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3. No Video - Digital TV
Check RF Cable
Y
1. Check RF IC(L2606) Power (3.3V)
2. Check IC401 Output voltage(3.3V)
Y
Check SCL/SDA Line(TU2603 #4, #5)
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LG Electronics. Inc. All right reserved.
Only for training and service purposes
N
Replace IC401 &
Recheck
N
Replace TU2603 or IC101
- 17 -
LGE Internal Use Only
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