mrantz sr930

[frank]

I have a Marantz SR930 and i had same problem i solved it by soldering all the outputs and inputs on the board on the back where the speaker/RCA's inputs and outputs, this's an old receiver but it works great also use WD40 And spray all terminals and switches.

[vtech]

...something like Cramoline is a much better product for switches & controls.

[tsgunnell]

cramoline is the american product servisol is the uk equivalent wd 40 should not be let anywhere electronic equipment