Roland MT-90U Service Notes page 13

Mar. 2008
As a measure to prevent electromagnetic interference (EMI), attach Wiring J-2
to the Volume Board. Be careful to attach at the correct angle.
fig.kumitate-12.eps
fig.kumitate-13-e.eps
Apply cushion tape for protecting the wiring to the Jack Board. Take care not
to cover the screw hole.
fig.kumitate-14.eps
Attachment angle
not OK
20mm
Twist the 9-pin wiring connecting the Jack Board and Volume Board 3 turns.
fig.kumitate-15-e.eps
Also secure the 9-pin wiring and 3-pin wiring using a sub-tie.
fig.kumitate-16.eps
9-pin
To keep the volume control from coming loose, apply double-sided adhesive
tape having a width of 5 mm to the volume shaft.
fig.kumitate-17.eps
fig.kumitate-18-e.eps
Double-sided
adhesive tape
MT-90U
Twist 3 turns.
3-pin
Volume control
13