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26
LGE Internal Use Only
Only for training and service purposes
10. No Sound – Component Input
- Check the condition of the Component cable connection.
-
Check the system clock (27MHZ,Y171) and the Voltage of VCTP_P(U81)
Check the signal(R,L)
of U211
No Sound
Check the signal (R,L) of U81
Re-soldering or Change the
defect part(U81)
Fail
Pass
Re-soldering or Change the
defect part(U211)
Fail
Check input source cable or Jack(JP351)
Pass
Pass
Check the signal (R,L) of U518
Re-soldering or Change the
defect part(U518)
Fail
Pass
Check the signal of Speaker
Check Speaker connector(JP516)
or harness
Fail
Pass