- HP Hood LLC Projector User Manual

RS-232 protocol reference

TRK value, +, –, ? Sets or queries the synchronization of the projector to the

active input source.

Note: The active input source must be VGA1, VGA2,

analog M1, or analog RGBHV.

VPOS value, +, –, ? Sets or queries the vertical positioning of the projected

image: usable range is the maximum and minimum

allowed by the active input source.

Note: The active input source must be VGA1, VGA2,

analog M1, or analog RGBHV.

HIDE 0 to 1, ? Sets or queries picture blanking: 0 = disabled,

1=enabled.

Note: If the active input source is changed while picture

blanking is active (HIDE=1), the picture remains blanked.

Audio functions

MUTE 0 to 1, ? Sets or queries audio muting: 0 = not muted, 1 = muted.

VOL 0 to 31, +, –, ? Sets or queries audio volume: 0 = off, 31 = maximum.

TRB –6 to 6, +, –, ? Sets or queries audio treble: –6 = minimum, 6 = maximum.

BASS –6 to 6, +, –, ? Sets or queries audio bass: –6 = minimum, 6 = maximum.

BAL –50 to 50, +, –, ? Sets or queries audio balance:

• –50 to –1: fade left

•0 = centered

• 1 to 50: fade right

AIN 0 to 7, ? Sets or queries the audio input source:

• 0=Auto

• 1=VGA1

• 2=VGA2

• 3 = Composite Video

• 4=S-Video

• 5 = Component Video

YPbPr

• 6=RGBHV

• 7=M1

INTSP 0 to 1, ? Sets or queries usage of the internal speakers:

0 = disabled, 1 = enabled.

RS-232 keyword listing

(continued)

Keyword Parameters Description