Please help - Converting Mesa 2:90 from 117v to 230v

[Hydesg]

Hi guys,
below is an image of the wiring for my 2:90 poweramp.
Is it an export transformer?


I would like to rewire the amp to work in 230v mode.
I notice that there are 4 taps for the white wire, 100,117, 230 and 240.

To make it 230v, do I unsolder the white wire and shift it to the adjacent 230v/100v tap above it? currently the white wire is wired to 117+240 taps.
In addition, do I move the gray (wire to fuse) and black (wire to power ground) to the export primary track (the white line below the 117/240 voltage tap).

I would need to replace all fuses to support 230v.
let say its 6.5A for one of the fuse, do I change it to a 4A fuse?

below are some schematics i found online




Thanks!

[Steve Conner]

From the schematic, it looks like the export transformer is 230/240V only. (and the domestic one is 100/120V only.)

So if your amp is working on 120V, it can't have the export transformer.