Tektronix 1710J Series, Инструкция по эксплуатации

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Performance Verification
6–8
1710J-Series Waveform Monitors
The requirements are shown in Table 6–5.
Table 6–5: RGB/YRGB Parade Display
Requirement Tolerance
Sweep Length
Three Step, RGB 3.4 to 4.1 divisions
Four Step, YRGB 2.5 to 3.1 divisions
Staircase input gain 10 V = 9 horizontal divisions
±
1.4 division
Attenuated sweep responds
to sweep rate and magnifica-
tion controls
1. Use a 75
W
coaxial cable to connect the television test signal generator color
bar signal to the 1710J-Series Waveform Monitor CH A input. Terminate the
remaining side of the loop-through with a 75
W
end-line terminator.
2. Display the color bar in 1 LINE sweep. Center the display. Note the position
of the plug on J456 on Assembly A3. The 2–3 position selects attenuation
for a three-step display (1–2 position selects attenuation for four-step
display).
3. Install the parade display test connector on the 1710J-Series Waveform
Monitor REMOTE connector. See Figure 6–1.
4. Check that the sweep has shortened to 3.4 to 4.1 divisions if P456 is set for a
three-step display, or 2.5 to 3.1 divisions if the plug on J456 (1–2) is set for a
four-step display.
5. Check that the shortened sweep is 1 LINE or 2 FLD, according to the sweep
controls, and that the sweep can be magnified.
6. Check that the display can be moved to the sides of the screen with the
HORIZONTAL position control. It may be necessary to adjust R856.
7. Position the display to the right side of the screen.
8. Use a 75
W
coaxial cable with the BNC connector-to-alligator clip adaptor to
connect a 0 to +10 V, 2 kHz square wave to pins 1 and 9 of the parade
display test connector.
9. Check that 7.6 to 10.4 divisions of deflection have been added by the square
wave.
Check RGB/YRGB Parade
Display