Overview
3
3 Overview
The
TR-1YC
and the
TR-2YC
are high performance video isolation
transformers for s-video (Y/C) signals. In many applications, the connection
between video sources and acceptors induces 50Hz or 60Hz ground loops,
with an undesirable effect such as hum bars
1
and audio hum. The
TR-1YC
and the
TR-2YC
provide complete isolation between the video source and
receptor, thus eliminating video hum, ground loops
2
, and DC offsets which
can degrade picture quality.
In the
TR-1YC
unit, the luminance signal (Y) is transformer coupled while
the band-limited chrominance (C) signal is coupled via a capacitor with high
voltage breakdown. The unit is mainly intended to solve ground problems and
DC offsets.
In the
TR-2YC
unit, both the luminance (Y) signal and the chrominance (C)
signal are transformer-coupled to allow the broadband signal to pass with
minimum deterioration.
Both the
TR-1YC
and
TR-2YC
units:
Are designed to withstand very high potential differences - on both
channels - between the input and output
Allow the user to select the ground link by dipswitches
Are housed in a Kramer TOOLS enclosure and require no power supply –
making them ideal for field applications
To achieve the best performance:
Connect only good quality connection cables, thus avoiding interference,
deterioration in signal quality due to poor matching, and elevated noise
levels (often associated with low quality cables)
Avoid interference from neighboring electrical and magnetic appliances
that may adversely influence signal quality and position your Kramer
Isolation Transformers
away from moisture, excessive sunlight and dust
1 May show as a dark or light horizontal bar which slowly scrolls up or down the screen
2 Differences in ground potential may result in ground loops
