Philips-MCD-137-Service-Manual(1) 电路图 维修手册.pdf
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1、Version 1.0 MCD137 3141 785 32720 DVD Micro Theater -93/98 Published by LX 0822 Service Audio Subject to modification Copyright 2008 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 transm
2、itted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. CONTENTS Technical specification .1-2 Service measurement setup.1-3 Service aids .1-4 Instructions on CD playability .2-1. 2-2 Block diagram .3-1 Wiring diagram .4-1 Displa
3、y board Circuit diagram .5-1 Layout diagram .5-2 Rectifier board Circuit diagram .6-1 Layout diagram .6-2 DVD board Circuit diagram .7-1.7-5 Layout diagram .7-6 Exploded view diagram .8-1 Service parts list .9-1 RadioFans.CN 收音机爱 好者资料库 SYSTEM Power supply . .220-240V / 50Hz Rated working power consu
4、mption (1/8 rated output power) . 40W Output power . 2 x 5W + 10W RMS (L/R speakers + subwoofer) DVD Frequency response . 20Hz-20kHz (3dB) Video output .1VP-P Horizontal definition. 500 (TV) Dimensions. 215(W) x 90 (H) x 217(D) mm Weight . 1.14 kg L/R SPEAKER System . 1-way system Impedance.8 Dimens
5、ions (w x h x d) . .115mm x 120mm x 198mm Weight. . 0.78 kg (each) SUBWOOFER System . bass reflex system Impedance. 4 Dimensions (w x h x d) . .289mm x 167mm x 198mm Weight.3.1 kg REMOTE Distance.6m Angle . 300 Specifications and external appearance are subject to change without notice. TECHNICAL SP
6、ECIFICATION 1 - 2 RadioFans.CN 收音机爱 好者资料库 1-3 LF Generator e.g. PM5110 Recorder Use Universal Test Cassette CrO2SBC419 4822 397 30069 LEVEL METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion mete e.g. Sound Technology ST170 L R DUT or Universal Test Cassette FeSBC420 4822 397 30071 LEVEL
7、 METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion meter e.g. Sound Technology ST1700B L R DUT CD Use Audio Signal Disc (replaces test disc 3) SBC429 4822 397 30184 Bandpass 250Hz-15kHz e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT S/N and distortion meter e.g. Sound Technology ST170
8、0B 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 250Hz) to eliminate hum (50Hz, 100Hz). RF Generator e.g. PM5326 Ri=50? Bandpass 250Hz-15kHz
9、 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 Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz). Ri=50? Tuner FM MEASUREMENT SETUP RadioFans.CN 收音机爱 好者资料库 1-4 SERV
10、ICE AIDS GBWARNING 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 mass of the set via a wrist wrap with resistance.
11、Keep components and tools also at this potential. ESD CLASS 1 LASER PRODUCT GB Safety regulations require that the set be restored to its original condition and that parts which are identical with those specified, be used Safety components are marked by the symbol !. Lead free Set remains closed! N
12、Y Play a CD for at least 10 minutes Y playability ok ? N playability ok ? add Info for customer SET OK check playability N Y playability ok ? check playability check playability return set Customer complaint CD related problem fast lens cleaning 1 2 3 For flap loaders (= access to CD drive possible)
13、 cleaning method 4 is recommended INSTRUCTIONS ON CD PLAYABILITY 2 - 1 Exchange CDM 1- 4 For description - see following pages 1 PLAYABILITY CHECK For sets which are compatible with CD-RW discs use CD-RW Printed Audio Disc.7104 099 96611 TR 3 (Fingerprint) TR 8 (600 Black dot) maximum at 01:00 playb
14、ack of these two tracks without audible disturbance playing time for: Fingerprint10seconds Black dot from 00:50 to 01:10 jump forward/backward (search) within a reasonable time For all other sets use CD-DA SBC 444A.4822 397 30245 TR 14 (600 Black dot) maximum at 01:15 TR 19 (Fingerprint) TR 10 (1000
15、 wedge) playback of all these tracks without audible disturbance playing time for: 1000 wedge10seconds Fingerprint10seconds Black dot from 01:05 to 01:25 jump forward/backward (search) within a reasonable time 2 CUSTOMER INFORMATION It is proposed to add an addendum sheet to the set which informs th
16、e customer that the set has been checked carefully - but no fault was found. The problem was obviously caused by a scratched, dirty or copy-protected CD. In case problems remain, the customer is requested to contact the workshop directly. The lens cleaning (method 3) should be mentioned in the adden
17、dum sheet. The final wording in national language as well as the printing is under responsibility of the Regional Service Organizations. 4 LIQUID LENS CLEANING Because the material of the lens is synthetic and coated with a special anti-reflectivity layer, cleaning must be done with a non-aggressive
18、 cleaning fluid. It is advised to use “Cleaning Solvent The actuator is a very precise mechanical component and may not be damaged in order to guarantee its full function. Clean the lens gently (dont press too hard) with a soft and clean cotton bud moistened with the special lens cleaner. The direct
19、ion of cleaning must be in the way as indicated in the picture below. Before touching the lens it is advised to clean the surface of the lens by blowing clean air over it. This to avoid that little particles make scratches on the lens. INSTRUCTIONS ON CD PLAYABILITY 2 - 2 SET BLOCK DIAGRAM 4 - 14 -
20、1 SET WIRING DIAGRAM 4 - 24- 2 5 - 15 - 1 CIRCUIT DIAGRAM - DISPLAY BOARD 5 - 25 - 2 LAYOUT DIAGARM - DISPLAY BOARD CIRCUIT DIAGRAM - RECTIFIER BOARD 6 - 16 - 1 LAYOUT DIAGARM - RECTIFIER BOARD 6 - 26 - 2 DA_L VFD_DATA TV_DAC0 SDRAM_CLK M_CAS TV_DAC3 M_BA0 SPI_CE USB_DP TV_DAC2 M_WE DA_R VFD_STB USB
21、_DM TV_DAC1 M_RAS SPI_CLK VFD_CLK IR_IN SPDIF_OUT D CD_VR DVD_VR CD_VR DVD_VR PUH_DVDLD CDMDI B CDVR PUH_CDLD# PUH_DVDLD# C A PUHRF E F DVD_VR# DVDMDI VREF1 PUH_CDLD PUH_CDLD VREF1 VREF2 TRAYOUT TCO TRAY+ SCO TRAY- FCO XOPVIP1 XOPVIN1 SPDCO VREF2 DMEA HOME CP CLKIN CLKOUT MA0 VREF1 F XOPVIP1 MD0 E V
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