Teleflex 301 Owner's Manual page 80

System will not
The display on the
keyboard console
activates momentarily
then goes blank and the
system shuts down
c
section
.
Some
operator may do them himself if he has a digital voltme-
ter. Consult a technician if you are unsure of what to do.
1
Check that
power up
Check wiring to
nals in the distribution box on port A.
Check that the Distribution Box
has +4 to
when the Keyboard Console's STANDBY/ON button is
pressed.
Check that the
power supply in the distribution box or the Keyboard
Console. Check that
If
not then a power supply section fault in the distribu-
persists, replace the distribution box's board.
The automatic test circuit is causing system shutdown.
fatal flaw has been detected in the Distribution Box.
Remove
.
tion Box and check
their sockets.
Check
circuits on the board.
.
Retest the system.
.
distribution box's board.
of these checks require the use of a meter. The
power
is
ON
(Brown) and
volts present and that
OFF
(Violet) terminal goes to
box
is likely. Retest the system.
the
cover and internal shield from the Distribu-
that
for any loose material
If
the symptom persists, replace the
available and check fuses.
OFF
(Violet) termi-
O N
(Brown) terminal
changes to
it
If
not, the fault may lie in
voltage appears on Terminal
If
the symptom
the large ICs are fully
that could be causing short
and
Servicing
0
volts
V when
the
A
seated in
Troubleshooting
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