VECTOR 4 USER'S
MANUAL
APPENDIX
B - TROlJBLESHOOT
SYMPTOM
CHECKOUT
PROCEDURES
SYMPTOM
1 -
NO
BANNER
AT
POWER-ON
Symptom Review: Your
Vector
4 shows
no
"Executive" banner, nor any other
screen display,
at
power-on or reset.
1.
Turn
system OFF. Wait
60
seconds,
then turn system
ON.
Make
sure
that
key is
at
fully horizontal
position.
Listen
for
tone
generator
to
"beep".
If
tone generator "beeps", go
to
Step
3.
It
tone generator does not "beep", feel for air coming out
·of
fan
at
rear
of terminal.
If
no
air comes out of fan, continue.
2. Make
sure
that
Vector
4 is
correctly
plugged
into
working
electric
socket, and
that
connector of power cord is fully plugged
into
Vector
4
with
no
obstructions.
If
necessary,
verify
electric
socket. with other
appliance.
If
other
appliance
does
not
work in electric socket, install Vector 4 in
known
working socket
(and
call electrician regarding other socket) •.
If
other
appliance works in electric socket, Vector 4 power supply needs
inspection. Check your service agreement for the appropriate action;
the
power supply is not user-serviceable.
3. Wait 30
to
60 seconds
for
terminal
to warm up. If
no
banner displays
after
60
seconds, turn contrast
knob
all
the
way
counterclockwise,
then
back
to
full clockwise position.
If banner displays, return
to
Operating Instructions.
If
banner
still
does
not
display, Vector 4 monitor or power supply will
need
inspection.
Check
your
service
agreement
for
the
appropriate
action; this problem is not user-serviceable.
END
OF
ACTIVITY
Rev. A - 9-01-82 7100-0001
X B-5
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