Philips-FWC-143-Service-Manual(1) 电路图 维修手册.pdf
《Philips-FWC-143-Service-Manual(1) 电路图 维修手册.pdf》由会员分享,可在线阅读,更多相关《Philips-FWC-143-Service-Manual(1) 电路图 维修手册.pdf(23页珍藏版)》请在收音机爱好者资料库上搜索。
1、Version 1.0 FWC143 3141 785 32460 Mini Hi-Fi System -/12/05 Published by LX 0804 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 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. .3-1.3-2 Block diagram
3、.4-1 Wiring diagram .4-2 CD board Circuit diagram .5-1 Layout diagram .5-2.5-3 Radio board Circuit diagram .6-1 Layout diagram .6-2 Control board Circuit diagram .7-1 Layout diagram .7-2.7-3 Power & AMP board Circuit diagram .8-1 Layout diagram .8-2.8-3 Exploded view diagram .9-1 Mechanical parts li
4、st .9-2 Electrical parts list.10-1.10-2 RadioFans.CN 收音机爱 好者资料库 AMPLIFIER Output power .2 x 10W RMS Signal-to-noise ratio. 62 dBA (IEC) Frequency response .63 16000 Hz, 3 dB Impedance loudspeakers . 8 Impedance headphones . 32 1000 CD PLAYER Frequency range . 63 16000 Hz Signal-to-noise ratio. 65 dB
5、A TUNER FM wave range .87.5 108 MHz MW wave range. . 526.5+0/-20 1606.5+50/-0 kHz TAPE DECK Frequency response Normal tape (type I).125 8000 Hz (8 dB) Signal-to-noise ratio Normal tape (type I). 35 dBA Wow and flutter. 0.4% DIN SPEAKERS Bass reflex system Dimensions (w x h x d) .190 x 292 x 182 (mm)
6、 GENERAL INFORMATION AC Power.220 230V / 50 Hz Dimensions (w x h x d) . 220 x 292 x 285 (mm) Weight (with/without speakers) . .approx. 4.9 / 2.3 kg Specifications and external appearance are subject to change without notice. TECHNICAL SPECIFICATION 1 - 2 RadioFans.CN 收音机爱 好者资料库 1-3 LF Generator e.g.
7、 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 METER e.g. Sennheiser UPM550 with FF-filter S/N and distortion
8、 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 ST1700B Frame aerial e.g. 7122 707 89001 Tuner AM (MW,LW) To avoid a
9、tmospheric 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 e.g. 7122 707 48001 LF Voltmeter e.g. PM2534 DUT RF Generator
10、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 SERVICE AIDS GBWARNING All ICs and many other semi-conductors are s
11、usceptible 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. Keep components and tools also at this potential. ESD CLASS 1 L
12、ASER 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 Y Play a CD for at least 10 minutes Y playability ok ? N playab
13、ility 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) cleaning method 4 is recommended INSTRUCTIONS ON CD PLAYABILIT
14、Y 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 playback of these two tracks without audible disturbance playing tim
15、e 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 wedge) playback of all these tracks without audible disturbanc
16、e 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 the customer that the set has been checked carefully - but no fau
17、lt 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 addendum sheet. The final wording in national language as well as th
18、e 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 cleaning fluid. It is advised to use “Cleaning Solvent The act
19、uator 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 direction of cleaning must be in the way as indicated in the picture
20、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 3 - 13 - 1 SET WIRING DIAGRAM 4 - 14- 1 5 - 15 - 1 CIRCUIT DIAGRAM - CD
21、BOARD SC7314 DGND OUT1A OUT1B IN1A IN1B REG REO MUTE GND IN2B IN2A OUT2B OUT2A GND OPOUTOPIN(-) OPIN(+) OUT3A OUT3B IN3A IN3B VCC VCC1 VREF IN4B IN4A OUT4B OUT4A GND LD LDON RFAC A B C D VFC VCC EQINBST RFG AGND VC RFC RFRC RFO RFM RF1 MON DOOR_DET MOODEIN KIN2 KIN1 RMT_INT ENCODER_INT OPTI ENCODER-
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- Philips-FWC-143-Service-Manual1 电路图 维修手册 Philips FWC 143 Service Manual 维修 手册
收音机爱好者资料库所有资源均是用户自行上传分享,仅供网友学习交流,未经上传用户书面授权,请勿作他用。



Marshall-9100-62-02-Schematic电路原理图.pdf


