2500_Users_Manual-.pdf - 第229页

2056-2 DISK DRIVE PROGRAMMING ELECTRONICS POWER SUPPLY TO MAIN CONTROLLER BOARD R R B B R R R (BOTTOM) (TOP) B B B BL R SYSTEM FAN CONTROLLER/ WAVEFORM BOARD TERMINAL REMOTE RED AND BLACK POWER CABLE TO TERMINAL PORT Rep…

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Repair
and
Replacement
Procedures
5.
Disconnect
the
red
and
black
power
cable
from
the
connector
on
the
left
side
of
the
controller
/waveform
board.
(Figure
7-4
shows
the
location
and
polarity
of
this
cable.)
7-4
ProMaster
2500
User
Manual
2056-2
DISK
DRIVE
PROGRAMMING
ELECTRONICS
POWER SUPPLY
TO MAIN
CONTROLLER
BOARD
R
R
B
B
R
R
R
(BOTTOM)
(TOP)
B
B
B
BL
R
SYSTEM FAN
CONTROLLER/
WAVEFORM
BOARD
TERMINAL REMOTE
RED AND BLACK
POWER CABLE
TO TERMINAL PORT
Repair
and
Replacement
Procedures
Figure
7-4
Polarity
of
the
Cables
on
t
加
Programming
Electronics
Assembly
6.
Locate
the
wide
ribbon
cable
that
connects
the
controller
/waveform
board
with
the
disk
drive.
(This
is
the
wider
of
two
ribbon
cables
running
between
the
controller/waveform
board
and
the
disk
drive.)
Mark
the
polarity
of
this
cable
to
the
connector
on
the
controller/
waveform
board
so
you
can
reinstall
it
correctly
later.
Disconnect
this
cable
from
the
connector
on
the
controller/waveform
board.
7.
Mark
the
polarity
and
location
of
the
narrow
ribbon
cable
connecting
the
controller/waveform
board
with
the
disk
drive.
Disconnect
this
cable
from
the
connector
on
the
controller/waveform
board.
8.
Locate
and
label
the
two
RS-
232c
ribbon
cables
(terminal
and
remote
cables)
on
the
controller/waveform
board.
These
are
indicated
by
two
black
arrows
in
Figure
7-4.
Mark
their
connector
locations
so
you
will
be
able
to
reinstall
them
correctly.
Disconnect
these
cables
from
their
connectors
on
the
controller/waveform
board.
9.
From
above
the
main
plate,
locate
the
six
7/64-inch
hex
screws
that
hold
the
programming
module
clamp
assembly
to
the
main
plate
(see
Figure
7-5).
Remove
two
of
the
screws
holding
the
back
of
the
assembly
and
two
of
the
screws
holding
the
front.
Loosen
the
other
two
screws,
but
do
not
remove
them.
ProMaster
2500
User
Manual
7-5
2313-1
SCREW LOCATION (1 of 6)
Repair
and
Replacement
Procedures
Figure
7-5
Remove
the
Module
Clamp
Assembly
Screws
10.
Holding
the
programming
electronics
from
the
bottom,
remove
the
last
two
screws.
Lower
the
programming
module
clamp
assembly
and
let
it
rest
on
the
black
protective
shield.
Note:
Hold
the
programming
module
clamp
assembly
in
place
(from
below
the
main
plate)
when
you
remove
the
assembly
from
the
main
plate.
11.
Disconnect
the
two
optic
cables
(S-24
and
C-25).
Note:
Before
removing
the
air
lines
as
described
in
the
next
step,
mark
the
hoses
for
proper
reinstallation.
12.
Remove
the
two
blue
and
two
red
air
lines
from
the
four
quick
connects
on
the
programming
module
clamp
assembly
(see
Figure
5-2).
、
13.
Remove
the
retaining
bar
that
holds
the
PE
assembly
in
place
on
the
underside
of
the
main
plate
(see
Figure
7-6).
Use
a
7/64-inch
hex
wrench
to
remove
the
two
hex
screws
that
hold
the
bar
in
place.
Set
these
in
a
safe
place
so
you
can
use
them
to
reinstall
the
PE
assembly.
7-6
ProMaster
2500
User
Manual