HARDWARE
NOTES
EPS-16
PLUS KEYBOARD AND
RACK
FLASHBANK
Format
Errors
Hardware Notes
On Rev C
and
lower
Main
boards ONLY (4001013501 with
Rev
letter is located next to
the
MIDI Thru
jack)
a
trace
cut must be made in order for the unit to work properly with a
FLASHBANK
option
(see
Figure 10).
If
this trace
is
not cut all the way through,
you
may
get a
FLASH
FORMAT
ERROR message
when
formatting a FLASHBANK.
DO
NOT
CUT
THIS TRACE
ON
REV
D (or
hi"gher)
BOARDS
Pin
38
:>
make
sure
the
trace
to
this
feedthru
is
cut.
31
CUT
...............
'-Lo
81
On
40010013501 board
of"
Rev
A,
B,
or C, make
sure
that this trace is cut. This
trace does
not
need
to
be
cut
on Rev D or higher boards.
Main Board Edge
Figure
10 -Trace cut for Rev
A,
B, or C Main Boards
For best
results,
be sure that the EPROMs are version 1.ooF or higher. For more information,
see Keyboard
and
Rack Similarities on
p.
1.
EPS-16
PLUS KEYBOARD ONLY
1. OEX-6CAUTION!!!
Th1PORTANT!!!
The 8-pin
mini-DIN
connector
on
the rear panel
of
the EPS-16
PLUS
should
only be
used
to
connect
the
OEX-6
Output Expander
to
the
unit. This connector does not simply supply audio
outputs
and
signal
ground and, therefore, cannot be used to generate separate outputs without
the"
OEX-6.
The
EPS-16
PLUS
generates digital signals which must be convened externally. The
signals present
on
this
connector include digital control signals and +/-
15VDC.
Improper
connections
to
these
signals could easily damage
the
EPS-16 PLUS or
any
external
device
connected.
The
OEX-6 should never
be
plugged
in
or
unplugged with
the
EPS-16
PLUS
power
on, as this could damage the EPS-16
PLUS.
2.
Keyboards
that
think that they
are
a Rack
The
O.S. disk
and
EPROMs are the same for both the EPS-16 PLUS keyboard
and
rack.
With
O.S. disk
Version
1.00,
the
software determined whether the unit was a keyboard
or
a
rack
by
the value/position
of
the pitchwheel.
If
the
pitchwheel
was
off center,
the
unit
would
not
go
through
the
keyboard calibration routine and would act just like a rack.
To
fix
this,
update
the
unit to the latest software
(EPROMs and disk).
EPS-J6
PLUS
Service
Manual
page
23
To Next Page
Loading...
