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4. TROUBLE SHOOTING
Checking Flow
START
Is there the magnet
in the Folder?
YES
Check the soldering
of R358
YES
Voltage at pin 1
of U300 = 2.8V?
YES
Open Folder.
Voltage at pin 1 of U300
=2.8V
YES
Close folder.
Voltage at pin 1 of U300
= 0V
YES
Folder on/off will
work properly
NO
Place the magnet properly.
NO
Resolder R358
NO
Voltage of VEXT at U104
= 2.8V?
YES
Resolder U300
NO
Resolder U300
NO
Replace U300
- 80 -
NO
Replace U104
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