Calibrating The Sd Vtr Timing - evertz 9025TR Series Instruction Manual

3.6.4. Calibrating the SD VTR Timing

3. If you are using a SD VTR in the Edit suite you will also have to calibrate its timing. Connect the
Video Out of the 9025TR to the Video In of the 9150. Make sure that the 6 Hz pulse from the
7750SRG-HD is connected to pin 1 on the 9150 Parallel I/O connector. Connect the Video
output of the 9150 to the SD VTR.
Repeat the same edit but add the SD VTR as a second recorder. Make sure that you record the
Character burn-in windows from both the 9025TR and 9150 on the SD VTR. Locate a frame
early in the edit where the 9025TR Video timecode burn-in has the frames at 00. Compare the
character burn-in of the 9025TR and 9150 video time code. The 9150 and 9025TR burn-ins
should agree when the frames numbers of the 9025TR are divisible by 4. These frames should
also be A frames on the 9150 output video. Also compare the character burn-in of the 9150
video time code with the TLC's display of the SD VTR's time code. If they are the same then
proceed to step 8.
If they are different, adjust the SD VTR *Sync Trim value in the TLC by the number of frames of
difference between the 9150 burn-in and the VTR's timecode. Perform the edit again. In order
to be able to distinguish the new edit from the previous edit it is recommended that you change
the colour correction significantly before performing the edit. Doing this each time you perform
an edit will minimise confusion in determining accuracy at the edit point.
Note: there is a 5 frame delay (4 frames at 24 FPS) in the 9150, so the *Sync Trim value you
would expect is 5 frames more than the HD VTR.
4. Once you have an edit where the 9150 Video Time Code burn-in agrees with the TLC's
reporting of the SD VTR timecode, and then park the tape on the first field of the edit. Compare
the time code reported by the TLC with the Edit In point you selected for the SD VTR. Adjust
the SD VTR *In Trim value in the TLC until the edit occurs where you wanted it to be. Once you
have set the value, you will have to set the SD VTR *Out Trim to the same value.
CALIBRATION
9025TR Series Film Footage Encoders Manual
Revision 1.3
Page 3-11