Sim Detect Trouble - LG -S310 Service Manual

4. TROUBLE SHOOTING

4.5 SIM Detect Trouble

Check the SIM power and signal
-VSIM_PWR (TP1)
-SIM_RST_N (TP2), SIM_CLK (TP3), SIM_DATA (TP4)
VSIM_PWR
SIM_RST_N
SIM_CLK
SIM_DATA
Checking Point
LGE Internal Use Only
TP1
4.7K
R306
Figure 4.5.1 SIM Circuit
9
T8
10
S8
TP4
TP
TP2
ICVL0518050FR
- 68 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
C301 22p
C302 22p
C304 1u
VA307
TP
TP4
TP2
TP1
Only for training and service purposes