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Reverb not working jcm 2000 tsl 60

The reverb as stop working and how can I fix it. I do have some background in repairs.

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

PolyrhythmFX
  • 109 Answers

SOURCE: Crate 100 head. Reverb doesn't work.

Check the input RCA plug going into the reverb tank (silver box with two wires connected to it). Make sure the amp is off when you do this. Sounds like the output is working fine if hitting the amp does it.

Posted on Jun 19, 2009

  • 5603 Answers

SOURCE: JCM 2000 TSL 601 MARSHALL AMP TURNS ON NO SOUND TUBES DONT LIGHT

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

PolyrhythmFX
  • 109 Answers

SOURCE: Marshall JCM 2000 dual super lead 50 watt going out on me

Very nice amp!

First off, is the amp getting sufficient power? An unreliable AC current from your wall can affect the performance.

Have you tried the amp with a different speaker? Checked for a loose connection from the amp to the speaker? Is it the correct ohms rating?

Second, are you experienced in electronics? The problem could lie in a faulty solder connection, a bad component, etc.

If you are not confident in opening the amp and troubleshooting it yourself, take it to a audio repairman. Marshall's are some of the easier ones to fix.....

Posted on Nov 24, 2009

guitarmanjoe
  • 336 Answers

SOURCE: my jcm 2000 tsl 100

Geez, how much drive or gain do you need? Maybe you should consider using a sustainer on your guitar if you expect it to be like using an ebow. No amp gives infinite sustain, especially a solid state one. A cheap guitar doesn't resonate well enough to do it regardless of what kind of amp you use. Too much drive takes away the punch attack or crunch and turns the sound muddy which makes it sound cheap, like a busted speaker. Marshall's aren't known for their drive, but for their tone overall. The combination of knowing how to use your effects and layering them in ways would give what I think you want.

Posted on Mar 08, 2013

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Hi I have A Marshall JCM 2000 TSL122. It starts out having full sound then all of a sudden no sound then after a few seconds, minutes or several minutes sound is back!


I suspect it's your input jack if it stops working immediately and comes back immediatly rather than fading in and out. Give it and any other jacks a good cleaning and see if it helps.

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After a gig last night we tried our Marshall JCM 2000 DSL401and it had developed two noises without anything plugged in. The first is a transformer hum that I'd never noticed before and when standby is...


Likely the filter capacitors have a problem. Best to take this in for repair... it is ODD that there is noise with the standby switch is in standby... That makes no sense... In standby it appears that power is removed from the power amp high voltage so nothing should come through the speaker... Unles maybe one off the power tubes had a total meltdown which should have blown the fuse.

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My jcm 2000 tsl 100 , doesn't produce the amount of gain i expect from it, i thought it gave as much as a mesa rectifier amp, i replaced the preamp tubes , but still, not enough gain


The sound level output is a true measure and unless you can compare specifications between units, you are probably listening to salesmen who want to sell you product.

The power level rating is OFTEN falsified and a LOT of the actual sound level performance depends upon the speaker used.

You should get a sound level meter to compare amps.

Remember to NEVER run more than 100 Db to avoid legal liability for hearing damage. I know several musicians who are nearly deaf now from being exposed to high levels too long. You can look up what the govt limits are now with Google.

The 2000 should EASILY reach the 100 Db level.

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My Fender Hot Rod Deville reverb is not working. What should I look for in trying to fix this problem


There are two coils in the reverb unit which use delicate wires which can break off - these can easily be checked, as follows:-

i) Remove one cable plug from the reverb unit & substitute an uncapped phono plug to the socket.Then check that there is electrical resistance across the plug terminals.

ii) Reconnect original phono plug & do same test as i) to the other socket.

iii) If either is open-circuited, then look for a break in the lead-out wires from the corresponding coil inside the reverb unit.
This break may be repaired (contact me for details) or buy a new reverb unit!

iv) If there is electrical resistance at both sockets of reverb unit, then clean both original phono plugs & try the system again.

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Fix Reverb unit on Fender Hot-Rod Deluxe Amp


Could have broken a spring in the reverb tank, or a wire connecting it to the amp, or the reverb driver tube, or a few other things, but those are the most likely in this situation. Thats what I'd check first. Give it a little slap and if it vibrates like normal, your spring is probably ok, you can still open it up and double check though. Check your wires. Then pull your reverb driver tube and replace it. If that doesn't work, it is probably in the circuit somewhere, and you should not work on your amp unless you know what you are doing. They store large amounts of electicity in the caps and they can kill you.

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1 Answer

Reverb problem


I highly doubt the reverb pan is dead, there are TL072 opamps on the input and output of the Reverb pan. Check those out. You can get the schematic from fenders website here. U6A and U6B are what you are looking for.

http://www.fender.com/support/amp_schematics/pdfs/Roc_Pro_1000_Schematic_B12.pdf

Dec 26, 2009 | Music

1 Answer

Marshall JCM 2000 dual super lead 50 watt going out on me


Very nice amp!

First off, is the amp getting sufficient power? An unreliable AC current from your wall can affect the performance.

Have you tried the amp with a different speaker? Checked for a loose connection from the amp to the speaker? Is it the correct ohms rating?

Second, are you experienced in electronics? The problem could lie in a faulty solder connection, a bad component, etc.

If you are not confident in opening the amp and troubleshooting it yourself, take it to a audio repairman. Marshall's are some of the easier ones to fix.....

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4 Answers

JCM 2000 TSL 601 MARSHALL AMP TURNS ON NO SOUND TUBES DONT LIGHT


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.

Sep 29, 2009 | Marshall Music

1 Answer

Crate 100 head. Reverb doesn't work.


Check the input RCA plug going into the reverb tank (silver box with two wires connected to it). Make sure the amp is off when you do this. Sounds like the output is working fine if hitting the amp does it.

Jun 19, 2009 | Crate Music

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