NO SOUND with JCM 2000 TSL 60
0

votes

Hey Mates,

 

Having issues with a clients amp, seems that after a retube that i did, he was playing and after about 30 min, it gradually started losing sound and then cut sound completely.  I did the re-tube myself, and biased it properly and i was able to play it for about 40 min with absolutely no issues.  List of troubleshooting steps i have done:

tried a different speaker cable

tried a different guitar cabinet

tried a different guitar and guitar cable

tried the old tubes, additionally bought a 12ax7 and tested each pre-amp tube

tried a different power source

Have tried different power tubes

have checked and replaced the fuses

 

Now this is what i am THINKING is the problem, I think it might be something with either the heater curcuit fuse, or i think it's called a BRT1 Rectifier?  I did alot of research and it seems that the people having MY issue, explain the same symptoms of what i am having.

 

Now i have to make this clear, I AM NOT A PROFESSIONAL TECH, just a guy helping bands out with tech stuff that they don't know how to do.  So any help is appreciated.

 

Thanks!

Speaker Cabinet Tubes fuse nosound

asked 27 Jun 2019 at 08:01 PM

Austin Hetrick
Answers: 1
0

votes

Hello Austin,

We would recommend that you have the amplifier looked at by a qualified engineer.

 

Kind Regards

Marshall Support

answered 01 Jul 2019 at 10:43 AM

Marshall
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