LG L15V26 Training Manual page 23

15" AUDIO
FLOWCHART
PCB
TROUBLESHOOTING DIAGRAM
Directview LCD Training
Audio
Amplifier
Processor
Composite
Audio Inputs
(Composite, RF, PC)
No Sound
Check volume
level and mute
Check voltages of
the Reset IC (IC603)
Present
Check voltages of
Audio Processor
(IC601)
Present
Check B+ voltages
Problem lies
Present of Audio Amps
elsewhere
(IC604/605)
CIRCUIT DESCRIPTIONS
Audio
Headphone
Jack
Speakers
Ok
Replace Reset IC
Absent
(IC603)
Replace Audio
Absent
Processor (IC601)
Check Power
Absent
Supply
23
Circuit Descriptions