Service manual

2. General Description
CHRISTIE INC. - 35/70 Service/PM Manual
July, 1997
C7: The OUTPUT STATUS Command [DX]
This diagnostic command requests an output of the current status. The rightmost character of the two-character
display contains the number of the current show; the leftmost character contains the status. The status is output
on the RS-232 port to the show controller or the service terminal.
ENTRY:
<CMD-C>, <7>
CODE:
C7
ACTION
S:
Outputs status over RS-232 interface.
STATUS:
Unchanged.
An example of an output status return value is:
A2
where
A: Parked at Cue Point (see Table 2.4)
2: Show number 2.
C8: The CUE Command [OP,L]
This operational command causes the projector to position the film at the start of the first show encountered when
the projector moves in a forward direction. The film advances in the slew mode. If the CUE command is
entered after the BOF marker in a show has been passed, the projector will find the next show on the film; this
may not be the next show in a programmed sequence. A CUE command must be issued prior to the first time a
show is played after the system powers up; thereafter, the projector tracks the start point for every show on the
film.
Do not enter a CUE command if the projector has already encountered the BOF
marker of the last show on the film. If a CUE command is entered at this point, the
projector will move forward until the film runs off the reel.
ENTRY:
<CUE>
CODE:
C8
ACTION
S:
1.Move forward in slew mode at 15 fps until BOF marker of the
next show is located.
2.Update frame counter.
3.Park on BOF mark.
STATUS: Set to 8 while searching for next show;
set to A while parked at cue.
C9: The JAM Command [DX]
This diagnostic command resets the frame counter for a show. If a new frame counter was just loaded using the
SET FRAME COUNTER command (see Section 0), that value is loaded; if no time has been set, the frame
counter setting defaults to one hour, written as 01:00:00:00. The JAM command is useful if there is a
requirement to inspect the new value immediately or to set MASTER and SLAVE start times to the same value.