onsdag 31 mars 2010

Channel board caps

Electrolytes on channel boards:
13 10uF/16V caps
2 47uF/16V caps
2 10uF/25V caps

I think i will replace them with all 25V as there is plenty of room and parallel them with
1uF ceramics or poly, depends on price. Hope to get some input from you on this.

I am thinking about making channel 7 and 8 "golden channels" with poly caps where appropriate
and solid state input (INA217). More on this in another post though.

Day one - Disassembly



Here is my M30 stripped off knobs


















Some guts
Channel 6 mid EQ has an extra nut that i missed at first.
It has to be removed before the front panel come off.

Some guts

More guts

PSU board

Some hidden screws under the dust protection for the pad and input selector

Aaah, the channel 8 board is out!





My "brand new" Tascam M30

I have just purchased a used but very well kept Tascam M30 that I want to refurb and mod. I have the ambition to document my progress here and hope to get some tips and suggestion from you along the way.

I haven't thought this completely through but here are what I am planning to do first:

-Add balanced mic inputs for channel 7 and 8.

-Recap and parallell all electrolytes on channel boards.

-Recap PSU board.

I have no idea how long this will take because I have to do it in conjunction with family life and band life.

I haven't acquired the schematics yet so if anybody can help I appreciate it. I am at the moment most interested to get info on the input transformers ratio.