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Figure 7. A6 board adjustment locations.
Swept Frequency and Marker Accuracy

Calibration Procedure For Sweep Oscillator, Modles 8350A, 8350B, And Plug-In Models 8325A, 83592A, And 83592A Opt 002 Page Navigation
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TB 9-6625-2124-24
(16) The FREQUENCY display will indicate 2C83 and the FREQUENCY/TIME
display will indicate F0.
(17) Adjust A8R19 (fig. 6) for multimeter indication of -26.500 V dc (R).
key four times. The FREQUENCY display will indicate 2C87.
(18) Press
(19) Press function keys and enter corresponding data on keyboard as listed in as
listed in (a) through (d) below:
key, DATA ENTRY 00.
(a)
key, DATA ENTRY 00
(b)
key, DATA ENTRY 00.
(c)
key, DATA ENTRY 00.
(d)
(20) The FREQUENCY display will indicate 2C8B and the FREQUENCY/TIME
display will indicate 00.
(21) Disconnect multimeter from A8TP6 and connect to A7TP3 (fig. 8). Adjust A7R22
(fig. 8) for multimeter indication of -3.000 V dc (R).
key two times. The FREQUENCY display will indicate 2C89.
(22) Press
(23) Press function keys and enter corresponding data on keyboard as listed in as
listed in (a) through (d) below:
key, DATA ENTRY 0 BKSP.
(a)
key, DATA ENTRY 0 BKSP.
(b)
key, DATA ENTRY0 BKSP.
(c)
key, DATA ENTRY 0 BKSP.
(d)
(24) The FREQUENCY display will indicate 2C8B and the FREQUENCY/TIME
display will indicate 0F.
(25) Adjust A7R24 (fig. 8) for multimeter indication of -19.500 V dc (R).
(26) Repeat (22) above.
(27) Press function keys and enter corresponding data on keyboard as listed in as
listed in (a) through (d) below:
key, DATA ENTRY BKSP 0.
(a)
key, DATA ENTRY BKSP 0.
(b)
key, DATA ENTRY BKSP 0.
(c)
key, DATA ENTRY BKSP 0.
(d)
(28) The FREQUENCY display will indicate 2C8B and the FREQUENCY/TIME
display will indicate F0.
(29) Adjust A7R19 (fig. 8) for multimeter indication of -9.500 V dc (R).
(30) Press keys as listed in (a) through (c) below:
(a) INSTR PRESET.
(b) SHIFT.
(c) CW.
(31) Disconnect multimeter from A7TP3 and A7TP8 and connect to A7TP4 (+) (fig. 8)
and A8TP1 (-). Adjust A7R18 (fig. 8) for multimeter indication of 0.000 V dc (R).
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