Panasonic KX-TD500 Installation Manual page 287

(3) Basic shelf DC power down
Error Code
Possible cause of
the malfunction
Countermeasures
Note
Installation Manual
1101: Basic shelf DC power down
1.
AC power cord is unplugged.
2.
Power Failure
3.
Power Switch is turned off.
4.
Malfunction in the Power Supply Unit of the Basic Shelf, or the
trouble with the Power Supply System (Backboard, CPU card) of the
Shelf
Did the above item 1), 2) or 3)
occur at the recorded time of the
Error Log?
No
Does the trouble occur frequently?
Yes
Replace the Power Supply Unit.
No change in
condition
No change in
condition
*It is recommended to have a current copy of the program on disk to
facilitate accurate and rapid recovery.
Replace the CPU card.*
Replace the Shelf.
End
Troubleshooting
Yes
No
OK
OK
287