Hi
Long time lurker first time poster!
I have a spinning speaker from a Yamaha organ which I am trying to get working. The speaker works fine it’s the motor that doesn’t spin. It turns but at about 5rpm, should be running at over 1000rpm I suspect.
I have found a burnt out component but don’t recognise what it is and searching google doesn’t bring anything up. Best I can guess is that it’s some sort of diode? It says IR2C with a blue band around it. There’s five of them and one has gone black. It’s the obvious fault at this point before I go changing anything else.
Does anyone know what this part is please so I can set about replacement? The first photo shows the part I’m on about and the second photo shows the particular part burnt out.
I would really like to get it working so would very much appreciate any input.
If it helps it’s from the early 1970s I believe.
Cheers!
Long time lurker first time poster!
I have a spinning speaker from a Yamaha organ which I am trying to get working. The speaker works fine it’s the motor that doesn’t spin. It turns but at about 5rpm, should be running at over 1000rpm I suspect.
I have found a burnt out component but don’t recognise what it is and searching google doesn’t bring anything up. Best I can guess is that it’s some sort of diode? It says IR2C with a blue band around it. There’s five of them and one has gone black. It’s the obvious fault at this point before I go changing anything else.
Does anyone know what this part is please so I can set about replacement? The first photo shows the part I’m on about and the second photo shows the particular part burnt out.
I would really like to get it working so would very much appreciate any input.
If it helps it’s from the early 1970s I believe.
Cheers!
Attachments
Probably a rectifier diode, check all of them in-circuit with a DVM ohm or diode test function.
If the "bad" one is open, replace it with a 1N4007.
If the "bad" one is open, replace it with a 1N4007.
I believe 5rpm is probably correct. The church I grew up in got a new better organ for the sanctuary and the bass units spun at a very slow rate. I think they were mimicking something real pipes have. It also had a "chiff" option, which added a little puff sound at the beginning of higher frequency notes. That I know is a real effect pipes have from when the air first starts coming out of the pipe.
