~-------
~
945423-9701
3.
Connect plug
PI
(9-pin male connector)
of
the interconnection cable (CRT CONTR)
to
the VDT controller circuit board edge connector. Ensure
that
the cable dresses
to
the rear
of
the computer. Engage the cable in one
of
the cable clamps on the computer.
NOTE
If
the
terminal
is
installed in a local location (within 5 metres (16.4
feet)
of
the
controller), skip the remainder
of
this procedure.
4. Connect the connector
(P2) on the controller interface cable
to
the extension cable
connector,
PI,
from the remote terminal site.
2.6.3 TERMINAL INTERRUPT.
An
interrupt
is
a signal generated by the terminal keyboard
to
tell the
computer
that new
input
information has been entered. This interrupt enters the
computer system through the
VOT controller circuit board. The
computer
recognizes the
keyboard interrupt,
as
well
as
interrupts from
other
CRU peripheral devices, and internal
interrupts through a ranked priority system.
2.6.4
COMPUTER POWER ON. After making
all
connections
to
install the VOT con troller in
the proper chassis location together with its required cabling and interrupt wiring, set the
POWER switch on the
computer
chassis to the ON position.
2.7 TERMINAL
CHECKOUT
CAUTION
Perform
the following check only after unplugging the power cord
of
the video display unit.
I. Unscrew fuseholder F 1 on the rear panel
of
the display
unit
and ensure
that
it contains
a I-ampere fuse
(O.S-ampere on 200-, 220-, and 240-volt units) in good working order.
Reconnect fuse and fuseholder.
After
connecting
all
cables and applying power
to
the computer,
but
before ins taIling
any software service routine in the computer, perform the following procedure to ensure
that
the terminal
is
properly installed:
2.
Set
the
ON/OFF
switch
on
the right side
of
the display unit to the ON position.
3. Examine Sync indicator (labeled S) on the rear
of
the display unit.
If
this indicator
is
lighted, skip step 4.
4. Check
all
cables between the display unit and the
computer
to ensure
that
they are
properly connected.
If
Sync indicator
is
still
not
lighted, call service personnel.
NOTE
Because the software service routine
is
not
currently installed in
the computer, the display screen should be blank.
5. Depress the
UPPER CASE LOCK key so
that
it remains in the down position; then
press the
letter
A key on
the
keyboard.
2-12
Digital Systems Division
To Next Page
Loading...
Need help?
General
