evertz 4025TR Instruction Manual page 50

INSTALLATION
Model 4025TR Film Footage Encoder Manual
5. Back up the telecine and transfer a short piece of film (which
includes the reference frame) to videotape. Make sure that the
Character generator output of the 4025 is recorded on the
videotape. When the telecine achieves locked PLAY speed, the
telecine FRAME and LOCK LEDs on the 4025TR front panel
should be on and there should be a '+' between the footage and
frames in the character generator. If you are in Local mode,
press the HELP key if the FRAME and LOCK indicators are not
on. If you are running the GUI press the HELP button on the
status window.
various HELP messages and their probable causes)
6. Play back the videotape in slow shuttle or jog mode. Examine
at least 5 fields of video around the reference frame, and verify
that the pulldown of the picture matches the pulldown of the
edge number characters. Do not be concerned if the frame
numbers do not match if you know that your telecine has a
prestore delay.
If the pulldown does not match, then adjust the video delay.
The video delay will normally be an even number of fields. If the
value you determine to be correct is an odd number then adjust
it up or down by 5 fields. Park the telecine with the reference
frame in the gate and repeat steps 5 and 6 until the pulldown
matches. See section 3.5.5 for more information about the
Video Delay parameter.
7. Once you have verified that the pulldown is correct, verify that
the timecode and edge code numbers that you entered for the
reference frame are correct. If they are correct you can proceed
to install the KeyKode reader system. (See section 2.13.)
If the Edge numbers are not correct, adjust the PRESTORE
DELAY parameter. See section 3.5.7 for more information about
the Prestore Delay parameter.
If the timecode numbers are not correct, check that you have
set the correct TELECINE TYPE and FILM RATE setting. (See
section 3.6.4 and 3.4.4)
In 24 FPS NTSC transfers, the pulldown of the reference frame
is not guaranteed unless you are using a device such as a Time
Logic Controller to control the telecine. This means that the
reference film frame may correspond to more than one video
frame, and that the exact timecode / edge code numbering
relationship is ambiguous except for A frame pulldowns.
In 30 FPS NTSC or 25 FPS PAL transfers; see section 3.12.6
for a discussion of Field 1 dominant and Field 2 dominant
characteristics.
(See Chapter 5 for a full discussion of the
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