ISHIDA AC-4000 B Service Manual
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ISHIDA AC-4000 B Service Manual

ISHIDA AC-4000 B Service Manual

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  • Page 2 You can help improve this manual by calling attention to errors and by recommending improvements. Please convey your comments to the nearest Ishida Company regional representative. Thank you! Copyright  2002 by Ishida Co., Ltd. All Rights Reserved. No part of this manual may be reproduced in any form, by mimeograph or any other means, without...
  • Page 3 Precautions SERVICE SAFETY For correct maintenance, and to prevent accidents, please adhere to the following items dur- ing service. • Ensure that the power switch is OFF before any maintenance work and remove the power cable from the main power outlet. •...
  • Page 4 Precautions Do not disassemble the machine. Do not allow any liquids to come into con- tact with the machine. When cleaning the machine, only use a Do not drop or apply a strong shock to the scale. soft dry cloth or a cloth wetted with a neutral cleanser.
  • Page 5 Precautions Avoid the following areas when installing the machine Areas subject to excissive vibration or Areas subject to high temperatures or high ● ● unstable surfaces humidity Areas exposed to direct cold air Areas exposed to direct sunlight ● ● Areas subject to low temperatures Areas where water or other liquids are ●...

  • Page 6: Table Of Contents

    Contents Contents CHAPTER 1 OVERVIEW ....................1-1 Appearance and Name of Each Part.................. 1-1 Display ..........................1-1 Key Sheet ........................... 1-2 Printer ..........................1-2 Main Specifications ......................1-3 Exploded Drawing ......................1-4 CHAPTER 2 INSTALLATION ..................2-1 Packed Goods ........................2-1 Installation Environment .....................
  • Page 7 Contents Default Data ........................4-12 Total Mode Select ......................4-13 Forced Tare [USA specification only] ................4-13 4.10 Open Price [Prohibition of Unit Price Change] ..............4-14 4.11 PLU Select [Editing PLU File] ................... 4-15 4.12 System [Availabilty of Registration Mode Menu] .............. 4-22 4.13 Ethernet Setup [Ethernet Data Setting] ................

  • Page 8: Chapter 1 Overview

    Chapter 1 Overview OVERVIEW CHAPTER 1.1 Appearance and Name of Each Part Operator display Customer display Weigh platter Fuse Printer Power supply receptacle Key sheet Upper surface: Operation key sheet Power switch Lower surface: Program key sheet 1.2 Display AC-4000B AC-4000E AC-4000 Service Manual No.

  • Page 9: Key Sheet

    Chapter 1 Overview 1.3 Key Sheet 1.4 Printer Set lever Base label Label pressure plate Thermal head Peel shaft Label sensor Winding bobbin Peel sensor Shaft tension Aligning collar AC-4000 Service Manual No. 0181A...

  • Page 10: Main Specifications

    Chapter 1 Overview 1.5 Main Specifications Item Content Weighing capacity 15kg or 30lb Minimum graduation 2g/5g or 0.005 lb/0.01 lb Weighing accuracy 1/3000 (Dual-range) Load cell HBM made Size of main body 450(W) x 420(D) x 440(H) mm Weigh platter material and size SUS430...400(W) x 250(D) mm Printer Backing paper width...Max.

  • Page 11: Exploded Drawing

    Chapter 1 Overview 1.6 Exploded Drawing Weigh platter Platter holder Top case Display Load cell Power supply Fuse Power switch Module RS232C Power cable PK-229 (A/D board) Operation panel (Key sheet) P-950A (Main board) AC-4000 Service Manual No. 0181A...

  • Page 12: Chapter 2 Installation

    Chapter 2 Installation INSTALLATION CHAPTER 2.1 Packed Goods Open the packing case and check whether there are all the packed goods (machine and accessories) and if there are any damaged parts. Note: AC-4000 “B type” or “E type” can be identified by a description of the sticker on the case. [Packed goods] 1.

  • Page 13: Installation Environment

    Chapter 2 Installation 2.2 Installation Environment • Install the machine on the stable and horizontal place. • Install the machine in the place where the liquid such as water does not splash. • Avoid the place where direct sunshine strikes for a long time.

  • Page 14: Weigh Platter Installation

    Chapter 2 Installation 2.4 Weigh Platter Installation Insert the 4 pins of the weigh platter into the rubber feet on the platter holder. Weigh platter 2.5 Label Loading • Open the side cover of the main body. • Load the label roll as shown in “How to pass labels”. Label roll Side cover How to pass labels...

  • Page 15: Power Cable Connection

    Chapter 2 Installation 2.6 Power Cable Connection • Insert the power cable into the receptacle at the left of the main body. • Insert the power cable plug into the power outlet. The power outlet shape varies according to customers. Power outlet power cable Power receptacle...

  • Page 16: Customer's Specification Setup

    Chapter 2 Installation 2.8 Customer’s Specification Setup (Initialization, Setup, and Registration) Set up required specifications according to the following sequence. Test mode (Refer to Chapter 3 “Test Mode”)  1. Hardware test ..............P.3-2  2. RAM clear ..............P.3-7 ...

  • Page 17: Normal Mode Display

    Chapter 2 Installation 2.9 Normal Mode Display All segments blink three times when the power is turned on. Then, the initial display appears. ■ ■ ■ ■ ■ Operator display ■ ■ ■ ■ ■ Customer display When calling up “Fixed price item” or “Weighing item”. ■...

  • Page 18: Label Batch Print Mode

    Chapter 2 Installation 2.10 Label Batch Print Mode • The following display appears when printing batches of labels. • The label batch printing is a function which prints the item data and the number of labels registered in advance a for fixed price items. •...

  • Page 19: Label Batch Printing On Continuous Paper

    Chapter 2 Installation Deleting label batch print data The label batch print data is deleted while sounding an OK buzzer by pressing the ZERO key twice. Stop of label batch print operation Label batch print stops by pressing the PRINT key while printing a print reservation data. However, the remaining label batch print items are not deleted.

  • Page 20: Scroll Message Display

    Chapter 2 Installation 2.11 Scroll Message Display • A function to display the registered scroll message. When an item has not been called up, it starts after five seconds have passed. • Display method registration function (0: No display 1: High-speed scroll 2: Normal scroll 3: Low-speed scroll 4: High-speed blinking 5: Normal blinking 6: Low-speed blinking) •...

  • Page 21: Chapter 3 Test Mode

    Chapter 3 Test Mode TEST MODE CHAPTER 3.1 Test Mode Menu List ■Hardware test  a) A/D check ..............P. 3-3  b) Key check ..............P. 3-4  c) Display check ..............P. 3-4  d) RS232C check .............. P. 3-5 ...

  • Page 22: Test Mode Start

    Chapter 3 Test Mode 3.2 Test Mode Start Reset the main power or press the RESET key, then immediately press and keep pressing any key other than the RESET key for a while until a buzzer sounds, the following test mode menu screen will appear by releasing the key.
  • Page 23 Chapter 3 Test Mode ■A/D CHECK [Scale zero point/span check and adjustment] • In the [C01] display, press the ENTER key to select the A/D CHECK menu. (It will take a few seconds until the A/D board is initialized.) Zero point adjustment screen •...
  • Page 24 Chapter 3 Test Mode ■KEY CHECK [Membrane key check mode] • The input membrane key data other than the RESET key is displayed. • Press the RESET key to return to the hardware test menu screen. ■DISPLAY CHECK [Multiple tube display check mode] •...
  • Page 25 Chapter 3 Test Mode ■RS232C CHECK [Driver/receiver test] • Serial output port (RS232C) driver/receiver test menu screen • Perform a loop back test to carry out the RS232C input test. Engage the TXD and RXD short-circuited connector with D-SUB 9, press the PRINT key to output test data, and judge by verifying received test data and sent data.
  • Page 26 Chapter 3 Test Mode ■BIOS PROGRAM No. [Program no. and version display check] • Program number and version of the BIOS program are displayed. Note: The program number for the prototype is the development code “BOOT”. • Press the END key to return to the hardware test menu screen. AC-4000 Service Manual No.

  • Page 27: Ram Clear

    Chapter 3 Test Mode 3.4 RAM Clear ■RAM clear test mode selection screen Press the [ ↓ ] key to increment a menu, or enter a menu number followed by pressing the [ ↓ ] key. ➔ ■SRAM CLEAR • This menu is used when clearing SRAM. When this menu is executed, all the SRAM data is cleared (initialization).
  • Page 28 Chapter 3 Test Mode ■SETUP CLEAR [E2ROM default] • This menu is used when initializing E2ROM to a default value. When this mode is executed, the content of the E2ROM switch is initialized to default. SRAM clear is executed by pressing the ZERO key twice. •...
  • Page 29 Chapter 3 Test Mode • Press the END key to return to the hardware test menu screen. ■APPLICATION COPY [Writing application] • Write the application part of flash ROM. [1M byte] • When processing is complete, “PASS” is displayed and “OK” buzzer sounds. •...
  • Page 30 Chapter 3 Test Mode BIOS COPY is not displayed in test mode. ■ ■ ■ ■ ■ When using BIOS COPY • If the machine locks, or the test mode entry is not possible, enter [APPLY COPY] → [BIOS COPY] and a transmission end message appears in [BIOS COPY], then press the ZERO key twice.

  • Page 31: Printer Head

    Chapter 3 Test Mode 3.5 Printer Head ■Printer head test mode selection screen Press the [ ↓ ] key to increment a menu, or enter a desired menu number followed by the [ ↓ ] key. ➔ ■RESISTANCE [Setting thermal head resistance value] •...
  • Page 32 Chapter 3 Test Mode ■PRINT USAGE IN km [Label travel distance display and clear] • This menu is used to check the print total travel distance. It is memorized in 100m unit (0.1km) and displayed. • When resetting the travel distance: Enter the password “495344”, and press the SIZE key.

  • Page 33: Label Sensor Check

    Chapter 3 Test Mode 3.6 Label Sensor Check ■Label sensor check test mode selection screen Press the [ ↓ ] key to increment a menu, or enter a desired menu number followed by the [ ↓ ] key. ➔ ■LABEL SENSOR [Label sensor output value adjustment] •...

  • Page 34: Total Memory

    Chapter 3 Test Mode 3.7 Total Memory ■Total memory test mode selection screen Press the [ ↓ ] key to increment a menu, or enter a desired menu number followed by the [ ↓ ] key. ➔ ■MEMORY [Memory usage status is checked] •...

  • Page 35: Rom Switch

    Chapter 3 Test Mode 3.8 ROM Switch ■ROM switch test mode selection screen Press the [ ↓ ] key to increment a menu, or enter a desired menu number followed by the [ ↓ ] key. ➔ ■ROM SWITCH No. SELECT [E2ROM switch change and check] •...
  • Page 36 Chapter 3 Test Mode ■ROM SWITCH No. Note: “ROM SWITCH” items and default value vary depending on a country where the machine is used. • Value in ( ) indicates the default value. [0]: Weight data zero suppression (4) [1]: Price data zero suppression (3) [2]: Unit price data zero suppression (3) [3]: DC motor (41) [4]: Fixed price item quantity addition “0”: Real number “1”: Fixed price item quantity...

  • Page 37: Peel Sensor Check

    Chapter 3 Test Mode 3.9 Peel Sensor Check ■PEEL SENSOR output value test mode selection screen Press the [ ↓ ] key to increment a menu, or enter a desired menu number followed by the [ ↓ ] key. ➔ ■PEEL SENSOR [Peel sensor output value is checked.] •...

  • Page 38: Chapter 4 Setup Mode

    Chapter 4 Setup Mode SETUP MODE CHAPTER 4.1 Setup Mode Menu ■Setup menu list • Labels a) Print condition 1. Label format no. 2. Label length including pitch 3. Item name returning line width (when registering) 4. Label sensor distance 5.

  • Page 39: Starting Procedure For Each Mode

    Chapter 4 Setup Mode • Ethernet setting a) IP address b) Gateway address setup c) Subnet mask setup d) Server address setup e) Log-in name setup f) Password setup g) Mac address setup • System timer • Password setting a) Password b) Registration c) Total d) Subtraction...

  • Page 40: Label Format [Print Conditions]

    Chapter 4 Setup Mode 4.4 Label Format [Print conditions] ■ ■ ■ ■ ■ Label print condition setting menu ■ ■ ■ ■ ■ PRINT SETUP [Print condition setting mode] ■LABEL FORMAT No. [Specifying label format number] • #1 to #4" are standard formats. (# 10 to #99 can be additionally registered.) •...
  • Page 41 Chapter 4 Setup Mode ■LABEL WIDTH [Setting of item name area print width] • This reflect an automatic line returning for an item name registration. • When (0.0) is set, a line returning is carried out automatically based on the default value. ■SENSOR (L) DISTANCE [Setting a distance between label sensor and thermal head] Enter a numerical value in 0.1 mm unit.
  • Page 42 Chapter 4 Setup Mode ■FIELD TITLE PRINT [Specifying whether to print field title in advance or not] Yes/no selection 0: No 1:YES ■PEEL SENSOR [Availability setting of peel sensor] Availability selection 0: DISABLE 1: ENABLE ■TEST ITEM No. [Specifying PLU number for test print] Enter a PLU number when performing test print.
  • Page 43 Chapter 4 Setup Mode ■LABEL FORMAT EDIT [Editing label format] • How to enter label format edit mode. Enter a password “4141”, and press the SIZE key. Note: A protection is released when the above operation has been performed. • Enter a label format number, and press the PLU key to call. ➔...
  • Page 44 Chapter 4 Setup Mode X AXIS POSITION Y AXIS POSITION • Select “X axis position data” or “Y axis position data” using the [→] key. • Multiple tube display 0 0: Label format unit # (1 to 50) 0600: X axis position is adjusted in 0.1mm unit. 0400: Y axis position is adjusted in 0.1mm unit.

  • Page 45: Pos Code

    Chapter 4 Setup Mode 4.5 POS Code ■ ■ ■ ■ ■ POS setting mode menu ■NON-PLU FLAG Set one or two digits if necessary. ■PLU FLAG [Setting a flag code for source marking] Set a flag code for source marking. ■POS TYPE [Setting a bar code type] Bar code type selection 1: NON PLU 13...
  • Page 46 Chapter 4 Setup Mode ■BAR TYPE [Setting NON PLU 13 code] • Set the POS code type “NON PLU 13 code”. • Meaning of abbreviation F: Flag Manufacturer code C: Item code (CP): Check price P: Price (0): E: Weight Quantity I: PLU no.
  • Page 47 Chapter 4 Setup Mode ■ITF [Setting ITF code] • Set an ITF code type “NON PLU 18 code”. • Meaning of abbreviation F: Flag M: Manufacturer code C: Item code Q: Quantity P: Price U: Unit price W: Weight (CD): Check digit •...

  • Page 48: Barcode [Item Code]

    Chapter 4 Setup Mode 4.6 Barcode [Item code] ■ ■ ■ ■ ■ Item code setting menu ■POSITION [Setting an item code] • Set “Position” and “Number of digits” of the item code reflected in the bar code • “45” is a default value specifying the five digits from the fourth digit in 8 digit item code are taken into the bar code.

  • Page 49: Default Data

    Chapter 4 Setup Mode 4.7 Default Data ■ ■ ■ ■ ■ Default data setting menu ■POSITION [Setting an item code] Date print 1: Print prohibited 2: Packing date print 3: Expiry date print 4: Both packing date and expiry date print = defaults ■SHELF LIFE [Setting the number of days for expiry date] Specify the number of days for an expiry date.

  • Page 50: Total Mode Select

    Chapter 4 Setup Mode 4.8 Total Mode Select ■ ■ ■ ■ ■ Total setting menu ■DAILY TOTAL [Selection of total availability] Select availability of daily total when issuing labels. (Default value 1: Enable) 0: Disable 1: Enable 4.9 Forced Tare [USA specification only] ■...

  • Page 51: Open Price [Prohibition Of Unit Price Change]

    Chapter 4 Setup Mode 4.10 Open Price [Prohibition of Unit Price Change] ■ ■ ■ ■ ■ Unit price change prohibition setting menu ■OPEN PRICE [Selection of open price or unit price change prohibition] • Select a temporary unit price change or a open price in normal mode. 0: Open price (Allow) ..

  • Page 52: Plu Select [Editing Plu File]

    Chapter 4 Setup Mode 4.11 PLU Select [Editing PLU File] ■PLU file edit menu ■SALES MODE Selection 0: Disable 1: Enable ■PRICE Selection 0: Disable 1: Enable ■MD (Mark Down) FLAG Selection 0: Disable 1: Enable ■MD (Mark Down) PRICE Selection 0: Disable 1: Enable...
  • Page 53 Chapter 4 Setup Mode ■FIXED WEIGHT Selection 0: Disable 1: Enable ■PCS (Quantity) Selection 0: Disable 1: Enable ■TARE Selection 0: Disable 1: Enable ■DATE PRINT Selection 0: Disable 1: Enable ■SHELF LIFE Selection 0: Disable 1: Enable AC-4000 Service Manual No.
  • Page 54 Chapter 4 Setup Mode ■BEST BEFORE DATE FLAG Selection 0: Disable 1: Enable ■BEST BEFORE DATE Selection 0: Disable 1: Enable ■PACKING TIME FLAG Selection 0: Disable 1: Enable ■PACKING TIME DATE Selection 0: Disable 1: Enable ■EXPIRY TIME FLAG Selection 0: Disable 1: Enable...
  • Page 55 Chapter 4 Setup Mode ■EXPIRY TIME DATA Selection 0: Disable 1: Enable ■ITEM CODE Selection 0: Disable 1: Enable ■BARCODE TYPE Selection 0: Disable 1: Enable ■POS CODE TYPE Selection 0: Disable 1: Enable ■POS CODE FLAG Selection 0: Disable 1: Enable AC-4000 Service Manual No.
  • Page 56 Chapter 4 Setup Mode ■POS CODE Selection 0: Disable 1: Enable ■OPEN PRICE Selection 0: Disable 1: Enable ■EXTRA MESSAGE 1 Selection 0: Disable 1: Enable ■EXTRA MESSAGE 2 Selection 0: Disable 1: Enable ■EXTRA MESSAGE 3 Selection 0: Disable 1: Enable 4-19 AC-4000 Service Manual...
  • Page 57 Chapter 4 Setup Mode ■COUPON MESSAGE Selection 0: Disable 1: Enable ■LOGO IMAGE 1 Selection 0: Disable 1: Enable ■LOGO IMAGE 2 Selection 0: Disable 1: Enable ■LABEL FORMAT No. Selection 0: Disable 1: Enable ■UPPER LIMIT Selection 0: Disable 1: Enable AC-4000 Service Manual No.
  • Page 58 Chapter 4 Setup Mode ■LOWER LIMIT Selection 0: Disable 1: Enable ■POP No. Selection 0: Disable 1: Enable 4-21 AC-4000 Service Manual No. 0181A...

  • Page 59: System [Availabilty Of Registration Mode Menu]

    Chapter 4 Setup Mode 4.12 System [Availability of Registration Mode Menu] ■ ■ ■ ■ ■ PLU file edit menu ■PLU • A function to protect PLU data. Selection 0: Disable 1: Enable Note: P01 and P03 mode can not be used. ■COMMODITY Selection 0: Disable...
  • Page 60 Chapter 4 Setup Mode ■DATE Selection 0: Disable 1: Enable ■EXTRA MESSAGE 1 Selection 0: Disable 1: Enable ■OPEN PLU Selection 0: Disable 1: Enable ■ITEM LIST Selection 0: Disable 1: Enable ■RS232C COMMUNICATION Selection 0: Disable 1: Enable 4-23 AC-4000 Service Manual No.
  • Page 61 Chapter 4 Setup Mode ■COUPON MESSAGE Selection 0: Disable 1: Enable ■EXTRA MESSAGE 2 Selection 0: Disable 1: Enable ■EXTRA MESSAGE 3 Selection 0: Disable 1: Enable ■TCP/IP COMMUNICATION Selection 0: Disable 1: Enable ■OPERATOR Selection 0: Disable 1: Enable AC-4000 Service Manual No.
  • Page 62 Chapter 4 Setup Mode ■TITLE MESSAGE Selection 0: Disable 1: Enable ■ADVERTISEMENT MESSAGE 2 Selection 0: Disable 1: Enable 4-25 AC-4000 Service Manual No. 0181A...

  • Page 63: Ethernet Setup [Ethernet Data Setting]

    Chapter 4 Setup Mode 4.13 Ethernet Setup [Ethernet Data Setting] ■ ■ ■ ■ ■ Ethernet data setting menu Setup mode ■IP ADDRESS SETUP • Set an Internet Protocol address. • Enter an Internet Protocol address. (Enter a data devided with the period individually.) AC-4000 Service Manual No.
  • Page 64 Chapter 4 Setup Mode • Set a gateway address. • Enter a gateway address. (Enter a data divided with the period individually.) 4-27 AC-4000 Service Manual No. 0181A...
  • Page 65 Chapter 4 Setup Mode • Set a subnet mask. • Enter a subnet mask. (Enter a data divided with the period individually.) AC-4000 Service Manual No. 0181A 4-28...
  • Page 66 Chapter 4 Setup Mode • Set a server address. • Enter a server address. (Enter a data divided with the period individually.) 4-29 AC-4000 Service Manual No. 0181A...
  • Page 67 Chapter 4 Setup Mode • Set a log-in name. • Enter a log-in name. (Enter a log-in name using numeric or character keys. (Entered characters must be small letters)) • Set a password. • Enter a password. (Enter a password using numeric or character keys. (Entered characters must be small letters)) AC-4000 Service Manual No.
  • Page 68 Chapter 4 Setup Mode • Checking MAC address • As the MAC address is unique to the CPU board, modified use is strictly prohibited. When the board is exchanged, Use the MAC address memorized in a new board. If the stored data is cleared due to any trouble of the board, it is possible to set an address. In this case, release a protection by entering a password.

  • Page 69: System Timer

    Chapter 4 Setup Mode 4.14 System Timer ■ ■ ■ ■ ■ System timer setting menu ■SYSTEM TIMER • Set the system timer. • A function to maintain called data only for a specified time period when there no scale operation is performed in normal mode.

  • Page 70: Password Setup

    Chapter 4 Setup Mode 4.15 Password Setup ■ ■ ■ ■ ■ Password setting menu ■PASSWORD • Enter the set password when it is set in B12-01 menu. It is not possible to enter B12-03, B12-04, or B12-05 menu unless the password is not input. •...
  • Page 71 Chapter 4 Setup Mode ■TOTAL Input a password (4 digits) for Total Mode. ■SUBTRACTION Input a password (4 digits) for Subtraction Mode. ■SETUP Input a password (4 digits) for Setup Mode. ■TARE PASSWORD Input a tare password (4 digits). AC-4000 Service Manual No.

  • Page 72: Chapter 5 Electricity Composition

    Chapter 5 Electricity Composition ELECTRICITY COMPOSITION CHAPTER ■Block wiring diagram “P-950A” AC-4000 Service Manual No. 0181A...
  • Page 73 Chapter 5 Electricity Composition ■Main Board [P-950A] PK-229 P-950A AC-4000 Service Manual No. 0181A...
  • Page 74 Chapter 5 Electricity Composition ■AC-4000 (B/E) Main Unit (PK-950A) Connector Signal Name XJ2: 9P D-SUB (Receptacle Plug), RS232C Signal Name Signal Name XJ6: B6P-VH, DC Power Supply Signal Name Signal Name XJ7: B11B-XH -A, A/D Board Signal Name Signal Name DF XIN DRDY SDATA...
  • Page 75 Chapter 5 Electricity Composition XJ18: B4B-XH -A, Step-motor Signal Name Signal Name XJ22: HIF3FC-30PA-2.5DSA Signal Name Signal Name NO CONNECT VH (+24V) NO CONNECT DATA OUT VH (+24V) VH (+24V) RIO0 RIO1 VH (+24V) RIO2 NO CONNECT VH (+24V) ENABLE 1 NO CONNECT VCC (+5V) NO CONNECT...
  • Page 76 Chapter 5 Electricity Composition XJ29: B4P-SHF -1AA, Peel Sensor Signal Name Signal Name NO CONNECT OUTPUT XJ30: B5P-SHF -1AA, Label Sensor Signal Name Signal Name OUTPUT VCC (+5V, 23mA) NO CONNECT XJ31 :B2B-PH -K-S, Drawer I/F Signal Name Signal Name SIGNAL OUT (+24V) XJ33: B3P-SHF -1AA, DC Motor Signal Name...
  • Page 77 Chapter 5 Electricity Composition ■PK229 (A/D board) Connector (XJ2) • The PK229 (A/D board) is fixed by the two spacers on the P-950 (Main board), and Five leads of the Load Cell cable PK-229 are soldered to the PK229 (A/D board). Note: The load cell output cable and the A/D board (PK- Load cell 229) are soldered.
  • Page 78 Chapter 5 Electricity Composition ■Power Unit (LSF100 - 24S) External view Block diagram AC-4000 Service Manual No. 0181A...
  • Page 79 Chapter 5 Electricity Composition ■PK-232 (TCP/IP) Connecting LAN cable When connecting the LAN cable, securely insert the connec- tor into the LAN port until it clicks. Cable connection method • Use a crossing cable for connecting the PC and the AC- 4000.
  • Page 80 Chapter 5 Electricity Composition ■PK-236 (SPAN SWITCH) Changed data is cleared when completing this mode unless it is memorized in “E2ROM” by pushing the “Memory Button”. Note: An authorization test may be required if “A/D DATA” is changed according to the measurement regulations where the machine is used.
  • Page 81 Chapter 5 Electricity Composition ■P-862 (KEYBOARD) • The P-862 (Keyboard) is mounted in the operation panel located in front of the main body. • Two harnesses are connected from the key sheet to the P-862 (Keyboard). Harness 1 Harness 2 P-862A Keyboard AC-4000 Service Manual...

  • Page 82: Chapter 6 Troubleshooting

    Chapter 6 Troubleshooting TROUBLESHOOTING CHAPTER 6.1 Error List ■Error no. Error 3: When POP MESSAGE exceeds the limit number of characters. Note: Pressing the CLR key returns to normal mode. Error 4: When EXTRA MESSAGE exceeds the limit number of characters. Note: Pressing the CLR key returns to normal mode.
  • Page 83 Chapter 6 Troubleshooting Error 9: When a label size is not suitable. Note: Pressing the CLR key returns to normal mode. Error 10: When an error occurs in a discount calculation. Note: Pressing the CLR key returns to normal mode. Error 11: When EXTRA MESSAGE 2 exceeds the limit number of characters.
  • Page 84 Chapter 6 Troubleshooting Error 16: When actual memory overflows. Note: Pressing the CLR key returns to normal mode. Error 21: Thermal head fault error. Note: Pressing the CLR key returns to normal mode. Error 40: When an error occurs in internal memory. Note: Pressing the CLR key returns to normal mode.
  • Page 85 Chapter 6 Troubleshooting ■Symptom, cause, and measures Cause Measures Symptom 1. Power plug has come off. 1. Insert the power plug. Power is not applied. 2. Fuse burns. 2. Replace with a new fuse. 3. Defect of main board (PK-950) 3.

  • Page 86: Chapter 7 Parts Replacement

    Chapter 7 Parts Replacement PARTS REPLACEMENT CHAPTER 7.1 Detaching Each Part (Unit) Weigh platter ■Detach the weigh platter Remove the power plug from the main power outlet. Power plug Lift the weigh platter horizontally. Note: The weigh platter is fixed by the 4 pins under the platter inserted in a center of each rubber on the platter holder.
  • Page 87 Chapter 7 Parts Replacement ■Detaching the front cover (key sheet) Seal screw Cut the seal wire. Remove the 2 seal screws. Seal wire Remove the 2 screws (M4 x 12) of the operation panel (front cover). Remove the harness connected with P-950A Front cover from P-862A on the back of the front cover (Key sheet)
  • Page 88 Chapter 7 Parts Replacement ■Detaching the top case Cut the seal wire. Remove the seal screw. Remove the 4 screws (M4 x 12) located on the top case. Note 1: The top case seal wire is used only for a country where the top case seal is required.

  • Page 89: Detaching Internal Parts

    Chapter 7 Parts Replacement 7.2 Detaching Internal Parts This work must be carried out after finishing preceding section 7.1. ■Detaching the keyboard relay board (P-862A) M4 screw Pull out the harness of the front key sheet from Key sheet harness the connector on the P-862A.
  • Page 90 Chapter 7 Parts Replacement ■Detaching the power supply Pull out the “CN1" and “CN2" connectors. Remove the 2 screws (M4 x 12) on the bottom. Power supply Base Screw (M4 x 12) ■Detaching the span switch (PK-236) Memory button Pull out the connector of the PK-236. Remove the 2 screws (M4 x 8).
  • Page 91 Chapter 7 Parts Replacement ■Detaching the load cell Remove the leads soldered to the PK-229. Screw (M5 x 15) Remove the 3 screws (M5 x 5) fixing the load Load cell cell. Base Note 1: Ensure not to mistake wirings when installing the load cell output cable.
  • Page 92 Chapter 7 Parts Replacement ■Detaching the PK-229 (A/D board) PK-229 (XJ2) Pull out the PK-229 from card spacers. Solder Pull out the PK-229 (XJ2) and the P-950A (XJ7) connectors. Load sell Remove soldering of the load cell output cable. Note 1: Perform span adjustment after the PK-229 is exchanged.
  • Page 93 Chapter 7 Parts Replacement ■Detaching the PK-950A (Main board) Pull out all the harnesses connected with the Screw (M4 x 6) main board. Remove the two screws (M4 x 6). P-950A (Main board) Remove the board from the 3 card spacers. Spacer Note 1: Ensure to tighten the 2 screws (M4 x 6) when assembled for establishing a ground.
  • Page 94 Chapter 7 Parts Replacement ■Detaching the stepping motor and the DC motor Stepping motor A motor to feed a label to the label length. Pull out the connector of the motor. Remove the two screws (M3 x 6). Screw (M4 x 8) DC motor Stepping motor Screw (M3 x 6)
  • Page 95 Chapter 7 Parts Replacement Printer parts composition Set lever Base label Label pressure plate Thermal head Peel shaft Label sensor Winding bobbin Peel sensor Shaft tension Guide collar ■Detaching the label sensor Pull out the connector of the P-950A (XJ18). Remove the 2 screws (M4 x 8).
  • Page 96 Chapter 7 Parts Replacement ■Detaching the peel sensor Pull out the connector of the P-950A (XJ29). Remove the 2 screws (M3 x 18). Note 1: Refer to “7.10 of Chapter 7” for installation place. 2: Refer to “3.17 of Chapter 3” for the adjustment method.
  • Page 97 Chapter 7 Parts Replacement Thermal head specifications Model LH3124I (Double-density thermal head) made by TDK Total dot number 448 dots Dot pitch 0.135mm Head resistance R=528 to 672 (automatic setting) Power consumption 0.66W/dot Applied voltage Adjusting thermal head print conditions •...
  • Page 98 Chapter 7 Parts Replacement ■Detaching the display Pull out the 4 push rivets. Pull to separate the operator and the customer displays apart. Pull out the connector. Multi tube display Dot matrix display Push rivet Fuse Customer display Push rivet Operator display Note: Refer to “7.1 of Chapter 7”...

  • Page 99: Periodical Replacement Parts

    Chapter 7 Parts Replacement 7.3 Periodical Replacement Parts ■Thermal head (LH3124I) Replacement period: Label travel distance 40 to 60km (standard) Note: The label travel distance varies depending on the label material or thermal head cleaning conditions. ■Display tube (Display board) Life: Brightness must be 80% or more of the standard lower bound after lighting for 1,000 hours under the condition of all segments lighting by the standard ratings drive.
  • Page 100 44 SANNO-CHO SHOGOIN SAKYO-KU KYOTO, 606 JAPAN PHONE: (075) 771-4141 FACSIMILE: (075) 751-1634 TELEX: 05422065 SCALES J CABLE ADD: “SCALES”KYOTO...

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