Agilent Technologies 54502A Manual de Serviço descarregar pdf (Página 74)

CRT Monitor

Assembly

Adjustments

Intensity,

Sub-bright,

and Contrast

Adjustment

1. Refer to figure for adjustment locations.

2. Place TIMING WAVEFORMS menu on the screen of the HP 1650B/51B, by

pressing front-panel DISPLAY key.

Note This menu is used because it has characters throughout the screen which are

watched during the procedures. Any other menu may be used; however, the

adjustments may not be as accurate if characters and/or lines are not displayed

throughout the screen.

3. Set rear-panel INTENSITY to the minimum setting.

4. Adjust sweep board SUB BRIGHT control to the lowest setting of brightness

where menu is visible on the CRT screen.

Caution High voltages exist on the sweep board. Avoid contact with the sweep board when

making CRT adjustments.

Figure 4-2. CRT Adjustment Locations

Adjustments HP 1650B/1651B

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Agilent Technologies 54502A Manual de Serviço Página 74