Hi there!
The best way to know is to take out the power supply and check the model unfortunately.
But, for your model, the following power supplies are used:
* ADP-400DR
* ADP-400CR
* ADP-400ER
The following power supply is used for the CFI-12xx:
* ADP-400FR
So far I know, the CR, DR and ER are interchangble. Except for the FR!!
But still, it’s not guaranteed. So the best thing to do is to take it out and check the model number to replace it for the same one.
If you need any guides, please let me know!