Sanyo MCO-19M Service Manual page 31

<Key Lock>
In Top Screen, press MENU key and select Set.
Press ENTER key to display current Key Lock status in the right side of "Key Lock " column
in "Stand-by Setting" display.
Select "OK" and press ENTER key to memorize the setting.
"1" : Key Lock is active
"0" : Key Lock is inactive
When Key Lock is active, setting chamber temperature, setting CO2 density and setting O2 density are unchangeable.
Note) Key Lock status will not be changed if you select "Cancel" in MENU key.
<How to inactivate Key Lock>
Change a value from "1" to "0" in the right side of "Key Lock" column.
Press ENTER key to display "Password
"Key Lock" will be disappeared from the upper right side in "Stand-by Setting" display after the buzzer sounds shortly.
Press MENU key and select "OK" and press ENTER key to memorize the setting.
Note) Key Lock status will not be changed if you select "Cancel" in MENU key.
When an input value corresponds to password, the buzzer sounds shortly and password input display and "Key Lock"
In "Stand-by Setting" display will be disappeared. Setting value is changeable.
When an input value does not correspond to password, the buzzer sounds for 1.5 seconds. Stand-by for password input.
<When it fails to remember Key Lock password>
In Top Screen, press MENU key to select Tools and press ENTER key.
"Select Tools Svc" display is displayed and select "Analog Calibration etc" display.
Input "101" in the right side of "Function" column and press ENTER key.
Key Lock password is displayed in the upper right side of display.
(Factory default password: 0000)
" and input password and press ENTER key.
- 28 -