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Flow Chart of Troubleshooting
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9-19
9-9. LCD part
LCD does not work
Yes
Is BACKLIGHT set Always
ON in the Menu?
Set BACKLIGHT on Always On
No
Yes
Put the LCD module on SLC300(Sub)
No
Is the LCD FPCB
connected in SLC300(Sub)
Yes
Replace U303(Sub) (at 2.8V) or
U304(Sub) (at 3.0V)
L300(Sub) ≒ 2.8V and
L301(Sub) ≒ 3.0V ?
No
Yes
Is R223(Sub), R232(Sub)
and R300(Sub)
placed in sub board ?
Replace R223(Sub), R232(Sub) and
R300(Sub)
No
Yes
Is Slide FPCB OK ?
No
Replace the Slide FPCB
Replace the LCD Module
Yes
Not OK
Check the U503, C522, U204(Sub)
END