Jcm2000 dead

[Amp Mad Scientist]

Alright….here’s a work around for you…
Take a single, latching, on/off footswitch…one that uses a standard TS jack…like a single channel switch for an amp, like a Fender amp…I used the one that I have used for decades with my Laney. You can buy one from most music stores. Plug the footswitch lead into the “1/4 inch “loop” jack. Leave your loop controls set to footswitch mode. Your “Bigfoot” will still switch channels as usual, but the separate switch will take over the FX loop duties.
Like this:
View attachment 104548
Yeah…I need to clean the inside of my amp…but it works.
As I said, I’ve had that on/off switch for decades…but something like this will work…

Fender Single Button Footswitch - Type A

Get the Fender Single Button Footswitch from Andertons Music Company today!

www.andertons.co.uk

I have one, and use it interchangeably with the one I just used…a Marshall one may work, but I don’t have one to test…
Like this:

Marshall Single LED Footswitch Compatible w/Most Marshall Amplifiers

Get the Marshall Single LED Footswitch Compatible w/Most Marshall Amplifiers from Andertons Music Company today!

www.andertons.co.uk

I have no idea if the light will work though. But if you have one kicking around, you might want to give it a try. You could also make one if you’re feeling crafty…I made one in an electric light switch housing once, along with some other junk I had laying around. Point is, it will override the midi switching for that feature…this is likely the problem…either the amp relays, the cable, or the “Bigfoot” switch…this will/should bypass it…it does for me. I just fired it up to test.

Yeah…it sucks….the big switch isn’t working right for you, but at least they built in a redundancy to remedy the possibility of failure.

We don't know yet if the defect is in the amp itself, in the cable, or in the footswitch. Could be any of those 3.
If he plugs a footswitch into the external switching control jack, does it bypass the loop? Or not?

 

[Ramo]

Alright….here’s a work around for you…
Take a single, latching, on/off footswitch…one that uses a standard TS jack…like a single channel switch for an amp, like a Fender amp…I used the one that I have used for decades with my Laney. You can buy one from most music stores. Plug the footswitch lead into the “1/4 inch “loop” jack. Leave your loop controls set to footswitch mode. Your “Bigfoot” will still switch channels as usual, but the separate switch will take over the FX loop duties.
Like this:
View attachment 104548
Yeah…I need to clean the inside of my amp…but it works.
As I said, I’ve had that on/off switch for decades…but something like this will work…

Fender Single Button Footswitch - Type A

Get the Fender Single Button Footswitch from Andertons Music Company today!

www.andertons.co.uk

I have one, and use it interchangeably with the one I just used…a Marshall one may work, but I don’t have one to test…
Like this:

Marshall Single LED Footswitch Compatible w/Most Marshall Amplifiers

Get the Marshall Single LED Footswitch Compatible w/Most Marshall Amplifiers from Andertons Music Company today!

www.andertons.co.uk

I have no idea if the light will work though. But if you have one kicking around, you might want to give it a try. You could also make one if you’re feeling crafty…I made one in an electric light switch housing once, along with some other junk I had laying around. Point is, it will override the midi switching for that feature…this is likely the problem…either the amp relays, the cable, or the “Bigfoot” switch…this will/should bypass it…it does for me. I just fired it up to test.

Yeah…it sucks….the big switch isn’t working right for you, but at least they built in a redundancy to remedy the possibility of failure.

Thanks for that info….

I have marshall foot switch pic below, will that work?

Well, the way i use it now is…. Light on big foot is lit for fx then i tuck away big foot as its not any use lol

And use my board to turn fx on off….

Might as well get rid off big foot hahah

 

[Amp Mad Scientist]

Thanks for that info….

I have marshall foot switch pic below, will that work?

Well, the way i use it now is…. Light on big foot is lit for fx then i tuck away big foot as its not any use lol

And use my board to turn fx on off….

Might as well get rid off big foot hahah

View attachment 104550

What type of plug is on the end of the Marshall footswitch cable?
Mono? TRS?
Not sure that will work because of the LED circuit etc...

 

[Thatbastarddon]

We don't know yet if the defect is in the amp itself, in the cable, or in the footswitch. Could be any of those 3.

No, we don’t. This is a workaround.

If he plugs a footswitch into the external switching control jack, does it bypass the loop? Or not?

A single latching switch with a TS lead, plugged into the footswitch ”loop” jack, on the head, bypasses the loop control at the midi relay. As I said, we don’t know where the problem is, but this gets the amp function desired.

 

[Thatbastarddon]

Thanks for that info….

I have marshall foot switch pic below, will that work?

Well, the way i use it now is…. Light on big foot is lit for fx then i tuck away big foot as its not any use lol

And use my board to turn fx on off….

Might as well get rid off big foot hahah

View attachment 104550

That doesn’t look like the switch I chose to use, and told you to use(because I tested it myself), so if you plug that in, and one of the buttons works…great…but don’t blame me if something goes bad.

 

[Thatbastarddon]

What type of plug is on the end of the Marshall footswitch cable?
Mono? TRS?
Not sure that will work because of the LED circuit etc...

We don’t know for sure, but my money is on TRS.
The LED circuit won’t matter in this app…the LED will either work or not(probably not). What matters is that it is a latching switch circuit…NOT A MOMENTARY SWITCH.

 

[Thatbastarddon]

Might as well get rid off big foot hahah

If you only use it to turn the loop off…yeah.

Well, the way i use it now is…. Light on big foot is lit for fx then i tuck away big foot as its not any use lol

Mesa designed the amp switching in a way that the Bigfoot is not necessary to use the amp, and proper TS latching switches may be used for any, or all, functions available in that strip of 1/4 inch TS jacks. So yeah…if you live on channel 3, and don’t use the solo/boost…ditch the Bigfoot and get the switch(es) that is designed for the task needed.
Your call.
Edit: From the manual…

 

[Thatbastarddon]

@Ramo - this is the switch that is made for this workaround…

Footswitch - Single Button, Latching, No LED

The official Mesa Boogie online store for factory replacement parts, custom parts, hardware, shirts, hats and accessories.

store.mesaboogie.com

 

[Ramo]

i filmed new video

 

[Thatbastarddon]

i filmed new video

So…more likely than not, you’re Bigfoot is not fully triggering the relay in the amp that bypasses the fx loop. Whether the fault lies in the amp or the foot switch, I don’t know…
I stand by my suggestion above. You can actually make a switch for it using a guitar cable, and a latching on/off switch from a hardware store, if you want to. (Heck, you can manually short one end of a regular cable to verify…though it’s safer and more convenient to use a proper switch)

 

[Ramo]

So…more likely than not, you’re Bigfoot is not fully triggering the relay in the amp that bypasses the fx loop. Whether the fault lies in the amp or the foot switch, I don’t know…
I stand by my suggestion above. You can actually make a switch for it using a guitar cable, and a latching on/off switch from a hardware store, if you want to. (Heck, you can manually short one end of a regular cable to verify…though it’s safer and more convenient to use a proper switch)

For now it has to wait i have other things to sort out first but eventually ill get round to it.


Thanks for all your help so far, its much appreciated.

Thx

 

[Ramo]

On top of this my guitar is at tech and it needs lots off work…..

Possible re fret as they are “bad “ according to him there is hump on higher fret and needs levelling….

Whole job £350 and my cars oil service is overdue too… never ending saga for me