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Flow Chart of Troubleshooting
9-3
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9-1-2. LCD Part
10V
TA400
VBATT_4.2V
VBATT_LCD
4
VIN
1
VOUT
MIC94062BC6
EN
3
2
GND
5
GND
6
NC
U403
10V
TA401
RESET_N
LCD displays nothing
TA401 is 'High'?
Is there any signal at
HDC600 #14, #16
F600 : pin #5, #6, #8?
END
NO
Check U403
NO
Change the LCD Module
YES
YES
YES