Newb to this forum so hello, nice to be here!
Hoping someone is good with SMD component identification. My Lexicon PCM80 Digital Effects Processor (made in 1995) VFD display has failed due to a bad cap leaking everywhere. The unit still works but with no display. I've cleaned things up & buzzed out the tracks which miraculously are all ok. Problem im having now is identifying the SMD components that test bad.
ZD1 - has the identifier '30' printed on it, obviously some kind of zener but what value?
D1 - some kind of diode, it has D3 printed on it ?
Also Q1 could be iffy, this has just got LG as an identifier on top?
Q2 looks like some kind of regulator & im going to assume its ok. This just has M Y printed on top?
There are no schematics for this module hence the guess work. Also finding & fitting a new display module would be very difficult/costly.
Thanks for any help