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9-9. LCD Part
LCD does not work
GPIOA25 pin of UCP200
backlight is high
Check soldering between
the board pad and LCD pad
( HEA301 )
Is it working?
Yes
Yes
Yes
Yes
END
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No
Replace the LCD backlight IC
No
Rearrange the soldering pad
(HEA301's connection)
No
Check LCD Module
9-20
Flow Chart of Troubleshooting
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