Philips-DVP-3850-K-Mk1-Service-Manual(1) 电路图 维修手册.pdf

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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 - 1149 BU AVM Printed in The Netherlands Subject to modification 3141 785 35714 DVP3850K(X) DVP3850K/55 First Generation This service manual is for DVP3850K first

3、generation model, which is different from the second generation DVP3850K model. For first generation model, the serial number begins with KX 1Axxxxxxxxxx Specification.1-2 Safety Instruction,Warning 50/60 Hz Power consumption: 8 W Power consumption in standby mode: 0.3 W Accessories supplied Remote

4、control and one battery User Manual Laser specifi cation Type: Semiconductor laser InGaAIP (DVD), AIGaAs (CD) Wave length: 658 nm (DVD), 790 nm (CD) Output Power: 7.0 mW (DVD), 10.0 mW (VCD/CD) Beam divergence: 60 degrees 1-3 RadioFans.CN 收音机爱好者资料库 Specifications Note ? DVD region codeCountries ? Pl

5、ayable media Disc ? ? ? File Video: .avi, .divx, .mp4, .xvid Audio: .mp3, .wma Picture: .jpg, .jpeg USB storage device ? Class support: MSC (Mass Storage Class) File system: FAT16, FAT32 Maximum number of albums/folders: 300 Maximum number of tracks/titles: 648 Video Signal system: PAL, NTSC ? ? For

6、 DVP3850K/98 1-4 Audio/Video Cables 1-5 Specifications Note ? DVD region codeCountries ? Playable media Disc ? ? ? File Video: .avi, .divx, .mp4, .xvid Audio: .mp3, .wma Picture: .jpg, .jpeg USB storage device ? Class support: MSC (Mass Storage Class) File system: FAT16, FAT32 Maximum number of albu

7、ms/folders: 300 Maximum number of tracks/titles: 648 Video Signal system: PAL, NTSC ? ? 1-6 For DVP3850K/93 Audio 2-channel analog output Audio Front L 60 Hz Power consumption: 8 W Power consumption in standby mode: 0.3 W Accessories supplied Remote control and one battery Power cord Audio/Video cab

8、les User Manual Laser specifi cation Type: Semiconductor laser InGaAIP (DVD), AIGaAs (CD) Wave length: 658 nm (DVD), 790 nm (CD) Output Power: 7.0 mW (DVD), 10.0 mW (VCD/CD) Beam divergence: 60 degrees 1-11 Safety instruction 1. General safety Safety regulations require that during a repair: . Conne

9、ct the unit to the mains via an isolation transformer. . Replace safety components indicated by the symbol , only by components identical to the original ones. Any other component substitution (other than original type) may increase risk of fire or electrical shock hazard. Safety regulations require

10、 that after a repair, you must return the unit in its original condition. Pay, in particular, attention to the following points: . Route the wires/cables correctly, and fix them with the mounted cable clamps. . Check the insulation of the mains lead for external damage. . Check the electrical DC res

11、istance between the mains plug and the secondary side: 1) Unplug the mains cord, and connect a wire between the two pins of the mains plug. 2) Set the mains switch the “on” position (keep the mains cord unplug). 3) Measure the resistance value between the mains plug and the front panel, controls, an

12、d chassis bottom. 4) Repair or correct unit when the resistance measurement is less than 1M?. 5) Verify this, before you return the unit to the customer/user (ref. UL-standard no. 1492). 6) Switch the unit “off”, and remove the wire between the two pins of the mains plug. 2.Laser safety This unit em

13、ploys a laser. Only qualified service personnel may remove the cover, or attempt to service this device (due to possible eye injury). Laser device unit Type : Semiconductor laser GaAlAs Wavelength : 650nm (DVD) : 780nm (VCD/CD) Output power : 7mW (DVD) : 10mW (DVD /CD) Beam divergence: 60 degree Not

14、e: Use of controls or adjustments or performance of procedure other than those specified herein, may result in hazardous radiation exposure. Avoid direct exposure to beam. Safety instruction, Warning PIN14=3.3V and PIN15=2.4V for DVD), 2.Whether peripheral components are eroded or badly soldered. Tr

15、ouble 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 connect

16、ion Replace 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 - D

17、rain 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 Corr

18、ect connection 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 ar

19、e eroded 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 sol

20、der exist 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 (

21、1.9V 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 L

22、ED, and 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

23、VCC(M5V) 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

24、 R83 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 wh

25、ether 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 M

26、5V to 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

27、C11 Check 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

28、 4-9 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 remot

29、e control. 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 p

30、icture, 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

31、Yes Yes 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 N

32、o Reconnect 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 MIC GND +12VA XP476 1 3 ASA 8829F LOADER+ IM RFXP2 16M FLASH 8 8PIN*2.0 POWER SUPPLY 24 1 5 1 1 5 MAIN BOARD 1 1

33、 6 DVD LOADER 5PIN*2.0 6PIN*2.0 5PIN*2.5 24PIN*0.5 5PIN*2.5 XP1 XS201 XP80 XP4 +5V XP3XP2 P441 1 5 MT1389J AM5888 AUDIO AMP&LPF MOTER DRIVER 64M/16M SDRAM USB_DP DVP385(X): MTK1389J BLOCK & WIRING DIAGRAM USB_DM 81 XS301 8PIN*2.0 LED DISPLAY+ET6202 GND 71 KOK+USB XP601 7PIN*2.0 4PIN*2.0 P1RCOAX L VI

34、DEO LPF CVBS YPr Pb (LED229GA3JY) 41 XP7 GND +12V GND M5V M5V 5-1 5-1 5 5 4 4 3 3 2 2 1 1 DD CC BB AA SEG8 DV33 POWER_K LED- LED+ IR LED+ GRID1:5 GRID5 SEG8 GRID1 SEG3 GRID2 GRID3 GRID4 SEG6 SEG5 SEG2 SEG4 SEG7 SEG1 GRID3 GRID2 GRID4 GRID5 SEG5 SEG4 SEG6 5V POWER_K DATA SEG2 SEG3 KEY2 KEY1 CS 5V DAT

35、A IR CLK GRID1 SEG1 LED- POWER_K1 SEG7 SEG1:8 CLK CS DV335V 5V DV33 5V R313 N Y IR VCC GND DATA CS CLK 0.3W 1W R322R317R319 NN YYY N Y N R321Q1R323 N N Y Y Y N ? R316 R313NC/0R313NC/0 R10RR10R Q1 NPN_3DG3904M Q1 NPN_3DG3904M U301 DRIVER_LED_ET6202 U301 DRIVER_LED_ET6202 OSC 1 DI/O 2 CLK 3 STB 4 KEY1

36、 5 KEY2 6 VDD 7 SEG1/KS1 8 SEG2/KS2 9 SEG3/KS3 10 SEG4/KS4 11 SEG5/KS5 12 SEG6/KS6 13 SEG7/KS7 14 GND 28 GRID1 27 GRID2 26 GND 25 GRID3 24 GRID4 23 GND 22 VDD 21 SEG14/GRID5 20 SEG13/GRID6 19 SEG12/GRID7 18 SEG10/KS10 17 SEG9/KS9 16 SEG8/KS8 15 R315100R315100 R303 4.7K R303 4.7K LED2 LED_RED LED2 LE

37、D_RED C300 100pF/50V/NP0 C300 100pF/50V/NP0 C306 1uF/50V/Y5V C306 1uF/50V/Y5V R304 4.7K R304 4.7K C301 100pF/50V/NP0 C301 100pF/50V/NP0 K301 open/close K301 open/close R305 4.7K R305 4.7K REM301 IRM_12mm REM301 IRM_12mm IR 1 GND 2 VCC 3 GND 4 GND 5 C302 100pF/50V/NP0 C302 100pF/50V/NP0 R306 51K R306

38、 51K D302 NC/1N4148 D302 NC/1N4148 K302 play/pause K302 play/pause R322 0 R322 0 K303 power K303 power + NC/47uF CE301 + NC/47uF CE301 D301 1N4148 D301 1N4148 R307 10K R307 10K R321 1K R321 1K R316NC/33R316NC/33 LED1 LED_2501AHG1 LED1 LED_2501AHG1 GRID5 13 GRID4 12 GRID3 11 GRID2 10 GRID1 9 SEG8 8 S

39、EG7 7 SEG6 6 SEG5 5 SEG4 4 SEG3 3 SEG2 2 SEG1 1 R308 10K R308 10K R317 1K R317 1K R309 1K R309 1K XS301 8PIN/2.0mm/140mm XS301 8PIN/2.0mm/140mm 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 + 47uF/16V CE300 + 47uF/16V CE300 + CE302 10uF/16V + CE302 10uF/16V R314 0 R314 0 R318NC/100R318NC/100 R310 1K R310 1K R323N

40、C/33R323NC/33 C303 0.1uF/50V/Y5V C303 0.1uF/50V/Y5V R311 NC/1K R311 NC/1K R319 4.7K R319 4.7K C315 47pF/50V/NP0 C315 47pF/50V/NP0 R312 1K R312 1K R30RR30R consumption Front Control Board Circuit Diagram: 6-16-1 1 1 2 2 3 3 4 4 5 5 AA BB CC DD EE REF 12VA MIC_OUT USB_DP USB_DN 12VA 12V MICMIC_OUT REF

41、 MGND USB_DN VCC MGND USB_DP SGND 12V12VA SGND AGNDMGND MGNDAGND MGNDSGND VCC ?3.5mm 47-USB003-XX2 USB P600 USB 47-USB003-XX2 USB P600 USB 1 2 3 4 5 6 + - U200A NJM4558 + - U200A NJM4558 3 2 1 84 R208 1K R208 1K R207100KR207100K C203 1000p C203 1000p R203 22K R203 22K C211 2.2uF C211 2.2uF L201 500Z

42、 L201 500Z CE200 22uF CE200 22uF 8PIN/2.0mm XP601 8PIN/2.0mm XP601 1 2 3 4 5 6 7 R200 10K R200 10K C20547pC20547p C204 100p C204 100p R206 20K R206 20K L202 500Z L202 500Z L200 500Z L200 500Z + - U200B NJM4558 + - U200B NJM4558 5 6 7 84 R205180KR205180K C209 2.2uF C209 2.2uF C20647pC20647p R211 100K

43、 R211 100K 47-EAR024-XX0 KARAOKE P601 KARAOKE INPUT 47-EAR024-XX0 KARAOKE P601 KARAOKE INPUT 1 2 3 C210 2.2uF C210 2.2uF C208 100p C208 100p R209 680 R209 680 R210 150 R210 150 R201 5.6K R201 5.6K C201 0.1u C201 0.1u CE201 22uF CE201 22uF R202 22K R202 22K 6-26-2 Karaoke and USB Board Circuit Diagra

44、m: A A B B C C D D E E 11 22 33 44 GND * CAUTION : PLEASE USE THE PARTS HAVING THE DESIGNATED PARTS NUMBER WITHOUT FAIL. THE PARTS MARKED WITH ARE IMPORTANT PARTS ON THE SAFETY. AC INPUT + 1000uF/16V C507 + 1000uF/16V C507 R516 22 R516 22 D501 1N4007 D501 1N4007 CY501 1000PF/250VAC CY501 1000PF/250VAC L502 6.8uH L502 6.8uH 12 L503 20mH L503 20