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LGE Internal Use Only
Copyright ©
LG Electronics. Inc. All rights reserved.
Only for training and service purposes
2. Digital / Analog TV Video
Check RF Cable & Signal
Check Tuner 3.3V Power
L1600
Replace L1600
Check IF_P/N Signal
TU1601 6/7 Pin
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
ok
ok
No
No
No
Bad Tuner. Replace Tuner.
Check input signal f ormat.
Is it supported?
Check AV Cable f or damage
f or damage or open conductor
Check JK1702, CVBS Signal Line
R1707
ok
ok
ok
No
Replace Jack
ok
Check CVBS_DET Signal
R1713
Replace R1713 or R1710
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
No
3. AV Video
Check input signal f ormat.
Is it supported?
Check Component Cable
f or damage or open conductor.
Check JK1702
Y/PB/PR signal Line
ok
ok
ok
No
Replace Jack
Check COMP_DET Signal
Replace R1709 or R1712
No
Check Mstar LVDS Output
Replace Mstar(IC101) or Main Board.
ok
No
4. Component Video
