5-20. Diagonal Settling Time; Phase Shift Test Setup - HP 1317A Operating And Service Manual

Performance Check
CONSTANT AMPLITUDE
SIGNAL GENERATOR
fe\~cs:J ~
~ ~
• • 0$
50[2
OUTPUT
MEASURE
WIDTH OF
OPENING
Model 1317A
Model 1317A
y
9" COAX 9" COAX
................
~c:~:::J
.........
INPUT
(IN REAR)
BNC TEE
1317A-L-007
Figure 5-3. Phase Shift Test Setup
b. Connect equipment as shown in figure 5-4.
c. Set voltmeter calibrator for a 400-Hz, IV p-p
output.
d. Set GAIN X ccw. Length of display shall be
5.6 inches or less.
e. Set GAIN
X
cw. Length of display shall be
10 inches ±3%.
f. Disconnect voltmeter calibrator from
X
IN-
PUT and connect to
Y
INPUT.
g. Repeat steps d and e using GAIN
Y
control.
5-20. DIAGONAL SETTLING TIME.
5-21. Required Result. The CRT beam, when
moved from one position to another, must settle to
within 1 spot diameter in less than 500 nanoseconds.
5-22. Procedure.
a. Perform preoperational procedure (Section
III).
5-4
b. Set 500/10K switches (on boards Al and A3)
to 500.
c. Connect equipment as shown in figure 5-5.
Note that line to Z INPUT is not yet connected.
d. Set square wave generator for IV p-p,
100-kHz, symmetrical output.
e. Set POSITION and BRIGHTNESS controls
for bright dots at diagonal extremes of 10 inch
quality area of CRT.
f. Set BRIGHTNESS ccw.
g. Connect Z INPUT.
h. Set pulse generator for 100-kHz, IV p-p,
1 usec width pulse output.
i. Set sweep time of monitor oscilloscope to 0.1
J.Lsec/div and display switch to ALT B.
j. Set monitor oscilloscope trigger controls to
achieve stable display. If necessary, slightly read-
just symmetry control on square wave generator to
achieve synchronization between channels A and B.