XOCECO PH-50HU31S Service Manual Download Page 1 | Manualshive

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PDP

TELEVISION

PH-50HU31S

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Summary of Contents for PH-50HU31S

Page 1: ...PDP TELEVISION PH 50HU31S...

Page 2: ...nstructions Adjustment instruction working principle analysis block diagram IC block diagram Wiring diagram Troubleshooting guide Schematic diagram APPENDIX A Assembly list APPENDIX B Exploded view 1...

Page 3: ...as areas in the vicinity of water bath room laundry water chute of kitchen sources of fire heat radiation parts or direct exposure to sunlight Otherwise there will be kickbacks 1 5 In case foreign sub...

Page 4: ...below Temperature Scope for operation 0 50centigrade Scope for storage 15 60centigrade Humidity Scope for operation 20 80 Scope for storage 20 80 1 15 If a fixed picture is displayed for a long time d...

Page 5: ...rature etc Please handle it carefully Alignment instructions 1 Test equipment PM5518 video signal generator VG 849 VGA signal generator CA210 white balancer 2 Alignment flow chart The alignment flow c...

Page 6: ...ustment Disconnect J401 B face input 38 9MHz PAL signal of 80dB from J401 near the socket Adjust L404 to value 0 9V of TP402 Enter factory menu adjust TDA4470 from BG to LL input 33 9MHz SECAM signal...

Page 7: ...y when upgrading it needs to web J1 of 01S board Please disconnect J1 again after upgrading 5 Performance check 5 1 TV function Enter searching menu auto search connect RF TV terminal with central sig...

Page 8: ...em via audio switch N302 HEF4052BT selection after also sent to MST9E88L The main IC NS4 MST9E88L is a high performance and fully integrated IC which can realize HDMI processing video demodulating vid...

Page 9: ...AV L R SCART1 V OUT TV IIS SCART2 L R OUT SCART2 V OUT CVBS SCART1 L R OUT TV L R HDTV SW PI5V330 LCD TV CONTROLLER MST9X88LD AUDIO SW HEF4052 HP AMP BH3547F AUDIO AMP MP7722 HEAD PHONE EDID 24C02 EEP...

Page 10: ...video and audio decoder a video de interlacer a scaling engine the MStarACE 3 color engine an on screen display controller an 8 bit MCU and a built in output panel interface With external frame buffer...

Page 11: ...Shutdown pop elimination Short circuit protection Mute Standby The MP7722 utilizes a single ended output structure capable of delivering 2 x 20W into 4 speakers MPS Class D Audio Amplifiers exhibit t...

Page 12: ...10...

Page 13: ...for multi standard video sound IF VIF SIF signal processing in TV VCR and multimedia applications The circuit processed all TV video IF signals with negative modulation e g B G standard positive modul...

Page 14: ...12...

Page 15: ...IF adjust Wiring diagram 13...

Page 16: ...y board Press POWER button in the unit or sensor control and check the indicator Check if the PIN27 of X304 in 01 board is high level Check if the PIN11 of X303 in main board is high level Check power...

Page 17: ...f the TV turn on again display picture Adjust main board again Which is no signal of channels Replace main board Check if 1VPP signal and noise wave of X405 PIN 8 in the TV board Check if output IF si...

Page 18: ...8 13 and 18 voltage of N405 is normal Check power supply Check PIN3 and PIN7 output wave of N405 Check PIN62 wave of NS4 Check PIN11 wave of TUNER1 Replace TUNER1 Replace N405 Replace NS4 Replace Z406...

Page 19: ...page 1 of 4...

Page 20: ...page 2 of 4...

Page 21: ...page 3of 4...

Page 22: ...page 4 of 4...

Page 23: ...interface connector...

Page 24: ...KEY board...

Page 25: ...IR receiver board...

Page 26: ...TV board...

Page 27: ......

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Page 29: ...n board 6HU0580110 NS4 MST9E88L 5270988002 Interface board 6HU0512910 Key board 6HU0670510 IR board 6HU0670910 Power filter board 6FK0105110 Power board 6HU0592010 Remote control 6010Y03502 Panel 5205...

Page 30: ...APPENDIX EXPLODED VIEW PH50X31...

Page 31: ...PU board 11 power switch bracket 12 key board 13 wall mounting bracket 14 back cabinet 15 back baffle 16 speaker back cover left 17 speaker back cover right 18 stand 19 speaker 20 IR board 21 power co...

Page 32: ...9350HU3111 Ver 1 0...

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