McIntosh mp 100 Phone Preamp Problem.... Blinking Red Power Button


Hello all,

 

Appreciate any potential help... I'm a little dismayed... 

I was testing out RCA interconnects on my McIntosh MP 100 preamp, and suddenly the green faceplate starts blinking about every second. After maybe a few minutes of this, just the reg light around the power button blinks about every second. 

 

No more power on! 

 

I looked into the manual, and I didn't find anything that would help. Any suggestions? Did I blow a fuse? Did I somehow kill my McIntosh mp 100 phono preamp?

 

Thanks

Richard

whyrichard

Wow… so as it turns out…. The McIntosh shop replaced something having to do with the main power, and then it still wasn’t working. Some sort of resistor… still not working… and now try are waiting for a “small chip” from McIntosh. 

 

So it’s still being repaired…! 


QUESTION for you all…. How did this happen? I was changing the interconnect to a new custom interconnect when this occurred, could the new custom interconnect shorted the McIntosh preamp to such a degree? 

 

I am worried that it will finally get fixed, I’ll plug the custom cable in, and it’ll happen again. 

 

Even though the custom cable seemed to work fine when connected between my DAC and my amp. 

 

How did this happen? 

Thanks,

Richard

Maybe a dumb question, but was the Mcintosh powered up during the interconnect switch?

Bill

Yes, i think it was powered up when I made the switch. 

 

… was that it? 

 

The McIntosh tech asked the same question…. Saying I should make sure it is powered down when doing anything. If that is the case… such sensitive equipment….

 

r.

I always power down before changing connections.  To me, it only increases bad possibilities to not do so.

That is a pretty nice phono stage.  Once repaired it should serve you well.  Good luck.

Bill