Harman Kardon Avr 20 User Manual

AVR 260 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Harman Kardon AVR 260 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.

Advertising

Digital Video Connections

The AVR 245 is equipped with two HDMI (High-Definition Multimedia
Interface) inputs, and one output. HDMI is capable of carrying digital
audio and video information using a single cable, thus delivering the
highest possible quality picture and sound.

There are different versions of HDMI, depending on the capability of the
source device and the type of signal it is capable of transmitting via the
HDMI connection.

In addition, receivers and processors such as the AVR 245 may handle
the incoming signal in several different ways, depending on their capabil-
ity as well. The AVR 245 is only capable of switching the HDMI data.
That is, the incoming audio and video data will be passed directly to
your HDMI-capable video display, without the AVR 245 processing any
of the data. Although this enables the AVR 245 to be compatible with
virtually any HDMI-capable source device and video display, it requires a
separate audio connection for each source since the AVR 245 doesn’t
have access to the audio data in the HDMI stream.

The AVR 245 will not convert analog video signals to the HDMI format,
and the on-screen displays are not visible when using an HDMI source.
Therefore, you will need to connect the component, composite or S-
video monitor output to your video display (or both, depending on which
video connections your sources use).

The physical HDMI connection is simple. The connector is shaped for
easy plug-in (see Figure 9). If your video display has a DVI input, you
may use an HDMI-to-DVI adapter (not included) to connect it to the
AVR’s HDMI Output.

Figure 9 – HDMI Connection

Analog Video Connections

There are three types of analog video connections: composite video,
S-video and component video.

Composite video is the basic connection most commonly available. The
jack is usually color-coded yellow, and looks like an analog audio jack,
although it is important never to confuse the two. Do not plug a com-
posite video cable into an analog or coaxial digital audio jack, or vice
versa. Both the chrominance (color) and luminance (intensity) compo-
nents of the video signal are transmitted using a single cable. See
Figure 10.

Figure 10 – Composite Video

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. See Figure 11.

Figure 11 – S-Video

Component video separates the video signal into three components –
one luminance (“Y”) and two sub-sampled 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. See Figure 12.

Figure 12 – Component Video

If it’s available on your video display, HDMI is recommended as the best
quality connection, followed by component video, S-video and then
composite video.

Antennas

The AVR 245 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. See Figure 13.

Figure 13 – FM Antenna

The AM loop antenna needs to be assembled. Then connect the two
leads to the screw terminals on the receiver. See Figure 14.

Figure 14 – AM Antenna

RS-232 Serial Port

The RS-232 serial port on the AVR 245 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.

Component
video cable

S-video cable

Composite
video cable

CONNECTIONS

Advertising

Popular Brands

Popular manuals

Advertising

CONNECTIONS

Audio Connections

There are two formats for audio connections: digital and analog. Digital
audio signals are of higher quality, and are required for listening to
sources encoded with digital surround modes, such as Dolby Digital and
DTS. There are two types of digital audio connections: coaxial and opti-
cal. Either type of digital audio connection may be used for each source
device, but never both simultaneously for the same source. However, it’s
okay to make both analog and digital audio connections at the same
time to the same source.

NOTE

: Although HDMI cables are capable of carrying digital

audio signals, the AVR 245 is not designed to process those
signals. Therefore, if your source and video display are both
HDMI-capable, use the HDMI connections for video only. You
will need to make a separate audio connection from the source
device to the AVR 245, and you should make sure to turn the
volume on your television all the way off.

Digital Audio

Coaxial digital audio jacks are usually color-coded in orange. Although
they look similar to analog jacks, they should not be confused, and you
should not connect coaxial digital audio outputs to analog inputs or
vice versa. See Figure 4.

Figure 4 – Coaxial Digital Audio

Optical digital audio connectors are often covered by a shutter to protect
them from dust. The shutter opens as the cable is inserted. Input con-
nectors are color-coded using a black shutter, while outputs use a gray
shutter. See Figure 5.

Figure 5 – Optical Digital Audio

Due to the nature of digital signals as binary bits, they aren’t subject
to signal degradation the way analog signals are. Therefore, the quality
of coaxial and optical digital audio connections should be the same,
although it is important to limit the length of the cable. Whichever type of
connection you choose, Harman Kardon recommends that you always
select the highest quality cables available within your budget.

Analog Audio

Analog connections require two cables, one for the left channel (white)
and one for the right channel (red). These two cables are often attached
to each other for most of their length. See Figure 6.

Most sources that have digital audio jacks also have analog audio jacks,
although some older types of sources, such as tape decks, have only
analog jacks. For sources that are capable of both digital and analog
audio, you may wish to make both connections.

The analog audio connection is strongly recommended if you intend to
use the source with the multiroom system. It’s required if you will be
using the multiroom preamp outputs with an external amplifier to power
your remote speakers, as the AVR 245’s multiroom system is not capa-
ble of converting the digital signal to analog format. It’s suggested that
you also use the analog audio connections when using the surround
back/multiroom speaker outputs, in case another two-channel digital
audio source is in use in the main listening area. The AVR 245 is only
capable of processing one PCM source at a time.

If you wish to record materials from DVDs or other copy-protected
sources, you may only do so using analog connections. Remember to
comply with all copyright laws, if you choose to make a copy for your
own personal use.

Harman Kardon Avr 20 Specs

Figure 6 – Analog Audio

Multichannel analog connections are used with advanced sources where
the digital content is copy-protected and all surround processing is per-
formed inside the source. These types of connections are usually used
with DVD-Audio, SACD, Blu-ray Disc, HD-DVD and other advanced
players. See Figure 7.

Figure 7 – Multichannel Analog Audio

Harman Kardon receivers also include a proprietary, dedicated audio
connection called “The Bridge/DMP”. If you own an iPod with a dock
connector, you may separately purchase The Bridge and connect it to
The Bridge/DMP port on the receiver. See Figure 8. Dock your iPod
(not included) in The Bridge, and you may listen to your audio materials
through your high-performance audio system. You may even use the
AVR 245 remote to control the iPod, with navigation messages
displayed on the front panel and on a video display connected to
the AVR. The Bridge outputs analog audio to the AVR 245, and it is
available to the multiroom system.

Figure 8 – The Bridge