XOCECO PH-42HK6S, Service Manual

Page 1: ...PDP TELEVISION PH 42HK6S...

Page 2: ...tions Alignment instructions Working principle analysis of the unit Block diagram IC block diagram Wiring diagram Troubleshooting guide Schematic diagram APPENDIX A Assembly list APPENDIX B Exploded V...

Page 3: ...eat radiation parts or direct exposure to sunlight Otherwise there will be kickbacks 1 5 In case foreign substances such as water liquid metal slices or others fall into the module carelessly power mu...

Page 4: ...for a long time difference in its brightness and color may occur compared with movable pictures But it doesn t show any problem and the reason is that there is reduced density of fluorescent powder i...

Page 5: ...nalyzer 2 Alignment flow chart The alignment flow chart is shown as fig 1 Fig 1 adjustment flow chart 3 Unit adjustments Connect all the boards according to wiring diagram connect with power and obser...

Page 6: ...A4470 from BG to LL and input 80dB 33 9MHz SECAM signal adjust RP602 to value 1 65V of TP602 then weld J601 3 2 2 IF AGC adjustment Input 184 25MHz RF signal of 60dB to RF terminal adjust RP601 to val...

Page 7: ...nnect J201 again 5 Performance check 5 1 TV function Enter searching menu auto search connect RF TV terminal with central signal source and check if the picture is normal if there are channels be skip...

Page 8: ...RGB of SCART1 AV S Y and S C of SCART2 will also be sent to MST9E89DL their audio signal and YPbPr AV S audio signal via audio switch HEF4052BT selection to MST9E89DL The main IC N304 MST9E89DL is a...

Page 9: ...Y SCART2 C AV S VIDEO TUNER TV V TV SIF AV L R SCART1 V OUT TV L R SCART2 L R OUT AV L R OUT AV OUT CVBS SCART2 V OUT SCART1 L R OUT TV L R PDP TV CONTROLLER MST9E89DL AUDIO SW HEF4052 AUDIO AMP BH35...

Page 10: ...eo de interlacers two scaling engines the MStarACE 3 color engine an on screen display controller an 8 bit MCU and a built in output panel interface By use of external frame buffer PIP POP is provided...

Page 11: ...9 2 TDA4470...

Page 12: ...2 can drive stereo speakers as low as 4 The efficiency of the TPA3120D2 eliminates the need for an external heat sink when playing music The gain of the amplifier is controlled by two gain select pins...

Page 13: ...11...

Page 14: ...Wiring diagram Power board Power board Panel IR board Key board Main board Main power LVDS output Key IR Tuner power Amplifier power Audio output Speaker SCART connection board SCART signal SCART sign...

Page 15: ...d if interfered possibly by the equipment like transmitting antenna non professional radio station and cellular phone 1 2 TV set Symptoms Possible cause Unable to switch the power on Check to see if t...

Page 16: ...batteries are installed in the reverse order Check if the battery is effective Check the distance or angle from the monitor Check if there is any obstruct between the remote control and the TV set Che...

Page 17: ...er supply board Press POWER button on the unit or remote controller and check the indicator Check if the PIN3 of X401 on main board is high level Check if the PIN11 of X403 in main board is high level...

Page 18: ...off the TV turn on again display picture Adjust main board again Which channel is no signal Check N304 and its periphery Check if TUNER601 pin11 IF output is normal Check N602 and its periphery no yes...

Page 19: ...are normal Check power board Check the wave of pin 5 6 of N203 Check the wave of N602 pin 24 Check the wave of TUNER601 pin 11 Check N203 and its periphery Check N304 and its periphery Check N602 and...

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Page 30: ...74470001 TPA3120 D2 5273120001 SCART connection board 6HK0304610 Key board 6HU0520510 IR board 6HU0520510 Power filter board 6FK0105110 Power board 6HU0522010 Remote control 6010Y06000 Panel 520542220...

Page 31: ...APPENDIX B Exploded view PH 42X6...

Page 32: ...ss 14 upper Push board right 15 upper Push board left 16 leftPush board 17 Screen 18 ear frame leftupper rightbottom 19 bracket right 20 ear frame rightupper leftbottom 21 Trans connecting bracket lef...

Page 33: ...racket right 38 bottom Push board left 39 bottom Push board right 40 rightPush board 41 button 42 Button board assy 43 Power switch 44 power bracket 45 Power button 46 Speaker box cover 47 Line clasp...

Page 34: ...9342HK0610 Ver 1 0...