Last reharsal my guitar simply stoped working in the middle of a song, after like 5 seconds that I turned off/on  it started to work again but then after 2 songs it stoped working again, this time turning off/on didnt solve the problem, I was despered, checked all cables and everything was fine, then sudently started to work again until the last songs of the reharsal, without I doing anything (?). When it  happened again in the last 2 songs, the bassist said "man you amp is blinking", and I saw the display flashing for a couple of seconds and then the sound stoped again.

I've tested the power outlet, speaker cable, power cable and guitar(p10) cables, they all working fine, seems something on the amp. Next month  my band got our first gig to play, in a small open air party, and I'm afraid it will happen again, bcause last month it occured 2 times, but turning off/on solved the problem, this time dont.

I'm from Brazil and I don't know if you have customer support here, I imported my amp from another country(didn't find any oficial store nearby to buy on Brazil).

Just wondering if anyone would have a copy of the JMP-1 Footswitch schematic or even better know where one is for sale on this planet lol.

Edit: Replaced the tubes. Still cut out or no sound at all when taken off standby. Check the fuses. They look brnd new. Bypassed the FX Loop and it seemed to work fine foa  day then went right back to cutting outor no sound when taken off standby. 

Full discalimer I don't have a lot of experience with tube amps.  Not many tech options to take it to where I live. I recently bought a used DSL20C and it is in imaculate condition.  Still has the tag on it. For the first few days it worked perfectly as expected.  I turned it on this weekend and let it warm up for a couple of minute, plugged my guitar, flipped off standby  and no sound.  Not even the usual hum that let's you know it's on.  I tried different guitars and cables. I confirmed and visible conections. Eventually, after switching the standby switch a few times it did eventually make sound. There were some pops and volume changes but it worked. I didn't press my luck and turned it off.  I took the back off and made sure the tubes were still seated properly (it was shipped to me).

This is the first time I used it with the speaker instead of the emulated line out. I really had to crank the volume to get good volume in my headphones.  I don't know if that's normal or a symptom. BTW the Emulated line out worked even when the speaker wouldn't. 

Does this sound like it need new tubes or am I looking at something more complicated.  I appreciate any help.

Hello, everyone,

I would like to ask you a question since I am not a very experienced guitarist...

I have a marshall 100 hdfx head and would like to purchase a 4x12. I have seen these two models: 

1. Marshall CODE 412 Cabinet

2. EVH 5150 Iconic Series 4x12 Cabinet Black

Hi to all on the Marshall Forum,

I'm trying to find out what expansion cabinets would be suitable to connect to my Marshall MG101FX combo.

Any recommendations?

Many thanks,

Martyn

I need the Electric Diagram for the marshall code 50 amp and footswitch, both stopped working and my Electric guy is asking for it to make it work again, we are not founding it ob Internet, thanks!

I really want to find Marshall application on the play store. It might have been broken who could assist me with tracking down it. Much appreciated ahead of time!!!

Hi! I have a Marshall 4x12 1960A 260 watt 8 ohm. I would like to know how old it is. The serialnumber is 14176.

I do need input jack for a Marshall™ MG100HDFX -
i browsed into internet -  and i am not quite sure which one I should/can use ?
 I am in spain, and now, summertime  and the sessions rocks - but that input jack does make scratches, and noises.. 
 Where I can achieve an proper, good-one, input jack,   - for your amp ???

I  download schematics  of the amp but they  are badly scanned - so I could not spot' the specs' of the device... 
Do you can you send me a high res pic of  the Amp ? 

so, maybe, when I  can identify that part  - I could order it here in Spain ? 
 or - even - from you , directly ???
 that would be a great help for a 'stressed guitarrist ... 

 Thank  you  in advance... 

Oliver Schalles
Calle Calvario 15
04288 Bédar, Almeria
Spain
0034 664 02 50 31

Picked this up at my local GC and not sure how to determine a date on the cabinet or speakers that came with it.

The 2 Creambacks in the cab are new but not sure about any of the other speakers.

Any help would be much appreciated as I'm looking to resell this ASAP and want to have the right information to advertise it with.

Thank you.

Hello folks, I have just bought the Marshall Code 100 which I was really excited about having read the description and watched the demo videos. The amp does sound amazing, but yesterday, on the first occasion that I actually tried the amp during a rehearsal, I was shocked to discover that when I step on the provided footswitch to change presets (like activating one with distortion or heavy delay), mid-song, the flow of the sound broke, there was a moment of silence before it switched to the next preset. I've been trying to research this on the Internet, but have only found 2 instances of it being addressed, no one talks about this in review videos or blogs. This baffles me - how is (mostly) everyone ok with this?

This effectively makes it impossible to use the built-in effects of the amp, which is exactly what its main outstanding feature is. Why have 100 presets when you can't switch mid-song? Are guitarists only supposed to use the Code family to select the main sound they want for a certain song, then keep using pedals for changes mid-song? ?

I'm extremely disappointed since the built-in effects were the main reason I went for this amp - I wanted to use this as both an amp and a multi-effect board to some extent. Is there any fix for this? A firmware update may be, or does the separately-sold Code pedal make a difference? 

Seriously considering returning it at this point. Advance thanks for the replies. 

Can I update the firmware via USB on my code 50 if I use a Mac?

Can anyone recommend settings to emulate the very long guitar solo in Brighton Rock by Queen? I'm thinking of the version from live killers. I'm sure there is chorus, delay and crunch there but just need help setting the parameters. 

hello, 
after a few uses the left headset does not charge, can you help me with some suggestions that would cause this? 
I reset and followed the steps on the site, thank you,
LaCi

Trying to connect to amp via USB and miniB cable. Unable to connect says code: not connected.

Enabled MIDI still no connection. tried a reset on marshall code 50 amp.

Does not reset for connectivity

PLease help

Poping sound when turning off standby . Is tis normal for the Randy Roads Tribute Head

So I have had a new CODE25 for about four months, and two weeks ago it suddently started to go silent after playing a few minutes. No sound at all, very suddenly. Lights all still on, screen on (though maybe dimmed), and it won't recover until I power it down and restart--and then it may or may not play for a few minutes more after that. Didn't seem like an overheating issue (I rarely play that loud, and at the time I was using a sweet clean preset).

I've updated the firmware and still have the problem. I'm in Hawaii, and I'm not sure there's a Marshall warranty place here to do any work on it. Am I stuck returning it? Is this a common problem?

I absolutely love this thing, I'd hate to have to abandon it for poor dependability reasons.

Sean

When trying to get additional presets I am getting Code Not Connected even though it is.

I'm using Google Chrome browser.

What am I missing?

Please help.

The connection via bluetooth and the  Androidphone will work. The amp and the phone ist pared but the gateway app doesn´t recognise the amp. What is wrong? Are i am stupid or what the f***** is the reason? I updated the firmware of the amp... Please help me or give me detailed advices!

I hope I haven't bought a low end amp, but I'm sure it's all about preference. I don't have the manual to it yet but I am needing to know if the PEDL-90008 is worth buying and does this amp have a true "TUNER" onboard?