
3. TROUBLE SHOOTING
- 27 -
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
START
YES
Replace Main B/D
NO
Check TP1(C1508)
Is it 19.2MHz?
XO circuit is Ok . See next page
to check RF signal path.
XO circuit is Ok . See next page
to check RF signal path.
YES
NO
Is it similar ?
Replace X4100 and then check
TP1(C1508)
3.1.1.2 Checking WTR2605 XO circuit