Trouble Shooting - No Audio (Analog Tv Audio) - LG 42LE5400 Service Manual
Lcd tv
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Also See for 42LE5400:
- Owner's manual (136 pages) ,
- Specifications (2 pages) ,
- Owner's manual (39 pages)
Table of Contents
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13. Trouble shooting - No audio (Analog TV audio)
Check RF Cable & Signal
ok
Check Tuner 5V Power
L700
ok
Check Tuner 3.3V Power
L701
ok
Check Tuner 1.2V Power
IC700 2 pin : 1.2V
ok
Check SIF Signal
TU700 9th Pin
ok
Check TU_SIF path
Including Q701 TR buffer to LGE3549
ok
Follow procedure
'8. All source audio'
trouble shooting guide.
Copyright ⓒ 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
No
Check IC8003
No
Replace L701
No
Replace IC700.
No
Bad Tuner. Replace Tuner.
No
Replace component
No
Replace IC8003
ok
Replace L8007
LGE Internal Use Only
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Table of Contents
Troubleshooting
