Good day ppl,
I got in an Orion XTR2000.2 amplifier on the bench, its got shorted output transistors, and a burnt PS. There's a serious mix of components in here, The smaller XTRs I worked on all used TIP35/36 with TIP41/42 drivers.
Anyone knows the correct part numbers for the heat sink mounted components?
I got in an Orion XTR2000.2 amplifier on the bench, its got shorted output transistors, and a burnt PS. There's a serious mix of components in here, The smaller XTRs I worked on all used TIP35/36 with TIP41/42 drivers.
Anyone knows the correct part numbers for the heat sink mounted components?
The rail caps are 100v, there's a mix of A1962/C5242, B688/D718, TIP35C/36C.
I'm just getting into this amplifier, still disassembling, but it seems the B688/718 pair are the drivers.
I'm just getting into this amplifier, still disassembling, but it seems the B688/718 pair are the drivers.
The TIP and the Japanese parts have different bias requirements.
Do any of the outputs appear to have original solder?
Do any of the outputs appear to have original solder?
On the optocoupler in the output section, what's the DC voltage across pins 3 and 4 before and after the initial mute delay?
Ok, I rebuilt the power supply and powered up and verified gate drive.
With 11vdc input I have +/-60v rails, optocoupler pins 3 and 4 measure 30v before mute and 534mv after mute.
With 11vdc input I have +/-60v rails, optocoupler pins 3 and 4 measure 30v before mute and 534mv after mute.
The attached diagram is similar but a bit smaller. You'll have to compare parts to determine if it's of any use.