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23
2. Troubleshooting guide
2.1. No raster
Turn on power supply, check
if the red indicator is light in
the STANDBY?
Check if X303 PIN3 (5V) of
main board is normal?
Check STANDBY circuit of
power supply board
Press POWER button on the
unit or remote sensor control
and check the indicator.
Check if the PIN27 of X304
on 01 board is high-level?
Check if the PIN11 of X303 in
main board is high-level?
Check power
supply board
yes
no
no
red
blue
no
yes
Replace 01 board
Replace
N102
Check if Va, Vs of X520
1
,
X520
9
on the power board
is normal?
no
yes
Check the panel
no
yes
Check the
power board
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...