Harman Kardon AVR 145, Service Manual

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CONNECTIONS
S-video, or “separate” video, transmits the chrominance and luminance
components using separate wires contained within a single cable. The
plug on an S-video cable contains four metal pins, plus a plastic guide
pin. Be careful to line up the plug correctly when you insert it into the
jack on the receiver, source or video display.
Figure 10 – S-Video
Component video separates the video signal into three components –
one luminance (“Y”) and two subsampled color signals (“Pb” and “Pr”) –
that are transmitted using three separate cables. The “Y” cable is color-
coded green, the “Pb” cable is colored blue and the “Pr” cable is col-
ored red.
Figure 11 – Component Video
If it’s available on your video display, component video is recom-
mended as the best quality connection, followed by S-video and then
composite video.
Antennas
The AVR 145 uses separate terminals for the included FM and AM
antennas that provide proper reception for the tuner.
The FM antenna uses a 75-ohm F-connector.
Figure 12 – FM Antenna
The AM loop antenna needs to be assembled. Then connect the two
leads to the screw terminals on the receiver.
Figure 13 – AM Antenna
RS-232 Serial Port
The RS-232 serial port on the AVR 145 is used only for data. If
Harman Kardon releases a software upgrade for the receiver’s operating
system at some time in the future, the upgrade may be downloaded
to the AVR using this port. Complete instructions will be provided at
that time.
C omponent
video cable
C ompo s ite
video cable
AVR 145 OM (New) 8/4/06 1:19 PM Page 17
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AVR145
harman/kardon