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3.8 BT&WIFI PART
3.8.1 BT&WIFI Trouble Shooting
BT&WIFI control signals are generate WCN 3620
Test point
TP1
TP2
TP3
LGE Internal Use Only
START
Yes
Check ANT5101
Yes
Check TP1,2,3,
TP1 C5109 is 1.8v
TP2 C5103 is 1.3v
TP3 R5301 is 3.3v
Yes
Check U5100
Net name
+1V8_VREG_L6
VDD_LN
VBAT_FEM
ANT 5101 : Ant. Contact
U5100 : BCM4334
U4100 : PM8926
No
Remove the foreign substance
No
Power for BCM4334 digital I/O circuits
Power for BCM4334 analog, digital circuits.
Power for WLAN driver amplifier circuits
Power for WLAN 2.4GHz PA circuits
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Copyright © 2014 LG Electronics. Inc. All right reserved.
3. TROUBLE SHOOTING
in ANT5101
Check U4100
Description
Only for training and service purposes
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