LG 65UX970H Service Manual page 29

4. Digital RF Trouble Shooting guide
Check RF Cable
Y
Check tuner 5V power L6701
Y
Check IIC Signal
TU6700 #4, 12Pin
Y
Check IF Signal
TU6700 #6, 8, 16 Pin
Y
Check X101
and application circuit
Y
Replace IC101
Copyright © LG Electronics. Inc. All rights reserved.
Only for training and service purposes
N
Check L6701
N Check IIC line and level shifter
circuit
N
Check tuner application circuit or
replace tuner.
N
Replace X101
- 29 -
Y
N
Replace L6701
Replace IC2305
LGE Internal Use Only