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3
too big screw.
1.20 Care must be taken to guard against dust during assembling or dismantling, especially to avoid
dirt from falling in between the screen and the glass lest it should harm the receiving and viewing
effect.
1.21 There is piece of insulator stuck on the rear chassis corresponding to the power supply board.
It is used to isolate the cool part from the hot part. Please take care to keep it intact lest it should
become a potential safety trouble.
1.22 In addition to plasma screen, the glass is a part of high value. It has such functions as
anti-radiation, adjustment of color temperature etc. Please handle it carefully.
Alignment instructions
1. Test equipment
PM5518 (video signal generator)
VG-849 (VGA and HDMI signal generator)
CA210 (white balancer)
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 observe the display.
Method for entering factory menu:
press “INPUT”, “2”, “5”, ”8” and “0” in turn to enter factory
menu; press “CH+” and “CH-” to select adjustment items and press “VOL+” and “VOL-” to adjust
value items, press “MENU” repeatedly to exit.
Method for software upgrading:
enter factory menu and select “OPTION”, set ISP to 1 or insert
jump wire J1, then you can upgrade on line. After upgrade, set ISP back to 0 or pull out jump wire
J1.
Check DDC, HDCP KEY, FLASH and POWER control IC
Factory initialization setup
IF channel AFT voltage of TV and AGC voltage
White balance adjustment
Performance check
Preset ex-factory
VGA, YPbPr ADC correction
Summary of Contents for PH-50HU31
Page 1: ...PDP TELEVISION PH 50HU31...
Page 10: ...8 6 Select the document then the window will appear as shown below Select...
Page 18: ...16...
Page 20: ...18...
Page 21: ...19 Pin description 1 7 L R input 19 14 L R output 6 10 mute control input...
Page 22: ......
Page 28: ...main board...
Page 29: ...main board...
Page 30: ...main board...
Page 31: ...main board...
Page 32: ...analog board...
Page 33: ...key board...
Page 34: ...IR board...
Page 35: ...AV board...
Page 36: ...Power board A...
Page 37: ...Power board B...
Page 39: ...APPENDIX A EXPLODED VIEW PH50x31...
Page 41: ...9350HU3123 Ver 1 0...