HP 8566B Adjustment Manual page 201

3. Preliminary Display Adjustments (SN 3004A and Above)
19. Connect the oscilloscope channel 1 probe to AlA2TP104 and the
channel 4 probe to AlA2TP105. See Figure 3-25 for the location
of the test points. Connect the output of the pulse/function
generator to 52 (Y input)
the A3A2 slot.
20. The Y Deflection Amplifier is identical to the X Deflection
Amplifier. Repeat steps 12 through 18 for the Y Deflection
Amplifier using R127, R120, R117, C104, and C109, respectively.
Disconnect the oscilloscope channel 4 probe from the spectrum
analyzer. Connect the oscilloscope channel 1 probe to
On the oscilloscope, press [RECALL) [m) to perform a soft reset.
23.
Press CCHAN], CHAl&EL 1 on, more preset probe, and use the
front-panel knob to set the probe to lO.OO:l. Press more .
24. Set the oscilloscope controls as follows:
Press -1:
amplitude scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20.0 V/div
offset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...45.0000 V
Press I-):
time scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50.0 ns/div
delay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125.000 ns
Press (TRIG]:
level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50.00000 V
Press (jjj:
connect dots . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..on
Press [SHOW).
Connect the output of the Pulse/Function Generator to 53 (Z
25.
input) on the Display Adjustment PC Board in the A3A2 slot. Set
the board's switch to the
The pulse/function generator output must be terminated with 50
ohms. Use a BNC tee, a 506) termination, and a BNC female to SMB
female adapter. Install the 500 termination as close to the Display
Adjustment PC Board as possible.
26. Set the pulse/function generator's controls as follows:
MODE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NORM
Waveform . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..pulse
Frequency (FRQ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .200 kHz
Width (WID) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250 ns
Amplitude (AMP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.OOV
Offset (OFS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2.OOV
27. Disconnect the black connector with three wires (8, 98, and 96)
from AlA2J5, and set AlA2R319 INT GAIN fully clockwise.
28. Set the spectrum analyzer front-panel INTENSITY control fully
clockwise. Adjust the oscilloscope trigger level for a stable display.
Note the display on the oscilloscope. The pulse should be L55V
peak-to-peak.
on the Display Adjustment PC board in
position.
Adjustments 3-61