Only the spare part described in this advertisement is on offer
The photograph of the wonderful old analog mixer is purely for reference, I am only offering the spare parts for this mixer for servicing or restoration of these highly regarded "grandaddy's" of the audio world.
My KM-60 is being "parted out" as the casing was extremely "ratty" after a lot of gig work and would have required far too much work to bring back up to scratch cosmetically.
Boss (Roland) 6 Channel audio mixer
Model: KM-60
Part number: 052-311A
SPARE PART: Main electronics board with attached pots and one switch
COSMETIC CONDITION:
I have left the old interconnecting wiring in place to assist in fitting this board to an existing KM-60
No damage to the board or the associated supplied components
One obvious thing missing is the Power ON OFF paddle switch, it disintergrated! Not difficult to find these or substitute, it is only switching the Low Voltage AC to the main board (NOT the 240V line supply) and is DPST.
TESTING:
Before cannabilising the KM-60 I undertook complete sound checks through the mixer, everything is fine and working - the VU meters were also checked via this board.
The on-board power supply (linear) provides plus 14.9V and minus 14.9V to the input modules. These mixers do not have provision for phantom power for condenser microphones.
Pots have been cleaned and worked smoothly without noise.
For the techies, the semi's of interest on this board are:
HA1457W Preamp monolithic block
JRC 4558D Op amps
2SB596 TO220
2SD526 TO220
Two small audio transformers marked as MT32 with a centre tapped secondary
