4. TROUBLE SHOOTING
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Copyright © 2012 LG Electronics. Inc. All right reserved.
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?
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