LG KG280 Service Manual - Page 66
SIM Card Interface Trouble
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4. TROUBLE SHOOTING 4.10 SIM Card Interface Trouble TEST POINT Figure 19 J300 C317 CIRCUIT 2V85_VSIM 2V85_VSIM SIM CONNECTOR SIM_DATA R315 15K C316 NA R303 J300 NA 9 GND4 GND3 GND5 GND2 8 10 6 IO CLK 7 3 5 VPP GND1 RST VCC 2 4 1 HSSC-6p-23 ENSY0014601 C317 C318 C319 220n 1000p NA SIM_CLK SIM_RST Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 67 - LGE Internal Use Only
LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc.
All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 67 -
4.10 SIM Card Interface Trouble
TEST POINT
CIRCUIT
C317
J300
SIM CONNECTOR
220n
C317
R303
NA
NA
C319
2V85_VSIM
3
CLK
GND1
4
7
GND2
GND3
8
9
GND4
GND5
10
6
IO
RST
2
VCC
1
5
VPP
ENSY0014601
J300
HSSC-6p-23
1000p
C318
C316
NA
2V85_VSIM
R315
15K
SIM_CLK
SIM_DATA
SIM_RST
Figure 19