Service Manual - AMS Neve

MACHINE PARAMETERS
SynchroNet ES/2 Service Manual
bit 2 Move Evertz/SSL serial timecode back by 2 frames (Screensound version 4).
LOCATE AND CHASE PARAMETERS
TOGGW $1050
During locate or chase functions the last stage may be a toggle into park or a toggle ahead of
playing master reference, this parameter represents in binary frames the size of the window within
which fixed speed toggling takes place. This parameter should be set large enough to
accommodate the toggle stopping window (TSTOPW).
PLAYW $1051
During locate or chase functions the last stage may be a play into park, this parameter represents in
binary frames the size of the play into park window.
PRKERR $1052
This parameter, in binary frames, represents the allowed error in parking the machine. If the
machine stops outside this window it will attempt to repark. It may attempt to repark up to PRKJOG
(105d) times before abandoning the job, it will then leave the machine where it stands.
STRTFRM $1053
display : STRTFR
Usually the machine is parked ahead of the timeline position and when the timeline starts to run this
value represents, in signed binary frames, the correct difference between machine and timeline to
issue the play command to the machine. It is adjusted by the kernel on each play to achieve a faster
lock time next time. A value of 5 frames means the play command should be issued when the
timeline is equal to the machine position 5 frames.
Positive values may be used, whereupon the play command is not issued until after the timeline
has passed the machines position. This can compensate for those machines which start with a
boost, causing them to travel at faster than play speed for a brief period before settling down.
PRK_AHD $1054
display : PRK_AH
This is the number of frames a chasing machine will stop ahead of a stopped master reference. It
should be large enough to accommodate STRTFRM described above but not so large as to delay
the synchronous play of the system.
WNDLAGF $1055
display : WNDLGF
When the machine is chasing, this parameter defines how much to lag behind a forward moving
master. The algorithm to define the number of seconds to follow behind the master is:
WNDLAG WNDLAG
* masterspeed
8 16
where master speed is in multiples of play speed
WNDLAGR $1056
display : WNDLGR
Same as WNDLAGF but for a reverse moving master. When setting the wind lag factors there is a
worst case condition for each. For the forward moving system the worst case is a master which
stops instantly so that the slave has to wind down to a controlled stop without going too far past the
stopped master position. For a backward moving system the worst case is for a master to drop
instantly into play, the slave must decelerate to stop ahead of the master ready for a synchronous
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