LG KP500 Service Manual page 104

5.15.5 Checking PAM Control Signals
8
TP2(TXON PA)
SM_IN
7
VRAMP
6
VBATT
5
RSVD1
4
BS
3
PCS_IN
2
MODE
1
TP3(PA_MODE)
TP3(PA MODE)
TP1(PA LEVEL )
Table 4. PAM Mode Operation
MODE
MODE
GMSK
8PSK
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Only for training and service purposes
6 R 2 0 7 4
6 C 0 1 0 1 p 0
6 R 3 0 7 4
6 R 4 0 7 4
6 R 5 0 7 4
6 C 2 2 6 C 3 2
3 p 9 D I N
Figure 24. PAM Control Signals
Checking Points
Figure 25. Transceiver Output
MODE
MODE
LOW
HIGH
X T O
B L
A P L _
A P B _
6 C 3 1 0 1 p 0
H B N A
A P M _
6 C 4 2 6 C 5 2 6 C 6 2
TP1(PA LEVEL)
D I N D I N D I N
TP2(TXON PA)
PA_LEVEL
PA_LEVEL
Ramp Burst Control
Control Amp bias
- 105 -
5. Trouble shooting
_ N A P
N A _ D A P _ M N I
V E L E
N A D
_ D A P _ M N I
O D E
TXON_PA
TXON_PA
HIGH
HIGH
LGE Internal Use Only