Philips-DVDR-3375-Service-Manual电路原理图.pdf
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1、. Technical Specifications.1-2 . Mechanical and Dismantling Instructions.2-1 . Region Code, Software Version 50-60 Hz Consumption: 28 W (typical) Standby power consumption: button to confirm, then screen will display: Upgrading software, please wait. Do not switch off the power. 4) The upgraded disc
2、 will automatically out when the upgrading complete, then take out the disc and power off the set. C. Read out the software versions to confirm upgrading 1) Power up the set and press button on the remote control. 2) Press button. The software version and other information are display on the TV scre
3、en as follows: Build: XXX XXX XXX XXX XXX C ware: XXXX Nav: XXXX (Software version of decoder) XX XX XX XX XX:XX:XX (Updated date) Ver: XXXX (Software version of Servo) Code: XXX ( Region code ) Region Code, Software Version& Upgrades Caution: The set must not be power off during upgrading, in that
4、case the decoder board will be damaged entirely. 3-1 Trouble Shooting Chart No display on VFD, and buttons do not work 4-1 No No No Yes Yes No display on VFD, and buttons do not work Check every supply voltage on main board is normal Refer to Power supply board part Check the U3s pin 2,4, 7 arrive t
5、he U3s pin 6,8,9 connect condition Correct connection Replace U2 or VFD Yes Yes Yes No Check-24V+12V, VCC (+5v) voltage on the power and front board Check the front board signals on R24, R25, R26. (SCK,SDA,STB) 1. Check whether bad solder exists on U2 and pins of VFD, 2. Check whether the circuit co
6、nnected to K2, K3, K4, K5 and K6 is broken. Fix the connection JP1 on front board and CN1 on power board Trouble Shooting Chart No digital audio output Yes Yes No No Yes Fix the connection JP8 on AV board and JP2 on OP board Check / Replace R131 C133. Check the R130 (digital audio) on the AV board i
7、s normal. Check the P14 of U10 on the AV board is +5v Check the +5v power supply on the AV board Check the P1 of U10 (digital audio) on the AV board is normal. Check P26 of JP2 on Main board signals is normal Fix the connection JP8 on AV board and JP2 on Main board Yes Yes No Go Check the FB8 (digit
8、al audio) on the OP board is normal. No digital audio output No 4-2 Yes Yes Trouble Shooting Chart Remote control does not work Go Ye s No No Remote control does not work Yes Replace U2 on the power board Check whether keys on the front board work or not. Replace U4 on the power board Replace U1. Ye
9、s Check the front board whether P1 of U4 has signal when pressing key on the remote 4-3 Trouble Shooting Chart Cant read disc or cant open the disk door Yes Check the connection of the 4PIN cable from CN5 on the Power Board. Cant read disc or cant open the disk door Check 40pin cable from main board
10、 connection to the loader is normal Check the peripheral components near the J3 on the main board No Go Check whether the DVD loader running is normal Fix the connection the 40pin cable No Yes 4-4 Trouble Shooting Chart No VFD display Check whether the voltage between VFD F1&VFD F2 is AC3V Go No No
11、No VFD display Yes Fix the connection power board CN1& front board JP1 Check whether the voltage +12V/+5V on the front board is normal Check DC12V to AC 3V switch circuit Replace U2&VFD. Yes Check whether the voltage -24V is normal No Check the FB1 on the front board 4-5 Trouble Shooting Chart Fan d
12、ont work Check the cable connection fan to Power board CN3 Go No No Fan dont work Yes Check R9 on Power board Check on Power board whether P1 of CN3 is +12v Replace the cable Replace Fan Yes 4-6 Trouble Shooting Chart Cant read disc or cant open the disk door Yes Check the connection of the 4PIN cab
13、le from CN5 on the Power Board. Cant read disc or cant open the disk door Check 40pin cable from main board connection to the loader is normal Check the peripheral components near the J3 on the main board No Go Check whether the DVD loader running is normal Fix the connection the 40pin cable No Yes
14、4-7 A A B B C C D D E E 4 4 3 3 2 2 1 1 FLASH LOAD ATAPI CVBS VIDEO DECODER AUDIO IN 3 C FORNT PANEL KEY IR & VFD AUDIO IN 2 C WM8776 POWER Pr Pb BUFFER AUDIO IN 1 Y AUDIO RCH Pb WM8776 AUDIO ADC 1394 PHY TUNER EEROM Pr AUDIO LCH DMN8602 TUNER SDRAM Y 1EEE1394 S/PDIF BUFFER CVBS Y AUDIO DAC Y DVDR33
15、75 Block Diagram 5-1 5-1A A B B C C D D E E 4 4 3 3 2 2 1 1 40-DR3375-AVC2G 40-DR3375-FBA2G 40-DR3345-PWA1X 40-DR3375-SWA1X 40-TDK600-MAB4X 40-DR3345-OPA1X 40-DR3375-INE1X 40-TDK600-TUC1X 05-BDRL06-000 DVDR3375 WIRING DIAGRAM GND A_M SDA LOUT AO_D0 +5VSTB GND Pr/R_OUT VCC PW_SW GND GND VTUN_STB GND
16、G RST_AUD GND +12V GND AO_SCLK AO_IEC958 GND AI_FSYNC C Pr/R_IN D_FM TV_AFT GND F_C_IN MIC_DELAYA AIN_L_F Y_OUT VCC TV_IF +5V S_G P_C TV_SCL GND AI_MCLKO R +3.3V CLK CTPA+ CTPB+ INT_FB IDS_SDA Pb/B_IN GND TV_V5 CVBS_OUT GND F_Y_IN R/Y_IN GND MIC_DELAYB GND +5V TV_AO GND GND +3.3V AI_D0 GND F_CVBS_IN
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