evertz 5010, Инструкция по эксплуатации

Страница: 26 / 108

Model 5010 Time Code Master Manual
Page 2-4
Revision 3.1.1
INSTALLATION
2.4. VIDEO CONNECTIONS
2.4.1. Generator Sync Lock – Model 5010 and 5010-VITC
For proper frame/address synchronization in videotape applications, the generator must be locked to a
stable 1 volt p-p composite video or colour black source, applied to the generator REF VIDEO IN video
loop. The internal sync separator has a high impedance input tapped off the loop through; therefore,
the video signal must be properly terminated at the end of the line.
When colour frame synchronization is desired, the sync to sub-carrier (Sc-H) phase relationship of the
video source must conform to the NTSC RS-170-A or the PAL 8 field specification. Selection of the
colour framed or non colour framed mode is accomplished from the front panel. (See Section 4.5.12)
When the video source does not meet the colour frame specifications, the non colour frame mode must
be selected to ensure a proper generator lock condition.
2.4.2. Generator Sync Lock – Model 5010-24 and 5010-VITC-24
When the 5010-24 is operating in the 24FPS mode, it will genlock to a 23.98 FPS 625 line sync
reference (sometimes referred to as ‘slow PAL’). The LED labeled 23.98 on the front panel is used to
indicate that the 5010-24 is properly genlocked to the 23.98 FPS sync source. When it operates in the
NTSC mode it genlocks to a standard NTSC colour black reference.
In addition to a normal frame lock to the reference video, the 5010-24’s time code output can be
synchronized to a 6 Hz reference input connected to pin 7 of the PARALLEL I/O connector. See
section 4.10.2 for information about connecting and using the 6 Hz reference.
Both the 23.98 FPS sync and the 6 Hz reference signal are generated by the Evertz 7750SRG-HD
Sync generator Card. See the Evertz website (
www.evertz.com ) for more information.
2.4.3. Character Inserter Video
The input video on which the characters are to be displayed is connected to the VIDEO CHAR GEN
INPUT connector. The video input has an internal 75 ohm termination.
The program video with characters inserted is available on the VIDEO CHAR GEN OUTPUT connector
and may be used to drive a preview monitor or a video recorder. Characters are keyed into the video
connected to the VIDEO CHAR GEN INPUT connector. Size, position, and style of the character
displays are controlled from the on screen programming menu.
"
In order to use the on screen programming menu system, video must be applied to
the VIDEO CHAR GEN INPUT connector and the VIDEO CHAR GEN OUTPUT must be
connected to a video monitor.