Problems with Display operation
Maintenance/Troubleshooting
1-53
Is data to turn OFF the display/backlight written in the address of the system
area?
Cause
Data to turn OFF the display or backlight may be written in the address of the system
area.
Solution
Check if data to turn OFF the display
*1
or backlight
*2
is written in the address of the sys-
tem area.
*1
Data to turn OFF the display: A9 when the direct access method is used; and
Address 12 when the memory link method is used. Clear the data written in these
addresses to 0.
*2
Data to turn OFF the backlight: A14 when the direct access method is used;
and Address 11 when the memory link method is used. Clear the data written in these
addresses to 0.
