evertz 9025TR Series Instruction Manual page 58

4. a) Select Load Film from the Tools menu, or press the Load Film button
(The Load Film procedure must be done each time a new piece of film is loaded onto the
telecine. See the Load Film help item in the in the KeyLog TRACKER™ manual or
Online Help for more information.)
b) Open the Set Codes window from the Edit menu (or press the F2 key) to enter the key
number of the reference frame into the KeyKode register, and set the Video time code to
01:00:00:00
5. Back up the telecine and transfer a short piece of film (which includes the reference frame)
to videotape. If you are using an edit controller, set the In point of the edit to occur before
the reference frame so that you will be able to see the complete pulldown sequence before
and after the reference frame. Make sure that the character generator output of the 9025TR
is recorded on the videotape. When the telecine achieves locked PLAY speed, the telecine
FRAME and LOCK LEDs on the 9025TR front panel should be on and there should be a '+'
between the footage and frames in the character generator. Press the HELP button on the
Encoder Status window if you are not seeing the '+' indicator.
6. While the telecine is in Play with the Lock indicator on, make a note of the "Scan Track"
value on the Encoder status window. This value shows where the 9025TR thinks the film
frame boundaries are and how much the film is moving in the gate due to the effect of
Scantrack on older Cintel telecines. When the telecine is first put into the PLAY mode, the
Scan Track value should be approximately 00. If you have a Cintel Telecine with Scantrack
enabled, the Scan Track value will change gradually, with expected values of less than ±15.
On telecines that do not have Scantrack, this value should be relatively constant with a
value of less than ±15 when in the locked PLAY condition.
If the Scan Track value exceeds ±19, an counting error will occur in the biphase
based numbers. This may be due to a telecine with excessive Scantrack settings,
or to improper centering of the film when it is loaded onto the telecine. It may also
be due to the telecine type being set incorrectly.
7. If you are not using the film system in a 2:3 pulldown mode you can proceed to step 8. 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 parameter in the Telecine Setup
Screen. The Video Delay parameter 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).
8. 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 learn the KeyKode reader head offset. (See section 3.4.)
If the Edge numbers are not correct, adjust the Prestore Delay parameter on the Telecine
Setup Screen. (If the Edge number showing in the window is greater than the reference
frame number on the film, increase the Prestore Delay parameter.)
CALIBRATION
9025TR Series Film Footage Encoders Manual
Revision 1.3
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