MIDI IS NOT WORKI
N
G
YES
N
O
YES
NO
YES
NO
D
o Mid
i Test as d
escr
ibed on
Rear Pa
nel Boa
rd Section
Sch
em
atics
Mid
i is
wo
rki
ng
Mid
i Activ
ity on
TP 18,20
Mid
i Activ
ity on
P2 Pin7&
9
Swa
p
Rear Pa
nel PCB
R
ibb
on
C
abl
e o
n P
2
OK
Swa
p
R
ibb
on
C
abl
e
on
P
2
Swa
p
Main
PCB