Philips-DVDR-520-H-Service-Manual(1) 电路图 维修手册.pdf
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1、 Service Manual Service ServiceService ServiceService DVDR520H/00/02/05/37 Copyright 2004 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 transmitted, in any form or by any means, electro
2、nic, mechanical, photocopying, or otherwise without the prior permission of Philips. Published by LO-MF AV SystemPrinted in The NetherlandsSubject to modification GB3139 785 30851 HDD / DVD Recorder Combi Version 1.1 RadioFans.CN 收音机爱 好者资料库 HDD/DVD Recorder Combi 2 CONTENTS 1. Specification . . 1-1
3、2. Exploded View Drawing. 2-1 3. Introduction . 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 D
4、isassemble the Top-Cover. . 7-1 7.2 Disassemble 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 an
5、ything undeterminable, please refer to the following 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 V
6、pp 75 Ohm Pr: 0.7 Vpp 75 Ohm 2). Speaker & Sound 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. ?
7、 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) HDD/DVD Recorder Combi 11 DA converter 24 b
8、it /192KHZ AD converter 24-bit Signal-Noise (1kHZ) 90dB Dynamic range(1kHZ) 80dB Cannel Separation(1kHZ) 80dB Total Harmonic Distortion(1kHZ) -65dB 3). Music Demo test is to check the video output signal good without noise. 4). Video Demo test is to check the normal function of subtitle, language, a
9、ngle and so on. Login in the main test menu for no.4 Video Demo and press the key of “Navi” on remote to choose “Subtitle” “Audio” and “Angle” to check the normal function. Navi button HDD/DVD Recorder Combi 12 5). Karaoke Demo Test: 5.3 Items of the DVD disc in common use when rma 5.3.1 Necessary R
10、epairing tools in need to test the following 3 items: A. Video output B. Audio output C. AV output (film) 5.3.2 Note of step: STEP1: A. Insert the DVD VIDEO 5-1 / 5-2P disc and it will auto playback B.Press the key of “Top Menu” on remote to login the menu C.Select the item 1Video Signal Test and pr
11、ess “Enter” to start the test on any color difference in Color bar and the standard fineness of the R, then press HDD/DVD Recorder Combi 13 “Top Menu” back to test menu STEP2: A.Select item 2Speaker & Sound Signal Test and press “Enter” for the item 1-Speaker & Sound Signal Test, then press “Enter”
12、for “2.0CH” and the “1KHZ Audio Test”, to test the R/L- Cs output is normally good or not. And then press “Top Menu” back to menu B.In the menu to choose item 4-Video Demo and press “Enter” to start the test, to check the normally good video and audio output , then press “Top Menu” back to test menu
13、. STEP3: Take out the test disc and the test is over. HDD/DVD Recorder Combi 14 6. Fault Finding Tree Before repair please make good connection with all input and output device Front panel display? Y N Power cord plug? N Plug the power cord Display Normal? N Replace front display board Y Press “EJEC
14、T”buttom to verify if the player boot up and also tray come out ? 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 powe
15、r module Use the “Erase” function of the “disc tool “ to verify if the HDD work normal? Y N Replace HDD NPF HDD/DVD Recorder Combi 15 Recording Press Record button to start recording Select Target to HDD/DVD OK Y N Select Source view and display OK N Show “Protected Content” N Show “Wrong Signal Typ
16、e” AV Sources video is black&white or shift Check if TV system of input device is different Source DVD is not allowed to reproduce Y Recording disc was formatted when use different TV setting Y N Show “Write Fail”Bad write quality on this disc Y N Select DV but no video Gray screen-check connection
17、Black screen-check TV system of the DV or DV tape N Select AV sources but no video/audio Check connection Y Y Y HDD/DVD Recorder Combi 16 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 star
18、t pre- format for recording Blank disc Invalid disc or Data disc N N Y Y Y HDD/DVD Recorder Combi 17 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 -
19、replace M/B After power on , the fan doesnt 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
20、Cant record with HDD - replace HDD No Audio 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 out
21、put 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 HDD/DVD Recorder Combi 18 Module Fail / Problem Remedy / Symptom ? Run Disc Tool/Format/HD
22、D show Fail, this could be a bad HDD ? Run Disc Tool/Defragment show Fail, this could be a bad HDD HDD ? Format no problem but show Write Fail during recording , this could be a bad HDD ? Load any disc always show No disc, this could be a bad DVD drive ? Load some kind of discs always show No disc.
23、For example load DVD no problem, but load CD-R show No disc, this could be a bad DVD drive DVD Drive ? Cannot open tray. User can try to power off the recorder, and then press Eject to boot again. If still can not open, this could be a bad DVD drive. If tray open successfully and there is a disc ins
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