Philips-MC-145-Service-Manual(1) 电路图 维修手册.pdf

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1、Version 1.4 MC145 3141 785 30684 Micro System All version Published by YT 0832 Service Audio Printed in The Netherlands Subject to modification Copyright 2006 Philips Consumer Electronics B.V. Eindhoven, The Netherlands All rights reserved. No part of this publication may be reproduced, stored in a

2、retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. Repair Policy of PCBs.1-1 Technical Specification . 2-1 Service Measurement Setup . 2-2 Alignment Instruction . 2-3 Connections and Controls .3-1.

3、3-3 Disassembly Instruction .4-1.4-2 Set Block Diagram . 5-1 Set Wiring Diagram . 5-2 Display Board Circuit diagram . 6-1 Layout diagram . 6-2 Combi Board(Main Board) Circuit diagram (Tuner/Tape/Amp part) . 7-1 Circuit diagram (CD part) . 7-2 Layout diagram - top view . 7-3 Layout diagram - bottom v

4、iew . 7-4 Exploded View Diagram . 8-1 Mechanical Partslist . 8-2 Accessories and Electrical Partslist .9-1.9-3 Revision . 10-1 TABLE OF CONTENTS RadioFans.CN 收音机爱 好者资料库 REPAIR POLICY OF PCBS 1-1 VERSION VARIATIONS: Type /Versions: Features Board in used: MC145 Service policy DISPLAY BOARD MAIN BOARD

5、 (COMBI BOARD) * TIPS : C - Component Lever Repair. M - Module Lever Repair - Used /05/128559/61/ Feature diffrence C Type /Versions: MC145 39/58/97/73/ C CC /05/128559/39/58/97/738/7/61/ C C DISPLAY BOARDCCC 87/ RadioFans.CN 收音机爱 好者资料库 2 - 1 SPECIFICATIONS GENERAL: Mains voltage /37 : 120V /55/85/9

6、8 : 110 / 220V switchable /12/61/79/93 : 220 240V Mains frequency : 50/60 Hz Power consumption : 20W max. 3W at standby Dimension center unit : 168 x 224.5 x 214.5 mm Dimension speaker : 130 x 224.5 x 213 mm TUNER: FM Tuning range : 87.5 - 108 MHz IF Frequency : 10.7 MHz ? 20kHz Sensitivity at 26sb

7、S/N : 45 dB IF rejection : 50 dB Image rejection : 20 dB Distortion : 20 dB MW Tuning range /37/55 : 530 -1700 kHz (10 kHz grid) others : 531 -1602 kHz (9 kHz grid) Grid : 9/10 kHz IF Frequency : 450 kHz ? 3kHz Aerial input : Inner bar antenna Sensitivity at 26sb S/N : 18 dB IF rejection : 45 dB Ima

8、ge rejection : 30 dB Distortion : 5% AMPLIFIER: Output power : 2 x 2 W RMS Speaker impedance : 8 ohm Frequency response Within ? 3dB : 60Hz 16 kHz Bass Boost ON : 6dB ? 3dB at 120Hz Headphone output : 32 mW ? 2dB at 32 ? CASSETTE RECORDER: Number of tracks : 2 x 2 stereo Tape speed : 4.76 cm/sec +2.

9、5/-1.5% Wow and flutter : 0.35% DIN Fast-wind/rewind time : 35 dB with type 1 tape COMPACT DISC: No. of programming track : 20 Frequency response Within ? 3 dB : 63 Hz 16 kHz Signal/Noise ratio : 50 dB/A-weighted Distortion at 1 kHz : 25 dB RadioFans.CN 收音机爱 好者资料库 2 - 2 SERVICE MEASUREMENT Bandpass

10、250Hz-15kHz e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT RF Generator e.g. PM5326 S/N and distortion meter e.g. Sound Technology ST1700B Tuner FW Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Ri=50 Bandpass 250Hz-15kHz e.g. 7122 707 48001

11、 LF Voltmeter e.g. PM2534 DUT S/N and distortion meter e.g. Sound Technology ST1700B Frame aerial e.g. 7122 707 89001 Tuner AM (MW,LW) To avoid atmospheric interference all AM-measurements have to be carried out in a Faradays cage. Use a bandpass filter (or at least a high pass filter with 250kHz) t

12、o eliminate hum (50Hz, 100Hz). RF Generator e.g. PM5326 Ri=50 L R LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion meter e.g. Sound Technology ST1700B DUT CDRECORDER Use Audio Signal Disc SBC429 4822 397 30184 (replaces test disc 3) Use Universal Test Cassette Fe SBC420 4822 397

13、30071 L R LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion meter e.g. Sound Technology ST1700B DUT LF Generator e.g. PM5110 Ri=50 2 - 3 AM I.F. ALIGNMENT 1. Set the POWER BUTTON to POWER ON. 2. Set the FUNCTION SELECTOR SWITCH to RADIO & AM BAND. 3. Connect a SWEEPSCOPE OUTPUT to

14、 AM antenna terminal. 4. Connect a SWEEPSCOPE INPUT to pin 13 of IC1 through a 1uf capacitor and ground. STEPSET SIGNALSET DIALADJUSTADJUST FOR 1450KHzGANG OPENT1(AM IF) CENTER & MAXIMUM OUTPUT AM R.F. ALIGNMENT 1. Connect an RF generator to a standard radiating loop. 2. Connect a SCOPE and VTVM acr

15、oss the speaker output. STEPSET SIGNALSET DIALADJUSTADJUST FOR 1530KHzT2 (AM OSC COIL) 21700KHzCT1MAXIMUM 3612KHz612KHz (AM SENS COIL)OUTPUT 41404KHz1404KHzCT3 (AM SENS TRIM.) 5REPEAT STEPS 3 AND 4 TO OBTAIN BEST TRACKING. FM I.F. ALIGNMENT 1. Set the POWER SWITCH to POWER ON. 2. Set the FUNCTION SE

16、LECTOR to RADIO & FM BAND. 3. Connect a SWEEPSCOPE OUTPUT to pin5 of IC001 through a 20pF capacitor and ground. 4. Connect a SWEEPSCOPE INPUT to pin16 or 17 of IC001 through a 1uf capacitor and ground. STEPSET SIGNALSET DIALADJUSTADJUST FOR 110.7MHzGANG OPENCHECK MAX.AMPLITUDE BALANCED CURVE FM R.F.

17、 ALIGNMENT 1. Connect an RF generator to the FM antenna terminal and ground. 2. Connect a SCOPE & VTVM across the speaker output. STEPSET SIGNALSET DIALADJUSTADJUST FOR 187.5MHzL3 (FM OSC COIL) 2108MHzCHECKMAXIMUM 390MHz90MHzL4 (FM RF COIL)OUTPUT 4106MHz106MHzCT2 5REPEAT STEPS 3 AND 4 TO OBTAIN MAX

18、ADJUST. CASSETTE ALIGNMENT 1. Set the FUNCTION SELECTOR BUTTON TO TAPE. 2. Connect a Scope & VTVM across the speaker output. 3. Insert the 8KHz tape in to cassette deck and push play BUTTON. 4. ADJUST HEAD for speaker maximum output. MOTOR SCREWDRIVER SCREWDRIVER ADJUSTING SCREW CD ALIGNMENT Auto al

19、ignment. GANG OPEN GANG CLOSED GANG OPEN GANG CLOSED ALIGNMENT INSTRUCTION xx3 - 1 CONNECTION AND CONTROLS ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 3 - 2 CONNECTION AND CONTROLS ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

20、 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? xx ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?+?-? ? ? ? ? ? ? ? ? ?+?-? ? ? ? ? FM ANT AC 110V 220V ? ? ? ? ? ? 3 - 3 CONNECTION AND CONTROLS 4 - 1 DISASSEMBLY INSTRUCTION A1A2 A3 A4 A. Remove Top C

21、abinet A1: Remove screws T3x8 (2 pcs) A2: Remove screws T3x8 (2 pcs) A3: Remove screws T3x10 (2 pcs) A4: Remove screws T3x10 (2 pcs) B. Remove CD Module B1: Remove screws T3x10 (2 pcs) B1 C. Remove CD Module Cover C1: Remove screws T3x10 (6 pcs) C1 4 - 2 DISASSEMBLY INSTRUCTION 4 - 2 E1 D1 D. Remove

22、 CDM D: Remove special screws (4 pcs) E. Remove Back Cabinet E1: Remove screws T3x8 (2 pcs) F2 F1 F3 F. Remove Cassette Board Assy and Tape Deck F1: Remove screw T3x8 (1 pc) F2: Remove screw M3x6 (1 pc) F3: Remove screws T3x10 (4 pcs) G1 G. Remove PCB Bracket G1: Remove screws T3x8 (3 pcs) H1 H. Rem

23、ove Front PCB Assembly H1: Remove screws T3x8 (14 pcs) 5 - 15 - 1 SET BLOCK DIAGRAM 5 - 25 - 2 MAIN PCB CN3 2NC 6NC CN7 CN4 CN101 CN103 401NC CW4 C0N401 BCPYALPSID FM ANT CW6 TAPE PCB CN3 TRANSFOMER AC2AC1 KCEDDC HCTIWSROODDC KCEDETTESSAC MOTOR 3WC HEADPHONE PCB SET WIRING DIAGRAM 6 - 16 - 1 CIRCUIT

24、 DIAGRAM - DISPLAY BOARD 6 - 26 - 2 LAYOUT DIAGRAM - DISPLAY BOARD COMPONENT SIDE COPPER SIDE CIRCUIT DIAGRAM - COMBI BOARD (TUNER/TAPE/AMP) 7 - 1 7 - 1 7 - 27 - 2 CIRCUIT DIAGRAM - COMBI BOARD (CD part) 7 - 37 - 3 LAYOUT DIAGRAM - COMBI BOARD (TOP VIEW) 7 - 47 - 4 LAYOUT DIAGRAM - COMBI BOARD (BOTT

25、OM VIEW) 8 - 18 - 1 EXPLODED VIEW DIAGRAM 8 - 2 MECHANICAL PARTS LIST All other versionsfor /37 only 19965 000 390829940 000 04833TOP CAB 29965 000 390839940 000 04834FRONT CAB 39965 000 39825REAR CAB (/12, /61) 39965 000 39826REAR CAB (/79) 39965 000 39106REAR CAB (/93) 39965 000 39084REAR CAB (/55

26、/85/98) 39940 000 04835REAR CAB (/37) 49965 000 390859940 000 04836CASS BRACKET 59965 000 390869940 000 04837DISPLAY BRACKET 69965 000 390879940 000 04838BTN BRACKET 79965 000 390889940 000 04839TUN BOTTON BKT 89965 000 390899940 000 04841TUN BKT 99940 000 043899940 000 04389CASS PRESS PLATE 109965

27、000 390909940 000 04842CASS DOOR 119965 000 390919940 000 04843CD DOOR (D.GREY) 129940 000 043929940 000 04392LASER COVER (FOR SANYO CD) 139940 000 043939940 000 04393MAGNET CAP BOTTOM 149940 000 043949940 000 04394CD MAGNET HOLDER 159940 000 043959940 000 04395DUSTPREVENTION COVER 169940 000 048459

28、940 000 04845DAMPER GEAR 179940 000 048469940 000 04846DAMPER GEAR HOLDER 189965 000 390279940 000 04847CD DOOR-GEAR (2) 199965 000 390289940 000 04848GEAR HOLDER (2) 209965 000 390929940 000 04849CD KEY 219965 000 390939940 000 04851VOL KEY 229965 000 390949940 000 04852DBB KNOB 239965 000 39095994

29、0 000 04858VOL KEY RING 249965 000 390969940 000 04859TRIM RING 259965 000 390979940 000 0485324-TUN-BTN 269965 000 390989940 000 04844CASS KNOB LID 279965 000 390999940 000 04854CASS KNOB-KIT 289965 000 391009940 000 04855DISPLAY LENS 299965 000 391019940 000 04856CASS LENS 309940 000 044099940 000

30、 04409LCD LENS 319965 000 391029940 000 04857CD DOOR LENS 359940 000 005059940 000 00505CD DAMPER 658 TA 30 369940 000 005069940 000 00506CD DAMPER 658 TB 40 389940 000 043789940 000 04378MAGNET CAP TOP PLATE 419940 000 041039940 000 04103CASS DOOR SPRING (SMALL) 429940 000 043799940 000 04379CASSET

31、TE KEY COVER SPRING 439940 000 036749940 000 03674CD DOOR SPRING 669940 000 043749940 000 04374F/CASS DECK CS-21SC-820DT 679940 000 036699940 000 03669CD MECHANISM DA11VF 689940 000 043759940 000 04375MAGNET 30X16MM H=5MM 9 - 1 ACCESSORIESVersions 9965 000 39024REMOTE CONTROL ASSY /12 9940 000 04334

32、REMOTE CONTROL ASSY /37, /55, /61, /79, /85, /93, /98 9965 000 39025SPEAKER BOX ASSY (L/R)single /12 9940 000 04828SPEAKER BOX ASSY (L/R)single /37 9940 000 04335SPEAKER BOX ASSY (L/R)single /55, /61, /79, /93, /98 9965 000 39081SPEAKER BOX ASSY (L/R)single /85 9940 000 01688AC CORD SET UL /37 9940

33、000 03633AC CORD SET VDE /12, /55, /85, /98 9940 000 04411AC CORD SET SAA /79 9965 000 39105AC CORD SET CCC /93 9965 000 39076AC CORD SET KS /61 ELECTRICAL PARTS LIST DISPLAY BD ASSYVersions 9940 000 04361DISPLAY BD ASSY all D4019940 000 04363SMD DIODE PMLL4148L LED19940 000 04364LED LAMP 5MM (BLUE)

34、 Q4019965 000 20152MMBT3904LT1 SMD SOT23 Q4029940 000 04362TRANSISTORS PSS8050D IC4019940 000 04366IC ET8861S IR4019940 000 04367OPTIC SENSER FM-6038TM2-5AN JK6019940 000 04369PHONE JACK TC38-063-05-01 LCD4019940 000 04365LCD DISPLAY SDH-DC1373-TP-1 SW4019940 000 04368TACT SWITCH 6X6MM H=5MM SW40299

35、40 000 04368TACT SWITCH 6X6MM H=5MM SW4039940 000 04368TACT SWITCH 6X6MM H=5MM SW4049940 000 04368TACT SWITCH 6X6MM H=5MM SW4059940 000 04368TACT SWITCH 6X6MM H=5MM SW4069940 000 04368TACT SWITCH 6X6MM H=5MM SW4079940 000 04368TACT SWITCH 6X6MM H=5MM SW4089940 000 04368TACT SWITCH 6X6MM H=5MM SW4099

36、940 000 04368TACT SWITCH 6X6MM H=5MM SW4109940 000 04368TACT SWITCH 6X6MM H=5MM SW4119940 000 04368TACT SWITCH 6X6MM H=5MM SW4129940 000 04368TACT SWITCH 6X6MM H=5MM SW4139940 000 04368TACT SWITCH 6X6MM H=5MM SW4149940 000 04368TACT SWITCH 6X6MM H=5MM SW4159940 000 04368TACT SWITCH 6X6MM H=5MM RECORD BD ASSYVersions 9940 000 04371RECORD BD ASSY all D139940 000 04363SMD DIODE PMLL4148L Q369965 000 20152MMBT