3. TROUBLE SHOOTING
3.1.1.2 Checking XO circuit
START
Check TP1(C1501)
YES
XO circuit is Ok . See next page
Is it 19.2MHz?
to check RF signal path.
Refer to Figure 3.1.1(a)
NO
Replace X4100 and then check
TP1(C1501)
YES
XO circuit is Ok . See next page
Is it similar ?
to check RF signal path.
NO
Replace Main B/D
Figure 3.1.1 (a)
LGE Internal Use Only
- 28 -
Copyright © 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes