LG LG-X230DS - Checking Sub Camera Block

LGE Internal Use Only
3. TROUBLE SHOOTING
3.14.2 Checking sub camera Block
Sub camera control signals are generated by MT6737M(U101). And powered by PMU(U401).
ImageChecking Flow
Start
Check Sub
camera mod
ule
Check
J1002 solderi
ng
change
camera module
Sub camera function o
k
Re-solder or change
J1002
Check TP1~
TP3 Voltage
Check MCL
K signal
Check I2C&M
IPI signal
Re-solder or change
U401
Re-solder or change
R1028,U101
Re-solder or change Z1
006,Z1007,Z1008, R304,
R305,U101,
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
Circuit Diagram
: Next Page
TP8
TP7
TP5
TP6
TP3
TP2
TP1
TP9
TP10
3.14 Checking camera Block
TP12
TP11
Copyright ⓒ 2017 LG Electronics. Inc. All right rese
rved. Only training and service purposes
TP4
63