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Flow Chart of Troubleshooting
7-9. LCD Part (for Color Main )
LCD does not work
Yes
No
Is LCD Contrast set on
Set LCD Contrast on high level
high level in the Menu?
Yes
No
Check the U502
HEA1 pin 2 = 2.8V?
Yes
No
HEA1 pin 19(HWR_N)
Check the U202
21(HA(1)) is OK?
Yes
Replace the LCD Module
Yes
END
7-19
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