is also suitable for:

Cx43 seriesCx30 series

Table of Contents