- HP Hood LLC Projector User Manual

RS-232 protocol reference

Changing input sources

When the input source is changed back to a source used previously, the video settings

usually return to their previous values for that source. However, if too many different

types of sources have been selected since this source was last used, default values will

be used instead. The projector stores values for the last 14 sources used.

✎

A different source is defined as any input that has different signal characteristics from

another input, even if connected to the same port on the projector.

If analog and digital sources are simultaneously wired to the M1 port, the projector

treats them as separate inputs. However, if the M1 source is selected, the analog M1

input is activated. Use the NXT keyword to activate the digital M1 input.

STAT ? Queries the projector’s current state:

• 0 = standby state

•1 = on

• 2 = warm-up state

•3 = cool-down state

Note: STAT can be used anytime, regardless of the

projector’s state.

ALERT Not a request — Notifies when a system alert condition occurs:

see note • 0 = lamp life warning

• 1 = lamp life reached

•2 = lamp faulty

• 3 = lamp problem

• 4 = internal temperature

too high

• 5 = fan problem

• 6 = ambient temperature

too high

Note: ALERT is sent only by the projector, and cannot be

used in requests.

RS-232 keyword listing

(continued)

Keyword Parameters Description