Fhamre
Super Member
I have been trying to fix my dead fm. It could well be the selector switch as there is no voltage from the pin (J431)on the phono/switch board that comes from the FM portion of the switch. I have a good 2265B so I have been comparing voltages .
In this section of the switch I can see a large carbon like deposit where the switch needs to make contact. I have hit it hard with Deoxit a number of times, including using a mix with some Comet. But that junk is not moving.I even tired gently prodding it off with the tinest of screwdriver. No luck.
Any suggestions. I have never taken a rotary switch apart but that looks like one solution. I would hate to do all that work and screw up the switch or find out it wasn't the problem.
Yes, I have a service manual. In fm mode the unit has no static or signal of any kind. It just lights up.
In this section of the switch I can see a large carbon like deposit where the switch needs to make contact. I have hit it hard with Deoxit a number of times, including using a mix with some Comet. But that junk is not moving.I even tired gently prodding it off with the tinest of screwdriver. No luck.
Any suggestions. I have never taken a rotary switch apart but that looks like one solution. I would hate to do all that work and screw up the switch or find out it wasn't the problem.
Yes, I have a service manual. In fm mode the unit has no static or signal of any kind. It just lights up.