Deflection Amplifier Phase Shift; Risetime Test Setup - HP 1317A Operating And Service Manual

Performance Check
MONITOR OSCI LLOSCOPE
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MEASURE
RISETIME
10:1 DIVIDER PROBE
PROBES CONNECTED TO HORIZONTAL
DEFLECTION PLATES (NECK PINS ON CRT).
SQUARE WAVE GENERATOR
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OUTPUT
X
INPUT
(IN REAR)
Model 1317A
Model 1317A
1317 A-L-005
Figure 5-1. Risetime Test Setup
e. Set amplitude of constant amplitude signal
generator for 5-inch display on CRT.
f. Using POSITION X and POSITION Y con-
trols, center display on CRT.
g. Change frequency of constant amplitude
signal generator
to
5 MHz. CRT display shall be equal
to or greater than 3.7 inches.
h . Disconnect constant amplitude signal
generator from X INPUT and connect
to
Y INPUT.
i. Repeat steps d through g.
5-14. DEFLECTION AMPLIFIER PHASE SHIFT.
5-15. Required Result. Phase shift between the
x and y amplifier shall be less than 0.1 degree
to 50
kHz and less than 1 degree to 250 kHz for full screen
signals.
5-2
5-16. Procedure.
a. Perform preoperational procedure (Section
III).
b. Set 500/10K switches (on boards Al and A3)
to 500.
c. Connect equipment as shown in figure 5-3.
d. Set frequency of constant amplitude signal
generator to 50 kHz.
e. Set amplitude of constant amplitude signal
generator for full screen display (corner to corner)
on CRT.
f. Using POSITION X and POSITION Y, center
display. There shall be no noticeable separation of
diagonal trace.