What is a CABV SMD

[kentken]

I am fixing a small device that has a Pic processer and a 5 pin smd next to it with the markings CABV.
Two pins hooked to the pic, one to ground, and one to power. What could this be??

Thanks
Kent

 

[Sebi]

Check in datasheet of PIC what is the two pins. I mean the device is a cristal oscillator.

 

[kentken]

It looks to be a SOT-23
Markings on top are CABV

pin 1 goes to pin 21 on pic(RB0)
pin 2 goes to pin 19 on pic(GND)
Pin 3 goes to pin 22 on Pic(RB1)
Pin 4 not connected
Pin 5 goes to pin 20 on pic(5v)

Any Ideas???
Thanks

 

[Sebi]

Check it with ohmmeter, maybe only four diodes for protecting (bridge).
The two "AC inputs" go to PIC inputs, + to +5V, - to GND.
Just an idea...