Just an update to my previous posts..... Noise gate fixed by my "Marshall approved" technician (Eugene, Oregon USA) recently. Marshall sent him replacement kit (parts) and I didn't pay a dime because the YJM100 is still under warranty. When I got the amp back and plugged it in I noticed these things...

No problem. I'll let you know how my amp works when I get it back soon.

.....at any rate, I found it interesting that my amp tech ( a qualified and authorized Marshall tech) received communication from Marshall that they were aware of this problem and said they would send a "replacement kit" immediately. I've read of several YJM owners experiencing this same problem. So...

Actually, there IS a picture of the "area" where the components are found. Check out Tony McKenzie's review of the YJM100. He has an in-depth review as well as detailed pictures of the inside of the amp. It looks like the noise gate, boost and reverb are all located on one pcb board. Very interestin...

Andrew......Read my response in the other recently posted discussion on this issue. Marshall IS aware of the problem and sent my amp tech a "replacement kit" to fix the problem. It's either a new pcb board containing the noise gate processor, or parts to replace the whole thing. I'll find out when I...

I just took my amp in last week for problems with the noise gate. Apparently Marshall knows about this problem and is sending a "replacement kit" to my tech. Obviously it's either a design flaw, or a widespread malfunction. The fact that others are now starting to experience this problem would mean ...

Ahhhhhh.....thank you so much for the information. My amp is currently in the shop. I "believe" it is still under warranty and I'm sure my tech will get the same information you've provided, from Marshall. (He's an authorized Marshall tech) I also contacted Marshall, and they said that they carry AL...

The noise gate on my YJM is now acting like another volume control. When I activate the boost, it lowers the volume as I turn up the noise gate. Using the noise gate alone does the same for any overdrive pedals I'm using out front. There's a guy who posted this exact same problem on youtube. His dem...

Sorry to be such an airhead.......what are the Morgan Pettersson settings?

I'm a YJM "newbie" having only owned it for about 3 weeks now. I've tamed it for my studio, using fairly clean, on the edge of breakup sound in combination with a Fultone OCD. It's like owning a two channel amp. I know I'll get some flack about using the OCD, but I gotta tell ya, I can capture any Z...

Oops! #M.2011.41.1786.2
This would indicate that it's number 1786 of only 1500 made.?????

I just received my Marshall YJM100 and the number is interesting.
Apparently, I have number 1786. I thought only 1500 were made.
No mistake. #M.2001.41.1786.2
Interesting!