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42LG70YR (CHASSIS:LP81D) - LG TV Service Manual (repair manual). Page 15

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- 15 -
1) Symptom
 
 
 
 
 
 
1
)
 
N
o
 
OSD and image occur at screen.
      2) It maintains the condition where the front LED is green
.
2) Check process
2. No Raster
No
No
No
No
No
Yes
Yes
Yes
CN700(PDP/LCD)
Replace the VSC.
Does mimute 
discharge a Module?
Is the Link cable
normal?
Is the IC801 and 
IC1300's output normal?
Check the LCD Module
Reconnect the 
Panel line cable
(P1500, P1501)
Is the inverter
/VaVs on?
Is output the normality
Low/High voltage
except Stand-by 5V?
Replace the 
Power board
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