OL3020 User Manual
16
1. Press
‘
▼
/#’ or ‘
▲
/*’ to set the desired contrast.
2. Press
‘
MEM
.’ key to confirm. After confirmation, the display returns to standby.
During programming, Press ‘CHAN’ to return to idle mode. Or, if no key is
pressed for 20 seconds, you will be returned to idle mode.
Display contrast can also be set by pressing ‘
FLASH
’ during standby (idle) mode:
3. Press
‘
▼
/#’ or ‘
▲
/*’ to set the desired contrast.
4. Press ‘
MEM
.’ to confirm. After confirmation, the display returns to standby
mode.