Panasonic KX-T336 System Reference Manual page 539

3.03 TSW clock down
Error Code
Possible cause of
the malfunction
Countermeasures
3 .;I
Note
0300
1) TSW card connection error
2) TSW card clock link failure
After confirming the TSW card
connection, press the RESET
button
Is the trouble registered in the Error
Log ?
Yes
' y Yes
>
Replace the TSW card
No change in
OK
condition
I
Replace the Shelf
<
Y
I
End
I
-.
:
If the TSW clock malfunction occurs:
1) The attendant console does not function.
(Communication to the LPR becomes impossible)
2) Calling becomes impossible
3) Power Failure Transfer will be activated
14-E-6