Philips-DVP-3560-K-Service-Manual(1) 电路图 维修手册.pdf
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1、TABLE OF CONTENTS Page Version 1.0 Service Manual . Technical Specifications.1-2 . Safety Instruction, Warning 2) Press the Setup button on the remote control, then the setup interface will be displayed on the TV screen; 3) Move the down cursor on remote control to select Preferences and press 13893
2、1 on the remote control; 4) Then move the up or down cursor to select the region code. Note: Restart after above steps. 5-1 Spindle motor does not move Yes Yes No No No No Yes Check whether “MO_VCC” (+5V) voltage is normal. Correct connection Check the MO_VCC power supply Check/Replace Q5,Q6,Q7,Q8.
3、Check/ Replace U20. Check opu focus 1. Check U20 pin17 FOCUS_PWM signals 2.If there are F+, F-, T+ and T- signals output from U2. Check/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.Wheth
4、er voltage on pin 15of U20 varies between 0 and 3.3V (3.3V for CD and 0V for DVD), 2.Whether peripheral components are eroded or badly 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 powe
5、r board Check the power supply on the power board is normal. Check/Correct connection Whether the connection to K303 is broken. Correct the connection Replace U20. 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
6、 difference on Pin 39 PCON of U20. Trouble shooting chart 5-3 All output voltages on the power board is 0V or deviated. No No No Yes No U1(PIN 8 - Drain waveform) Replace F1 Replace C1&C2 if D1, D2, D3, D4 are normal. Check/ replace U20. Check whether U20 are eroded. All output voltages on the power
7、 board is 0V or deviated Check whether there is 300V on C1 or C2. Check whether 100KHz oscillating signal on Pin6 of U20 Check if +5V and +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 C
8、heck 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.Check voltage on pin 15 of U20 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
9、between 24P and the loader. Check U20 and peripheral components Re-solder or replace the defective parts Check the connection between U20 Correct connection Replace U20 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 p
10、in17 of XP2. (The normal RFO signal is a clear reticulated wave) Trouble shooting chart Check U20, U2, and peripheral components are eroded or badly soldered. 5-5 Only DVD disc or only disc except DVD can be played No No No Yes Only DVD disc, or only disc except DVD can be Played. Check the FFC conn
11、ection between 24pin and the loader. Check the loaded circuit Check the solder status on U20 and peripheral components Check whether there is voltage variance on pin 17 of U20. check if bad solder exist on U20 and peripheral components Replace the bad spare parts Check whether pins of U20 and periph
12、eral components are badly soldered, defected Check Q5, Q7 whether in good condition Yes Yes Yes Go Correct connection Change U20 or the loader. No Yes Check laser voltage (2.4V) output on L10, if pin10 of U20 is at low level. Trouble shooting chart No 5-6 No display on LED, and buttons do not work N
13、o 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 supply board top a power supply for should electric circuit Check the U20s pin 36,37,38 arrive the XP5 connect condition Correct connection Replace U30
14、1 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.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 R300, R
15、301 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 Distorted audio and loud noise Replace R167?R152 Check Q3 Replace Q48,Q50, Check whether the muting transistor R167?R152 are normal Yes Check whether the mu
16、ting transistor Q48,Q50, are normal Checking the U12 leads the feet has no to break to open Correct connection Replace R76, CE38, C152 Check the voltage on pin3 or pin5 of U12 is OK (Should be 2.53.1V) Check whether the U1 or U12 powersupply normal No Yes Check the power supply voltages +12V to the
17、operation amplifying Q3 is normal. Yes Check U12 Replace U20 No Yes Trouble shooting chart 5-8 Abnormal color of video picture Yes Abnormal color of video picture Check 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
18、 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 Trouble shooting chart Change U20 Yes No Check if the video signals on Pin 98,100,101,102, of U1 are normal 5-9 Remote reception is insensi
19、tive 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 control. REM301(PIN1 - RC wave
20、form) Check if there is IR signal on pin 33 of U20 Check if the power supply voltage to the remote censor is normal Go No No No Yes Yes Yes Correct connection Yes Change U20 IR waveform Trouble shooting chart 5-10 No video picture, no sound. Change CE7, D2. No video picture, no sound. Check if the r
21、eset 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 loaded circuit Crystal oscillator Y2 and peripheral components are defected or eroded. No No No Yes Yes Yes 27Mhz waveform Trouble sho
22、oting 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. Check whether short-circuit or bad solder on U4,U5? U8? U7 SDRAM(R67 DCLK) waveform Check U20. No No Reconnect the component in Yes
23、 Yes Check if short-circuit and bad solder exist on Pin 98 Yes No A A B B C C D D E E EE DD CC BB AA GND 5V IR DV33 STANDBY_LED U186 U20 U10 U176 LOAD+ LOAD- TROUT GND TRIN 40-D89G2U-MA*2G MT1389G 128 PIN GPIO LIST VR_CD VR_DVD NAMEPINFEATURES TRAY_OPEN TRAY_CLOSE FG / GPIO2 UP1_6 UP1_7 GPIO3 GPIO4
24、GPIO6 14 15 18 28 29 34 35 31 TRIN 107 108 TxD RxD 120 GPIO34 GPIO35 RFIN / OPOUT V_CVBS 102 STBY TROPEN HDM_SCL HDMI_SDA LDSW V_R/V V_B/U V_G/Y 101 LIMIT 100 98 TROUT VIDEO/YUV STANDBY_LED U_CEC GPO57 GPIO9 GPIO8 GPIO7 37 38 39 POWER_K PCON GPIO1081HPD AUDIO_ALF VSCK AUDIO_ARS 30 36 GPIO11 GPIO13 A
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