Sim Card - LG GD310 Service Manual

5. TROUBLE SHOOTING
2V62_VIO
R204 R220 R224
100K 100K 100K
MMC_D[1]
MMC_D[0]
MMC_CLK
MMC_CMD
MMC_D[3]
MMC_D[2]
MMC_DETECT
LGE Internal Use Only
2V9_VMME
C210
R221 R206 R201
1U
100K 100K 100K
R226
47
C206
C207
1N
DNI
START
Check All of SIM card voltage
GD310 support
2.9V SIM only
6 pins are
soldered well?
Yes
Check Proper

SIM Card

Assemble
2V9_SIM
R219
4.7K
C246
S8
10
T8
9
T7
8
T6
7
T5
6
CN201
T4
5
T3
4
T2
3
T1
2
S4
1
ST1
17
ST2
18
No
Resolder pin
Yes
Replace Main Board
- 86 - Copyright © 2009 LG Electronics. Inc. All right reserved.
SIM_RST
SIM_CLK
C239 C245 C234
100n 27P 10P DNI
Only for training and service purposes
SIM_IO