Philips-FWD-154-Service-Manual(1) 电路图 维修手册.pdf
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1、Version 1.0 FWD154 3141 785 33780 DVD Mini Hi-Fi System /98 Published by LX 0913 Service Audio Subject to modification Copyright 2009 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 trans
2、mitted, 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 Disassembly diagram. .3-1 Block diagram .4-1
3、Wiring diagram .4-2 Display board Circuit diagram .5-1.5-3 Layout diagram .5-4.5-5 AMP board Circuit diagram .6-1 Layout diagram .6-2.6-3 Cassette board Circuit diagram .7-1 Layout diagram .7-2.7-3 USB/Line in/Video out board Circuit diagram .8-1 Layout diagram .8-2 DVD board Circuit diagram .9-1.9-
4、4 Layout diagram .9-5 Exploded view diagram .10-1 Mechanical parts list .10-2 Electrical parts list.11-1 RadioFans.CN 收音机爱 好者资料库 Tuner FM Tuning Range87.5 - 108 MHz Tuning grid50 KHz Sensitivity - Mono, 26dB S/N Ratio - Stereo, 46dB S/N Ratio 22 dBu 45 dBu Search Selectivity28 dBu Total Harmonic Dis
5、tortion45 dB MW Tuning Range531 - 1602 kHz Tape deck Frequency Response - Normal tape (type I) 63-8000Hz (8dB) S/N Ratio - Normal tape (type I) 35dBA Wow and flutter82 dB/m/W Amplifier Rated Output Power2X20W RMS Frequency Response63 - 16000 Hz, 3dB Signal to Noise Ratio62dB Disc Laser TypeSemicondu
6、ctor Disc Diameter12cm/8cm Video DecodingMPEG-2/MPEG-1 Video DAC10 Bits Signal SystemPAL/NTSC Video Format4:3/16:9 Video S/N56 dB (minimum) Composite Video Output1.0 Vp-p, 75 ohm Audio DAC24Bits / 96 kHz Total Harmonic Distortion1% Frequency Response 4 Hz - 20 kHz (44.1 kHz) 4 Hz - 22 kHz (48 kHz) 4
7、 Hz - 44 kHz (96 kHz) Total harmonic distortion65 dBA General information AC power110-127V/220 - 240V, 50/60 Hz Operation power consumption 50W Standby power consumption 10W USB directVersion 2.0/1.1 Dimensions - Main Unit (W x H x D) - Speaker Box (W x H x D) 220 x 290 x 271 mm 189 x 290 x 175 mm W
8、eight - With Packing - Main Unit - Speaker Box 8.5 kg 3.8 kg 2 x 1.7 kg TECHNICAL SPECIFICATION 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. Sou
9、nd Technology ST170 L R DUT or Universal Test Cassette FeSBC420 4822 397 30071 LEVEL 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 707 480
10、01 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 250Hz)
11、to eliminate hum (50Hz, 100Hz). RF Generator e.g. PM5326 Ri=50? Bandpass 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 Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilotton
12、e (19kHz, 38kHz). Ri=50? Tuner FM MEASUREMENT SETUP RadioFans.CN 收音机爱 好者资料库 1-4 SERVICE 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 connect
13、ed with the same potential as the mass of the set via a wrist wrap with resistance. 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
14、 used Safety components are marked by the symbol !. Lead free Set remains closed! N 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 relat
15、ed problem fast lens cleaning 1 2 3 For flap loaders (= access to CD drive possible) 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 Audi
16、o Disc.7104 099 96611 TR 3 (Fingerprint) TR 8 (600 Black dot) maximum at 01:00 playback 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.4
17、822 397 30245 TR 14 (600 Black dot) maximum at 01:15 TR 19 (Fingerprint) TR 10 (1000 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 CUST
18、OMER INFORMATION It is proposed to add an addendum sheet to the set which informs the 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
19、the workshop directly. The lens cleaning (method 3) should be mentioned in the addendum 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
20、 with a special anti-reflectivity layer, cleaning must be done with a non-aggressive 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)
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