sometimes, if the break in the fuse is tiny, you need a magnifying glass to see it. assuming you have spare fuses on hand, simply changing them will be a diagnostic if you're stumped. as I said, my monoblocks have two fuses per side, and one of the fuses can be blown (resulting in no sound) while the tubes still light up.
Help troubleshooting amp
Hi,
When I turned the system on this morning in anticipation of a long holdiay of music there was no signal in my right channel. I first checked all connections which were fine and then I subbed in a pair of replacement tubes for the right side of my preamp, still only on channel. I then switched my attention to my amp, I switched both pairs of 6550's from left to right. Now no signal in either channel! This leads me to beleive that the trouble rests with the amp. I'm going to try switching 6550's back again but one at a time to see if I at least get the left channel back. Regardless I'm pretty sure it's a tube issue but if anyone else has any ideas I'm listening. Why do these things only happen on weekends and holidays?
When I turned the system on this morning in anticipation of a long holdiay of music there was no signal in my right channel. I first checked all connections which were fine and then I subbed in a pair of replacement tubes for the right side of my preamp, still only on channel. I then switched my attention to my amp, I switched both pairs of 6550's from left to right. Now no signal in either channel! This leads me to beleive that the trouble rests with the amp. I'm going to try switching 6550's back again but one at a time to see if I at least get the left channel back. Regardless I'm pretty sure it's a tube issue but if anyone else has any ideas I'm listening. Why do these things only happen on weekends and holidays?
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- 21 posts total
>>"I should be able to get my hands on a replacement quad of tubes today and if those don't work it's time for repairs. Wish me luck!"<< Jond Jond, imho if I were you I would take the amp to the repair shop first. Without knowing for sure what is wrong with the amp you might cause damage to the new 6550 tubes. The repair shop will test all the tubes including the two 9 pin small tubes. http://cgim.audiogon.com/i/vs/i/f/1128880649.jpg . . |
- 21 posts total