LG KP500 Service Manual page 105

5. Trouble shooting
Figure 26. GSMK Control Signal
LGE Internal Use Only
Checking Flow
Check Cont rol Signals
(TP1, TP2, TP3)
Signal s are
Normal ?
Yes
PAM Control Signal is
OK.
See next page to chec k
FEM & Mobile SW Circuit.
TP1(PA LEVEL)
TP2(TXON PA)
TP3(PA MODE)
TP1(PA LEVEL)
TP2(TXON PA)
TP3(PA MODE)
- 106 -
Check
No
PMB8877(U100)
Figure 27. 8PSK Control Signal
TP2(TXON PA)
TP1(PA LEVEL)
TP3(PA MODE)
TP3(PA MODE) : R605
TP1(PA_LEVEL) : R403
TP3(PA MODE) : R605
TP2(TXON_PA) : R602
TP1(PA_LEVEL) : R403
TP2(TXON_PA) : R602
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