Originally Posted by Roger Dressler
A diode with 3 terminals is no regular diode. Do you see any others nearby that are not cooked? Can you see any markings on it?
Looks like that diode has been replaced before. Might want to consult JVC to see if they can recommend a better substitute.
The closest one I can find (it looks about the same size as D1) is D4. All of the others are definitely different sizes.
There is a N and what looks to be a marking that looks like a Tetris piece on it.
Not sure how to identify the part number from that.