HT5 Treble Pot Problem

[ema.c]

Hi everyone!
My HT5 has a problem with the treble pot:
at certain position (between 1 and 2 o'clock, and at max), the amp don't work. When I move the knob off the problematic area, it work again.
Initially, i thought it was a dust problem, then i bought a spray cleaner for electric circuit.
Unfortunely, this didn't resolve the issue.

I think the pot is broken and must to be sostituted.
Am i right?
If yes, i want to change by myselfe the broken part.
Where i found the substitution for the pot?
How much (+/-) ?
In case, to find it to an electronic store, what the specs for the pot ?
Thanks a lot!

sorry for my english!

[thephantum]

I believe the treble pot is a linear 47K ohm. You can confirm that by pulling the chassis. The value will be stamped on the pot someplace.

I'm pretty sure these guys will have it: http://www.guitar-parts.com/catalog/blackstar-amp-parts

[ema.c]

Thanks a lot!