Philips FWM372 SERIES Service Manual
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Philips FWM372 SERIES Service Manual

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©
Copyright 2006 Philips Consumer Electronics B.V. Eindhoven, The Netherlands
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or
transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise
without the prior permission of Philips.
Published by SL0612 Service Audio
Version 1.1
TABLE OF CONTENTS
Location of PC Boards ................................................ 1-2
Versions Variation & Package .................................... 1-2
Specifications .............................................................. 1-3
Measurement Setup ................................................... 1-4
Service Aids, Safety Instruction, etc ................ 1-5 to 1-7
Preparations & Controls ................................ 1-8 to 1-10
Maintenance & Troubleshooting ............................... 1-11
Setting Procedure & Repair Instructions ....................... 2
Disassembly Instructions & Service positions .............. 3
Block Diagram ............................................................... 4
Wiring Diagram .............................................................. 5
Front Board & Key Board .............................................. 6
ECO6 Tuner Board : Systems Non-Cenelec .............. 7A
Systems Cenelec ...................... 7B
ETF7 Tape Board ........................................................... 8
Mains Board ................................................................... 9
Power Board ................................................................ 11
AF9 Board .................................................................... 12
Mechanical Exploded View & Parts List ...................... 13
Revision List ................................................................ 14
Printed in The Netherlands Subject to modification.
FWM372/
FWM572/
Page
CLASS 1
LASER PRODUCT
GB
all versions
all versions
3141 785 30861

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  • Page 1 LASER PRODUCT © Copyright 2006 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips.

  • Page 2: Location Of Pcbs

    LOCATION OF PCBS Front Board CD Key Board AF9 Board ETF7 Tuner Module Power Board Cass Board Mains Board VERSION VARIATIONS: Type /Versions: FWM372/FWM572 Features & Board in used: Karaoke News Rotary Encoder (volume control) Jog Shuttle Voltage Selector Aux Input Digital Output Headphone Socket Line Output...

  • Page 3: Specification

    SPECIFICATION GENERAL: CASSETTE RECORDER: Mains voltage : 230V ± 10% /05/12 Number of track : 2 x 2 stereo 127V ± 15% / 240V ± 10% /55/98 : 4.76 cm/sec ± 2% Tape speed Mains frequency : 50/60Hz Wow and flutter : <...

  • Page 4: Measurement Setup

    MEASUREMENT SETUP Tuner FM Bandpass LF Voltmeter 250Hz-15kHz e.g. PM2534 e.g. 7122 707 48001 RF Generator e.g. PM5326 S/N and distortion meter e.g. Sound Technology ST1700B Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Tuner AM (MW,LW) Bandpass LF Voltmeter...

  • Page 5: Service Aids

    SERVICE AIDS ESD Equipment: Service Tools: Universal Torx driver holder .........4822 395 91019 Anti-static table mat - large 1200x650x1.25mm ...4822 466 10953 anti-static table mat - small 600x650x1.25mm ..4822 466 10958 Torx bit T10 150mm ...........4822 395 50456 Anti-static wristband ..........4822 395 10223 Torx driver set T6-T20 .........4822 395 50145 Connectorbox (1M Ω)

  • Page 6: Class 1 Laser Product

    WAARSCHUWING WARNING Alle IC’s en vele andere halfgeleiders zijn All ICs and many other semi-conductors are gevoelig voor electrostatische ontladingen susceptible to electrostatic discharges (ESD). (ESD). Careless handling during repair can reduce life Onzorgvuldig behandelen tijdens reparatie kan drastically. de levensduur drastisch doen verminderen. When repairing, make sure that you are Zorg ervoor dat u tijdens reparatie via een connected with the same potential as the mass...

  • Page 7: Information About Lead-Free Soldering

    To avoid wear-out of tips switch off un-used equipment, or reduce heat. • Mix of lead-free solder alloy / parts with leaded solder alloy / parts is possible but PHILIPS recommends strongly to avoid mixed solder alloy types (leaded and lead-free).

  • Page 8: Preparations And Controls

    PREPARATIONS AND CONTROLS...
  • Page 9 PREPARATIONS AND CONTROLS...
  • Page 10 1-10 PREPARATIONS AND CONTROLS...

  • Page 11: Maintenance And Troubleshooting

    1-11 MAINTENANCE AND TROUBLESHOOTING...

  • Page 12: Dismantling Instructions

    DISMANTLING INSTRUCTIONS Dismantling of the CDC Module and Front Panel Dismantling of the Cassette Cover 4) Remove the Cover Tray CDC as indicated. 2. Twist screw driver 5. Twist screw driver 3. Lift up and out 1. Place screw driver 6.
  • Page 13 Dismantling of the Front Board Dismantling of Rear Portion 1) Remove 6 screws C and 7 screws D as indicated to loosen the Front 1) Remove 2 screws F as indicated to loosen the Speaker Board. Board. 2) Remove 4 screws E as indicated to loosen the Front Board. 2) Remove 1 screws J and uncatch M1 as indicated to loosen the AF Board.
  • Page 14 Repair Hints 3) During repair it is possible to disconnect the Tape board Service pos C and CDC Module completely unless the fault is sus- pected to be in that area. This will not affect the performance of the rest of the set. Service pos A Note: The flex cables are very fragile, care should be taken not to damage them during repair.

  • Page 15: Service Test Program

    SERVICE TEST PROGRAM To start service test program hold 6 & AUX depressed while plugging in the mains cord S refers to Service Mode. Display shows the ROM version * V refers to Version. "S-Vyy" yy refers to Software version number of µProcessor. (Main menu) (Counting up from 01 to 99) TUNER...

  • Page 16: Block Diagram

    SET BLOCK DIAGRAM - FWM372...
  • Page 17 SET BLOCK DIAGRAM - FWM572...

  • Page 18: Wiring Diagram

    SET WIRING DIAGRAM - FWM372...
  • Page 19 SET WIRING DIAGRAM - FWM572...

  • Page 20: Ftd Display Pin Connection

    FTD DISPLAY PIN CONNECTION FRONT & KEY & USB BOARD TABLE OF CONTENTS FTD Display Pin Connection ........... 6-1 Front PCB - Layout Top View .......... 6-2 Front PCB - Layout Bottom View ........6-3 Circuit Diagram ..............6-4 PCB Layout (CD Key & USB Jack Part) ......6-5 Electrical Parts List ............
  • Page 21 PCB LAYOUT - FRONT BOARD (TOP VIEW)
  • Page 22 PCB LAYOUT - FRONT BOARD (BOTTOM VIEW)
  • Page 23 CIRCUIT DIAGRAM - FRONT & KEY BOARD...
  • Page 24 PCB LAYOUT - CDC KEY BOARD PCB LAYOUT - USB JACK BOARD (TOP VIEW) PCB LAYOUT - USB JACK BOARD (BOTTOM VIEW)
  • Page 25 ELECTRICAL PARTS - FRONT BOARD ELECTRICAL PARTS - CD KEY BOARD 1405 9940 000 01243 TACT SWITCH 1429 9940 000 01243 TACT SWITCH 1406 9940 000 01243 TACT SWITCH 1430 9940 000 01243 TACT SWITCH 1408 9940 000 01243 TACT SWITCH 1431 9940 000 01243 TACT SWITCH...
  • Page 26 7A-1 7A-1 BLOCK DIAGRAM TUNER BOARD ECO 6 Systems Vcc1 buffer ampl. Stab Stab Discriminator FM-RF FM-IF 1 FM-IF 2 (MPX) Vcc2 1101 Loop (1102) LF filter 10,7 MHz 10,7 MHz 10,7 MHz 1120 left left Stereo right right Det. Decoder Frontend Mixer...

  • Page 27: Tuner Board Eco6 / Systems Non Cenelec

    7A-2 7A-2 1101 A1 1102 B1 1103 F2 1120 E14 1130 A2 TUNER BOARD ECO6 1131 B2 / SYSTEMS NON CENELEC 1132 G13 2101 B3 VERSION PROGRAMMING COMPONENTS 2102 B1 1101 2103 C7 2105 2104 B3 AM-IF1 1130 2105 A2 100n 5111 450kHz...

  • Page 28: Tuner Adjustment Table

    7A-3 7A-3 1101 A6 1120 A4 1132 A5 2128 C4 2138 C2 3142 D2 5110 B3 5114 A2 5123 D5 7112 C1 9104 B5 9107 D4 TUNER ADJUSTMENT TABLE ( ECO6 FM/MW- and FM/MW/LW - versions with AM-frame aerial ) 1102 B6 1130 B5 2106 C5...
  • Page 29 7B-1 7B-1 BLOCK DIAGRAM ECO6 Tuner Board SYSTEMS CENELEC version: TABLE OF CONTENTS Blockdiagram..............7B-1 Schematic Diagram............7B-2 Component Layout ............7B-3 Adjustment table .............7B-3 Electrical Partslist............7B-4...

  • Page 30: Tuner Board Eco6

    7B-2 7B-2 1101 A2 5121 E11 1102 B1 5122 H5 1103 E2 5123 G5 1110 B2 6105-1 E4 VERSION PROGRAMMING COMPONENTS 1120 E14 6105-2 G6 TUNER BOARD ECO6 1130 A2 6106 D4 / SYSTEMS-CENELEC 1131 C2 6107 G13 VERSION AM-IF1 1132 F13 6120 C13 6120...

  • Page 31: Tuner Board Eco6 Systems - Cenelec

    7B-3 7B-3 1101 B5 1110 B4 1131 C5 2107 B3 2133 C1 2162 A4 5102 C4 5110 A2 5114 A2 5121 B2 7104 C4 9101 A2 9104 B1 9107 B4 9110 A4 TUNER ADJUSTMENT TABLE ( ECO6 Cenelec FM/MW - and FM/MW/LW - versions with AM-frame aerial ) 1102 B5 1120 A4 1132 A4...

  • Page 32: Tape Board

    TAPE BOARD TABLE OF CONTENTS Remark: The chapter 8 for reference only , the whole Tape Board Ass'y can be orderd with 12nc: 9940 000 04485 PCB Layout Top View ............8-2 PCB Layout Bottom View ..........8-2 Circuit Diagram ..............8-3 Electrical Parts List ............
  • Page 33 PCB LAYOUT - TAPE BOARD (TOP VIEW) PCB LAYOUT - TAPE BOARD (BOTTOM VIEW)

  • Page 34: Circuit Diagram - Tape Board

    CIRCUIT DIAGRAM - TAPE BOARD...
  • Page 35 ELECTRICAL PARTS - CASS DECK BOARD 3778 9940 000 01249 FUSE RES. 6.8Ω 1/4W +/-5% 5703 9940 000 01251 IFT OSC COIL 100KHZ 7610 5322 209 11306 HEF4094BT 7710 9940 000 01248 IC HF4952 7720 9322 140 00668 IC SM AN7323S (MATJ) 7730 9940 000 01248 IC HF4952...

  • Page 36: Mains Board

    MAINS BOARD TABLE OF CONTENTS PCB - Layout Diagram FWM372 ........6-2 Circuit Diagram FWM372 ..........6-3 PCB - Layout Diagram FWM572 ........6-4 Circuit Diagram FWM572 ..........6-5 Electrical Parts List ............6-6...
  • Page 37 PCB LAYOUT - MAINS BOARD_FWM372...
  • Page 38 CIRCUIT DIAGRAM - MAINS BOARD_FWM372...
  • Page 39 PCB LAYOUT - MAINS BOARD_FWM572...
  • Page 40 CIRCUIT DIAGRAM - MAINS BOARD_FWM572...
  • Page 41 ELECTRICAL PARTS - MAINS BOARD_FWM372 ELECTRICAL PARTS - MAINS BOARD_FWM572 1200 9940 000 01223 FUSE RADIAL T5A 250V 1901 9940 000 01347 AC SOCKET H 2P 2.5A 250V 1202 9940 000 01349 FUSE RADIAL T1.6A 250V /12/05 1902 9940 000 02821 SWITCH W/O NUT /55 1905 9940 000 01223...

  • Page 42: Power Board

    11-1 11-1 POWER BOARD TABLE OF CONTENTS PCB Layout Diagram-FWM372 ........11-2 Circuit Diagram-FWM372 ..........11-3 PCB Layout Diagram-FWM572 ........11-4 Circuit Diagram Part1-FWM572 ........11-5 Circuit Diagram Part2-FWM572 ........11-6 Electrical Parts List ............11-7...
  • Page 43 11-2 11-2 LAYOUT DIAGRAM - POWER BOARD_FWM372...
  • Page 44 11-3 11-3 CIRCUIT DIAGRAM - POWER BOARD_FWM372 0300 D10 6303 E12 1300 E9 6304 A11 1301 B9 6305 A6 1302 A1 6306 B14 3395 P2001 30-70W 1304 C1 6307 B13 +12V Regulator 1305 D3 6308 C11 +12V_CDR CDR ONLY 0R22 1306 D1 6309 B4 3313...
  • Page 45 11-4 11-4 LAYOUT DIAGRAM - POWER BOARD_FWM572...
  • Page 46 11-5 11-5 CIRCUIT DIAGRAM - POWER BOARD_FWM572 PART 1...
  • Page 47 11-6 11-6 CIRCUIT DIAGRAM - POWER BOARD_FWM572 PART 2...
  • Page 48 11-7 11-7 ELECTRICAL PARTS - POWER BOARD_FWM372 ELECTRICAL PARTS - POWER BOARD_FWM572 1305 9940 000 01356 FUSE RADIAL T2.5A/250V 1280 9940 000 01356 FUSE RADIAL T2.5A/250V 1307 9940 000 01219 SPK JACK (RD/BLK/BLK/RD) CON8 9940 000 01219 SPK JACK (RD/BLK/BLK/RD) 5300 9940 000 01217 AIR COIL 6X18.5T (0.5MM)

  • Page 49: Af9 Board

    12-1 12-1 BRIEF INTRODUCTION OF THE AF9 BOARD The AF9 Board consists of the following features : a. TDA7468D IC TDA7468D IC (7501) which includes functions such as source selection, loudness control, dynamic bass control, treble control, volume control and muting function. Sound features such as ALC, DBB, DSC and IS are controllable via I C Bus from the microprocessor.

  • Page 50: Chip Layout

    12-2 12-2 CHIP LAYOUT This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list. 3139 113 3435 pt4 dd wk0142...

  • Page 51: Component Layout

    12-3 12-3 COMPONENT LAYOUT This assembly drawing shows a summary of all possible versions. For components used in a specific version see schematic diagram and respective parts list. 3139 113 3435 pt4 dd wk0142...
  • Page 52 12-4 12-4 SOURCE SELECTION & SOUND PROCESSING CIRCUIT...
  • Page 53 12-5 12-5 HEADPHONE AMPLIFIER & I C EXPANDER CIRCUIT...
  • Page 54 12-6 12-6 DIGITAL OUT & INTERCONNECTION CIRCUIT 1100 F6 T054 C1 1201 C1 T055 C1 1202 E1 T056 C1 1203 C1 T057 C1 1204 E1 T058 D1 3412 1205 C1 T059 D1 UV55 UX50 WE00 UE55 CW00 1206 C1 T060 D1 FE-BT-VK-N 4909 1521...
  • Page 55 12-7 12-7 ELECTRICAL PARTS - AF9 BOARD 1501 9940 000 01221 RCA JACK 2P 3627 9940 000 01358 FUSE RES.10Ω 1/4W +/-5% 3821 9940 000 01358 FUSE RES.10Ω 1/4W +/-5% 7202 9940 000 01357 IC LM78L05-AC 7403 4822 209 17345 IC M62320FP 7501 9322 150 74668...

  • Page 56: Mechanical Exploded View

    13-1 13-1 MECHANICAL EXPLODED VIEW...
  • Page 57 13-2 13-2 MECHANICAL & ACCESSORIES PARTS ELECTRICAL PARTS - MISCELLANEOUS FWM372 FWM572 DESCRIPTION 9940 000 01292 9940 000 04503 CASS LENS BOTTOM L 9940 000 01257 9940 000 01257 11P FFC 1.25MM L=260MM 9940 000 01291 9940 000 04502 CASS LENS BOTTOM R 9940 000 01262 9940 000 01262 19P FFC 1.25MM L=280MM...

  • Page 58: Revision List

    14-1 REVISION LIST 1.0 Manual 3141 785 30860 Initial Service Manual released. 1.1 Manual 3141 785 30861 In this version, the Chapter6 - Front Board & Key Board are added.

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