Replacing EPS-J6 PLUS Modules (RACK ONLY)
SECTION
B
Removing
1.
2.
3.
4.
5.
6.
7.
Installing
8.
9.
Replacing the Rack Keypad/Display Board
Remove all cables connected to the
EPS-16
PLUS
Rack,
including
the
power
cord.
Remove the lid (see Section
A).
Remove the two cables from
the
disk drive, three
cables
from
the keypad/display
board,
two
wires
to
the
power
switch,
and
unplug
the
headphones
cable
from
the
main board.
Carefully tip the
unit
onto its rearpanel.
Remove
the
four (4)
self-tapping
screws
and ,one star washer from
the
bottom
of
the
unit
closest
to
the
control
panel.
Remove the one (1) machine screw from the
bottom
of
the unit
located
about
I"
back
from
the
control panel (this screw goes through the
disk
drive
mounting
bracket inside the unit).
Carefully remove the Control Panel from
the
unit
Just
enough to
unplug
the
20-
pin
ribbon
cable
from
the
KPC
simulator board.
Place
the
Control Panel face
down
on a
soft
surface.
Remove
the
eleven
(11)
screws that attach the KeypadlDisplay
Board
to
the control panel.
See
Hardware
Notes p. 24. Install the
new
KeypadlDisplay
board
onto
the
new
control
panel
using the
eleven
screws.
Reconnect the
20-pin ribbon
cable
to the
KPC
simulator board
before
sliding
the
new assembly into place (make sure the striped
side
of
the ribbon
cable
is on
pin
1).
IMPORTANT! Reconnect the 20-pin
ribbon
cable to
theKPC
simulator board
before sliding
the
new assembly into place. Be
sure
to
install all
screws into the Control Panel with a
hand
screwdriver
to
avoid
stripping the holes (see p. 4).
page 38
10.
Install the four (4) self-tapping screws (one
with
a
star
washer)
on
the
bottom
of
the
unit
closest to the control panel.
11.
Install the one (1) machine
screw
from the
bottom
of
the
unit
located
about 1"
back
from
the control panel (this screw goes through the
disk
drive
mounting
bracket inside the unit).
12.
Connect the two cables
to
the
disk
drive, three
cables
to
the
keypad/display,
two
wires to the
power
switch
(see
Figure 2),
and
plug
the
headphones
cable
into
the
main board paying particular attention
to
polarity.
13.
Power
up, test the unit,
and
reattach the
lid
(see
Section
A).
EPS-J6
PLUS Service Manual
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