Philips-DVDR-520-H-Service-Manual电路原理图.pdf

《Philips-DVDR-520-H-Service-Manual电路原理图.pdf》由会员分享，可在线阅读，更多相关《Philips-DVDR-520-H-Service-Manual电路原理图.pdf（30页珍藏版）》请在收音机爱好者资料库上搜索。

1、 Service ManualServiceServiceServiceDVDR520H/00/02/05/37Copyright 2004 Philips Consumer Electronics B.V. Eindhoven, The NetherlandsAll rights reserved. No part of this publication may be reproduced, stored in a retrieval system ortransmitted, in any form or by any means, electronic, mechanical, phot

2、ocopying, or otherwisewithout the prior permission of Philips.Published by LO-MF AV System Printed in The Netherlands Subject to modificationGB 3139 785 30851HDD / DVD Recorder CombiVersion 1.1HDD/DVD Recorder Combi 2 CONTENTS 1. Specification . . 1-1 2. Exploded View Drawing. 2-1 3. Introduction .

3、3-1 4. Product Validation Strategies and Process 4.1 System Block Diagram. 4-1 4.2 Main Board . 4-2 4.3 Front Panel 4-2 4.4 Power PCB . 4-2 4.5 Power Module . 4-2 5. Test Tool Instruction .5-1 6. Fault Finding Tree. 6-1 7. Disassembly Instruction 7.1 Disassemble the Top-Cover. . 7-1 7.2 Disassemble

4、the Drive. 7-2 7.3 Disassemble HDD . 7-3 7.4 Disassemble the M/B . 7-4 7.5 Disassemble Power module. 7-5 7.6 Jump of HDD Mono scope or Dot pattern has no tilt or twisted effect; The RGB picture as below has normally good effect to the naked eyes.If anything undeterminable, please refer to the follow

5、ing factors to evaluate: Video Performance (The test appliance is Tektronix VM 700/s-video VM500/Component): DA Converter 10-bit/54 MHZ Composite Output 1Vpp &5 Ohm S-video Output Y: 1Vpp 75Ohm C: 0.3Vpp 75 Ohm Component Output Y: 1Vpp 75Ohm Pb: 0.7 Vpp 75 Ohm Pr: 0.7 Vpp 75 Ohm 2). Speaker & Sound

6、Signal Test is to test its output audio fineness and locating efficiency of the speaker. Note of Step: Select no.2 - Speaker & Sound Signal Test in the login. The test will check the locating efficiency and audio signal as well as special frequency. Test Criteria: The standard audio output is clear without popping and the signal output from Hi-Fi is normal. If anything undeterminable, please refer to the following factors to evaluate: Audio Performance (The test appliance is Audio position SWR-2122U)