4. TROUBLE SHOOTING
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Only for training and service purposes
LGE Internal Use Only
Test point Description
Test point
Net name
Description
TP1
+3V_WLAN_WCN
Power for BT/WiFi BB core and WiFi power Amp. (V Batt)
TP2
VREG_MSME_1.8V
Power for BT power Amp. (1.8V)
TP3
VREG_MSME_1.8V
Power for host interface (1.8V)
START
Check the power block
No
Yes
Board Change
Module Check
Yes
No
TP1, 2, 3 is OK?
SDIO ok?
UART ok?
TP3
TP2
TP1