Brother FAX-170 Service Manual

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Table of Contents
FACSIMILE EQUIPMENT
SERVICE MANUAL
MODEL: FAX-170/190/510/
HOME FAX
FAX-270MC/290MC/
520DT/520MC
MFC370MC/390MC

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  Summary of Contents for Brother FAX-170

  • Page 1 FACSIMILE EQUIPMENT SERVICE MANUAL MODEL: FAX-170/190/510/ HOME FAX FAX-270MC/290MC/ 520DT/520MC MFC370MC/390MC...
  • Page 2 © Copyright Brother 1998 All rights reserved. No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher. Specifications are subject to change without notice.
  • Page 3 PREFACE This publication is a Service Manual covering the specifications, construction, theory of opera- tion, and maintenance of the Brother facsimile equipment. It includes information required for field troubleshooting and repair—disassembly, reassembly, and adjustment—so that service personnel will be able to understand equipment function, to rapidly repair the equipment and order any necessary spare parts.
  • Page 4 CHAPTER I. GENERAL DESCRIPTION...
  • Page 5 CONTENTS EQUIPMENT OUTLINE ................. 1.1 External Appearance and Weight ............1.2 Components .................... I-1 SPECIFICATIONS ..................I-2...
  • Page 6: Components

    1. EQUIPMENT OUTLINE External Appearance and Weight The figure below shows the equipment appearance and approximate dimensions. 135.0 (H) 240.0 (D) 298.5 (W) (Unit: mm) Weight: Machine proper Approx. 2.8 kg (excluding a paper roll) In package Approx. 4.6 kg Components The equipment consists of the following major components: Control panel ASSY...
  • Page 7: Specifications

    2. SPECIFICATIONS Model FAX-170 FAX-190 Color Bluish-black (1395) Bluish-white (1397) Modem Speed 9600 bps 9600 bps Coding Method Transmission Speed 15 sec. 15 sec. CCITT Group Input/Output Width Max. 8.5" x 8.5" Max. 8.5" x 8.5" Handset Automatic Cutter ADF Capacity (pages)
  • Page 8 Model FAX-510 HOME FAX Color Bluish-black (1395), Bluish-white (1397)* Bluish-white (1397) Modem Speed 9600 bps 9600 bps Coding Method Transmission Speed 15 sec. 15 sec. CCITT Group Input/Output Width Max. 8.5" x 8.5" Max. 8.5" x 8.5" Handset Automatic Cutter ADF Capacity (pages) Anti-curl System Roll Paper Size (Standard thermal/Therma PLUS)
  • Page 9 Model FAX-270MC/290MC MFC370MC MFC390MC Color Black (1395) White (1138) White (1138) Modem Speed 14400 bps Coding Method Transmission Speed 9 sec. CCITT Group Input/Output Width Max. 216/216 mm Hold Key Automatic Cutter ADF Capacity 10 pages Anti-curl System Roll Paper Size (Standard thermal/Therma PLUS) 98' (1"...
  • Page 10 Model FAX-520DT/520MC Color Black (1395)/White (1397)* Modem Speed 14400 bps Coding Method Transmission Speed 9 sec. CCITT Group Input/Output Width Max. 216/216 Hold Key Automatic Cutter ADF Capacity 10 pages Anti-curl System Roll Paper Size (Standard thermal/Therma PLUS) 30 m (1" Core) LCD Size 16 x 1 On-screen Programming...
  • Page 11 CHAPTER II. INSTALLATION...
  • Page 12 CHAPTER III. THEORY OF OPERATION...
  • Page 13: Table Of Contents

    CONTENTS OVERVIEW ..................... III-1 MECHANISMS ....................III-2 2.1 Transmitting Mechanism (Feeding and scanning documents) ....III-2 2.1.1 Automatic document feeder (ADF) ..........III-2 2.1.2 Scanner ................... III-3 2.2 Receiving Mechanism (Feeding recording paper and printing data) ..III-4 2.2.1 Anti-curl system (ACS) ..............III-4 2.2.2 Automatic cutter ................
  • Page 14: Overview

    1. OVERVIEW Control panel Automatic cutter Scanner Recorder (CIS unit) Controller Drive unit (Motor and solenoid) Line Power supply Telephone Speaker III – 1...
  • Page 15: Mechanisms

    2. MECHANISMS The equipment is classified into the following mechanisms: Transmitting Mechanism Feeding and scanning documents Receiving Mechanism Feeding recording paper and printing data Power Transmission Mechanism Switching the power transmission route Sensors and Actuators Transmitting Mechanism (Feeding and scanning documents) The transmitting mechanism consists of the document stacker, automatic document feeder (ADF), document feeding related rollers, scanner, and document sensors.
  • Page 16: Scanner

    2.1.2 Scanner The scanner uses a contact image sensor (CIS) unit which consists of an LED array illumi- nating documents, a self-focus lens array collecting the reflected light, a CIS PCB carrying out photoelectric conversion to output picture element data, and a cover glass on which a document advances.
  • Page 17: Receiving Mechanism (Feeding Recording Paper And Printing Data)

    Receiving Mechanism (Feeding recording paper and printing data) The receiving mechanism consists of the recording paper roll holder, anti-curl system (ACS) plate, platen, thermal recording head, automatic cutter, and sensors. (For details about the sensors, refer to Section 2.4.) The recording paper is routed on the ACS plate to the recording head which prints onto the heat-sensitive recording paper pressed by the platen according to received image signals.
  • Page 18: Power Transmission Mechanism

    Power Transmission Mechanism The equipment has a single drive motor whose power transmission route can be switched by the planetary gear train and the solenoid. This switching allows the equipment to function in four operation modes (recording, scanning, copying, and cutter driving modes). 2.3.1 Structure of the gear train The gear train consists of two groups of gears: one group on the drive unit and the other on...
  • Page 19 Shown below is a gear train constructed by combining the drive unit and scanner frame ASSY. The motor rotation is transmitted via the planet gear 20B (C1) to the gear 16 (D) and via the gear 16/24 (K) to the separation roller gear (L). K (Gear 16/24) L (Separation roller gear) O (White pressure roller gear)
  • Page 20: Description Of Planetary Gear System

    2.3.2 Description of planetary gear system The planetary gear train consists of the sun gear 18/82, two planet gears 20, arm A, and arm B, as shown below. Stopper of arm A Motor gear Sun gear 18/82 Planet gear 20A Planet gear 20B Arm A Arm B...
  • Page 21: Power Transmission For Four Operation Modes

    2.3.3 Power transmission for four operation modes Depending upon the solenoid ON/OFF state and the motor rotation direction, the planetary gear train switches the power transmission route for the four operation modes. Solenoid ON/OFF state Motor rotation direction Solenoid: OFF Spring Clutch arm Forward...
  • Page 22: 1 ] Recording Mode (Solenoid: Off, Motor Rotation: Forward)

    [ 1 ] Recording mode (Solenoid: OFF, Motor rotation: Forward) In the recording mode, the control electronics deactivates the solenoid. When the motor ro- tates in the forward direction, the clutch arm turns clockwise with the spring and its cutout X becomes engaged with the stopper of arm A.
  • Page 23: 2 ] Scanning Mode (Solenoid: Off, Motor Rotation: Reverse)

    [ 2 ] Scanning mode (Solenoid: OFF, Motor rotation: Reverse) Just as in the recording mode, the control electronics deactivates the solenoid in the scan- ning mode to lock arm A. The motor rotates in the reverse direction and the sun gear 18/82 (B) rotates clockwise so that the planet gear 20B (C1) transmits the rotation to the separation roller gear (L) and white pressure roller gear (O) via the several gears.
  • Page 24: 3 ] Copying Mode (Solenoid: On Off, Motor Rotation: Forward)

    [ 3 ] Copying mode (Solenoid: ON OFF, Motor rotation: Forward) The control electronics at first activates the solenoid to release the stopper of arm A from the cutout X of the clutch arm while rotating the motor in the forward direction. Accordingly, the sun gear 18/82 (B) rotates counterclockwise so that both the planet gears 20B (C1) and 20A (C2) transmit the rotation;...
  • Page 25: 4 ] Cutter Driving Mode (Solenoid: On, Motor Rotation: Reverse)

    [ 4 ] Cutter driving mode (Solenoid: ON, Motor rotation: Reverse) The control electronics activates the solenoid to release the stopper of arm A from the clutch arm. When the motor rotates in the reverse direction, the sun gear 18/82 (B) rotates clock- wise so that the planet gear 20A (C2) transmits the rotation to the cutter gear (Q) via gear P.
  • Page 26 The cutter gear (Q) is a two-stepped gear whose inside gear is a one-tooth sector gear. While the cutter gear (Q) rotates by one turn for one stroke of the upper blade of the cutter, the one-tooth sector gear slightly turns the platen gear (H) clockwise via the reverse gear (I) to feed the recording paper back into the equipment.
  • Page 27: Power Transmission Route

    2.3.4 Power transmission route Rotation of the motor gear is transmitted as shown below. Motor gear Sun gear 18/82 C1: Planet gear 20B C2: Planet gear 20A Gear 16 Gear 14/20 Gear 18 Gear 18L Platen gear Reverse gear Gear 20 Gear 16/24 Separation roller gear Gear 23...
  • Page 28: Sensors And Actuators

    Sensors and Actuators This equipment has two photosensors and four mechanical switches as described below. Sensor name Type Located on Document front sensor Photosensor (PH1) Main PCB Document rear sensor Photosensor (PH2) Main PCB Paper empty (PE) sensor Mechanical switch (SW1) Main PCB Cover sensor Mechanical switch (SW2)
  • Page 29 (Rear) Cover sensor actuator (Panel lock arm) Cover sensor Hook switch sensor actuator* PE sensor actuator Hook switch sensor* PE sensor Document front sensor actuator Cutter HP sensor actuator (Cutter flange) Document front sensor Cutter HP sensor Document rear sensor actuator Document rear sensor (*In those versions equipped with a Binatone handset, the hook switch sensor serves no...
  • Page 30: Control Electronics

    3. CONTROL ELECTRONICS Configuration The hardware configuration of the facsimile equipment is shown below. Line External telephone 2-pin 2-pin Handset 4-pin NCU PCB (Note) Speaker 12-pin: U.S.A. versions 18-pin: European versions (Note) Control 2-pin panel PCB 5-pin P4 6-pin Motor Main PCB P3 2-pin engine...
  • Page 31: Main Pcb

    Main PCB The main PCB, which is the nucleus controlling the entire operation of the equipment, con- sists of a FAX engine (ASIC), memories, MODEM, motor drive circuitry, sensor detection cir- cuitry, and analog circuits for scanning, recording, and power transmission shifting. Control panel PROM Recording head...
  • Page 32 FAX-170/190/510/HOME FAX Main PCB Circuit Diagram 1/4 SW3, hook switch sensor (microswitch) (This sensor serves no function in those ver- sions equipped with a Binatone handset.) SW2, cover switch sensor (microswitch) SW1, paper empty sensor (microswitch) Reset IC which turns on at the powering-on sequence and at any of the reset opera- tions.
  • Page 33 Main PCB Circuit Diagram 2/4 PROM (16k x 1 bit in the European versions, 8k x 1 bit in other versions) ROM (128k x 8 bits. Note that the qualification machines for demonstration have a 2- megabit ROM.) PSRAM (32k x 8 bits) Not mounted.
  • Page 34 Main PCB Circuit Diagram 3/4 Connector for the CIS 1-1: Power for the CIS LED array 1-2: Clock output 1-3: Trigger signal output. One shot of this signal triggers a line of scan. 1-4: LED control signal output circuit which controls the intensity of the CIS LED ar- ray.
  • Page 35 Transistor array which consists of seven transistors 5-1: Transistors that control the rotation direction of the motor according to the MM4 through MM1 signals. 5-2: Transistor that turns on and off the solenoid. The combination of the solenoid state and the motor rotation direction deter- mines to which the motor torque should be transmitted, the cutter, the document feeding mechanism, or the paper feeding mechanism.
  • Page 36 Main PCB Circuit Diagram 4/4 Connector for the power supply PCB 1-1: CR1, recording head on/off relay 3-terminal regulator which eliminates unstabilized components of the +8V source to generate stabilized 5V source. Connector for the NCU 3-1: Power for the NCU 3-2: Signals from the telephone Analog signal selectors 4-1: Selects either input signals from the handset or those from the MODEM.
  • Page 37 FAX-270MC/290MC/520DT/520MC/MFC370MC/390MC + 5 V R 5 1 1 0 0 R H 5 V A 4 3 C 3 5 R 5 3 4 . 7 K R V D D T 7 D 6 0 1 0 1 1 . 5 K C 4 0 P A N E L R 9 7...
  • Page 38 D A 9 # 1 3 P D 2 7 C 2 0 0 1 A D A 8 R M R D A 1 7 - 0 E 1 6 B D A 7 R O M C A 1 6 1 6 B - C E R 1 0 9...
  • Page 39 + R 5 C I S R 0 V G N D B 7 B P H + 2 6 V R 0 V Not mounted. R 1 3 0 8 2 0 R 1 2 6 7 5 0 1 / 2 W 1 3 E + R 5...
  • Page 40 Transistor array which consists of seven transistors 5-1: Transistors that control the rotation direction of the motor according to the MM4 through MM1 signals. 5-2: Transistor that turns on and off the solenoid. The combination of the solenoid state and the motor rotation direction deter- mines to which the motor torque should be transmitted, the cutter, the document feeding mechanism, or the paper feeding mechanism.
  • Page 41 * R 4 1 1 S S 1 2 0 P 1 0 + 9 V * D 4 + 2 6 V B 5 B P H 7 8 0 5 * C 1 0 P O W E R C R 1 * R 3 6 O J E S H 1 2 4 D M...
  • Page 42 Speaker amplifier circuit which amplifies sounds issued from the above analog signal selector 4-3 and feeds them to the speaker. Connector for the speaker Speaker volume control circuit b-1: VOL1 b-2: VOL2 b-3: VOL3 Speaker volume High Medium (ON: Closed OFF: Opened) III –...
  • Page 43 Not mounted. * R 1 3 8 C T S E L 1 6 C X C O M C T R L * R 8 9 X C H 0 4 2 C * R 8 4 * R 8 8 X C H 1 T R L 4 .
  • Page 44: Ncu Pcb

    NCU PCB The NCU PCB switches the communications line to telephone or built-in MODEM, under the control of the main PCB. FAX-170/190/510/HOME FAX NCU PCB Circuit Diagram (U.S.A. versions) Surge absorber Line relay (CML relay) Line transformer Circuit related to the line transformer...
  • Page 45 FAX-270MC/290MC/520DT/520MC/MFC370MC/390MC + 2 6 V C R 1 M Z F - 2 4 H G C M L O U A Z - S S - 1 2 4 D R A 3 5 1 X 2 N C U S L S 0 V S B T 0 2 6 0 X 2 R L 1...
  • Page 46 NCU PCB Circuit Diagram (European versions) Surge absorber Noise filters Line relay (CML relay) Line transformer Circuit related to the line transformer High-impedance transformer circuit Calling signal detector Loop current detector Dial pulse generator & DC current loop circuit Telephone circuit (Not included in the circuit diagram for power failure phone) Reference voltage generation circuit for the operational amplifier in 5.
  • Page 47: Control Panel Pcb

    Control Panel PCB The control panel PCB and the main PCB communicate with each other by serially transmit- ting commands and data. The control panel unit consists of a gate array and LCD, which are controlled by the gate array according to commands issued from the FAX engine on the main PCB. The calendar clock is backed up by the backup circuit on the main PCB.
  • Page 48: Power Supply Pcb

    Power Supply PCB The power supply uses the switching regulation system to generate DC power (+26.6V and +8V) from a commercial AC power supply. The +26.6V source is stabilized and fed to the motor and solenoid for feeding documents and recording paper or activating the automatic cutter, and also fed to the CIS LED array. It is also fed to the main PCB where the H26.6V source is generated.
  • Page 49 CHAPTER IV. DISASSEMBLY/REASSEMBLY AND LUBRICATION...
  • Page 50 CONTENTS DISASSEMBLY/REASSEMBLY ..............IV-1 Safety Precautions ..................IV-1 Preparation ....................IV-3 How to Access the Object Component ............IV-3 Disassembly Order Flow ................IV-4 ACS Plate ....................IV-5 ROM Cover and Battery ASSY ............. IV-6 Inner Cover .................... IV-8 Control Panel ASSY ................IV-9 Recording Paper Cover, Panel Rear Cover, Control Panel and Microphone ..................
  • Page 51: Disassembly/Reassembly

    1. DISASSEMBLY/REASSEMBLY Safety Precautions To prevent the creation of secondary problems by mishandling, observe the following pre- cautions during maintenance work. (1) Always turn off the power before replacing parts or units. When having access to the power supply, be sure to unplug the power cord from the power outlet. (2) Be careful not to lose screws, washers, or other parts removed for parts replacement.
  • Page 52 Tightening Torque List Location Screw type Q'ty Tightening torque (kgf•cm) 5 ±2 Recording paper cover Taptite, cup B M3x8 5 ±2 Panel rear cover Taptite, cup B M3x8 5 ±2 Scanner frame ASSY Taptite, cup B M3x8 7 ±2 Drive unit Taptite, cup S M3x6 7 ±2 Taptite, cup S M3x8...
  • Page 53: Preparation

    Preparation Prior to proceeding to the disassembly procedure, (1) Unplug - the modular jack of the telephone line, - the modular jack of the curled cord (and remove the handset), - the BT modular jack adapter if mounted, and - the modular jack of an external telephone set if mounted. (Not shown below.) (2) Remove - the document support.
  • Page 54: Disassembly Order Flow

    Disassembly Order Flow ACS plate ROM cover Inner cover Bottom plate and battery ASSY* Control panel ASSY * Provided on the FAX-270MC/ 290MC/520DT/520MC/ Panel lock arm MFC370MC/390MC. Recording paper cover Panel rear cover - ADF parts Control panel - Control panel PCB - FPC key - LCD - Microphone*...
  • Page 55: Acs Plate

    ACS Plate (1) Open the control panel ASSY. (2) Push down the locking pawl of the main frame with the tip of a flat screwdriver and move the ACS plate to the left. Control panel ASSY ACS plate "X" "Y" Main frame Flat screwdriver Locking pawl...
  • Page 56: Rom Cover And Battery Assy

    ROM Cover and Battery ASSY* (*FAX-270MC/290MC/520DT/520MC/MFC370MC/390MC) (1) Insert the tip of the spring hook at the center or left half of the locking arm as shown below, then lift up the hook to release and move the ROM cover to the right. For the FAX-270MC/290MC/520DT/520MC/MFC370MC/390MC: Slightly lift up the ROM cover and disconnect the battery harness from the main PCB, then take out the ROM cover together with the battery ASSY.
  • Page 57 (4) For the FAX-270MC/290MC/520DT/520MC/MFC370MC/390MC: To take out the main PCB or the power supply PCB in Section 1.18, unhook the battery harness core and cutter HP sensor harness core from bosses “C” and “D,” respectively, at this stage. Boss “C” Cutter HP sensor (Unhook the power supply harness...
  • Page 58: Inner Cover

    Inner Cover (1) Swing the recording head release lever (blue lever) up to the head release position. (2) While lifting up the inner cover slightly, release the four latches with the tip of a flat screwdriver in the order (1 to 4) shown below. Pawls "P"...
  • Page 59 Control Panel ASSY (1) Disconnect the main-panel harness and the main-mike harness* from the main PCB, and then take out those harnesses from the groove of the main frame. (2) Slightly bring the control panel ASSY back up towards you so that you can release the panel lock arm from the boss of the main frame.
  • Page 60: Control Panel Assy

    Push the control panel ASSY back and remove it. Control panel ASSY Panel lock arm Main-mike harness* Main-panel harness * The main-mike harness is provided on the FAX-270MC/290MC/520DT/520MC/ MFC370MC/390MC. Reassembling Notes • Make sure that the main-panel harness and main-mike harness* are routed through the groove provided on the recording paper cover and are kept in place with the panel lock arm, as illustrated on page IV-13.
  • Page 61: Recording Paper Cover, Panel Rear Cover, Control Panel And Microphone

    Recording Paper Cover, Panel Rear Cover, Control Panel and Microphone* (1) Place the control panel ASSY upside down. (2) Turn the panel lock arm until the cutout provided in it becomes aligned with the boss of the arm support, then pull it out to the left. (3) Remove the two screws “a”...
  • Page 62 (8) For the FAX-270MC/290MC/520DT/520MC/MFC370MC/390MC: Take out the microphone* and its harness* from the control panel. Bosses Control panel Latches Main-mike harness* * Provided on the FAX-270MC/290MC/520DT/520MC/ MFC370MC/390MC. (9) To take out the LCD, remove the control panel PCB and the FPC key in step (6). As shown below, insert the tip of a flat screwdriver under clamp “D”...
  • Page 63 • When setting the recording paper cover on the control panel, first insert the right and left front corners under sections “X” of the control panel and put the cover into place. Make sure that the main-panel harness and main-mike harness* are routed as shown below. Control panel “X”...
  • Page 64: Scanner Frame Assy

    (4) Lift up the scanner frame ASSY from the rear and take it out from the main frame. NOTE: Do not hold the lower paper chute but the upper paper chute. The lower pa- per chute is easily deformed. FAX-170/190/510/HOME FAX Wrong handling Upper paper chute (Hold here.)
  • Page 65 FAX-270MC/290MC/520DT/520MC/MFC370MC/390MC Wrong handling Upper paper chute (Hold here.) Scanner frame ASSY Lower paper chute (Do not hold here.) "A" Main frame "A" "B" (NCU connector) "B" ACS grounding spring Cutter HP sensor harness (2-pin) Recording head harness (12-pin) CIS harness (7-pin) Main PCB Solenoid harness (2-pin) Motor harness (6-pin)
  • Page 66 (5) Lift up the ACS grounding spring. Reassembling Notes • Before putting the scanner frame ASSY back onto the main frame, be sure to set the ACS grounding spring as illustrated on the previous page. • Make sure that tabs “A” of the scanner frame ASSY are fitted in cutouts “B” provided in the main frame.
  • Page 67: White Pressure Roller And Cis Unit

    White Pressure Roller and CIS Unit (1) Turn the bushing of the white pressure roller clockwise approx. 90˚ and pull it out to the right. (2) Lift up the left end of the white pressure roller and push it to the right. Bushing White pressure roller (Front)
  • Page 68: Drive Unit (Main Motor And Cutter Hp Sensor

    Drive Unit (Main Motor and Cutter HP Sensor) (1) Turn the scanner frame ASSY upside down. (2) Remove the adhesive tape to release the CIS harness, motor harness, solenoid har- ness, and cutter HP sensor harness. (Left) Scanner frame ASSY (placed upside down) Adhesive tape...
  • Page 69 (6) After releasing the boss of the cutter flange from the upper blade, turn the upper blade clockwise as shown below and take the drive unit off from the scanner frame ASSY. Drive unit Boss of cutter flange Upper blade (7) To take out the motor, remove the screw, lightly press the locking arm and turn the mo- tor counterclockwise.
  • Page 70 (8) To take out the cutter HP sensor, remove the screw. Drive unit Cutter HP sensor Reassembling Notes • When installing the motor bracket, fit the two holes "a" over the positioning bosses pro- vided on the drive unit. • Make sure that the locking arm clamps the motor. •...
  • Page 71: Separation Roller Assy

    Separation Roller ASSY (1) Push down the latch with the tip of a flat screwdriver and move the separation roller ASSY to the left. Then remove the roller to the right and pull out the roller shaft to the left. Separation roller ASSY Scanner frame ASSY Latch...
  • Page 72: Document Front And Rear Sensor Actuators

    1.10 Document Front and Rear Sensor Actuators (1) Turn the document front sensor actuator as shown below and move it to the left (viewed from the rear). Scanner frame ASSY Document front sensor actuator (Rear) (2) Turn the document rear sensor actuator as shown below and move it to the right (viewed from the front).
  • Page 73: Recording Head Release Lever

    1.11 Recording Head Release Lever (1) Place the scanner frame ASSY upside down. (2) Swing the recording head release lever as shown below. (3) Release the latch and remove the recording head release lever. (Front) Latch Recording head release lever Latch (Blue lever) Scanner frame ASSY...
  • Page 74: Recorder & Cutter Assy

    1.12 Recorder & Cutter ASSY (1) Place the scanner frame ASSY upside down. (2) Remove the screw. (3) Press the warped sections of the scanner frame ASSY outwards at both sides with the tip of a flat screwdriver and take out the recorder & cutter ASSY. Warped section Flat screwdriver...
  • Page 75: Cutter Chute And Platen

    1.13 Cutter Chute and Platen (1) Press the two latches of the cutter chute inwards to release and then lift up the cutter chute straight, taking care not to let it catch on other parts. Cutter chute Latch Recorder & cutter ASSY (placed rightside up) Release the latch.
  • Page 76: Recording Head And Cutter Unit

    1.14 Recording Head and Cutter Unit (1) Push down the front edge of the recording head and move it back to the rear to release the tabs from the cutter unit. NOTE: Take care not to lose the three springs placed under the recording head. NOTE: Never disassemble the cutter unit.
  • Page 77: Hook Switch Sensor Actuator (Not Provided On Those Versions Equipped With A Binatone Handset

    1.15 Hook Switch Sensor Actuator (Not provided on those versions equipped with a Binatone handset.) (1) Press the lower section of the hook switch sensor actuator to the left to release the latch from the main frame, then swing it upwards. (2) Remove the spring.
  • Page 78: Bottom Plate

    1.17 Bottom Plate (1) Place the main frame upside down. (2) Remove the four screws. (3) Slightly lift up the bottom plate and disconnect the grounding terminal. Checking hole "a" Bottom plate Grounding terminal Resin PCB support "b" (Front) Main frame (placed upside down) Reassembling Notes •...
  • Page 79: Main Pcb, Ncu Pcb And Power Supply Pcb

    PCB. If the scanner frame ASSY and speaker are not yet removed, follow the steps below: FAX-170/190/510/HOME FAX (1) Slightly lift up the rear edge of the NCU PCB and disconnect it from the main PCB. (2) Slightly lift up the rear edge of the main PCB and disconnect the following harnesses from the main PCB: •...
  • Page 80 FAX-270MC/290MC/520DT/520MC/MFC370MC/390MC (1) Slightly lift up the rear edge of the NCU PCB and disconnect it from the main PCB. Power supply PCB NCU PCB Power supply harness Main frame (placed upside down) Main PCB (Front) NCU connector (Rear edge) Battery harness (2-pin) Cutter HP sensor harness (2-pin) Recording head harness...
  • Page 81 (2) Attempt to lift up the main PCB slightly. If it is impossible to lift up the PCB to an extent which allows you to disconnect the harnesses, you may not have unhooked the power supply harness core or cutter HP sensor harness core from bosses “C” or “D,” respec- tively.
  • Page 82 Reassembling Notes • Make sure that the power supply PCB is completely fitted in the resin PCB supports of the main frame. If it is loosely mounted so that it comes into contact with the bottom plate, a short circuit may occur. •...
  • Page 83: Paper Empty Sensor Actuator

    1.19 Paper Empty Sensor Actuator (1) Press the actuator support outwards and lift up the paper empty sensor actuator. The spring also comes off. Paper empty sensor actuator Actuator support Main frame (placed upside down) (Front) IV – 33...
  • Page 84: Lubrication

    2. LUBRICATION Apply Molykote EM-30L to the lubrication points as illustrated below. For points A, apply a rice-sized pinch of grease (6 mm For points B, apply a bean-sized pinch of grease (12 mm [ 1 ] Scanner frame ASSY Separation roller ASSY Scanner frame ASSY IV –...
  • Page 85 [ 2 ] Drive unit NEVER apply grease here. Drive unit Clutch arm Arm B Arm A [ 3 ] Recording head Recording head IV – 35...
  • Page 86 [ 4 ] Cutter unit Cutter unit IV – 36...
  • Page 87 CHAPTER V. MAINTENANCE MODE...
  • Page 88 CONTENTS ENTRY INTO THE MAINTENANCE MODE ..........LIST OF MAINTENANCE-MODE FUNCTIONS ..........DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS ..PROM Parameter Initialization ............Printout of Scanning Compensation Data ..........ADF Performance Test ................Test Pattern 1 ..................V-7 Firmware Switch Setting and Printout ........... Operational Check of Control Panel PCB ..........
  • Page 89: Entry Into The Maintenance Mode

    1. ENTRY INTO THE MAINTENANCE MODE To make the facsimile equipment enter the maintenance mode, press the Function , * , 2 , 8 , 6 , and 4 keys in this order. Within 2 seconds The equipment beeps for approx. 3 seconds and displays "MAINTENANCE" on the LCD, in- dicating that it is placed in the initial maintenance mode, a mode in which the equipment is ready to accept entry from the keys.
  • Page 90: List Of Maintenance-Mode Functions

    2. LIST OF MAINTENANCE-MODE FUNCTIONS Maintenance-mode Functions Reference Function Subsection Function Code (Page) PROM Parameter Initialization 3.1 (V-4) Printout of Scanning Compensation Data 3.2 (V-5) ADF* Performance Test 3.3 (V-6) Test Pattern 1 3.4 (V-7) Firmware Switch Setting 3.5 (V-8) Printout of Firmware Switch Data 3.5 (V-45) Operational Check of Control Panel PCB...
  • Page 91 IMPORTANT - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Basically, the maintenance-mode functions listed on the previous page should be accessed by service personnel only.
  • Page 92: Detailed Description Of Maintenance-Mode Functions

    3 DETAILED DESCRIPTION OF MAINTENANCE-MODE FUNCTIONS PROM Parameter Initialization Function The equipment initializes the parameters, user switches, and firmware switches registered in the E PROM, to the initial values. Entering the function code 01 initializes all of the PROM areas, but entering 91 does not initialize some areas, as listed below. Function code Data item Maintenance-mode functions...
  • Page 93: Printout Of Scanning Compensation Data

    Printout of Scanning Compensation Data Function The equipment prints out the white and black level data for scanning compensation. Operating Procedure Do not start this function merely after powering on the equipment but start it after carrying out a sequence of scanning operation. Unless the equipment has carried out any scanning operation, this function cannot print out correct scanning compensation data.
  • Page 94: Adf Performance Test

    ADF Performance Test Function The equipment counts the documents fed by the automatic document feeder (ADF) and dis- plays the count on the LCD for checking the ADF performance. Operating Procedure (1) Set documents. (Allowable up to the ADF capacity.) The "DOC.
  • Page 95: Test Pattern 1

    Test Pattern 1 Function This function, much like the copying function, prints out test pattern 1 to allow the service personnel to check for record data missing or print quality. Operating Procedure Press the 0 and 9 keys in this order in the initial maintenance mode. The figure below shows test pattern 1.
  • Page 96: Firmware Switch Setting And Printout

    Firmware Switch Setting and Printout [ A ] Firmware switch setting Function The facsimile equipment incorporates the following firmware switch functions (WSW01 through WSW34) which may be activated with the procedures using the control panel keys and buttons. The firmware switches have been set at the factory in conformity to the communications standards and codes of each country.
  • Page 97 Operating Procedure (1) Press the 1 and 0 keys in this order in the initial maintenance mode. The equipment displays the "WSW00" on the LCD and becomes ready to accept a firm- ware switch number. (2) Enter the desired number from the firmware switch numbers (01 through 34). The following appears on the LCD: WSWXX = 0 0 0 0 0 0 0 0 (3) Use the...
  • Page 98 Detailed Description for the Firmware Switches WSW01 (Dial pulse setting) Selector Function Setting and Specifications No. 1 Dial pulse generation mode 10-N No. 3 60 ms Break time length in pulse 67 ms dialing 40 ms (for 16 PPS) 64 ms (at 106-ms intervals) No.
  • Page 99 Selector 7: Switching between pulse (DP) and tone (PB) dialing, by the function switch This selector determines whether or not the dialing mode may be switched between the pulse (DP) and tone (PB) dialing by using the function switch. Selector 8: Default dialing mode, pulse (DP) or tone (PB) dialing This selector sets the default dialing mode (pulse dialing or tone dialing) which may be changed by the function switch.
  • Page 100 WSW03 (PABX* mode setting) Selector Setting and Specifications Function CNG detection when sharing a 0: A 1: B modular wall socket with a telephone No. 2 50 ms 210 ms Min. detection time length of 500 ms PABX* dial tone, required for 800 ms starting dialing 900 ms...
  • Page 101 Selectors 6 and 7: Dial tone detection in PABX These selectors activate or deactivate the dial tone detection function which detects a dial tone when a line is connected to the PABX. Setting both of these selectors to "1" activates the dial tone detection function so that the equipment starts dialing upon detection of a dial tone when a line is connected.
  • Page 102 WSW04 (TRANSFER facility setting) Selector Setting and Specifications Function Earth function in transfer facility Provided 1: Not provided No. 2 Dual tone detection frequency 350 + 440 Hz (A) in ICM recording 440 + 480 Hz (B) 480 + 620 Hz (C) Tone detection level in ICM 0: OFF 1: High...
  • Page 103 WSW05 (1st dial tone and busy tone detection) Selector Function Setting and Specifications No. 1 3.5 sec. WAIT 7.0 sec. WAIT 10.5 sec. WAIT 14.0 sec. WAIT 1st dial tone detection 17.5 sec. WAIT 21.0 sec. WAIT 24.5 sec. WAIT Detection (Without WAIT) Max.
  • Page 104 Selectors 5 and 6: Busy tone detection in automatic sending mode These selectors determine whether or not the equipment automatically disconnects a line upon detection of a busy tone in automatic sending mode. Setting selector 6 to "0" ignores a busy tone so that the equipment does not disconnect the line.
  • Page 105 WSW06 (PAUSE key setting and 2nd dial tone detection) Selector Function Setting and Specifications No. 1 : No pause : 3.5 sec. WAIT : 7 sec. WAIT : 10.5 sec. WAIT : 14 sec. WAIT PAUSE key setting and 2nd dial : 17.5 sec.
  • Page 106 Selectors 4 through 6: Detection of international tone Upon detection of the 2nd dial tone for the time length specified by these selectors, the equipment starts dialing. This setting is effective only when the 2nd dial tone detection function is activated by selec- tors 1 through 3 (Setting 1, 1, 0 or 1, 1, 1).
  • Page 107 WSW07 (Dial tone setting 1) Selector Function Setting and Specifications No. 1 Narrows by 10 Hz Frequency band range Initial value Widens by 10 Hz Line current detection 0: No 1: Yes No. 4 -21 dBm -24 dBm -27 dBm 2nd dial tone detection level -30 dBm (Z = 600 Ω)
  • Page 108 WSW08 (Dial tone setting 2) Selector Function Setting and Specifications No. 1 50 ms 210 ms 500 ms 1st dial tone detection time 800 ms length 900 ms 1.5 sec. 2.0 sec. 2.5 sec. No. 4 : 10 sec. Time-out length for 1st and 2nd : 20 sec.
  • Page 109 WSW09 (Protocol definition 1) Selector Function Setting and Specifications Frame length selection 0: 256 octets 1: 64 octets Not used. No. 3 4 times No. of retries 3 times 2 times 1 time T5 timer 0: 300 sec. 1: 60 sec. T1 timer 0: 35 sec.
  • Page 110 WSW10 (Protocol definition 2) Selector Function Setting and Specifications Switching of DPS, following the 0: No 1: Yes CML ON/OFF Time length from transmission 0: 100 ms 1: 50 ms of the last dial digit to CML ON Time length from CML ON to 0: 2 sec.
  • Page 111 WSW11 (Busy tone setting) Selector Function Setting and Specifications No. 1 Narrows by 10 Hz Frequency band range Initial value Widens by 10 Hz Not used. 1: 400-600/400-600 ms 1: 175-440/175-440 ms ON/OFF time length ranges 1: 700-800/700-800 ms (More than one setting allowed) 1: 110-410/320-550 ms 1: 100-660/100-660 ms NOTE: The WSW11 is not applicable in those countries where no busy tone detection is sup-...
  • Page 112 WSW12 (Signal detection condition setting) Selector Function Setting and Specifications No. 1 300 ms Min. OFF time length of calling 500 ms signal (Ci) 700 ms 900 ms No. 3 6 sec. Max. OFF time length of calling 7 sec. signal (Ci) 9 sec.
  • Page 113 WSW13 (Modem setting) Selector Function Setting and Specifications No. 1 0 km 1.8 km Cable equalizer 3.6 km 5.6 km No. 3 : -43 dBm Reception level : -47 dBm : -49 dBm : -51 dBm 0: 0 dB 1: 8 dB 0: 0 dB 1: 4 dB Modem attenuator...
  • Page 114 WSW14 (AUTO ANS facility setting) Selector Function Setting and Specifications No. 1 13 Hz Frequency band selection 15 Hz (Lower limit) 23 Hz 20 Hz No. 3 30 Hz Frequency band selection 55 Hz (Upper limit) 70 Hz 70 Hz No.
  • Page 115 WSW15 (REDIAL facility setting) Selector Function Setting and Specifications No. 1 5 minutes Selection of redial interval 1 minute 2 minutes 3 minutes No. 3 : 16 times 1 time No. of redialings 2 times 3 times : 15 times Not used.
  • Page 116 WSW16 (Function setting 1) Selector Setting and Specifications Function Automatic cutter 0: ON 1: OFF CCITT superfine recommendation 0: OFF 1: ON 0: Only from the 1: From all connected telephones Remote reception external connected telephone Not used. 0: OFF 1: ON Exclusive line mode Max.
  • Page 117 WSW17 (Function setting 2) Selector Function Setting and Specifications No. 1 No alarm Always valid Off-hook alarm Valid except when 'call reservation' is selected. Power failure report output 0: ON 1: OFF Calendar clock/prompt alter- 0: NO 1: YES nate display Calendar clock type 0: U.S.A.
  • Page 118 WSW18 (Function setting 3) Selector Function Setting and Specifications Fixed to 1. CCD manufacturer setting No. 2 40 sec. Detection enabled time for CNG 0 sec. (No detection) and no tone 5 sec. 80 sec. ACS* check sheet output 0: Operative 1: Inoperative function on/off key ACS* check sheet output...
  • Page 119 WSW19 (Transmission speed setting) Selector Function Setting and Specifications No. 1 No. 4 First transmission speed choice 2,400 bps for fallback 4,800 bps 7,200 bps 9,600 bps 12,000 bps Last transmission speed choice for fallback 14,400 bps Not used. * In those models with a maximum of 9600 bps capability, selection of 12,000 bps or 14,400 bps will still only produce a set speed automatically reduced to 9600 bps.
  • Page 120 WSW20 (Overseas communications mode setting) Selector Function Setting and Specifications EP* tone prefix 0: OFF Overseas communications mode 0: 2100 Hz 1100 Hz (Reception) Overseas communications mode 0: OFF 1: Ignores DIS once. (Transmission) No. 4 Min. time length from reception 100 ms of CFR to start of transmission of 200 ms...
  • Page 121 WSW21 (TAD setting 1) Selector Function Setting and Specifications No. 1 0 : No detection 1 : 1 sec. 0 : 2 sec. Max. waiting time for voice signal 1 : 3 sec. 0 : 8 sec. 1 : 31 sec. No.
  • Page 122 WSW23 (Communications setting) Selector Setting and Specifications Function 0: From the head of a series of zeros Starting point of training check (TCF) 1: From any arbitrary point No. 2 Allowable training error rate 0.5% No. 4 Decoding error rate for transmission of RTN Not used.
  • Page 123 WSW24 (TAD setting 2) Selector Setting and Specifications Function No. 1 15 sec. 20 sec. Maximum OGM recording time 30 sec. 50 sec. No. 3 4 sec. Time length from CML ON to 3 sec. start of pseud ring backtone 2 sec.
  • Page 124 WSW25 (TAD setting 3) Selector Function Setting and Specifications Not used. No. 5 2 sec. Pause between paging number and PIN 4 sec. 16 sec. Automatic shift to facsimile message receive mode in ICM 0: YES 1: NO recording mode Selectors 5 and 7: Pause between paging number and PIN (For those models equipped with a built-in TAD) These selectors set the pause time between a telephone number being paged and PIN (pri-...
  • Page 125 WSW26 (Function setting 4) Selector Function Setting and Specifications Application of DC wetting pulse 0: OFF 1: ON Overvoltage limiter at the apply- 0: ON 1: OFF ing time of a wetting pulse Not used. No. 4 No. of CNG cycles to be detected No detection (when the line is connected via the external telephone except in the...
  • Page 126 WSW27 (Function setting 5) Selector Function Setting and Specifications Not used. Ringer OFF setting 0: YES 1: NO Automatic playback of OGM at 0: NO 1: YES the start time of OGM ON mode Detection of distinctive ringing 0: NO 1: YES pattern Automatic erasure of voice alarm...
  • Page 127 WSW28 (Function setting 6) Selector Function Setting and Specifications No. 1 0 dB +1 dB +2 dB Transmission level of DTMF +3 dB high-band frequency signal 0 dB –1 dB –2 dB –3 dB No. 4 0 dB +1 dB +2 dB Transmission level of DTMF +3 dB...
  • Page 128 WSW29 (Function setting 7) Selector Function Setting and Specifications No. 1 -47.0 dBm -48.5 dBm Compression threshold level for -50.0 dBm voice signals inputted via the -51.5 dBm network in the built-in TAD -53.0 dBm operation -54.5 dBm -56.0 dBm No.
  • Page 129 WSW30 (Function setting 8) Selector Function Setting and Specifications No. 1 -38.0 dBm -39.5 dBm -41.0 dBm Detection level of dial tone or -42.5 dBm busy tone for the built-in TAD operation -44.0 dBm -45.5 dBm -47.0 dBm -48.5 dBm Not used.
  • Page 130 WSW31 (Function setting 9) Selector Function Setting and Specifications Not used. Minimum short-OFF duration in 0: 130 ms 1: 90 ms distinctive ringing Not used. Selector 5: Minimum short-OFF duration in distinctive ringing The ringer pattern consists of short and long rings, e.g., short-short-long rings. This selector sets the minimum OFF duration following a short ring in order to avoid missing ringer tones in distinctive ringing.
  • Page 131 WSW33 (Function setting 11) Selector Function Setting and Specifications No. 1 -42.5 dBm -44.0 dBm Detection threshold level for -45.5 dBm voice signals inputted via the -47.0 dBm network in the built-in TAD -48.5 dBm operation -50.0 dBm -51.5 dBm -53.0 dBm No.
  • Page 132 WSW34 (Function setting 12) Selector Function Setting and Specifications No. 1 0 sec. ICM recording time to be erased 1 sec. preceding the tone detection 2 sec. when the equipment automatically 3 sec. disconnects the line because no 4 sec. voice signal has been received 5 sec.
  • Page 133 [ B ] Printout of firmware switch data Function The equipment prints out the setting items and contents specified by the firmware switches. Operating Procedure (1) Press the 1 key twice in the initial maintenance mode. The "PRINTING" will appear on the LCD. (2) The equipment prints out the configuration list as shown in the figure below.
  • Page 134: Operational Check Of Control Panel Pcb

    Operational Check of Control Panel PCB Function This function checks the control panel PCB for normal operation. Operating Procedure (1) Press the 1 and 3 keys in this order in the initial maintenance mode. The "00 " will appear on the LCD. (2) Press the keys and buttons in the order designated in the illustration shown below.
  • Page 135 FAX-270MC/290MC FAX-520DT V – 47...
  • Page 136 FAX-520MC MFC370MC/390MC V – 48...
  • Page 137: Sensor Operational Check

    Sensor Operational Check Function This function allows you to check that the six sensors (document front sensor, document rear sensor, cover sensor, PE sensor, cutter HP sensor and hook switch sensor*) operate cor- rectly. (*In those versions equipped with a Binatone handset, the hook switch sensor serves no function.) In those versions equipped with a non-Binatone handset, the LCD shows the “FRE RC PE CHK”...
  • Page 138: Cis Scanner Area Setting

    CIS Scanner Area Setting Function The equipment sets the CIS scanner area and stores it into the E PROM. Operating Procedure (1) Press the 5 key twice in the initial maintenance mode. The "SCANNER AREA SET" will appear on the LCD. The equipment checks and sets the area to be scanned.
  • Page 139: Document Draw Adjustment

    3.10 Document Draw Adjustment After replacement of the main PCB or CIS, or if data stored in the E PROM is damaged, you need to carry out this procedure. Function This function adjusts how much the document is drawn in, starting at the point when the document rear sensor is turned on until the leading edge of the document reaches the scan- ning start position.
  • Page 140 CHAPTER VI. ERROR INDICATION AND TROUBLESHOOTING...
  • Page 141 CONTENTS ERROR INDICATION ..................VI-1 1.1 Equipment Errors ................... VI-1 [ 1 ] Error messages on the LCD ............VI-1 [ 2 ] Error codes shown in the "MACHINE ERROR XX" message ..VI-3 1.2 Communications Errors ................VI-4 TROUBLESHOOTING ................... VI-11 2.1 Introduction .....................
  • Page 142: Error Indication

    1. ERROR INDICATION To help the user or the service personnel promptly locate the cause of a problem (if any), the facsimile equipment incorporates the self-diagnostic functions which display error messages for equipment errors and communications errors. For the communications errors, the equipment also prints out the transmission verification re- port and the communications list.
  • Page 143 Messages on the LCD Probable Cause DOCUMENT JAM Document loading error (1) The document rear sensor detects no leading edge of a document within 10 seconds from the start of document loading operation. (The document rear sensor stays OFF even after the document has been fed when the document front sensor was ON.) (2) The loaded document is too short.
  • Page 144: 2 ] Error Codes Shown In The "Machine Error Xx" Message

    [ 2 ] Error codes shown in the “MACHINE ERROR XX” message Error Code Error factor (Hex.) Recording paper feeding error. Fails to complete the sequence of recording operation. ( 89 Cutter jam. ) Wrong or weak contact of the recording head connectors. ( 8B Recording head overheat.
  • Page 145: Communications Errors

    Communications Errors If a communications error occurs, the facsimile equipment (1) emits an audible alarm (intermittent beeping) for approximately 4 seconds, (2) displays the corresponding error message, and (3) prints out the transmission verification report if the equipment is in sending operation. VI –...
  • Page 146 Definition of Error Codes on the Communications List (1) Calling Code 1 Code 2 Causes Wrong number called. No dial tone detected before start of dialing. Busy tone detected before dialing. 2nd dial tone not detected. No loop current detected. * Busy tone detected after dialing or called.
  • Page 147 (3) Compatibility [checking the NSF and DIS] Code 1 Code 2 Causes Remote terminal only with V.29 capability in 2400 or 4800 bps transmission. Remote terminal not ready for polling. Remote terminal not equipped with password function or its password switch OFF. Remote terminal not equipped with or not ready for confi- dential mail box function.
  • Page 148 (4) Instructions received from the remote terminal [checking the NSC, DTC, NSS, and DCS] Code 1 Code 2 Causes Illegal coding system requested. Illegal recording width requested. ECM requested although not allowed. Polled while not ready. No document to send when polled. Nation code or manufacturer code not coincident.
  • Page 149 (6) ID checking Code 1 Code 2 Causes Password plus "lower 4 digits of telephone number" not coincident. Password not coincident. Polling ID not coincident. Entered confidential mail box ID uncoincident with the mail box ID. Relay broadcasting ID not coincident. Entered retrieval ID uncoincident with that of the mail box (7) DCN reception Code 1...
  • Page 150 (9) Signal isolation Code 1 Code 2 Causes Unable to detect video signals and commands within 6 seconds after CFR is transmitted. Received PPS containing invalid page count or block count. (10) Video signal reception Code 1 Code 2 Causes Error correction sequence not terminated even at the final transmission speed for fallback.
  • Page 151 (12) Maintenance mode Code 1 Code 2 Causes Failed to detect 1300 Hz signal in burn-in operation. Failed to detect PB signals in burn-in operation. Failed to detect any command from the RS-232C interface in burn-in operation. (13) Equipment error Code 1 Code 2 Causes...
  • Page 152: Troubleshooting

    2. TROUBLESHOOTING Introduction This section gives the service personnel some of the troubleshooting procedures to be fol- lowed if an error or malfunction occurs with the facsimile equipment. It is impossible to an- ticipate all of the possible problems which may occur in future and determine the trouble- shooting procedures, so this section covers some sample problems.
  • Page 153: Troubleshooting Procedures

    Troubleshooting Procedures [ 1 ] Control panel related Trouble Check: • Main-panel harness between the main PCB and the (1) LCD shows nothing. control panel PCB • Interfaces between the main PCB, NCU PCB and power supply PCB • Control panel PCB •...
  • Page 154: 3 ] Communications Related

    Trouble Check: (5) Telephone does not ring. • Speaker • NCU PCB • Main PCB [ 3 ] Communications related Trouble Check: (1) No tone is transmitted. • Main PCB • NCU PCB [ 4 ] Paper/document feeding related Trouble Check: (1) Neither "COPY: PRESS •...
  • Page 155: 5 ] Print-Image Related

    [ 5 ] Print-image related If the received or sent image has any problem, first make a copy with the facsimile equip- ment. If the copied image is normal, the problem may be due to the remote terminal; if it is abnor- mal, proceed to the following checks: Trouble Check:...
  • Page 156 Trouble Check: (6) Faulty image registration At the scanner • CIS harness • CIS unit • Main PCB At the recorder • Recording head harness • Main PCB (7) Image distortion • Error code displayed (Refer to Section 1, “ERROR In communications INDICATION”...
  • Page 157 March '98 5X1S112 Printed in Japan...
  • Page 158 FAX-170/190/510/HOME FAX APPENDICES Circuit Diagrams A. Main PCB B. Network Control Unit (NCU) PCB C. Control Panel PCB D. Power Supply PCB...
  • Page 159 R H 5 V A 4 3 R S T L 4 7 C R 4 4 N . C T 7 D 5 4 - U L F 3 1 . 5 K R 8 8 V C C R 1 1 0 4 .
  • Page 160 G N D C C 1 0 4 G N D C 6 0 C C 1 0 4 P D 2 7 C 2 0 0 1 A V P P G N D V C C # 1 0 R 8 6 1 6 B R O M C...
  • Page 161 + 2 6 V C I S + 2 6 V Z D 3 1 0 0 M T Z J 8 . 2 1 3 E Q 1 4 2 7 0 D 2 0 9 6 1 3 E Z D 2 M O T O R + 2 6 V...
  • Page 162 D E N G E N P 1 0 B 6 B P H C R 1 7 8 0 5 + 8 V R E D O J E - S H - 1 2 4 D M H 2 6 V O U T P 0 V G N D...
  • Page 163 FAX170/190/ FAX170/190 FAX510 FAX170/190 FAX510 FAX170 HOME FAX S.ASSY S.ASSY 11 S.ASSY 12 S.ASSY 21 S.ASSY 22 S.ASSY 23 PAGE UF6682001 UF6970001 UF6965012 UF6968021 UF6982001 Not fixed. — CC104 CC104 — — — — CC104 CC104 — — — — CC104 CC104 —...
  • Page 164 + 2 6 V C R 1 M Z F - 2 4 H G C M L O U A Z - S S - 1 2 4 D R A 3 5 1 X 2 N C U S L S 0 V R L 1 R L 2...
  • Page 165 J P 8 J P 8 ( 5 ) ( 5 ) A - O U T A - O U T R D P S R D P S J P 1 1 J P 1 1 ( 1 0 ) ( 1 0 ) J P 2 7 ( C ) J P 2 7 ( C )
  • Page 166 J P 2 9 ( C ) J P 8 ( 5 ) A - O U T R D P S J P 1 1 ( 1 0 ) J P 2 7 ( C ) T E L O F F 1 L I N E J P 2 2 ( 1 0 ) J P 2 0...
  • Page 167 J P 2 9 ( C ) 4 . 3 V J P 8 ( 5 ) A - O U T R D P S J P 1 1 ( 1 0 ) J P 2 7 ( C ) T E L O F F 1 S P 7 L I N E...
  • Page 168 J P 8 ( 5 ) A - O U T R D P S J P 1 1 ( 1 0 ) J P 2 7 ( C ) T E L O F F 1 L I N E J P 2 2 ( 1 0 ) J P 2 0 ( 5 )
  • Page 169 + 2 6 V C R 1 M Z F - 2 4 H G C M L O U A Z - S S - 1 2 4 D R A 5 0 1 X 2 N C U S L S 0 V R L 1 R L 2...
  • Page 170 J P 8 ( 5 ) A - O U T R D P S J P 1 1 R 6 5 ( 1 0 ) J P 2 3 C 3 7 T E L O F F 1 J P 2 7 ( C ) ( 5 ) S P 7...
  • Page 171 + 5 V + 5 V 5 2 0 8 9 - 1 4 1 0 C C 1 0 4 G N D 5 2 0 8 9 - 1 2 1 0 B U 1 2 1 0 2 - P N L 2 + 5 V C C 1 0 4 K O 0...
  • Page 172 P A N E L K E Y M A T R I X R E F E R E N C E T A B L E K E Y N O . K E Y N A M E K E Y C O E M O D E...
  • Page 173 POWER SUPPLY (100-120 V) U.S.A., CANADA...
  • Page 174 POWER SUPPLY (200-240 V) EUROPE, SOUTH AMERICA...
  • Page 175 POWER SUPPLY (200-240 V) GULF, ASIA, CHINA...
  • Page 176 FAX-270MC/290MC/520DT/520MC MFC370MC/390MC APPENDICES Circuit Diagrams A. Main PCB B. Network Control Unit (NCU) PCB C. Control Panel PCB D. Power Supply PCB...
  • Page 177 : REFER TO MAIN 6/6. + 5 V R 5 1 1 0 0 R H 5 V A 4 3 C 3 5 R 5 3 4 . 7 K R V D D T 7 D 6 0 1 0 1 1 .
  • Page 178 : REFER TO MAIN 6/6. D A 9 # 1 3 P D 2 7 C 2 0 0 1 A D A 8 R M R D A 1 7 - 0 E 1 6 B D A 7 R O M C A 1 6 - C E...
  • Page 179 : REFER TO MAIN 6/6. + R 5 C I S R 0 V G N D B 7 B P H + 2 6 V R 0 V Not mounted. R 1 3 0 8 2 0 R 1 2 6 7 5 0 1 / 2 W 1 3 E...
  • Page 180 : REFER TO MAIN 6/6. * R 4 1 1 S S 1 2 0 P 1 0 + 9 V * D 4 + 2 6 V B 5 B P H 7 8 0 5 * C 1 0 P O W E R C R 1 * R 3 6...
  • Page 181 : REFER TO MAIN 6/6. Not mounted. * R 1 3 8 C T S E L 1 6 C X C O M C T R L * R 8 9 X C H 0 4 2 C * R 8 4 * R 8 8 X C H 1 T R L...
  • Page 182 FAX-270MC/290MC, FAX-520DT/ FAX-520DT MFC370MC/390MC 520MC S . A S S Y S . A S S Y S . A S S Y P A G E N O . P 1 3 P C I L 7 , L 1 0 L 1 1 PW M C 6 7...
  • Page 183 + 2 6 V C R 1 M Z F - 2 4 H G C M L O U A Z - S S - 1 2 4 D R A 3 5 1 X 2 N C U S L S 0 V S B T 0 2 6 0 X 2 R L 1...
  • Page 184 J P 8 J P 8 ( 5 ) ( 5 ) A - O U T A - O U T R D P S R D P S J P 1 1 J P 1 1 ( 1 0 ) ( 1 0 ) J P 2 7 ( C ) J P 2 7 ( C )
  • Page 185 J P 2 9 ( C ) J P 8 ( 5 ) A - O U T R D P S J P 1 1 ( 1 0 ) J P 2 7 ( C ) T E L O F F 1 L I N E J P 2 2 ( 1 0 ) J P 2 0...
  • Page 186 J P 2 9 ( C ) 4 . 3 V J P 8 ( 5 ) A - O U T R D P S J P 1 1 ( 1 0 ) J P 2 7 ( C ) T E L O F F 1 S P 7 L I N E...
  • Page 187 J P 8 ( 5 ) A - O U T R D P S J P 1 1 ( 1 0 ) J P 2 7 ( C ) T E L O F F 1 L I N E J P 2 2 ( 1 0 ) J P 2 0 C M L...
  • Page 188 + 2 6 V C R 1 M Z F - 2 4 H G C M L O U A Z - S S - 1 2 4 D R A 5 0 1 X 2 N C U S L S 0 V R L 1 R L 2...
  • Page 189 J P 8 ( 5 ) A - O U T R D P S J P 1 1 R 6 5 ( 1 0 ) J P 2 3 C 3 7 T E L O F F 1 J P 2 7 ( C ) ( 5 ) S P 7...
  • Page 190 + 5 V + 5 V C C 1 0 4 G N D B U 1 2 1 0 2 - P N L 2 + 5 V C C 1 0 4 K O 0 R S T G N D R A 1 K O 1...
  • Page 191 P A N E L K E Y M A T R I X R E F E R E N C E T A B L E K E Y N O . K E Y C O E M O D E R E S O L U T I O N S E T...
  • Page 192 POWER SUPPLY (100-120 V) U.S.A., CANADA...
  • Page 193 POWER SUPPLY (200-240 V) EUROPE, SOUTH AMERICA...
  • Page 194 POWER SUPPLY (200-240 V) GULF, ASIA, CHINA...
  • Page 195 FACSIMILE EQUIPMENT PARTS REFERENCE LIST MODEL: FAX170 / 190 / 190 Plus / 195...
  • Page 196 © Copyright Brother 1998 All rights reserved No part of this publication may be reproduced in any form or by any means without permission in writing from the publisher. Specifications are subject to change without prior notice.
  • Page 197 NOTES FOR USING THIS PARTS REFERENCE LIST 1. In the case of ordering parts, it needs mentioning the following items: (1) Code (2) Q' ty (3) Description Note: No orders without Parts Code or Tool No. can be accepted. [Example] REF.NO.
  • Page 199 * The parts are newly established to comply with CCIB Standard. <Refer to TI No. FAX97004> REF.NO. CODE Q'TY DESCRIPTION REMARKS UF6612000 SEPARATION ROLLER GEAR UF6613001 SEPARATION ROLLER UF6625001 ACTUATOR F UF6626001 ACTUATOR R UF6675001 UF6646001 CIS LEAF SPRING UG3510001 CIS-MAIN HARNESS UF6645000 CIS HOLDER PLATE...
  • Page 200 * The parts are newly established to comply with CCIB Standard. <Refer to TI No. FAX97004> REF.NO. CODE Q'TY DESCRIPTION REMARKS UF2942001 PANEL SHEET, FAX195 FOR IND UF6829001 RECORDING PAPER COVER ASSY, GRAY(1395) FOR FAX170 UF6829002 RECORDING PAPER COVER ASSY, WHITE(1397) FOR FAX190/195 UF6829004 RECORDING PAPER COVER ASSY, WHITE(1138) FOR FAX190PLUS 087311015...
  • Page 201 (66) UF2580001 QUICK REFERENCE GUIDE, FAX190PLUS FOR HK/ASA/IDN (ENGLISH) (66) UF2579001 QUICK REFERENCE GUIDE FOR HK (CANTONESE) (67) UE1490001 CARTON, BROTHER, FAX170 FOR CHN/ASA/GUL/IDN (67) UE1549001 CARTON, BROTHER, FAX170 FOR TWN (67) UE1979001 CARTON, BROTHER, FAX170 FOR RUS (67) UE1550001...
  • Page 202 * The parts are newly established to comply with CCIB Standard. <Refer to TI No. FAX97004> REF.NO. CODE Q'TY DESCRIPTION REMARKS (67) UE3029001 CARTON, BROTHER, FAX190PLUS FOR HK/ASA/IDN (68) UE1451001 STYROFOAM ASSY (69) UF6891001 WIPING CLOTH ASSY (70) UF8820001 TEST CHART-025...
  • Page 204 #  & #  &  . /012  &  . /012  &          3 12 456 02 6/ 1 /70/ 4  / 0 *46 0 46  3 12 456 02 6/ 1 /70/ 4  / 0 *46 0 46 Brother Technical Information /FAX99023...
  • Page 205             Compatibility             BIUK BITM Serial No    Treatment of Old Parts in stock Treatment of Old Parts for refurbishing:   Brother Technical Information /FAX98250...
  • Page 206 !8! !    # &:&:8-::8-    # &:&:8-::8-    #  . /01    #  . /01    #      #      # ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX98250...
  • Page 207 Treatment of Old Parts in stock Treatment of Old Parts for refurbishing:   Remarks: )* &"!8!  :# )* &"!8!  :#  ! !" !#!#!  ! 01  :   ! !" !#!#!  ! 01  :  Brother Technical Information /FAX99102...
  • Page 208 & -8& -8)* & !    . /01    . /01   #  : #  : "   :  "   :  &:& :8-: :8-  : &:& :8-: :8-  : ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX99102...
  • Page 209             Compatibility             Serial Information by BIL    Treatment of Old Parts in stock Treatment of Old Parts for refurbishing:   Brother Technical Information /FAX98583...
  • Page 210 9 / 0" 7*0 02 1*00 12*0 40 02 1 6 = 1*00 > 9  ?0" 7*0 02 7 04 40 02 1 6 = 1*00 > 9  ?0" 7*0 02 7 04 40 02 1 6 = 1*00 > ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX98583...
  • Page 211 9      9      Model:FAX170, FAX190, FAX518, FAX528TD (For China) Part Code Change Parts List Change Service Manual Change                Brother Technical Information /FAX97115...
  • Page 212 &:    " & :8-      !  83    :  !  83    : 9     : 9     : ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX97115...
  • Page 213 !$%  #" !$%  #" Remarks: ,-,-'+$83!'" &'     ,-,-'+$83!'" &'      ! !"!#!#!!$%  # "  ! !"!#!#!!$%  # "  !!',-,-'+$83"& :8-&:" "& -8  ##"  !!',-,-'+$83"& :8-&:" "& -8  ##" Brother Technical Information /FAX97039...
  • Page 214             Compatibility             &@# Serial No    Treatment of Old Parts in stock Treatment of Old Parts for refurbishing:   ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX98103...
  • Page 215   Remarks: This assembly is included paper guide and explanatory sheet. Order to BIL. Model: FAX510, FAX520DT Part Code Change Parts List Change Service Manual Change                Brother Technical Information /FAX97007...
  • Page 216             Serial No    Treatment of Old Parts in stock Treatment of Old Parts for refurbishing:   Remarks: his assembly is included paper guide and explanatory sheet. Order to BI.UK. ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX97007...
  • Page 217 Treatment of Old Parts for refurbishing:    41  :   "  :   !" 46   :  &:& :8-  41  :   "  :   !" 46   :  &:& :8- Remarks: ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX98195...
  • Page 218          Compatibility             :&@& @ Serial Information by BIL    Treatment of Old Parts in stock Treatment of Old Parts for refurbishing:   ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX98125...
  • Page 219          Compatibility             C85445467 Serial Information by BIL    Treatment of Old Parts in stock Treatment of Old Parts for refurbishing:   Remarks: ¸¸¸¸¸¸¸¸¸¸¸ Brother Technical Information /FAX98091...

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