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20
LGE Internal Use Only
Only for training and service purposes
4. No Display – PC Input
- Check the condition of the PC cable connection.
-
Check the system clock (27MHZ,Y171) and the Voltage of VCTP_P(U81)
Check the signal(R,G,B)
input/output of U351
Repeat A, B Process
Check the signal input/output of U81
Re-soldering or Change the
defect part(U81)
Fail
Pass
Re-soldering or Change the
defect part(U351)
Fail
Check input source cable or jack(JP376)
Check the signal(H/Vsync)
input/output of U376
Pass
Re-soldering or Change the
defect part(U376)
Fail
Pass
Pass