JRC JCX-161 - Self-Diagnosis (DIAGNOSIS) Function

4. Installation setting
JCX-161 BNWAS Installation Manual
90
7ZPNA4321
4.5.3 Self-diagnosis (DIAGNOSIS) function
This function is to perform self-diagnosis of the display unit and to display its result.
The following items can be diagnosed.
1) DISPLAY DIAG: ROM, RAM, and serial port of the display unit
2) MONITOR TEST: Screen LCD
The entire screen is highlighted repeatedly such as black to white, white to black.
Check if some dots are omitted.
3) CLICK SOUND TEST: Buzzer sound
Checks if the buzzer sounds of key operation.
Operating procedure
1) Display the maintenance menu by referring “4.1 Changing to maintenance mode”.
2) Select sequentially “MAINTENANCE” and “DIAGNOSIS” with .
3) Select a diagnosis item with , and then press . The diagnosis is performed and the
result is displayed.