Anyone know what the original climate controller looks like?

I'm having problems with mine, everything else is working in the a/c system and it starts out blowing ice cold, then for whatever reason goes off yet the fan is still blowing, If I play with the climate controller I can sometimes get it to come back on, or it just comes back on its own while I'm driving. Lights are still working, just not kicking the a/c on. Had my mechanic look at it and he thinks the climate controller has a short or something and I need to replace. When I look at pictures of the unit from other VX's it looks different from what I've got in mine...

I'm including a pic of mine. (mine has buttons, a knob and one slider)

Any advice or knowledge of this will be much appreciated, I really need to know what Isuzu to look up for direct plug and play replacement???