Panasonic KX-TD500 System Reference Manual page 1389

7.00 All Diagnosis
Description Used to diagnose DSP, LED, OPR, KEY and REP sequentially.
Input Format DIG>ALL
Diagnosis Performs diagnosis in order from DSP, LED, OPR, KEY and REP.
After conclusion of all diagnosis, "Complete" appears and waits for the entry of the
next command.
Note : Pressing the F8 key or the CTRL + C key stops the current diagnosis with
Displayed Message
displaying "Abort" and advances to the next diagnosis.
Displayed Message
Error: Illegal main command
*****
Error: Illegal sub command
*****
There is an error in the main command.
There is an error in the sub command.
14-B-11
Meaning