LG 32LH70YR Service Manual page 16

No Raster On AV (Video, S-Video)Signal
Pass
Check Input source
Cable And Jack
Pass
Check The Input/Output
Of JK101, JK201
Pass
Check the Input/Output
Of P401
Pass
Check the Input/Output
Of IC800
Pass
Repeat [A], & [B] Process
No Sound
Check The Input Sourse
Pass
Check The Input/Output
Of IC600
Pass
Check The Speaker
Pass
Check The Speaker Wire
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Re-soldering or
Change the defect part
Fail
Re-soldering or
Change the defect part
Fail
Check FFC Cable
Re-soldering or
Change the defect part
Fail
Fail
Fail
Fail
No Signal On TV(RF) Signal
Pass
Check Input source
Cable And Jack
Pass
Check The Input/Output
Of TU500
Pass
Check the Input/Output
Of P401
Pass
Check the Input/Output
Of IC800
Pass
Repeat [A], & [B] Process
Change The Source Input
Re-soldering or
Change the defect part
Change Speaker
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Re-soldering or
Change the defect part
Fail
Re-soldering or
Change the defect part
Fail
Check FFC Cable
Re-soldering or
Change the defect part
Fail
LGE Internal Use Only