Panasonic KX-TD500 Installation Manual page 247

5.2 Troubleshooting Guide
Basic shelf power down (DC)
Error Code 1101
1.
Possible cause of
the malfunction
2.
3.
4.
Countermeasures
No change in
No change in
Note *It is recommended to have a current copy of the program on disk to facilitate
accurate and rapid recovery.
248
AC power cord is unplugged
Power Failure
Power Switch is turned off
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.
condition
Replace the CPU card*.
condition
Replace the Shelf.
End
Yes
No
OK
OK
Troubleshooting