TB 9-6625-2184-35
(12) Turn frequency dial to 500.
(13) Adjust C4 (fig. 4) until frequency counter indicates 500,000 Hz (R).
(14) Repeat (4) through (13) above until no further adjustments are required.
Figure 4. Signal generator -
bottom interior view
SG-71/FCC, SG-71A/FCC, SG-71B/FCC (Hewlett-Packard, Model 233A)
10. Balanced Output and Frequency
Response
a. Performance Check
(1) Connect true rms voltmeter to TI BAL. OUTPUT connector using voltage divider.
(2) Connect lead between left BAL. OUTPUT terminal and ground terminal.
(3) Set MOD. BAL. - BAL. UNBAL. switch to BAL. and RANGE switch to X100.
(4) Adjust frequency dial to 50.
(5) Adjust AMPLITUDE COARSE and FINE controls fully cw.
True rms
(6) Adjust frequency dial to 500. True rms voltmeter will indicate at least 42.5 V ac.
(7) Repeat (4) through (6) above with RANGE switch set to X1000.
(8) Set RANGE switch to X100 and frequency dial to 50.
(9) Adjust AMPLITUDE COARSE and FINE controls fully ccw.