I have an old Yamaha RX300 which will go quiet and crackly in the left channel, this happens in all inputs but is fine when you select tape monitor. I think it is a tired old input selector switch which I have managed to remove from the amp but I am struggling to find a replacement. The casing indicates it is an ALPS model KA502008.
Any advice on where I might find a replacement would be appreciated, failing a drop in replacement is there anything else you might suggest.
Any advice on where I might find a replacement would be appreciated, failing a drop in replacement is there anything else you might suggest.
This is the the best I could find resembling your photo. https://tech.alpsalpine.com/e/products/category/switch/sub/03/
Have you tried contact cleaner? When there are no options remaning, you can try opening the switch. I once repaired my parents refrigerator by etching a switch slider. 😉
Have you tried contact cleaner? When there are no options remaning, you can try opening the switch. I once repaired my parents refrigerator by etching a switch slider. 😉
Maybe I'm too late.
I had the same problem and I solved it this way. You have to find a selector with four positions and four statements. He's got a lot of work to do. If anyone's interested in writing here, I'il write in detail how to connect and mechanically work
I had the same problem and I solved it this way. You have to find a selector with four positions and four statements. He's got a lot of work to do. If anyone's interested in writing here, I'il write in detail how to connect and mechanically work
Attachments
I have the same issue. Could you send me some more details on how you fixed and connected the new switch?
You have to use a switch with three positions and four separate contacts
Find the instrument that the contacts are connected to the old switch and bring the signal to all four outlets
Connect all grounds as in the image on the back of the printed circuit board
The switch has two branches - stereo output, so it is necessary to separate the left and right sides
I hope this guide will help you.
If it doesn't help, you can write to me.@
drazicvoja156@gmail.com
Find the instrument that the contacts are connected to the old switch and bring the signal to all four outlets
Connect all grounds as in the image on the back of the printed circuit board
The switch has two branches - stereo output, so it is necessary to separate the left and right sides
I hope this guide will help you.
If it doesn't help, you can write to me.@
drazicvoja156@gmail.com