LG LG-K430DSF - 3.2 Checking Transceiver DC Power Supply Circuit Block

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3. TROUBLE SHOOTING
3.2 Checking Transceiver DC Power Supply Circuit Block
The MT6169 operating voltages used two voltage sources 1.8V and 2.8V
Checking Flow
Circuit Diagram
Image
TP1
Main
Bot
TP1
TP2
TP2
START
Check TP1
+2.8V_RF is OK?
The Problem may be
Logic part
NO
Refer to
Logic trouble shoot
YES
Check TP2
The Problem may be
+1.8V_RF is OK?
NO
Logic part
Refer to
Logic trouble shoot
YES
Check next step