Tektronix 070-8462-03, Instruction Manual

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Adjustment Procedure
1735 HD High Definition Waveform Monitor
6–13
12. Adjust DC Coupled Position
a. Set the 1735 HD as follows:
INPUTs Off
Sweep THREE LINE
MAG X5
REF EXT
DC CPLG On
b. Use the VERTICAL Position control to position the trace on the 0V
graticule line.
c. Select INPUT – A.
d. Adjust A3R330 (DC 1A), A3R304 (DC 2A), and A3R308 (DC 3A) to
return the three traces to the 0 V graticule line.
e. Deselect INPUT – A.
f. Use the front-panel controls to return the trace to the 0 V graticule line.
g. Select INPUT – B.
h. Adjust A3R277 (DC 1B), A3R315 (DC 2B), and A3R326 (DC 3B) to
return the three traces to the 0 V graticule line.
i. Deselect the DC CPLG.
13. Adjust Clamped Position
a. Turn On the 1735 HD CLAMP and turn Off all INPUTs.
b. Use the VERTICAL Position control to position the trace on the 0 V
graticule line.
c. Select INPUT – B.
d. Adjust A3R313 (CL 1B), A3R354 (CL 2B), and A3R372 (CL 3B) to
position the three traces to the 0 V graticule line.
e. Deselect INPUT – B and Select INPUT – A.
f. Adjust A3R358 (CL 1A), A3R348 (CL 1B), and A3R349 (CL 3A) to
position the three traces on the 0 V graticule line.
g. Turn Off the CLAMP.