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The OPD pulse is a 2 msec wide active low pulse that goes low during the first field of each new film
frame on the telecine output. This signal should always change level around VSYNC time. The OPD
pulse is available on the rear panel of the telecine and must be connected to the FRAME PULSE loop
on the 4025TR rear panel.
!
Do not terminate this signal.
!
Connection of a Film frame pulse is required even with 1:1 video transfers in
NTSC and PAL to permit the 4025TR to distinguish the difference between the
field 1 and field 2 dominant pull downs.
Setting the telecine type item of Telecine Setup screen in K
type of pulldown pulse used for the telecine. The telecine type should be set to match the ITK telecine
type being used to accept the OPD pulse input from the FRAME PULSE BNC loop on the rear panel.
1.2 ITK Millennium
The Biphase tach pulse is available on the 9 pin D Biphase 1 connector on the Millennium. These
biphase signals must be connected to pins 3 & 7 of the 9 pin parallel I/O D connector of the 4025TR as
shown in Figure 2. Retain the separate shielding of each signal up to the 4025TR in order to prevent
cross-coupling which can adversely affect the biphase reliability. You should set the biphase rate of the
Mag biphase in the Millennium Metaspeed menu to 10 pulses per frame.
5550 End
Parallel I/O
(Male 9 pin D)
Frame Gnd
BIPH 1
GND
BIPH 2
GND
TLC End
(Female 25 pin D)
GPO
Gnd
Figure 2: Cable to Connect Millennium Biphase to 4025TR
The telecine type item on the KeyLog TRACKER™ Telecine Setup screen must be set to ITK
Millennium. The film frame handling will be set to "Latch Negative Transition" Style when you set the
ITK Millennium Telecine type.
Date of Issue: June 6, 2001
--drain--
3
--Pair 1--
6
--Gnd 1--
7
--Pair 2--
6
--Gnd 2--
J16
2
--------
14
--------
Model 4025TR Film Footage Encoder Manual
4025TR Manual Change Sheet 1.0-2
L
TRACKER™ also selects the default
EY
OG
4025TR End
Parallel I/O
(Male 9 pin D)
Frame Gnd
--drain--
Film Rate
1
FRID/SOF
2
BIPH 1
3
--Pair 1--
GND
6
--Gnd 1--
PreSTOP
4
Load Film
5
BIPH 2
7
--Pair 2--
GND
6
--Gnd 2--
DLO GPI
8
GND
6
GAUGE
9
Millennium End
Biphase 1
(Male 9 pin D)
Frame Gnd
Shi
eld
Mag 1+
7
Ground
6
Mag 2+
3
Ground
4
Page 2 of 6
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