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Test menu
Select "7. MASK ROM".
Screen displays as
shown in the right.
Display <Menu 4>.
8. LCD TEST
Select "1. LCD TEST".
Screen displays as
shown in the right, then
checks the LCD.
Press "
Press "
Operation
MASK ROM Testing...
MASK ROM TEST - OK
Hit Any Key!!
Goes back to Menu 2.
<Menu 4>
1. LCD TEST
".
".
— 40 —
Result
MASK ROM Error
XXXX:YYYY AA BB
XXXX :Segment Address
YYYY :Offset Address
AA
BB
Press "
Menu 2.
No Display
Black
No Display
Fault
:Write Data
:Read Data
" to return to
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