LG KS660 Service Manual page 108

GSMK Control Signal
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Checking Flow
Check Control Signals
(TP1, TP2, TP3)
Signals are
Normal ?
Yes
PAM Control Signal is
OK.
See next page to check
FEM & Mobile SW Circuit.
TP1(PA LEVEL)
TP2(TXON PA)
TP3(PA MODE)
TP1(PA LEVEL)
TP2(TXON PA)
TP3(PA MODE)
- 109 -
4. TROUBLE SHOOTING
Check
No
PMB8877(U100)
8PSK Control Signal
TP2(TXON PA)
TP1(PA LEVEL)
TP3(PA MODE)
TP3(PA MODE) : R605
TP1(PA_LEVEL) : R403
TP2(TXON_PA) : R602
LGE Internal Use Only