Need power on switch for MC-2125

[bobinaz]

I have a mc-2125 amp with a broken power on/off switch. It is not broken off, it just kind of rotates. When I plug it in, the unit is on. I do not want to do any more than that until I get the power switch replaced. I called McIntosh labs and they do not have any parts. Does anyone have a source for repair or a switch that will work. I asked Terry DeWick and he did not have a switch either. Thanks for any help.

 

[bobinaz]

Well I guess these power on/speaker selector switches are virtually non-existant......but I did find out from Andy at audio-classics that the switch can be rebuilt for $100. I cannot justify that right now. I think I will do what others have done, and that is to jumper the switch closed and use a power strip to power it on and off.

 

[CarlV]

Your post lacks specifics, you did tighten the nut that holds the switch in place against the metal plate behind the glass?


Carl

 

[dewickt]

The original Alps switch had a molded nylon disk inside, they tend to brake due to the pressure from the crimp on the end of the shaft that goes threw it, no glue I know of will hold the nylon together. The only fix I know of is to get a long shaft pot with switch, cut the shaft like the original and modify the pot with a new end stop so that it only can use the switch. When done this way it will work like original and no one will ever know it was a cheap/used volume control from someones junk pile...

 

[Jackmac]

I have 2105 that the on/off switch went out on. Called Terry and was told about the obsolete situation. I called McIntosh about another thing I had going on and decided to try parts department about the switch. They told me that the power switch was not available but that the speaker on/off switch could be used to replace the main power on/off switch. Don't know if it applies to the 2125 but worth a call.

 

[bobinaz]

The speaker switch is the same part number as the power on/off switch. I will check to see if my switch is properly mounted. Thanks for the info.

 

[chathamdad]

On all of my old equipment I have stopped using the power/volume knobs to turn them on or off. That road only leads one place, to an eventually broken pot. So I leave all my receivers in the on position and use the power center to turn them on or off.

 

[Mc_Man]

I can agree with Terry on this one. The power switch on my MC7270 died, I sent it off to Terry and he replaced the switch with one he had laying around. The amp works beautifully now and I can't tell it from the original.

 

[surachai_pal]

I have 2105 that the on/off switch went out on. Called Terry and was told about the obsolete situation. I called McIntosh about another thing I had going on and decided to try parts department about the switch. They told me that the power switch was not available but that the speaker on/off switch could be used to replace the main power on/off switch. Don't know if it applies to the 2125 but worth a call.

I have MC2125 with broken power switch. Can use 2105 power switch to replace in 2125?. I also have another part number as shown in the pictures.