Transceiver Dc Power Supply Circuit - LG -H815 Service Manual

3.2 Transceiver DC Power Supply Circuit

Checking Transceiver DC Power Supply Circuit
Checking Flow
START
Check TP1
+1V_RF is OK?
YES
Check TP2
+1.8V_RF is OK?
YES
Check next step
LGE Internal Use Only
The Problem may be
Logic part
Refer to Logic trouble
NO
shoot
The Problem may be
Logic part
Refer to Logic trouble
shoot
NO
TP2(1.8V)
U1500
TP1(1V)
TP2(1.8V)
13
3. TROUBLE SHOOTING
Image
BOTTOM
Circuit Diagram
TP1(1V)
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