LG C1150 Service Manual page 81

4. TROUBLE SHOOTING
Checking Flow
START
Check the magnet
in the folder side.
YES
Voltage
at Pin 6 of U103
= 2.8V ?
YES
Open Folder.
Voltage at Pin 1 of U103
= 2.8V ?
YES
Close Folder or
get close any magnet to U103
Voltage at Pin 1 of U103
= 0V ?
YES
Does it work properly ?
FOLDER WILL WORK
PROPERLY
Place the m agnet properl y.
NO
Voltage VEXT of
NO
U102 =2.8V?
YES
Resol der U103.
Resol der R142 & U103.
NO
NO
Repl ace U103.
Redownload software or C hange the main b oard.
- 82 -
NO Repl ace U102.