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PF-60A30
Service manual
LG PF-60A30 Service Manual page 22
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Troubleshooting
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NO PICTURE/NO SOUND
(RASTER OK)
No
Is the CVBS signal at
Pin 4 of P101A normal?
Check IF Board
NO PICTURE Block
NO SOUND Block
NO RASTER
(SOUND OK)
Check the voltage of
CPT,HV, SCREEN
Abnormal
Check/Replace
T401
Does the Auto search
operate normal?
Yes
Yes
OK
GO TO
Check the voltage of
CPT Heater
Normal
Normal
Check/Replace
CPT Board
No
Check the voltage
of Tuner (33V, 5V)
OK
Check pins 20,21,
22,39 of IC1
Abnormal
Check the Heater pulse
at pin 3 of P45PR
Normal
Check/Replace
Connector, FR402
- 22 -
NG
Check/Replace
ZD101, ZD102,
R106, R108
Abnormal
Check/Replace
T401
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