Philips-FWD-831-Service-Manual电路原理图.pdf

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1、Version 1.0FWD831 3141 785 31490DVD Mini Systemall versions Published by SL 0648 Service Audio Subject to modificationCopyright 2006 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrievalsystem or transmit

2、ted, in any form or by any means, electronic, mechanical, photocopying,or otherwise without the prior permission of Philips.Handling Chip Components . 1-1Service Tools . 1-1Leadfree and Safety Information . 1-2Technical Specification . 2-1Service measurement setup . 2-2Connections and Controls . 3-1

3、.3-2Software version and upgrading . 4-1Block Diagram . 5-1Wiring diagram . 6-1Display Boardcircuit diagram . 7-1.7-2layout diagram . 7-3.7-4Main Boardcircuit diagram. . 8-1.8-2layout diagram . 8-3.8-4DVD MPEG Boardcircuit diagram. . 9-1layout diagram . 9-2 DC Power Boardcircuit diagram. . 10-1layou

4、t diagram . 10-1Exploded View Diagram .11-1Mechanical partslist .11-2Electrical Partslist . 12-1.12-5TABLE OF CONTENTSCLASS 1LASER PRODUCT1 - 1HANDLING CHIP COMPONENTS1 - 2SPECIFICATIONSAMPLIFIEROutput power . 2 x 75 W RMSSignal-to-noise ratio . t 60 dBAFrequency response63 20000 Hz, +0.5 / -1 dBInp

5、ut sensitivity AUX . 1.0 V (max. 2 V)Impedance loudspeakers . 6 :Impedance headphones . 32 : -1000 :DVD PLAYERLaser Type . SemiconductorDisc Diameter. 12cm / 8cmVideo Decoding . MPEG-2 / MPEG-1Video DAC . 10 BitsSignal System . PAL / NTSCVideo Format . 4:3 / 16:9Video S/N. 56 dB (minimum)Composite V

6、ideo Output . 1.0 Vp-p, 75 :S-Video Output . Y - 1.0 Vp-p, 75 :. C - 0.286 Vp-p, 75 :Audio DAC . 24 Bits / 96 kHzFrequency Response . 4 Hz - 20 kHz (44.1kHz).4 Hz - 22 kHz (48kHz).4 Hz - 44 kHz (96kHz)Digital Output . SPDIF (Sony Philips digital interface) CoaxialNumber of programmable tracks . 16Si

7、gnal-to-noise ratio . t 65 dBAChannel separation .t 40 dB (1 kHz)Total harmonic distortion.c9H8bdYZ!idhZaZXiVbdkZbZciYgZXidcciZYhXbZcjdghnhiZbbZcjWVg#bdkZhVcZcaVgZYeXijgZje$Ydlc#4hZaZXihYZgZcihadleaVnWVXbdYZhdgVK89$HK89$9K9YhX#3hiVgihgVbZ“Wn“gVbZeaVnWVXdg9K9$K89$HK89#9DidZmidgXdcgbiZhZaZXidc#0$9hX/h

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15、ACROVISIONCHECKLCD shows “Service”NYDisplay showsEEPROM is cleared anddefault values are stored.This test should be done at theend of the production processso that every set is customisedbefore leaving factory.Mpeg board super menuis also display on the TV screen.:The model number is FWD831.Software

16、 version is V0.04.Sale region is 55.Display shows software version. V0.02 is the software version, D831_55_V004NYCLOCK SETbutton pressed?STOPbutton pressed?Macrovision version number is display on the TV screen.To enter Service Testprogram, holdPLAY & STOP buttonsdepressed,and then plug inD831 V0.02D831_55_V004SO3SO3-SLM-791servo code version:SOFTWARE VERSION AND UPGRADING 4 - 15 - 1 5 - 1SET BLOCK DIAGRAM6 - 16 - 1SET WIRING DIAGRAM