Philips-DVP-3250-Service-Manual(1) 电路图 维修手册.pdf

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1、TABLE OF CONTENTS Page Version 1.1 Service Manual DVP3250K . Technical Specifications.1-2 . Safety Instruction, Warning 50/60 Hz Power consumption 10 W Power consumption in 1 W Standby mode Specifications are subject to change without prior notice. 1-2 RadioFans.CN 收音机爱 好者资料库 Safety instruction 1. G

2、eneral safety Safety 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 increa

3、se risk of fire 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 insulatio

4、n of the mains lead 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 res

5、istance value between 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 wi

6、re between the two 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) Ou

7、tput power : 7mW (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 2) Press the Setup button on t

8、he remote control, then the setup interface should be displayed on the TV screen; 3) Move the right cursors of the remote control to choose the Reference and press 1 3 8 9 3 1 on the remote control; 4) Then move the up or down cursors to choose the region code. Note: restart after above steps. 5-1 S

9、pindle motor does not move Yes Yes No No No No Yes Check whether “M5V” (+5V) voltage is normal. Correct connection Check the M5V power supply Check/Replace Q5,Q6,Q7,Q8. Check/ Replace U1. Check opu focus 1. Check U1 25pin FOCUS_PWM signals 2.If there are F+, F-, T+ and T- signals output from U2. Che

10、ck/Replace the loader Yes Yes No Go Check whether laser voltage (1.9V for CD & 2.4V for DVD) on L9 and L10 Check the FFC connection between 24P and the loader. 1.Whether voltage on pin 23 of U1 varies between 0 and 3.3V (3.3V for CD and 0V for DVD), 2.Whether peripheral components are eroded or badl

11、y soldered. Trouble shooting chart Motor no move FOCUS_PWN waveform 5-2 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 K301 is broken. Corre

12、ct the connection Replace U1. No No Yes Yes Check if the XS301 on the front board to XP5 on the decoder board is in good contact. Whether there is 0V and 3.3V voltage difference on Pin 106 PCON of U1. Trouble shooting chart 5-3 All output voltages on the power board is 0V or deviated. No No No Yes N

13、o U1(PIN 8 - Drain waveform) Replace F1 Replace C1&C2 if D1, D2, D3, D4 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 C1 or C2. Check whether 100KHz oscillating signal on Pin6 of U1 Check if +5V and

14、 +12V are short. Check whether the components in the short-circuit voltage are defected or eroded. Yes Yes Yes Yes U1(PIN 3 - RC waveform) Trouble shooting chart Check whether F1 is blown 5-4 Disc cannot be read. No Yes No Yes No Yes Yes No No Yes Disc cannot be read. Check the loaded circuit 1.Chec

15、k voltage on pin 23 of U1 varies between 0 and 3.3V: ?3.3V for CD ?0V 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 Co

16、rrect connection Replace U1 or loader. Yes Check whether there is laser voltage (1.9V for CD and 2.4V for DVD) on L9 and L10. Check if there is RFO signal on pin17 of XP2. (The normal RFO signal is a clear reticulated wave) Trouble shooting chart Check U1, U2, and peripheral components are eroded or

17、 badly soldered. 5-5 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 whether there is volt

18、age variance on pin 25 of U1. check if bad solder exist on U1 and peripheral components Replace the bad spare parts Check whether pins of U1 and peripheral components are badly soldered, defected Check Q5, Q7 whether in good condition Yes Yes Yes Go Correct connection Change U1 or the loader. No No

19、Yes Check laser voltage (2.4V) output on L10, if pin18 of U1 is at low level. Trouble shooting chart No 5-6 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 XP5 Correct connection Fix power

20、 supply board top a power supply for should electric circuit Check the U1s pin 87,41,40 arrive the XP5 connect condition Correct connection Replace U301 or LED Yes Yes Yes No Check VCC(+5v) voltage on the power and front board Check there are STB, SDA and SCK signals on XS301 on the front board. 1.C

21、heck whether bad solder exists on U301 and pins of LED, 2.Check whether the circuit connected to K302, K303, K304 and K301 is broken, 3.Check whether R300, R301 and R302 are open-circuit. Trouble shooting chart XP5 (PIN 1 CLK)XP5 (PIN3 DOUT) 5-7 Distorted audio and loud noise No Yes No Yes Yes No No

22、 Distorted audio and loud noise Replace R84 and R94 Check Q3 Replace Q11Q12 Check whether the muting transistor R84 andR94 are normal Yes Check whether the muting transistor Q11,Q12, are normal Checking the U6 leads the feet has no to break to open ? Replace R86,R87 Check the voltage on pin3 or pin5

23、 of U6 is OK. (Should be 2.53.1V) Check whether the U1 or U6 powersupply normal No Yes Check the power supply voltages +12V to the operation amplifying Q3 is normal. Yes Check U6 Replace U1 or U15 No Yes Trouble shooting chart 5-8 Abnormal color of video picture Yes Abnormal color of video picture C

24、heck whether the 3.3V and 1.8V power supply voltages on the decoder board are normal. Check Y2, R20,R27,C22 and C23 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 Tro

25、uble shooting chart change U1 Yes No Check if the video signals on Pin 99,102,103,104, of U1 are normal 5-9 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

26、 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 44 of U1 Check if the power supply voltage to the remote censor is normal Go No No No Yes Yes Yes Correct connection Yes Cha

27、nge U1 IR waveform Trouble shooting chart 5-10 No video picture, no sound. Change CE7, D2. No video picture, no sound. Check if the reset circuit consisting ofCE7, D2 is normal (at a low level for tens of milliseconds, then constantly at 3.3V). Check whether there is 27MHz signal output. Check the l

28、oaded circuit Crystal oscillator Y2 and peripheral components are defected or eroded. No No No Yes Yes Yes 27Mhz waveform Trouble shooting chart Check whether all the voltages from the power board to the decoder board are normal. CVBS(R21 point) waveform Check if there is 128MHz signal output on R67

29、. Check whether short-circuit or bad solder on U4,U5 SDRAM(R67 DCLK) waveform Check U1. No No Reconnect the component in Yes Yes Check if short-circuit and bad solder exist on Pin 99 Yes No A A B B C C D D E E 44 33 22 11 POWER SUPPLY 24 1 5 1 1 5 MAIN BOARD DVP3250K/55 WIRING DIAGRAM 1 1 6 DVD LOAD

30、ER 5PIN*2.0 6PIN*2.0 5PIN*2.5 24PIN*0.5 5PIN*2.5 CVBS COAX Pb Pr XP1 XS201 XP5 XP3 XP4 XP2 P1 P2 1 5 MT1389L AM5888 AUDIO AMP&LPF MOTER DRIVER R L XP303 SWITCH BOARD 2PIN*2.0 2 1 (TCL)TDM-2+SONY KHM313AAM Y 6PIN*2.0 VIDEO LPF&DRIVE 64M SDRAM 16M FLASH 618 XP6 8PIN*2.0 18 KARAOKE AND USB XS601 61 XS3

31、01 6PIN*2.0 LED DISPLAY+ET6202/KEY 2 1 XS302 2PIN*2.0 8PIN*2.0 SP+ LOAD+ TRIN GND LOAD- TROUT GND LIMIT CLK 12V GND 5V GND 5V SP- SL- SL+ CS DATA GND 5V IR GND USB_DP USB_DN GND 5V 12V GND MIC GND POWER_K Remark: XP6 8PIN*2.0 is divided into XP6 3PIN and XP7 5PIN. XP5 6PIN*2.0 is the same as HS 6P P

32、H-6Y/JC20-6Y 150MM XS302 2PIN*2.0 is the same as 2P HS XP6 8PIN*2.0 is the same as 8PIN CABLE WITCH SHIELD XP4 6PIN*2.0 is the same as HS 6P PH-6Y/PH-6Y XP2 24PIN*0.5 is the same as 24PIN HS XP3 5PIN*2.0 is the same as PH-5Y/PH-5Y L=130MM XP1 5PIN*2.5 is the same as 5PIN CABLE TJC3-5Y/SCN-5P L=90MM

33、/ IM OPU 6-1 6-1 A A B B C C D D E E 11 22 33 44 ? C300 C301 C302 C303 C306 C315 C316 CE300 CE301 D301 D302 K302 K303 K304 LED1 R300 R301 R302 R303 R304 R305 R306 R307 R308 R309 R310 R311 R312 R315 R316 R317 R318 R319 REM301 U301 XS301 XS302 B2 B2 B2 B2 B1 A1 B1 B2 B1 C2 C2 D2 D2 C2 D1 A1 A1 A1 B1 B

34、1 B1 C1 B1 B1 B1 B1 C2 C2 B1 C1 C2 B2 C1 A1 C1 A1 B1 GRID6 CLK 5VL GRID3 GRID6 IR IR GRID5 CS POWER_K SEG4 GRID1:7 SEG2SEG2 SEG3 GRID1DATA CLK SEG4 CS 5VL KEY2 SEG6 GRID2 GRID4 KS2 DATA KEY1 SEG5 GRID7 GND GRID7 SEG1:6 SEG5 GRID5 SEG6 SEG3 SEG1 GRID3 GRID4 SEG1 5V GRID2 GRID1 POWER_K1 POWER_K KS1 PO

35、WER_K POWER_K1 5V 5V C300 100P R315 100 ohm C301 100P K302 stop C302 100P R3170/NC U301 ET6202 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 OSC DI/O CLK STB KEY1 KEY2 VDD SEG1/KS1 SEG2/KS2 SEG3/KS3 SEG4/KS4 SEG5/KS5 SEG6/KS6 SEG7/KS7 GND GRID1 GRID2 GND GRID3 GRID4 GND

36、VDD SEG14/GRID5 SEG13/GRID6 SEG12/GRID7 SEG10/KS10 SEG9/KS9 SEG8/KS8 + CE300 47uF C315 47p XS302 CON2(2.0) 1 2 + CE301 47uF R30710K R3190 R30810K R303 4K7 R304 4K7 R3091K K304 open/close R305 4K7 REM301 REM 1 2 3 4 5 IR GND VCC 4 5 C316 0.1u/NC R3101K R3111K R3121K C306 0.1u R300100 K303 play/pause

37、R306 51K R301100 LED1 JDD350501AG 1 2 3 4 5 6 7 8 9 10 11 12 13 GRID1 GRID2 GRID3 GRID4 GRID5 GRID6 GRID7 SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 D3021N4148 R316 0/NC R302100 D3011N4148 XS301 CON7(2.0) 1 2 3 4 5 6 7 R3180/NC C303 0.1u Front Board Electric Diagram for DVP3250K/55 7-17-1 A A B B C C D D E E 11

38、22 33 44 SWITCH BOARD K301 stop 1 2 CN301 1 2 Switch Board Electric Diagram for DVP3250K/55 7-2 7-2 A A B B C C D D E E 11 22 33 44 ?3.5mm C201 C203 C204 C205 C206 C208 C209 C210 C211 CE200 CE201 D30 D31 G1 P600 P601 R200 R201 R202 R203 R205 R206 R207 R208 R209 R210 R211 RP200 U200A U200B XP601 B1 B

39、2 C2 B1 C2 C2 C2 B2 B2 C1 B1 B2 B2 A2 A2 A2 B2 B2 C1 C1 B1 C2 C2 B2 B2 B1 C2 B2 B2 C2 C2 GNDAGND USB_DN GND USB_DN REF MIC GND USB_DP 12V 12VA MIC_OUT 12V REF USB_DPMIC_OUT VCC 12VA 12VA GND VCC 47-EAR024-XX0 KARAOKE P601 KARAOKE INPUT 1 2 3 R202 22K 47-USB003-XX2 USB P600 USB 1 2 3 4 5 6 C203 1000p

40、 D31 5V1 R206 3.9K R209 680 CE200 22uF C210 1uF G1 + - U200A NJM4558 3 2 1 84 + - U200B NJM4558 5 6 7 84 C20647p R20568K R211 100K R210 150 R203 22K R208 1K R200 10K C201 0.1u D30 5V1 C208 1uF C20547p CE201 22uF R201 1.8K C211 1uF R20720K RP200 10K 13 2 4 5 8PIN/2.0mm XP601 1 2 3 4 5 6 7 8 C204 100p

41、 C209 1uF OK+USB+LED Board for DVP3250K/55: 7-3 7-3 5 5 4 4 3 3 2 2 1 1 DD CC BB AA PLEASE USE THE PARTS HAVING THE DESIGNATED PARTS NUMBER WITHOUT FAIL. * CAUTION : THE PARTS MARKED WITH ARE IMPORTANT PARTS ON THE SAFETY. AC INPUT C1 C11 C14 C2 C3 C5 C6 C7 C8 C9 CN1 CON1 CON2 CY1 D1 D10 D2 D3 D4 D5

42、 D7 D8 F1 L1 L2 L6 P2 P3 R1 R10 R11 R13 R2 R3 R4 R5 R7 R8 R9 RV1 T1 TR1 U1 U2 U3 A1 B2 B2 B1 C1 A1 C1 B2 C2 A2 A1 A1 C1 B2 A1 B2 A1 A1 A1 B1 B1 A1 A1 A1 B2 A1 A1 A1 B2 B2 A2 A2 A1 A1 C1 C2 C2 B2 B2 A1 B1 A1 A2 A2 B2 C11 0.1uF/63V CY1 102/400Vac +C6 47uF/25V + C8 470uF/16V L6 ? ? D8 IN4007 D10SR360/S

43、R340 U1 TNY176/177 81 5 6 4 7 3 2 SEN/UV S S Drain S NC BP/M R11 1/6W22 CN1 AC INPUT 12 + +C2 15uF/400V(250V/450V) D1 1N4007 R7 1/6W11.3k 1% D5 FR102 R13 1/6W100k T1EEL19 8 6 3 5 9 12 10 4 7 11 P3 1 D3 1N4007 C5 152/1KV R9 1/6W10k CON1 AC INPUT 12 + L2 6.8uH U3 TL431 2 1 3 F1 T2AL/250ac D2 1N4007 +C

44、1 10uF/400V(250V/450V) TR1 NTC 10&20 R1 NU R5 1/6W12K 1% CON2 6X2.5 HEADER 1 2 3 4 5 6 +5V +5V GND +12V GND -22V R8 1/6W1k P2 1 + C7 1000uF/16V D4 1N4007 R2 1/4W120K U2 PC123X92 12 43 + C3 10uF/50V RV1 10K471 R3 1/4W120K C14 NU C9 104/50V R4 1/6W10k D7 FR102 L1 680uH R10 1/6W100 7-4 7-4 Power Board

45、Electric Diagram for DVP3250K/55 A A B B C C D D E E 11 22 33 44 DRAM I/F S-FLASH AUDIO I/F VIDEO I/F 1 SERVO RF DeCAP. RF Reference SONY 313 Very Important to reduce Noise Chip Decap. RESET Circuit C21 must close to PIN43 of 1389L/K. URST# TO FRONT PANEL Imax=600mA Imax=290mA Imax=300mA standby:87M

46、A standby:27MA G 2SK3018 SC-70 3 21 D S RS-232 Default C10 C16 C17 C2 C21 C22 C23 C24 C27 C28 C29 C30 C31 C32 C33 C34 C35 C36 C37 C38 C39 C40 C41 C42 C43 C44 C45 C46 C48 C49 C83 C84 C85 C86 C87 C88 C89 C90 C91 C92 C93 C94 C95 D1 D1 D2 D1 C1 C1 C1 A1 A1 C1 C1 C1 D2 A2 B2 B2 B3 B3 A3 C3 C3 C3 D3 D4 D4

47、 D4 D4 D4 C4 B4 B1 B1 C1 D1 A1 B1 B2 B2 B2 B3 B3 A3 A4 C96 CE10 CE11 CE12 CE13 CE14 CE15 CE17 CE20 CE31 CE32 CE7 CE8 CE9 D2 D3 F1 FB3 FB4 L10 L6 L9 Q10 Q13 Q15 Q17 Q19 Q20 Q4 Q5 Q6 Q7 Q8 Q9 R101 R102 R126 R127 R15 R16 R19 R20 R23 A4 A2 A3 A3 C4 C4 B4 B3 B3 B2 C1 B1 A1 B1 B1 A1 B2 B3 B3 A3 A2 A3 C4 B

48、2 B3 B3 B1 B1 A2 A2 A2 A3 A3 C4 B3 B3 C3 C4 B1 B1 B1 C1 A1 R24 R25 R26 R27 R28 R29 R33 R34 R35 R36 R37 R38 R39 R40 R41 R42 R43 R44 R45 R46 R5 R50 R51 R52 R53 R54 R55 R56 R57 R58 R59 R6 R60 R61 R62 R63 U1 U2 XP2 XP3 XP4 XP5 XP7 XP8 Y2 A1 A1 C1 D1 A1 C2 A2 A2 A2 A2 B2 A2 A2 B3 D3 D3 D3 D3 A3 A3 B1 D4 D4 D4 D4 A4 A4 A4 C4 C4 C4 B1 C4 A4 B4 B4 C2 A4 A2 B4 A1 E4 B2 D1 C1 CAS# RAS# DQM0.1 MA0.11 DCLK WE# DQ0.15 BA0.1 SF_DO SF_CK SF_DI SF_CS CVBS_OUT V20 IOA SP+