Carver M1.5T Power Supply Repair
Ok so I'm new to this site!
I decided it was time to refurbish my M400t after 26 years of reliable operation. Before I start on this amp I bought a project amp, a M1.5T that is dead. Actually its not dead it has a shorted Triac and fires up with a varactor properly. To the point...
After scrutinizing the schematics
the steering bridge diodes I read as FDH 400 ( 1 shorted) (1n4148) m400t
Seems like 1n4005 would be suitable.
The Triac is Q6025 t0-3 pack.
The Diac is HT-40
My question is the Opto coupler a MTC-275?
I could not find a part number in the 1.5 T schematics, however the M400t schematic (New Series Power Supply) lists the Opto as a MTC-275.
The part number is indistinguishable on the device...
this crosses to a ps2601 or 4n35 both I have..
Is this correct?
FYI I'm an engineer who worked as a tech wile going to school years ago, and currently Employed as a Sr. Software Controls Engineer. I have repaired high quality amps before (SAE) and have all the necessary equipment. Cudos to this sight for posting the Service Manuals, Just got the M240 manual for my car amp that still works, but needs some new capacitors in the supply.