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Introduction
About the KD-VP2500
The KD-VP2500 is a digital video processor, audio transcoder, video/audio switcher and universal
“distribution center”. It is capable of scaling and de-interlacing virtually any input resolution and
outputting to virtually any standard or high definition display up to 1080p. The unit serves as an
excellent solution for interfacing standard or high definition video sources and computers with
displays.
The KD-VP2500 uses motion-adaptive deinterlacing, 3:2 pull down engines and 3-D noise
reduction. The unit also features time base correction (TBC) and accepts analog and digital video
signals up to 1080i.
The design intention of limiting input resolution only up to 1080i serves a practical purpose
considering that the KD-VP2500 is a video scaler. To understand why, consider two scenarios of
creating HD-DVD and Blu-Ray content.
Scenario One:
Original material is recorded at 1080P/24hz to the DVD. This signal is read from the disc then
converted loss free to 1080i/60hz. From here, HD-DVD and Blu-Ray players upscale this
1080i/60Hz signal to 1080P/60hz using low cost scaler chips. Therefore, the 1080P output on
consumer players started out as a 1080i signal and then ran through an inferior scaling chip to
achieve 1080P.
Scenario Two:
Original material is recorded at 1080i/60hz to the DVD. From here, HD-DVD and Blu-Ray
players upscale this 1080i/60Hz signal to 1080P/60hz using low cost scaler chips. Again, the
1080P output on consumer players started out as a 1080i signal and then ran through an
inferior scaling chip to achieve 1080P.
The component outputs on HD-DVD and Blu-Ray players always output the 1080i/60hz signal
before scaling, making these analog outputs more ‘true’ to the original content. The HDMI outputs
are the only signals that are affected by these low cost scaling circuits.
When HD-DVD and Blu-Ray devices are connected to the KD-VP2500 via HDMI, the Key Digital
unit forces the players to output 1080i, the signal closest to the original format. We then get access
to the cleanest possible signal and transfer the responsibility of scaling to 1080P to the high quality
scaling engine in the KD-VP2500.
Any audio input-to-output routing combination is possible on the KD-VP2500. The audio
processing capabilities of the unit allow analog to digital (Coaxial, Toslink and HDMI PCM), digital to
digital (format conversion) and digital to analog conversion.
Video/Audio Connections:
INPUT
Input
Analog:
Component (3)
[RCA style connectors]
VGA/RGBHV (1)
[VGA DB15 style connector]
Composite (3)
[RCA style connectors]
S-Video (2)
[standard S-Video DIN connectors]
Digital:
HDMI/DVI (2)
[for DVI cables, use DVI to HDMI adapter]
Audio
Analog:
Stereo Coaxial (4*)
[RCA style connectors]
Digital:
Coaxial (with support for passing PCM, AC3, DTS, etc.)
(4*)[RCA style connectors]
Optical (with support for passing PCM, AC3, DTS, etc.
(2) [Toslink style connectors]
* Left channel analog audio and coaxial digital audio share the same input port. This is an either/or option, whereas
the port can be used for either analog audio or coaxial digital audio, but not both.
OUTPUT
Video
Analog:
Component (1*)
[RCA style connectors]
VGA/RGBHV (1*)
[RCA style connectors]
Digital:
HDMI/DVI
[for DVI cables, use DVI to HDMI adapter]
Audio
Analog:
Stereo Coaxial (1)
[RCA style connectors]
Digital:
Coaxial (1) (with support for passing PCM, AC3, DTS, etc.)
[RCA style connectors]
Optical (1) (with support for passing PCM, AC3, DTS, etc)
[Toslink style connectors]
* Component video and VGA/RGBHV signals share some of the same output ports. This is an either/or option,
whereas the ports can be used for either component video or VGA/RGBHV, but not both.
