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21
(2) no picture, no sound
(3) with picture but no sound
Check the output voltage of
sockets XP1, XV2
No picture, no sound
Check the color of indicator
light
If XP1 9# is 3.3V?
Blue
Check the power
board
No sound
No picture
Power board problem
Refer to (3) checking
procedure
Refer to (4) checking
procedure
No
Yes
Check the power board
With picture but no sound
Check if the voltage of sound amplifier
of XV2 in main board is normal?
No
Yes
Check if RV12, RV13 inputs
signals
Check NV1 and its
peripheral circuit
Check NV3/NV2/NB12
and their peripheral circuit
Yes
No
Summary of Contents for PH-50HA31
Page 1: ...PDP TELEVISION PH 50HA31...
Page 14: ...12 IC block diagram 1 ZR39760...
Page 16: ...14...
Page 27: ...602 L37HA37 01 11...
Page 28: ...602 32HA37 01 602 32HA37 01 602 32HA37 01 602 L37HA37 01 11...
Page 29: ...602 L37HA37 01 11...
Page 30: ...602 L37HA37 01 11...
Page 31: ...602 L37HA37 01...
Page 32: ...602 L37HA37 01 11...
Page 33: ...602 L37HA37 01 11...
Page 34: ...602 L37HA37 01 11...
Page 35: ...602 L37HA37 01...
Page 36: ...602 L37HA37 01 11...
Page 37: ......
Page 38: ......
Page 40: ...APPENDIX EXPLODED VIEW PH50X31...
Page 42: ...9350HA3110 Ver 1 0...