Gemster Troubleshooting - LG LST-3410A Service Manual

10. GEMSTER TROUBLESHOOTING

No Guide On
display
Check AR300~AR305 soldering
Check R203,R300,R301 soldering
Yes
IC112(3-Pin)
1.8V OK
Yes
X100
Clock ouput 12MHz
OK
Yes
R113
Clock 108MHz
OK
Yes
IC110(2-Pin)
Clock in 108MHz
OK
Yes
IC110(4-Pin)
+5V OK
Yes
IC110(7-Pin)
+3.3V OK
Yes
Try agine Guide On
display
No IC112
(1-pin) +3.3V input
OK
Yes
Check IC112
No
Check X100
No Check IC102,IC103 soldering
Check AR306~AR322 soldering
No
Check R115 Soldering
No
Check IC148 on main board
No
R710
Short ?
Yes
Check R710
No
Check J101
No
Check IC110
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