how to add a GRAMS preset?

After many many many failed attempts to update firmware it finally showed successful on the update page but now the screen permanently shows do not switch off or usb not connected and is unusable, no buttons work ,completely frozen.

I just purchased a 1999 JCM2000 DSL 50 in mint condition .  It worked for an hour great no issues.

Turned everything off and came back later to find the following:

Channel led lights do not light.

Pedals in the effects loop have no effect.  Just had a Fortin Zuul in the loop.

Cannot change the channel with footswitch nor the front panel channel button. 

I do get good signal out of the cab but am stuck on the lead channel.  

All the tone stack controls work fine.

I can change between lead 1 and lead 2. 

I have pulled the chassis and inspected fuses and all seem good. 

Nothing looks burnt on the boards nor did I find any loose connections.

I removed all connections so only the cab was connected and have same issue. 

Any suggestions before I take it? 

I thought the effects loop would have still worked being I get signal out of the cab. 

Very confused as I have never seen something like this before. 

My Marshall AMP not working. Please help :-)

Hello,

I own a Marshall JVM 215c. I purchased this when I was living in Portsmouth. I didn't have much of a chance to use it as I was also studying for a degree at the time. I then moved up North. So 7 years later I'm in a position to crack back on with guitar (finally).

So I dust off my JVM 215c. Turn it on. Nothing happens. There is sorta a thump sound when I turn the power on. But then nothing.

Does this sound like a valve issue? And if so, is it easy to fix myself? Or does this amp need a professional to look at it?

Kind Regards,

Lee

I have a Apple laptop with chrome installed.Tryed to install the latest firmware but it goes to 100% and sticks.The new amp is now useless .Please could you help.

My Marshal-Emberton bluetooth speaker is having issue with sound. Speaker's conneted and charging, but unable to hear any sound.

Wanting to swap out the g12m for a g12h. Speaker is stuck to the mounting board. Best way to pop it loose. Is it glued?

Hi there! 

Can you please tell me which amps the PEDL-91003 is compatible with. I have heard it can be used with the DSL100H Is this the case?

What footswitch should I use when Pedl-10010 (P803) are discontinued.

Regards,

TC

Why when logged on i cannot see answers to questions ?

I just bought this amp yesterday. Everything works, but the speakers have been changed to Ovation Audient 40 #9732 8ohms. Should I keep them or go tothe original Celestions?

my code 25 is frozen, nothing is working. The display shows marshall - MCU: 1,47

Connection to the pc is working, update is starting, and then please wait restarting code.

Nothing more. The code 25 is not restarting. Power off and on is not the solution

What can I do?

Hi all,

I have a brand new Code 50 + Footswitch - got them today.  I have saved 3 of my own presets to Bank A 1 2 3.  No problem. Also assigned the tuner to a switch.  That was all fairly straightforward.  

However, I am unable to assign any other (new) presets to any of the other banks. When I follow the exact same process I used for Bank A - The footswitch just defaults to one of the amps, stock presets (all of which sound nasty).

I've watched the tutorials. At the moment, I have only 3 presets of my making on the switch and no, apparent way, of using any of the other banks.

Am I missing something obvious?

Cheers,

Mike

Can/should you write directly on the white strips above each switch on the PEDL-91016 6 button foot switch?

Comprei o Marshall Code 50 e sem nenhum motivo ele fica mudo quando está em uso.

O visor continua aceso, as funcionalidades todas funcionam, mas o som não sai.

Para voltar ao normal, é necessário reiniciar o aparelho, mas o problema volta a ocorrer logo em seguida.

Se eu utilizo ele com fone o problema não ocorre, se eu plugo o fone e tiro, o problema desaparece como se tivesse reiniciado, mas logo volta a ocorrer.

Gostaria de saber como proceder.

hy, i'm a proud owner of a jtm 1962 M-2006-19-0714-A 

year of production?

Watt RMS?

Thanks a lot.

I have a Marshall Code 25, and I am looking for a soft transport bag for it, can you please advise me of one?

Hey ya'll,

I have M1 Mac Mini (Also tried the same thing on my M1 Pro Macbook Pro), tried an update to the newest firmware. Didnt work from the first place, tried turning both my macs twice, didn't do anything further. (Tried every browsers - Chrome, Edge, Opera)

Now it says B0.7/M0.0/D1.2/READY and I'm just stuck with the amp that can't even produce sound because it can't do anything. Factory Reset with AMP - EXIT/STORE Method doesn't even try to respond. How do I go around it?

hello,

My amp is suddenly stopped working i update my farmeware to the latest version but it didnt help at all