Help 18 Watt Trem build
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- sdlogan9
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Help 18 Watt Trem build
Hey Guys I need an expert here.
The trem seems to be bleeding into the cuircit - when I plug in the footswitch I get a ticking sound - when I engage the footswitch I get a constant loud beeeeeeeeeeeeeeeeeeeeeeeeeeeeeeppppppppppp
I am building this off of the Revision 5 1/28/2021 wiring diagram from mojo
I am worried somthing is wrong in the layout However I am human and could be overlooking something with my own work.
Please Help!!!!!!!
The trem seems to be bleeding into the cuircit - when I plug in the footswitch I get a ticking sound - when I engage the footswitch I get a constant loud beeeeeeeeeeeeeeeeeeeeeeeeeeeeeeppppppppppp
I am building this off of the Revision 5 1/28/2021 wiring diagram from mojo
I am worried somthing is wrong in the layout However I am human and could be overlooking something with my own work.
Please Help!!!!!!!
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- JMPGuitars
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Re: Help 18 Watt Trem build
Hi,
Unfortunately Mojo build docs are notoriously troublesome. The first step is to highlighter verify BOTH the SCHEMATIC and the layout. Make sure every component value, and every connection match both documents.
Once that's complete, take a look in the downloads section and use the classic voltage chart to measure your voltages, then post them here.
One of our other members more familiar with the specifics of their doc troubles may chime in as well.
Thanks,
Josh
Unfortunately Mojo build docs are notoriously troublesome. The first step is to highlighter verify BOTH the SCHEMATIC and the layout. Make sure every component value, and every connection match both documents.
Once that's complete, take a look in the downloads section and use the classic voltage chart to measure your voltages, then post them here.
One of our other members more familiar with the specifics of their doc troubles may chime in as well.
Thanks,
Josh
0 x
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Modern Ground Schemes
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Re: Help 18 Watt Trem build
On my Mojo Classic 18 (finished ~2021-03), the Plain channel is just fine. My son uses it as his "daily driver".
Unfortunately, the Tremolo channel has issues, and is unusable.
Actually, Mojo build documentation is limited to:
* a schematic
* a build diagram
I had to request a diagram with voltages. Luckily, I have a little experience with a soldering iron, and Attention to Detail. But for anyone else looking to LEARN, at least SOME kind of Assembly guide would be appreciated.
Thanks for this answer, @JMPGuitars. I found the voltage sheet after a bit of hunting.
Right off the bat I have 607V AC input to the rectifier, and 357 DC output, leaving only 325V DC output from the capacitor. I'll fill out the rest tomorrow, & post.
Yes, yes; mea culpa. I'll build one of yours next.
Kind regards,
Drew
Unfortunately, the Tremolo channel has issues, and is unusable.
Actually, Mojo build documentation is limited to:
* a schematic
* a build diagram
I had to request a diagram with voltages. Luckily, I have a little experience with a soldering iron, and Attention to Detail. But for anyone else looking to LEARN, at least SOME kind of Assembly guide would be appreciated.
Thanks for this answer, @JMPGuitars. I found the voltage sheet after a bit of hunting.
Right off the bat I have 607V AC input to the rectifier, and 357 DC output, leaving only 325V DC output from the capacitor. I'll fill out the rest tomorrow, & post.
Yes, yes; mea culpa. I'll build one of yours next.
Kind regards,
Drew
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