Tektronix 070-8462-03, Instruction Manual

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Adjustment Procedure
1735 HD High Definition Waveform Monitor
6–15
d. Remove the signal cable from the 1735 HD.
17. Adjust X5 Mag Registration
a. Connect the TSG 1001 G/Y output to the 1735 HD CH 1A INPUT and
terminate the loop-through in 75
W
.
b. Select the NTSC format 5-Step Linearity signal from the TSG 1001.
c. Select CH 1A INPUT and ONE LINE Sweep on the 1735 HD.
d. Turn Off the X5 Gain and use the front-panel VERTICAL Position
control to position the trace to the center of the CRT.
e. Turn On the 1735 HD X5 Gain. Enter the MENU and select the DIFF
FILTER. Exit the MENU.
f. Adjust A3R568 (X5 Mag Reg) to return the trace to the center of the
CRT.
g. Repeat steps d. through f. until there is less than one major division of
DC shift when the X5 Gain is turned On and Off.
h. Turn Off the X5 Gain.
18. Check Calibrator Amplitude
a. Select MENU on the 1735 HD and select the Calibration signal. Exit the
MENU.
b. Check for a 7 division display,
±
7 mV, on the 1735 HD graticule.
c. Press any front-panel button to exit the Calibrator mode.
19. Adjust X1 Flat Response
a. Connect the TSG 1001 G/Y Output to the 1735 HD CH 1A INPUT and
terminate the loop-through in 75
W
.
b. Set the TSG 1001 as follows:
Signal Set Zone Plates
Format NTSC
Line Rate 525/59.94/2:1
Field Flat
Horiz Swp Freq 30 MHz
c. Adjust A3R50, A3R578, A3C15, and A3C26 for the best flat response
on the 1735 HD.
d. Remove the input cable and terminator from the 1735 HD.