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

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1、 Service ManualServiceServiceServiceDVDR520H/00/02/04/05/37/69/75/93/97Copyright 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, m

2、echanical, photocopying, or otherwisewithout the prior permission of Philips.Published by LO-MF AV System Printed in The Netherlands Subject to modificationGB 3139 785 30853HDD / DVD Recorder CombiVersion 1.3CONTENTS1. Specifications .1-12. Product Validation Strategies and Process2.1 System Block D

3、iagram .2-12.3 Front Panel .2-22.4 Rear Panel .2-23. Fault Finding Tree & Trouble shooting .3-14 Disassembly Instructions5.1 Disassemble the Top Cover .3-15.1 Disassemble the Drive . 3-15.1 Disassemble the HDD . 3-15.1 Disassemble the M/B .3-15.1 Disassemble the Power Module .3-15.1 Disassemble the

4、Tuner .3-15.1 Jumper Setting.3-15. Firmware Update .5-16. Exploded View & Spare parts listExploded view for /37/97 .6-1Exploded view for /00/02/04/05/69/75 . 6-2DVD Test disc & Service parts list .6-37. Revision List.7-11-1 1. Specifications 2-1 2. Product Validation Strategies and Process 2.1. Syst

5、em Block Diagram FANHDD Power Module DVDM/B Tuner 2-2 2.2. Front Panel 2.3. Rear Panel 3-1 3. Fault Finding Tree Front panel display? Y N Power cord plug? N Plug the power cord Display Normal? N Replace front display board Y Press “EJECT”buttom to verify if the player boot up and also tray come out

6、? N Replace drive Y Open top cover and use “multimeter” to verify if the power module output both 5V&12V Y Replace front display board Y Put a movie disc and press the “play” to verify if AV output corret? Replace M/B N Y N Replace power module Y N Replace HDD NPF Use the “Erase” function of the “di

7、sc tool “ to verify if the HDD work normal? Start condition: 1. Plug the power cord 2. Power on 3-2 Recording Press Record button to start di Select Target to HDD/DVD OK Y N Select Source view and display OK N Show “Protected Content” N Show “Wrong Signal Type” AV Sources video is black&white or ifC

8、heck if TV system of input device is different Source DVD is not allowed to Y Recording disc was formatted when iffY N Show “Write Fail” Bad write quality on this disc Y N Select DV but no video Gray screen-check Connection N Select AV sources but no i iCheck connection Y Y Y Start condition: 1. Plu

9、g the power cord 2. Power on 3-3 DVD Playback Auto-play DVD VCD SVCD and Media Disc Load supported disc DVD+-R/RW, CD-R Y Select Target DVD, eject Not supported format Show “Preparing” then start pre-format for Blank disc Invalid disc or Data disc N N Y Y Y Start condition: 1. Plug the power cord 2.

10、 Power on 3-4 Tuner : Select the source into TV mode first TV signal on screen ? N N Check if Audio /Video output properly when DVD playback ? AV output issue Y N Replace Tuner Board Y N Display normally ? Can scan All channel? Can Fine tune Channel? No problem found Replace Tuner Board Replace Tune

11、r Board N N Y Y Y Y Check if the Audio output properly ? 3-5 Reference of defect symptoms for repair After power cord plug in ,LED no display , but AV output normal after power on - replace display board After power on , the color of the screen isnt correct - replace M/B After power on , the fan doe

12、snt work - replace power module / Fan Cant eject or show “No Disc” - replace drive Cant auto format any brand new disc - replace drive Recording will auto stop or hang - replace M/B & drive Playback will have mosaic - replace M/B Cant format HDD - replace HDD Cant record with HDD - replace HDD No Au

13、dio or audio output abnormal - replace M/B Optical / Coaxial no output when the setting is set as DTS output - replace M/B Cant update F/W through drive - replace drive Cant detect DV when plug in/out with a DV - replace display board AV1 input mode doesnt output video / audio when connected to a normal external AV source - replace display board AV2 ( Scart) / S-Video input mode doesnt output video / audio when connected to a normal external AV source - replace M/B