Philips-DVP-3850-K-Mk2-Service-Manual(1) 电路图 维修手册.pdf

《Philips-DVP-3850-K-Mk2-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-3850-K-Mk2-Service-Manual(1) 电路图 维修手册.pdf（50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 - 1149 BU AVM Printed in The Netherlands Subject to modification 3141 785 36964 DVP3850K(X) DVP3850K/55 This service manual is for DVP3850K second generation model

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

4、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 * Power cord * Power plug adaptor * Audio/Vedio cables RadioFans.CN 收音机爱好者资料库 Specificatio

5、ns 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 albums/folders: 300 Maximum number of tracks/titles: 648

6、 Video Signal system: PAL, NTSC ? ? For DVP3850K/98 1-4 Audio/Video Cables 1-5 * AC power cord 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

7、Class) File system: FAT16, FAT32 Maximum number of albums/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 in standby mode: 0.3 W Accessories supplied Remote control and one ba

8、ttery Power cord Audio/Video cables 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 Power consumption:10W Safety instruction 1. General safety Sa

9、fety regulations require that during a repair: . Connect 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

10、or electrical shock hazard. Safety regulations require 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 l

11、ead for external damage. . Check the electrical DC resistance 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 be

12、tween the mains plug and the front panel, controls, and 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 t

13、wo pins of the mains plug. 2.Laser safety This unit employs 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

14、 (DVD) : 10mW (DVD /CD) Beam divergence: 60 degree Note: 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 60mA for DVD), 2.Whether peripheral components

15、 between U1 and xp5 are eroded or badly soldered. Trouble shooting chart Motor no move 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 K3

16、03 is broken. Correct the connection Replace U1. No No Yes Yes Check if the XS301 on the front board to XP80 on the decoder board is in good contact. Whether there is 0V and 3.3V voltage difference on Pin 56 DV_STBY of U1. Trouble shooting chart 4-3 All output voltages on the power board is 0V or de

17、viated. No No No Yes No U1(PIN 4 - Drain waveform) Replace F501 Replace C501&C502 if D501, D502, D503, D504 are normal. Check/ replace U1. Check whether U1 are eroded. All output voltages on the power board is 0V or deviated Check whether there is 300V on C501 or C502. Check whether 100KHz oscillati

18、ng signal on Pin4 of U1 Check if +5V and +12V are short. Check whether the components in the short-circuit voltage are defected or eroded. Yes Yes Yes Yes Trouble shooting chart Trouble shooting chart Check whether F501 is blown 4-4 Disc cannot be read. No Yes No Yes No Yes Yes No No Yes Disc cannot

19、 be read. Check the loaded circuit Replace the Loader Check the FFC connection between 24P and the loader. Check U1 and peripheral components Replace the defective parts Check the connection between U1 Correct connection Replace U1 Yes Check whether the current of R12 is Less than 60mA for DVD and 6

20、5mA for CD. Check if there is RFO signal on pin17 of XP2. (The normal RFO signal is a clear reticulated wave) Trouble shooting chart Check whether the components between of U1 ,and xp5 are eroded or defect 4-5 Only DVD disc or only disc except DVD can be played No No Yes Only DVD disc, or only disc

21、except DVD can be Played. Check the FFC connection between 24pin and the loader. Check the loaded circuit Replace loader Replace the bad spare parts Replace the bad xp5 Check whether the connection of xp5 are eroded or defect Yes Yes Yes Go Change U1 No Check whether the current of R12 is Less than

22、60mA for DVD and 65mA for CD. No Check whether the components between U1 and xp5 are eroded or defect 4-6 No display on LED, and buttons do not work No No No Yes Yes No display on LED, and buttons do not work Check whether there is correct contact between XS301 and XP80 Correct connection Fix power

23、supply board top a power supply for should electric circuit Check the U1s pin 51,52,53 arrive the XP80 connect condition Correct connection Replace U301 or LED Yes Yes Yes No Check VCC(M5V) voltage on the power and front board Check there are STB, SDA and SCK signals on XS301 on the front board. 1.C

24、heck 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 R131,R132 and R138 on MEPG board are open-circuit. Trouble shooting chart XP80 (PIN 4 CLK) XP80 (PIN6 DOUT) 4-7 Distorted audio an

25、d 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 the muting transistor Q361,Q362 are normal Checking the U361 leads the feet has no to break to open Correct co

26、nnection Replace R361,R362 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 the operation amplifying Q544 is normal. Yes Check U361 Replace U1 or U361 No Yes Trouble shooting chart 4-8 A

27、bnormal 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 Y1, R79,R6 ,C26 and C27 Check other of power supply electric circuit Correct the connection Check whether the video filter network circuit i

28、s 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 76/78/79/80 of U1 are normal 4-9 Remote reception is insensitive or fails. No Remote reception is insensitive or fails. Check if the remote control works

29、 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 control. REM301(PIN1 - RC waveform) Check if there is IR signal on pin 54 of U1 Check if the power supply voltage to the re

30、mote 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 C65,U1 No video picture, no sound. Check if the reset circuit consisting ofC65 normal (at a low level for tens of milliseconds, then constantly at

31、 3.3V). Check the cable if that is used to connect TV and DVD Player, is normal Check the power board Crystal oscillator Y1 and peripheral components are defected or eroded. No No No Yes Yes Trouble shooting chart Check whether all the voltages from the power board to the decoder board are normal. R

32、eplace the cable Yes Check if the component of vidio output circuit. Change the bad component Check if there is 27MHz signal output in No Yes No Check U1 and Replace U1 Yes 5 5 4 4 3 3 2 2 1 1 DD CC BB AA 16M? FLASH (1606) 8 8PIN*2.0 POWER SUPPLY 24 1 2 1 1 5 MAIN BOARD 1 1 6 TDL-5 LODER 2PIN*2.0 6P

33、IN*2.0 5PIN*2.5 24PIN*0.5 5PIN*2.5 XP1 CON503 XP82 XP9XP8XP5 P441 1 5 1389W AUDIO AMP&LPF 1389W 2CH+YUV 81 XS301 11PIN*2.0 Front panel 4PIN*2.0 P1RCOAX L VIDEO LPF CVBS YPr Pb +5V USB_DP USB_DM GND GND +12V GND M5V M5V SP- SP+ HOMESW SL- SL+ GND OUTSW GND IOA VSDA SD_D0 / GPIO3368 UART_RXD1 UART_TXD

34、1 GPIO29 GPIO32 GPIO12 63 64 66 VR_DVD Name VR_CD PIN GPIO8 GPIO11 GPIO13 GPIO6 GPIO20 PAD_FG GPI36 UP1_7 5 6 99 98 36 52 53 51 58 59 Features VR_DVD 60 69 GPIO7 40 41 61 62 TROUT TRIN ASPDIF POWER_KEY AKIN1 VR_CD LIMIT GPIOA UP1_6 83 82 VSCK MS_CLK KEY_IN2 GPIO3 70 56 73 71 AUDIO_MUTEGPIO14 KEY_IN1

35、 SCART1 SCART2 VSTB MT1389W General GPIO List Gxyz_CLK MS_BS MS_D0 SD_CLK SD_CMD MSC_DET Gxyz_DA1 Gxyz_DA2 VSYNC HSYNC Gxyz_LOAD GPIO1067 RS232_TXD1 ADC_KEY DVP_STBY GPIO30 GPIO31 AKIN1 RS232_RXD1 AKIN2 GPIO9 DV33 IR 5V GND DATA STB CLK POWER_K LED DISPLAY+ET6202 7 XP601 7PIN*2.0 MIC GND +12VA USB&K

36、OK XP10 17 1 WIRING DIAGRAM: 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 DATA IR CLK GRID1 SEG1 LED- POWER_K1

37、 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 5 KEY2 6 VDD 7 SEG1/KS1 8 SEG2

38、/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 LED_RED C300 100pF/50V/NP0 C300 1

39、00pF/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 51K D302 NC/1N4148 D302 NC/1N4

40、148 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 SEG7 7 SEG6 6 SEG5 5 SEG4 4 SEG3

41、 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 R323NC/33R323NC/33 C303 0.1uF/50V/Y5

42、V 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 FRONT CONTROL BOARD CIRCUIT DIAGRAM: 6-1 6-1 6-1 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 MGND USB_DN VCC MGND USB_DP SGND 12V1

43、2VA 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 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 R211 100K