Philips-DVP-3800-X-Service-Manual(1) 电路图 维修手册.pdf
《Philips-DVP-3800-X-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-DVP-3800-X-Service-Manual(1) 电路图 维修手册.pdf(47页珍藏版)》请在收音机爱好者资料库上搜索。
1、 TABLE OF CONTENTS Page Version 1.4 Service Manual PHILIPS GB All rights reserved. No part of this publication may be reproduced, stored in aretrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise without the prior permission of Philips. CLASS
2、 1 LASER PRODUCT Service Service DVD Player Copyright 2011 Philips Consumer Electronics B.V. Eindhoven, The Netherlands Published by LLL - 1202 BU AVM Printed in The Netherlands Subject to modification 3142 785 35864 DVP3800(X) DVP3800/55 First Generation This service manual is for DVP3800 first gen
3、eration model, which is different from the second generation DVP3800 model. For first generation model, the serial number begins with KX 1Axxxxxxxxxx Specification.1-2 Safety Instruction,Warning PIN14=3.3V and PIN15=2.4V for DVD), 2.Whether peripheral components are eroded or badly soldered. Trouble
4、 shooting chart Motor no move FOCUS_PWN waveform 4-2 The power can not be on or off Go Yes Yes No No The power cant be on or off Yes Repair the power board Check the power supply on the power board is normal. Check/Correct connection Whether the connection to K303 is broken. Correct the connection R
5、eplace U1. No No Yes Yes Check if the XS301 on the front board to XP82 on the decoder board is in good contact. Whether there is 0V and 3.3V voltage difference on Pin 95 PCON of U1. Trouble shooting chart 4-3 All output voltages on the power board is 0V or deviated. No No No Yes No U1(PIN 4 - Drain
6、waveform) Replace F501 Replace C501PIN14=3.3V and PIN15=2.4V for DVD), 2.Check whether peripheral components are eroded or defect Check the FFC connection between 24P and the loader. Check U1 and peripheral components Re-solder or replace the defective parts Check the connection between U1 Correct c
7、onnection Replace U1 or loader. Yes Check whether there is laser voltage (1.9V for CD and 2.4V for DVD) on L101(R35) and L102(R32) Check if there is RFO signal on pin17 of XP2. (The normal RFO signal is a clear reticulated wave) Trouble shooting chart Check U1, U10, and peripheral components are ero
8、ded or badly soldered. 4-5 Only DVD disc or only disc except DVD can be played No No Yes Only DVD disc, or only disc except DVD can be Played. Check the FFC connection between 24pin and the loader. Check the loaded circuit Check the solder status on U1 and peripheral components check if bad solder e
9、xist on U1 and peripheral components Replace the bad spare parts Check whether pins of U1 and peripheral components are badly soldered, defected Check Q103, Q104 whether in good condition Yes Yes Yes Go Correct connection Change U1 or the loader. No No Yes Check whether there is laser voltage (1.9V
10、for CD and 2.4V for DVD) on L101(R35) and L102(R32). Trouble shooting chart No Whether voltage on pin14/pin15 of U1 varies between 2.4V and 3.3V (PIN14 =2.4V and PIN15=3.3V for CD; PIN14=3.3V and PIN15=2.4V for DVD) 4-6 No display on LED, and buttons do not work No No No Yes Yes No display on LED, a
11、nd buttons do not work Check whether there is correct contact between XS301 and XP82 Correct connection Fix power supply board top a power supply for should electric circuit Check the U1s pin 34,35,39 arrive the XP82 connect condition Correct connection Replace U301 or LED Yes Yes Yes No Check VCC(M
12、5V) voltage on the power and front board Check there are STB, SDA and SCK signals on XS301 on the front board. 1.Check whether bad solder exists on U301 and pins of LED, 2.Check whether the circuit connected to K302, K303 and K301 is broken, 3.Check whether R1, R3 on front board and R81,R82 and R83
13、on MEPG board are open-circuit. Trouble shooting chart XP82 (PIN 4 CLK) XP82 (PIN6 DOUT) 4-7 Distorted audio and loud noise No Yes No Yes Yes No No Distorted audio and loud noise Replace R369,R375 Check Q544 Replace Q361,Q362 Check whether the muting resistance R369,R375 are normal Yes Check whether
14、 the muting transistor Q361,Q362 are normal Checking the U361 leads the feet has no to break to open Correct connection Replace R362,R363 Check the voltage on pin3 or pin5 of U361 is OK. (Should be 2.53.1V) Check whether the U1 or U361 powersupply normal No Yes Check the power supply voltages M5V to
15、 the operation amplifying Q544 is normal. Yes Check U361 Replace U1 or U361 No Yes Trouble shooting chart 4-8 Abnormal color of video picture Yes Abnormal color of video picture Check whether the 3.3V and 1.2V power supply voltages on the decoder board are normal. Check Y2, R12,R34,R16,C10 and C11 C
16、heck other of power supply electric circuit Correct the connection Check whether the video filter network circuit is normal. Yes Yes No No No Check whether the 27MHz output signal normal. Trouble shooting chart change U1 Yes No Check if the video signals on Pin 100,102,103,104, of U1 are normal 4-9
17、Remote reception is insensitive or fails. No Remote reception is insensitive or fails. Check if the remote control works properly. Check battery Check R315、C315 Use an oscilloscope to check if there is output waveform from the first pin IR of the remote censor after pressing button on the remote con
18、trol. REM301(PIN1 - RC waveform) Check if there is IR signal on pin 39 of U1 Check if the power supply voltage to the remote censor is normal Go No No No Yes Yes Yes Correct connection Yes Change U1 IR waveform Trouble shooting chart 4-10 No video picture, no sound. Change CE1,Q1,Q2. No video pictur
19、e, no sound. Check if the reset circuit consisting ofCE1,Q1,Q2 is normal (at a low level for tens of milliseconds, then constantly at 3.3V). Check whether there is 27MHz signal output. Check the loaded circuit Crystal oscillator Y1 and peripheral components are defected or eroded. No No No Yes Yes Y
20、es 27Mhz waveform Trouble shooting chart Check whether all the voltages from the power board to the decoder board are normal. CVBS(R884 point) waveform Check if there is 135MHz signal output on R193. Check whether short-circuit or bad solder on U176,U186 SDRAM(R193 DCLK) waveform Check U1. No No Rec
21、onnect the component in Yes Yes Check if short-circuit and bad solder exist on Pin 72 Yes No SP- SP+ HOMESW SL- SL+ GND LOAD- LOAD+ OUTSW GND INSW DV33 IR 5V GND DATA STB CLK POWER_K ASA 8829F LOADER+ IM RFXP2 16M FLASH 8 8PIN*2.0 POWER SUPPLY 24 1 5 1 1 5 MAIN BOARD 1 1 6 DVD LOADER 5PIN*2.0 6PIN*2
22、.0 5PIN*2.5 24PIN*0.5 5PIN*2.5 XP1 CON503 XP82 XP4 +5V XP3XP2 P441 1 5 MT1389J CD5890 AUDIO AMP&LPF MOTER DRIVER 64M/16M SDRAM USB_DP USB_DM 81 XS301 8PIN*2.0 LED DISPLAY+ET6202 GND 41 USB XS800 4PIN*2.0 4PIN*2.0 P1RCOAX L VIDEO LPF CVBS YPr Pb (LED229GA3JY) 41 XP7 GND +12V GND M5V M5V 5-1 5-1 DVP38
23、00 BLOCK/WIRING DIAGRAM A A B B C C D D E E 11 22 33 44 DV33 VSTB VSCK VSDA IR POWER_K TRCLOSE PCON USB_CON M5V GND GND +5V VR_CD VR_DVD VREF_OPU C B E A D RFO F LDO_DVD TRIN FOSO LDSW LDO_CD FMSO LIMIT TROPEN TROUT STBY DMSO TRSO M_BIAS RESET_A PCON USB_CON IR VSCK VSDA VSTB TR_B1 REG02 REG01 TR_B2
- 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-DVP-3800-X-Service-Manual1 电路图 维修手册 Philips DVP 3800 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


