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4. TROUBLESHOOTING
Checking Flow
Check the magnet
in upper side
Voltage at Pin 6 of U402
Open slide.
Voltage at Pin 1 of U402
Close Folder or
Voltage at pin 1 of U402
Does it work properly ?
FOLDER WILL WORK
PROPERLY.
START
No
Yes
No
= 2.8V ?
Yes
No
= 2.8V ?
Yes
No
=0V?
Yes
No
Yes
Place the magnet
Voltage 2V8_EXTof ABB
= 2.8V?
Yes
Resolder U402
Resolder R402 & U402
Replace U402
Re-download software or
Change the main board.
- 92 -
No
Replace ABB(U101)
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