Boss Dr. Rhytm DR-550 MK II Service Notes page 6

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DR-550mk2
APRIL.1992
NOTE
Replacement
Main Board
Assy
consists
of
the
following
2 PCBs,
Main
Board Assy
TIB©
2
T
o
Main
Board
Assy
(1/2)
(pcb
2292586803
1/2)
Main
Board
Assy
(2/2)
(pcb
2292586803
2/2)
WOtl 'GNflOS
'fi-

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