To Adjust The Display - HP 54600B User, Installation And Service Manual

To adjust the display

When to adjust the display
The display adjustments are optional and normally do not require adjustment.
You should use this procedure only for the few cases when the display is
obviously out of adjustment.
Table 4-16 Equipment Required
Equipment
Digital multimeter
Turn off the oscilloscope and disconnect the power cord.
1
Remove the cover from the oscilloscope.
2
Reconnect the power cord and turn on the oscilloscope.
3
Connect the digital multimeter to the end of R901 closest to the fuse.
4
See figure on next page.
Adjust +B for +14.00 V.
5
Press
6
the
Adjust V.HO (vertical hold) for vertical synchronization.
7
Set the intensity control (on the front panel) to mid-range.
8
Adjust Sub Bri (sub bright) to the lowest setting so that the half
9
bright blocks on the display are visible.
Increase the intensity control to a comfortable viewing level.
10
This is usually about 3/4 of its maximum range.
Critical specifications
Accuracy ±0.05%, 1 mV resolution
. Press the
Print/Utility
Display softkey.
Adjusting the Oscilloscope
Recommended
Model/Part
HP 34401A
Self Test Softkey, then press
Service
4–37