Marantz 1060 un-even channels, any insights?

[Richs_Trains]

I have a Marantz 1060 that I bought not working and tried to rebuild about a year ago. I recapped everything except P-400 and replaced the fried outputs and the filter caps. When I got it, it was a dead short on the dbt and after replacing everything and adjusting the amps using the recommended way when you don't have a scope, everything works, it is the right channel is noticeably lower in volume than the left. I know it is recommended to change the small transistors on the power amp boards, but I don't really know how to match these up, could this be my problem on this one? Any help, advice, or part numbers would be greatly appreciated. Also still trying to figure out the 1150 from a previous thread, once I get the 1060 right, I hope to get back to it. Thanks as always Rich

 

[catrafter]

Cross patch the Pre-out jacks to the Main in jacks. If the problem stays in the same channel, you have a power amp problem.
Sometimes the loud channel is the one with the problem.

Other that the infamous 2SC458 transistors, I rarely swap out transistors unless they have failed.

Tom

 

[Richs_Trains]

Other that the infamous 2SC458 transistors, I rarely swap out transistors unless they have failed.

Thanks, Tom, is there a direct replacement for the 2SC458 transistors? If I am going to check the power amp again, I might as well do what's recommended for this unit. Thanks again, Rich

 

[quadmatrix82]

I use ksc1845 in place of 2sc458

 

[EastPoint]

I use ksc1845 in place of 2sc458

That’s the correct replacement. If you haven’t done the transistors, that’s probably your issue. I would replace all the small transistors in there, honestly. They don’t age incredibly well and they’re cheap and easy to replace.