Philips FWM372 SERIES Service Manual

[Page 1] Philips FWM372 Series

CLASS 1 LASER PRODUCT Service Service Service Service Service © 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 tran...

[Page 2] Philips FWM372 Series

1-2 LOCATION OF PCBS AF9 Board CD Key Board Front Board Power Board Mains Board ETF7 Tuner Module Board Cass /05 /12 /55 Karaoke News x RDS x Rotary Encoder (volume control) x x x Jog Shuttle Voltage Selector Aux Input x x x x Digital Output He...

[Page 3] Philips FWM372 Series

1-3 SPECIFICATION GENERAL: Mains voltage : 230V ± 10% /05/12 127V ± 15% / 240V ± 10% /55/98 Mains frequency : 50/60Hz Power consumption : < 1W at ECO Standby /05/12 < 15W Standby w/Clock on < 60W < 110W Active /FWM372 Active /FWM...

[Page 4] Philips FWM372 Series

1-4 LF Generator e.g. PM5110  Recorder Use Universal Test Cassette CrO2 SBC419 4822 397 30069 LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion meter e.g. Sound Technology ST1700B L R DUT or Universal Test Cassette Fe SBC420 ...

[Page 5] Philips FWM372 Series

1-5 Service Tools: Universal Torx driver holder .................................4822 395 91019 Torx bit T10 150mm ...........................................4822 395 50456 Torx driver set T6-T20 .........................................4822 395 501...

[Page 6] Philips FWM372 Series

1-6 GB WARNING All ICs and many other semi-conductors are susceptible to electrostatic discharges (ESD). Careless handling during repair can reduce life drastically. When repairing, make sure that you are connected with the same potential as the mas...

[Page 7] Philips FWM372 Series

1-7 INFORMATION ABOUT LEAD-FREE SOLDERING Philips CE is producing lead-free sets from 1.1.2005 onwards. IDENTIFICATION: Regardless of special logo (not always indicated) one must treat all sets from 1 Jan 2005 onwards, according next rules:...

[Page 8] Philips FWM372 Series

PREPARATIONS AND CONTROLS 1-8 Preparations Rear connections The type plate is located at the rear of the system. A Power – Before connecting the AC power cord to the wall outlet, ensure that all other connections have been made. – If your system ...

[Page 9] Philips FWM372 Series

PREPARATIONS AND CONTROLS 1-9 Controls Controls on the system and remote control 1 STANDBY-ON/ ECO POWER (B) – switches the system on or to Eco Power standby/normal standby with clock display. 2 DISC 1/2/3 (CD 1/2/3) – to select a disc tray for ...

[Page 10] Philips FWM372 Series

PREPARATIONS AND CONTROLS 1-10 Controls Notes for remote control: – First, select the source you wish to control by pressing one of the source select keys on the remote control (CD or TUNER, for example). – Then select the desired function ( … ...

[Page 11] Philips FWM372 Series

MAINTENANCE AND TROUBLESHOOTING 1-11 Maintenance Cleaning the Cabinet Use a soft cloth slightly moistened with a mild detergent solution. Do not use a solution containing alcohol, spirits, ammonia or abrasives. Cleaning Discs When a disc becomes di...

[Page 12] Philips FWM372 Series

2-1 2-1 DISMANTLING INSTRUCTIONS Dismantling of the Cassette Cover 1) Loosen 4 screws to remove the Cover Top of the set. 2) Loosen 2 screws to remove the Panel Left and 2 screws to remove the Panel Right of the set. 3) Slide out the CDC Tray as sho...

[Page 13] Philips FWM372 Series

2-2 2-2 Dismantling of the ETF Tape Module 1) Remove 8 screws G as indicated to loosen the ETF Tape Module. Dismantling of Rear PortionDismantling of the Front Board 1) Remove 6 screws C and 7 screws D as indicated to loosen the Fr...

[Page 14] Philips FWM372 Series

2-3 2-3 Service pos D Service pos A Service pos C Repair Hints 3) During repair it is possible to disconnect the Tape board and CDC Module completely unless the fault is sus- pected to be in that area. This will not affect the performance of the r...

[Page 15] Philips FWM372 Series

3-1 3-1 Various other Tests Activated with ACTION TEST 5 EEPROM FORMAT Load default data. Display shows "NEW" for 1 second. Caution! All presets from the customer will be lost!! Disconnect mains cord LEAVE SERVICE TESTPROGRAM 6 9 to Exit ...

[Page 16] Philips FWM372 Series

4-1 SET BLOCK DIAGRAM - FWM372 4-1 ...

[Page 17] Philips FWM372 Series

4-2 SET BLOCK DIAGRAM - FWM572 4-2 ...

[Page 18] Philips FWM372 Series

SET WIRING DIAGRAM - FWM372 5-1 5-1 ...

[Page 19] Philips FWM372 Series

SET WIRING DIAGRAM - FWM572 5-2 5-2 ...

[Page 20] Philips FWM372 Series

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 ......................

[Page 21] Philips FWM372 Series

6-2 6-2 PCB LAYOUT - FRONT BOARD (TOP VIEW) ...

[Page 22] Philips FWM372 Series

PCB LAYOUT - FRONT BOARD (BOTTOM VIEW) 6-3 6-3 ...

[Page 23] Philips FWM372 Series

6-4 6-4 CIRCUIT DIAGRAM - FRONT & KEY BOARD ...

[Page 24] Philips FWM372 Series

6-5 6-5 PCB LAYOUT - USB JACK BOARD (TOP VIEW) PCB LAYOUT - USB JACK BOARD (BOTTOM VIEW) PCB LAYOUT - CDC KEY BOARD ...

[Page 25] Philips FWM372 Series

6-6 6-6 ELECTRICAL PARTS - FRONT BOARD 1405 9940 000 01243 TACT SWITCH 1406 9940 000 01243 TACT SWITCH 1408 9940 000 01243 TACT SWITCH 1410 9940 000 01243 TACT SWITCH 1411 9940 000 01243 TACT SWITCH 1412 9940 000 01243 TACT SWITCH 1413 9940 000 01243...

[Page 26] Philips FWM372 Series

7A-17A-1 1 FM Osc. FM Mixer AM Mixer AM Osc. AM IF IF1 IF2 FM Det. AM Det. 3393733 RADIO IC TEA 5757H TUNER BOARD ECO 6 Systems 1018 11 14 15 24 right right left left stereo VCO 4140 36 193244 25 Stereo Decoder AFC AFC + AFC - 4 4 AGC Pre- scaler...

[Page 27] Philips FWM372 Series

7A-2 7A-2 ECO6 Sys-non Cenelec, 000911 1101 A1 1102 B1 1103 F2 1120 E14 1130 A2 1131 B2 1132 G13 2101 B3 2102 B1 2103 C7 2104 B3 2105 A2 2106 F3 2107 F4 2119 H6 2120 G6 2124 H6 2125 H6 2126 ...

[Page 28] Philips FWM372 Series

7A-37A-3 VARICAP ALIGNMENT FM RF FM IF VCO AM IF AM RF 3) 108MHz 87.5MHz (65.81MHz) 87.5MHz (65.81MHz) 87.5MHz (65.81MHz) 279kHz 153kHz 1602kHz 531kHz 5130 check 5122 check 5123 check 8V ±0.2V 4.3V ±0.5V (1.2V ±0.5V) 8V ±0.2V 1.1V ±0.4V 8V ±...

[Page 29] Philips FWM372 Series

7B-1 7B-1 1 AM Mixer AM Osc. AM IF IF1 IF2 FM Det. AM Det. 37 33 RADIO IC TEA 5762 TUNER BOARD ECO 6 Systems Cenelec 1018 11 14 39 15 24 right AM/FM right left left stereo VCO 4140 36 193244 25 Stereo Decoder AFC AFC + AFC - 4 4 AGC Pre- scaler ...

[Page 30] Philips FWM372 Series

7B-2 7B-2 MIXER varicap FM FRONTEND GND PRE- SCALER MULTI- PLEXER VSTABA AM-IF MONO/ XTAL AGC CONTROL OSC AM DET AM OSC AGC VCC2 AGC PUMP AM MIXER DECODER CHARGE FM IF1 FRONTEND AM VSTABB DET FM CONTROL FILTER AM IF AM DET STEREO STEREO FM IF2 RIPPL...

[Page 31] Philips FWM372 Series

7B-3 7B-3 98MHz Waverange Input frequency Input Tuned to Adjust Output Scope/Voltmeter VARICAP ALIGNMENT FM - VCO FM RF (channel separation) AM IF AM RF 3) 108MHz 87.5MHz check check 8V ±1.2V 1.6V ±0.5V 8V ±0.2V 6.9V ±0.2V 1.1V ±0.4V 152kHz ...

[Page 32] Philips FWM372 Series

TAPE BOARD TABLE OF CONTENTS PCB Layout Top View ...................................................... 8-2 PCB Layout Bottom View ................................................ 8-2 Circuit Diagram ....................................................

[Page 33] Philips FWM372 Series

8-2 8-2 PCB LAYOUT - TAPE BOARD (TOP VIEW) PCB LAYOUT - TAPE BOARD (BOTTOM VIEW) ...

[Page 34] Philips FWM372 Series

8-3 8-3 CIRCUIT DIAGRAM - TAPE BOARD ...

[Page 35] Philips FWM372 Series

8-4 8-4 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 0124...

[Page 36] Philips FWM372 Series

MAINS BOARD TABLE OF CONTENTS PCB - Layout Diagram FWM372 ..................................... 6-2 Circuit Diagram FWM372 ................................................ 6-3 PCB - Layout Diagram FWM572 ..................................... 6-4 Circ...

[Page 37] Philips FWM372 Series

9-2 9-2 PCB LAYOUT - MAINS BOARD_FWM372 ...

[Page 38] Philips FWM372 Series

9-3 9-3 CIRCUIT DIAGRAM - MAINS BOARD_FWM372 ...

[Page 39] Philips FWM372 Series

9-4 9-4 PCB LAYOUT - MAINS BOARD_FWM572 ...

[Page 40] Philips FWM372 Series

9-5 9-5 CIRCUIT DIAGRAM - MAINS BOARD_FWM572 ...

[Page 41] Philips FWM372 Series

9-6 9-6 ELECTRICAL PARTS - MAINS BOARD_FWM372 1200 9940 000 01223 FUSE RADIAL T5A 250V 1202 9940 000 01349 FUSE RADIAL T1.6A 250V /12/05 1202 9940 000 01231 FUSE RADIAL T1.25A 250V /55 1204 9940 000 01347 AC SOCKET 2P 2.5A 250V 1205 9940 000 01351 FU...

[Page 42] Philips FWM372 Series

POWER BOARD TABLE OF CONTENTS PCB Layout Diagram-FWM372 ..................................... 11-2 Circuit Diagram-FWM372 .............................................. 11-3 PCB Layout Diagram-FWM572 ..................................... 11-4 Circuit...

[Page 43] Philips FWM372 Series

11-2 11-2 LAYOUT DIAGRAM - POWER BOARD_FWM372 ...

[Page 44] Philips FWM372 Series

11-3 11-3 CIRCUIT DIAGRAM - POWER BOARD_FWM372 NC2 VCC NC4 INGND PWRGND STDBY VOUTp NC3 MUTE IN NC1 VOUTn NC2 VCC NC4 INGND PWRGND STDBY VOUTp NC3 MUTE IN NC1 VOUTn t F336 H1 F337 G4 F338 G1 F340 G9 F341 H5 F342 D3 F343 E4 F344 D6 F345 I14 F346 H7 F3...

[Page 45] Philips FWM372 Series

11-4 11-4 LAYOUT DIAGRAM - POWER BOARD_FWM572 ...

[Page 46] Philips FWM372 Series

CIRCUIT DIAGRAM - POWER BOARD_FWM572 PART 1 11-5 11-5 ...

[Page 47] Philips FWM372 Series

CIRCUIT DIAGRAM - POWER BOARD_FWM572 PART 2 11-6 11-6 ...

[Page 48] Philips FWM372 Series

ELECTRICAL PARTS - POWER BOARD_FWM372 1305 9940 000 01356 FUSE RADIAL T2.5A/250V 1307 9940 000 01219 SPK JACK (RD/BLK/BLK/RD) 5300 9940 000 01217 AIR COIL 6X18.5T (0.5MM) 5301 9940 000 01217 AIR COIL 6X18.5T (0.5MM) 5302 9940 000 01217 AIR COIL 6X18....

[Page 49] Philips FWM372 Series

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 mut...

[Page 50] Philips FWM372 Series

CHIP LAYOUT 12-2 12-2 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] Philips FWM372 Series

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] Philips FWM372 Series

12-4 12-4 SOURCE SELECTION & SOUND PROCESSING CIRCUIT ...

[Page 53] Philips FWM372 Series

12-5 12-5 HEADPHONE AMPLIFIER & I 2 C EXPANDER CIRCUIT 1K ...

[Page 54] Philips FWM372 Series

DIGITAL OUT & INTERCONNECTION CIRCUIT 12-6 12-6 F 1100 F6 1201 C1 1202 E1 1203 C1 1525 B5 FRONT +5V6 SRDT QE10 JW00 P CD_SH_STR CLIP FROM/TO HP_DET 12345678 CD_SH_STR Updated on 15 SEPT 2003 P SILD +11V_D -VKK GND_D 2.9V A B C D E D TU_DATA GND...

[Page 55] Philips FWM372 Series

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 I...

[Page 56] Philips FWM372 Series

13-1 13-1 MECHANICAL EXPLODED VIEW ...

[Page 57] Philips FWM372 Series

13-2 13-2 ELECTRICAL PARTS - MISCELLANEOUS 9940 000 01257 9940 000 01257 11P FFC 1.25MM L=260MM 9940 000 01262 9940 000 01262 19P FFC 1.25MM L=280MM 9940 000 01362 9940 000 01362 8P FFC1.25MM L=160MM 9940 000 01363 9940 000 01363 7P FFC1.25MM L=180M...

[Page 58] Philips FWM372 Series

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. ...