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Flow Chart of Troubleshooting
10-1-6. LCD backlight
Backlight does not work
Backlight ON "TIME"
mode in the menu?
Check conecting
between PBA and LCD
Check U204 pin #1 =
LED+
LED-
C225
Yes
conector
Yes
6V ?
Yes
END
R242
R257
No
Select backlight "15 sec" mode
No
No
Check the LCD
U204
L201
SW 6
1
VOUT
VIN
2
5
GND
R241
3
4
FB
CTRL
C224
10-10
Check FPCB
VBAT
LED_EN
C223
R258
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