McIntosh Tube Amp will not come on.


I have a fairly new MA352 integrated 200W tube amp/ SS Preamp. In the middle of the day, during normal operation, I powered it on, but the 4 tubes stayed orange. They will convert to a green "ready" state. The display just continues to say, "Tubes warming up." This phase of start-up lasts about 5 seconds. Now... It will not get past that phase.  Has anybody else experienced this with McIntosh tube equipment? 

 

rmcshane

If you have another like preamp level tube, swap it one at a time and hopefully it will root out the bad tube and go to ready state

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