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DIDS-40Z -ZAM13
WARNING
Do not measure the lZ kvdc CRT anode voltage
with the voltmeter.
This supply produces vol-
tage s which are hazardous to human life and
should be checked only with a dc voltmeter
equipped with a high voltage probe.
Note
When the cover is removed, a safety interlock
(shown in figure 1-7) opens the primary power
input circuit.
This interlock must be bypas sed
(cheated) to apply power to the Display Terminal.
CAUTION
The -ZZ vdc and +Z2 vdc power sources must be
checked first because these voltages function as
a supply for the high voltage power supply
as sembly (A5).
To measure the, dc voltage outputs, use a voltmeter (Simpson 260, or
equivalent) and, after assuring that the combination on/off switch and brightness
control is in the OFF position, plug the ac power cord plug into a convenient
receptacle.
When measuring the output voltages of each supply, do not leave
power applied between measurements.
As soon as the measurement is recorded,
remove power from the unit.
This will assist
in
preventing equipment damage
if
an undetected short exists in another power supply output branch.
2-3.3 Alignment and Adjustments
Before placing the Display Terminal in operation, the following adjustments
and alignment routines should be performed as necessaryfor optimum operation.
The Display Terminal is completely aligned at the factory and extensive alignment
should not be necessary.
However, excessive vibrations during shipment or line
voltage variations may neces sitate the following procedures, which should be per-
formed in the order indicated.
If it is determined that a particular procedure is
not necessary, skip the procedure and proceed to the next.
2-3.3.1 Turn-On Procedure
While holding the BREAK key depressed, turn the combination power on/off
brightnes s control clockwise to apply power to the unit.
Immediately perform the
following three steps:
a.
Depress the CONTROL and CURSR RESET keys simultaneously.
b.
Depress the CURSR RESET key.
c.
Depress the ERASE MSG key.
2-4
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