Are they directly connected across the output of the inductors and ground?
Do all of the amps belong to the same person?
Do all of the amps belong to the same person?
Yes all amps belong to the same person
And yes they are directly across inductors and ground .
I replaced the caps and 1 of the amps draws excessive current when the rca jacks are plugged in
And yes they are directly across inductors and ground .
I replaced the caps and 1 of the amps draws excessive current when the rca jacks are plugged in
Does the amp have r-r oscillation before you plug the RCAs in?
Was the owner running them below rated impedance?
Was the owner running them below rated impedance?
Yes one of the amps has rail to rail oscillation before the rca jacks are plugged in .
and not sure at what impedance he was running on the amp
and not sure at what impedance he was running on the amp
It's a bit difficult to see with the angle, but that top right 2200uF cap in the second picture looks to be bulging a bit. Maybe it's just an optical illusion, but it can't hurt to check those out.
IT's going to be confusing to deal with more than one amp at a time.
Do you have r-r oscillation for the amp that doesn't pull current, until the RCAs are plugged in?
Do you have r-r oscillation for the amp that doesn't pull current, until the RCAs are plugged in?
The 2200 if caps all seem fine and it must be how the pic was taken .
The amp im working on now the issue with it is it has 13 volts on the shield ground of the rca jacks . When trying to plug the rca jacks in the amp will draw excessive current. The amp has rail to rail before rca jacks are plugged in .
Any ideas on where to begin ?
The amp im working on now the issue with it is it has 13 volts on the shield ground of the rca jacks . When trying to plug the rca jacks in the amp will draw excessive current. The amp has rail to rail before rca jacks are plugged in .
Any ideas on where to begin ?
I'd think that a transformer is shorted. Twist it to see if the resistance from B+ to the shields changes.
Ok I repaired the shorted transformer and the amp works like it should now .
The 2nd amp has a shorted output . I don’t have any of the outputs on hand they are IRFB4227 .
Wondering can I try the IRFB4127 in the amp for testing purposes only ?
The 2nd amp has a shorted output . I don’t have any of the outputs on hand they are IRFB4227 .
Wondering can I try the IRFB4127 in the amp for testing purposes only ?