Wavetek 171 Manual page 10

2-2
Table 2-1. Performance Checkout (Continued)
2 DC OFFSET 9 o'clock, then slowly to
full cw (return to OFF)
3 ATTENUATION 20, 40, 60 (return to 0)
жез
Remove 509 load and reconnect cable. Remove
the 500 OUT connection and place it on the
6000 OUT BNC.
2 Remove the 6002. OUT connection and place it
on the TTL OUT.
3 Remove the TTL OUT connection and place it
on the REF OUT. Flip dial/digital switch selec-
tor to digital switch side.
4 Remove the REF OUT connection and place it
on the GCV OUT.
5 Flip dial/digital switch selector to dial side.
Frequency
1 Remove GCV OUT connection and place on
500 OUT.
2 FREQ MULT Use each multiplier X 1
thru X 1M (return to X 1).
3 Dial Vary from 2.0 to .2 (return
to .2).
4 Connect a 0 to +2V source to the МСС IN BNC.
Vary the voltage positively.
5 Dial 2.0
6 Voltage Source Vary the voltage negatively.
7 Disconnect the voltage source.
8 Dial/Digital Switch toward the digital
Switch Selector switch.
9 Digital Switch Set each position of the
digital switch.
Position/Operation
Observe
Waveform offset negatively, then positively (clipping
may occur).
Waveform amplitude decreases with each step.
Unloaded 502. OUT and 6002 OUT are identical.
Square pulse at 1 kHz.
1 MHz pulse.
2 Vdc level.
1 Vdc level.
Observe an increase in frequency while stepping from
X 1 to X 1M.
Observe a corresponding change in frequency.
Observe a change in frequency proportional to the
change in VCG voltage.
Observe a change in frequency proportional to the VCG
voltage.
1.9999 kHz.
Observe counter readout corresponding to set of
digital switch.