I want to thank everyone for taking the time to respond.
It's been a long time since I did any electronics
repair--PDP11 was the last.
As tt whether it mailed open or claset I could say opeb
but that would be misleading since a trace from the triac melted
so In my ignorance I would say the triac shorted.
If I could find a replacement I would prefer that but
the physical constraints are great. It is an expensive
lamp fixture so I have no problem replacing any and all
components and repairing the trace.
The marks on the circuit board are the usual diode symbol
two have a black with the usual diode markings
and the third is the "glassy" kind. Ther is also
ine resistor an a cap.
I'll try the URL's suggesteed and if tis fails
I'll replace the trac. For the moment I only
have a digi-key catalog which shows
logic triacs and gated ones and alteernistor triacs
The numers dont match but this may be a japanese
kind of numbers. The thing was made in tiwan,
thanks again