Starting The Operational Diagnostic Program - Ricoh A172 Service Manual

3.2 STARTING THE OPERATIONAL DIAGNOSTIC PROGRAM

1. To start the operational diagnostic program, turn on the main switch while
pressing the [Special Accessory Key] key, then press the [Start] key.
2. If there is an error before the main menu is displayed, the operation
control unit system displays the error message as shown in the above
diagrams. This error message indicates that something is wrong inside
the operation control unit.
If this error message appears, turn off the main switch to forcibly
terminate the operational diagnostic program.
SM
Operational Panel Diagnostic Program
KEY/LED Controller Hardware Error
Message indicating a problem with
the key/LED controller
Operational Panel Diagnostic Program
Touch Panel Controller Hardware Error
Message indicating a problem with the
touch panel controller
6-31 A172/A199