Triaxis - Lead 2 Drive

Triaxis, Quad Preamp, Stereo Power series, Recto Preamp

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Bottle Rocket
Posts: 1
Joined: Sat Dec 04, 2021 2:02 pm

Triaxis - Lead 2 Drive

Post by Joao » Sat Dec 04, 2021 2:14 pm

Just found out, that the Lead 2 Drive control is not working.
The arrow buttons change the values up and down, but there is no effect on the sound. This happens on all 3 Lead 2 modes.
Any idea what this could be?

Bottle Rocket
Posts: 13
Joined: Mon May 18, 2015 3:19 am

Re: Triaxis - Lead 2 Drive

Post by Delicieuxz » Tue Jan 11, 2022 5:57 am

I had this issue with the treble control when in LD1 Red mode. Then it progressed to all channels: I had no treble control anymore.

I sent my Triaxis to Mesa for repairs, and when I got it back it was working properly. The invoice says that they replaced 8 capacitors and the ribbon cables.
Last edited by Delicieuxz on Fri Jan 21, 2022 1:05 pm, edited 2 times in total.

Bottle Rocket
Posts: 19
Joined: Wed Dec 11, 2019 7:40 pm

Re: Triaxis - Lead 2 Drive

Post by Synrgy77 » Mon Jan 17, 2022 8:00 pm

1- Ribbon cable
2- Bad IC4 OP amp (TL072). Most common.
3- Less common: Bad multiplexer

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