LG GX500 - Page 89

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4. TROUBLE SHOOTING
GX500 Operational Description Revision A
LG Electronics 90/143 LGE Property
Checking Flow
uSD Check Points
-Power is working
-Socket soldering
-Card detect is working
STAR
T
16 pins are
soldered well?
Check Proper SIM
Card
Assemble
Resolder pin
Replace SUB Board
Yes
Yes
No
Check All of SIM card voltage
GX500 support
2.9V SIM onl
y
TP1
Figure 4-24. uSD
MMC-DETECT PIN
MMC_DETECT SIGNAL