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TSL 100

3/17/2005 12:25 PM
Two Tone
TSL 100
I´m having a Marshall TSL 100(JCM 2000)for repair, the 5-way footswitch is freakin´and so is the amp when connected to the FS.Without it all channels,reverb,Led´s etc work as they should.Has anyone had similar experience and/or an idea how to fix this?
3/17/2005 12:58 PM
Yes. It's very likely that it is the 5-pin connector on the back of the amp. It has no strain relief and everytime you plug/unplug the footswitch cable, you stress the solder connections. The solder connections crack and the amp acts like it's possessed or something.  
The solder connections are the ONLY thing that support that connector. Totally stupid design.  
You can open up the amp and reflow those connections and have the amp buttoned up in about 30 minutes.
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3/17/2005 1:08 PM
Two Tone

Wow,that was fast,thanks a lot,I´ll give it a try
3/18/2005 12:30 AM
Mark Black

Also FWIW I have seen a lot of problems with the footswitch cable itself - unfortunately usually in the middle of the cable. I have a request in with my local Marshall dealer to see if they can order a bunch of replacement cables since it's such a common problem and a replacement footswitch assembly is over-the-top expensive (and wasteful). Results pending...
3/18/2005 3:14 PM
Rick Erickson
Atten: Mark Black
Mark - let me know if you're sucessful in getting some of those cables. I happen to need one for a switch I have in my shop.  
Rick E.
3/18/2005 6:12 PM
Re: TSL 100
My experience with footswitches with captive cable is that they break right where the cable comes out the strain relief exiting the pedal. Lop the cable off a couple inches from the pedal, then rewire. If it isn't that end it is where the cable exits the plug. I rarely see cable truly broken in the middle unless someone physically damages the cable by setting a stool leg on it or something. Not saying it doesn't happen of course. But right by the strain relief is always where I look first. If I am facing cable replacement, what have I to lose by trimming the cord back a couple inches?
3/20/2005 3:13 PM
Mark Black

Enzo that has been my usual experience too. So I was a bit surprised by the two Marshall 5-button footswitches I have worked on, which both had breaks in the middle of the cable. It's really small-gauge 6-conductor wire (pretty flexible for that many conductors).  
I can only guess the failures are from being stepped on. Are Cuban-heel boots back in again? :)  
Rick - no word yet on replacement cable assemblies. I can get the connectors fairly easily (Mouser) to create replacements, but I had no idea how hard it is to find 6-conductor wire with a black jacket and good flexibility. In fact if anyone here knows of a good source for that kind of cable I would love to hear about it.
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