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HP 82912A Instruction Sheet page 5

Video monitor
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OFF-ON-VOL: To turn the monitor on, rotate this knob clockwise. Power is turned off with a counter¬
clockwise rotation.
BRIGHTNESS: This control is used to adjust the display if it is not bright enough or if it is too bright.
CONTRAST: This control allows adjustment of the contrast between the green phosphor image and the
background.
H HOLD: If the picture tears toward the left or right, or appears as diagonal stripes across the screen, the
horizontal hold should be rotated clockwise or counterclockwise until the picture stabilizes.
V HOLD: If the picture rolls upward or downward, the vertical hold should be rotated clockwise or coun¬
terclockwise until the picture stabilizes.
75-OHM TERMINATION SWITCH: This switch should be set to 75Q when connected to equipment which
has 75-ohm output impedance. The switch should be set to HIGH when connected to a higher output impedance
or when using multiple monitors (refer to the installation diagrams).
VIDEO-IN and VIDEO-OUT Connectors: These connectors provide feed through of a video signal when it
is desirable to display the video signal on more than one monitor. The composite video signal applied to the
VIDEO-IN connector will also appear at the VIDEO-OUT connector. The video signal from a computer should
be fed to the VIDEO-IN connector using the video cable (HP part number 8120-3760).
AUDIO-IN and AUDIO-OUT Connectors: When applicable the audio signal from a computer should be fed
to the AUDIO-IN connector using a shielded cable.
CAUTION
Damage to the screen could result if the same characters or graphics are shown for a long period of time
with the BRIGHTNESS and CONTRAST controls set to maximum positions.
Note: Adjustments should always be made using the controls described first. If finer adjustments are
required the following adjustments can be made on the back of the monitor by qualified service center
personnel: V LIN (Vertical Linearity Adjustment), V HEIGHT (Vertical Height Adjustment), and SUB
BRIGHT.
Power cords with different plugs are available for the video monitor. The part number of each cord is shown
below.
Computer
Power-Input
Socket
5

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82913a