JCM2000 DSL401 has died!

tonguetied · Newbie Alert Joined: 14 Aug 2005 Posts: 1

I'm having quite huge problems with my DSL401.

A few weeks ago, the output level started dropping. It eventually reached the point where I could have everything cranked up to 10 and it would only sound a little bit louder than a "bedroom practice" kind of level.

I originally assumed it was the power valves, as I hadn't changed them since I bought the amp about a year ago. I bought some Ei EL84's a couple of days ago and replaced them, but this didn't help.

Today, I turned on my amp, the power light came on, I waited for it to warm up, flicked standby to "ON" and struck a chord - but there was no sound. I checked the connections and all the levels, but there was still nothing. Then I looked in the back of the amp and the valves weren't even on!

The only thing I could hear was a very quiet, very low buzzing, which I could only hear if I press my ear right up against the speaker.

I changed back to the old power valves, but still no sound. I looked at the HT and mains fuses, and they're both fine.

Any ideas what could be wrong? I'm hoping it's just something simple and inexpensive, like a pre-amp valve, but I've got a scary feeling that could just be wishful thinking.
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i don't know why i feel so tongue tied
i don't know why i feel so skinned alive

Pemobian · Goldfish Joined: 12 May 2005 Posts: 57

airmech50 · Newbie Alert Joined: 19 Jun 2006 Posts: 3

I know this is a late reply but, perhaps someone else is having the same problem. Try going to WWW.piller.at/music/dsl201/index.html. You could have bad solder joints at your bridge rectifier due to overheating. Hope this helps somebody.

JFonseka · Not So Newbie Joined: 25 Jul 2006 Posts: 6

i highly doubt overheating like that can melt the solder, but maybe im wrong Cool