Re: PCB of garage door opener failed: Which PIC is this?

Hi!

I think the large IC looks like an 8031/8051 microcontroller...these are a
very popular, relatively low cost and highly available part. Are you sure
the power supply is working correctly? Perhaps it suffered some damage or
opened a fuse when the bulb blew.

One of these is ROMless, but I don't remember which one. What does the
little pushbutton on the board do?

William


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