Question about Marshall Music
I HAVE A JCM 2000 TSL 601 MARSHALL AMP THAT I BOUGHT IN 2001. I ONLY PLAYED THE AMP MABE 15 TIMES AND THEN PUT IT UP FOR STORAGE IN A HARD FIBER GLASS AMP CASE. MY FREIND WANTED TO BUY IT SO I WENT TO SELL IT TO HIM AND IT WOULD NOT WORK. WHEN YOU PLUG IT IN THE TO THE WALL THE POWER BUTTON LIGHTS UP. SO I WILL LET I SET IN STAND BY TO LET THE TUBES WARM UP THEN I TAKE IT OUT OF STAND BY AND THERE IS NO SOUND. SO I TOOK THE BACK OFF OF THE AMP AND I NOTICED THAT THE TUBES ARE NOT LIGHTING UP. I HAVE A VOLT OMS METER AND WOULD LIKE TO TROUBLE SHOOT IF ANYONE HAS ANY INSTRUCTIONS FOR ME.
If the amp comes on, the fuse is ok. I would agree with Paul about the br1 rectifier. It is quite common.
Posted on Mar 08, 2013
A common problem with these amps is a failure of the BR1 bridge rectifier that feeds the heater voltage to the power and preamp tubes. This repair should be done by a professional as there are hazardous voltages inside the amp chassis. After the repair is completed add a muffin fan to keep things cooler.
Posted on Apr 24, 2012
If the tubes are not lighting, either the fuse has blown or the power transformer might have an issue.
Be vvery careful as there are lethal voltages present in these.
If the fuse blew, replace it and try just once as there could be other problems and more damage could be done.
Posted on Sep 30, 2009
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Posted on Jan 02, 2017
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