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harman/kardon

AVR347
7 X 55W 7.1 CHANNEL A/V RECEIVER

SERVICE MANUAL




CONTENTS
ESD WARNING.....................................2 DISASSEMBLY....................................43
LEAKAGE TESTING...............................3 UNIT EXPLODED VIEW..........................48
BASIC SPECIFICATIONS.......................4 EXPLODED VIEW PARTS LIST...............49
PACKAGING........................................5 AMP BIAS ADJUSTMENT......................50
FRONT PANEL CONTROLS.....................6 BLOCK DIAGRAM................................51
REAR PANEL CONNECTIONS................8 ELECTRICAL PARTS LIST....................52
REMOTE CONTROL FUNCTIONS..........11 PCB DRAWINGS.................................98
CONNECTIONS..................................14 SEMICONDUCTOR PINOUTS...............107
OPERATION.......................................33 SCHEMATICS....................................209
TROUBLESHOOTING GUIDE.................41 WIRING DIAGRAM...................................219
PROCESSOR RESET............................42


harman/kardon, Inc.
250 Crossways Park Dr.
Woodbury, New York 11797 Rev 0 6/2007
AVR347 harman/kardon




Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called

Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field effect transistors and

semiconductor "chip" components.

The following techniques should be used to help reduce the incidence of component damage caused by static electricity.

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any electrostatic charge on

your body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging wrist strap device,

which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as aluminum foil, to

prevent electrostatic charge build-up or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges

sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical change sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most replacement

ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or comparable conductive material.)

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material to the

chassis or circuit assembly into which the device will be installed.

CAUTION : Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the brushing together

or your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity sufficient to damage an ES devices.




Each precaution in this manual should be followed during servicing.

Components identified with the IEC symbol in the parts list are special significance to safety. When replacing a component identified with

, use only the replacement parts designated, or parts with the same ratings or resistance, wattage, or voltage that are designated in the

parts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably

insulated from the supply circuit before retuming the product to the customer.




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AVR347 harman/kardon


SAFETY PRECAUTIONS

The following check should be performed for the continued
protection of the customer and service technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known earth ground (water
pipe, conduit, etc.) by connecting a leakage current tester
between the earth ground and all exposed metal parts of the
appliance (input/output terminals, screwheads, metal
overlays, control shaft, etc.). Plug the AC line cord of the
appliance directly into a 120V AC 60Hz outlet and turn the
AC power switch on. Any current measured must not exceed
o.5mA.




Reading should
not be above
Leakage
0.5mA
Device current
under tester
test

Test all
exposed metal
surfaces
Also test with
plug reversed
(Using AC adapter Earth
plug as required) ground


AC Leakage Test




ANY MEASUREMENTS NOT WITHIN THE LIMITS
OUTLINED ABOVE ARE INDICATIVE OF A
POTENTIAL SHOCK HAZARD AND MUST BE
CORRECTED BEFORE RETURNING THE APPLIANCE
TO THE CUSTOMER.




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AVR347 harman/kardon

AVR 347 TECHNICAL SPECIFICATIONS
Audio Section AM Tuner Section
Stereo Mode Frequency Range 520­1720kHz
Continuous Average Power (FTC) Signal-to-Noise Ratio 45dB
70 Watts per channel, 20Hz­20kHz, Usable Sensitivity Loop 500µV
@ <0.07% THD, both channels driven into 8 ohms Distortion 1kHz, 50% Mod 0.8%
Selectivity ±10kHz, 30dB
Seven-Channel Surround Modes
Power per Individual Channel
Video Section
Front L&R channels: Television Format NTSC
55 Watts per channel Input Level/Impedance 1Vp-p/75 ohms
@ <0.07% THD, 20Hz­20kHz into 8 ohms Output Level/Impedance 1Vp-p/75 ohms
Center channel: Video Frequency Response
55 Watts @ <0.07% THD, 20Hz­20kHz into 8 ohms (Composite and S-Video) 10Hz­8MHz (­3dB)
Surround (L & R Side, L & R Back) channels: Video Frequency Response
(Component Video) 10Hz­100MHz (­3dB)
55 Watts per channel
HDMITM Audio and video processing
@ <0.07% THD, 20Hz­20kHz into 8 ohms
Input Sensitivity/Impedance General
Linear (High-Level) 200mV/47k ohms Power Requirement AC 120V/60Hz
Power Consumption 65W idle, 540W maximum
Signal-to-Noise Ratio (IHF-A) 100dB (7 channels driven)
Surround System Adjacent Channel Separation Dimensions (Product) (Shipping)
Pro Logic I/II 40dB Width 17-5/16 inches (440mm) 22 inches (559mm)
Dolby Digital (AC-3) 55dB Height 6-5/8 inches (165mm) 10-1/2 inches (267mm)
Depth 15 inches (382mm) 18-1/4 inches (464mm)
DTS 55dB
Frequency Response (Product) (Shipping)
@ 1W (+0dB, ­3dB) 10Hz ­130kHz Weight 30.6 lb (13.9kg) 35.6 lb (16.2kg)
High Instantaneous
Current Capability (HCC) ±35 Amps Depth measurement includes knobs, buttons and terminal connections.
Height measurement includes feet and chassis.
Transient Intermodulation All features and specifications are subject to change without notice.
Distortion (TIM) Unmeasurable
Slew Rate 40V/µsec Harman Kardon and Logic 7 are trademarks of Harman International Industries, Incorporated, registered
in the United States and/or other countries. EzSet/EQ, TheBridge and Designed to Entertain are trademarks
TM




of Harman International Industries, Incorporated.
FM Tuner Section
A-BUS is a registered trademark of LeisureTech Electronics Pty Ltd.
Frequency Range 87.5­108.0MHz
Usable Sensitivity IHF 1.3µV/13.2dBf Apple, iTunes and iPod are trademarks of Apple Inc., registered in the U.S. and other countries.
Signal-to-Noise Ratio Mono/Stereo 70/68dB Shuffle is a trademark of Apple Inc.
Distortion Mono/Stereo 0.2/0.3% Audiovox is a registered trademark of Audiovox Corporation.
Stereo Separation 40dB @ 1kHz Blu-ray Disc is a trademark of the Blu-ray Disc Association.
Selectivity ±400kHz, 70dB CEA is a registered trademark of the Consumer Electronics Association.
Image Rejection 80dB Cirrus Logic is a registered trademark of Cirrus Logic, Inc.
IF Rejection 90dB
Dolby, Pro Logic and the double-D symbol are trademarks of Dolby Laboratories.
Manufactured under license from Dolby Laboratories.
I
"DTS" and "DTS ES Neo:6" are registered trademarks of DTS, Inc. "96/24" is a trademark of DTS, Inc.
Faroudja and DCDi by Faroudja are registered trademarks of Genesis Microchip Inc.
The AVR 347 is Simplay HDTM-verified for compatibility HD-DVD is a trademark of the DVD Format/Logo Licensing Corporation (DVD FLLC).
via the HDMI connection with other Simplay HD-verified products. HDMI is a trademark of HDMI Licensing LLC.
Microsoft and Xbox are registered trademarks of Microsoft Corporation in the United States and other countries.
SACD is a trademark of Sony Corporation.
The Simplay HD logo and the Simplay, Simplay HD and Simplay Labs trademarks are owned by
Please register your AVR 347 on our Web site at Silicon Image, Inc. and are used under license from Silicon Image, Inc. and/or Simplay Labs, LLC.
www.harmankardon.com. TiVo is a registered trademark of TiVo Inc.
NOTE: You'll need the product's serial number. XM and XM Ready are registered trademarks of XM Satellite Radio.
At the same time, you can choose to be notified about
our new products and/or special promotions.



4
5
AVR347 harman/kardon

FRONT-PANEL CONTROLS
Main Power Switch: This mechanical switch turns the power supply Surround Mode: Press this button to select a surround sound (e.g.,
on or off. It is usually left pressed in (On position), and cannot be turned multichannel) mode group. Choose from the Dolby modes, DTS modes,
on using the remote control. Logic 7 modes, DSP modes or Stereo modes.
Standby/On Switch: This electrical switch turns the receiver on for Surround Select: After you have selected the desired surround
playback, or leaves it in Standby mode for quick turn-on using this mode group, press this button to select a specific mode.
switch or the remote control.
Surround Mode Indicators: One or more of these icons may light
Power Indicator: This LED has three possible modes. When main up as you select different surround modes. The Message Display also
power is turned off, the LED is dark and the receiver won't respond to indicates the surround mode.
any button presses. When main power is turned on, but before the
Standby/On Switch is used, the LED turns amber to indicate that the Analog Audio, Video and Digital Audio Inputs: Connect a
receiver is in Standby mode and ready to be turned on. When the source component that will only be used temporarily, such as a camera
receiver is turned on, the LED turns blue. or game console, to these jacks. Use only one type of audio and one
type of video connection.
Source Select: Press this button to select a source device, which
is a component where a playback signal originates, e.g., DVD, CD, Speaker/Channel Input Indicators: The box icons indicate
cable TV, satellite or HDTV tuner. which speaker positions you have configured, and the size (frequency
range) of each speaker. When a digital audio input is used, letters will
Source Indicators: The name of the current source input lights up. light inside the boxes to indicate which channels are present in the
The indicated input changes each time the Source Select button is incoming signal.
pressed.
Navigation: These buttons are used together with the following five
Volume Knob: Turn this knob to raise or lower the volume, which will buttons to make selections.
be shown in decibels (dB) in the Message Display.
Tone Mode: Press this button to access the tone controls (bass and
Message Display: Various messages appear in this two-line display treble). Use the < / > Navigation Buttons to make your selections.
in response to commands and changes in the incoming signal. When
the on-screen display menu system (OSD) is in use, the message OSD Speaker: Press this button to configure speaker sizes; that is, the
ON will appear to remind you to check the video display. low-frequency-range capability of each speaker.

Tuner Band: Press this button to select the tuner as the source, to Channel Level Adjust: Press this button to set the output level for
switch between the AM and FM bands, or to select XM satellite radio. each channel so that all speakers sound equally loud at the listening
position.
Tuning: Press either side of this button to tune a radio station or XM
channel. Digital Input Select: Press this button to select the specific digital
audio input (or analog audio input) you used for the current source.
Tuning Mode: This button toggles between manual (one frequency
step at a time) and automatic (seeks frequencies with acceptable signal Delay: Press this button to set delay times that compensate for
strength) tuning mode. It also toggles between stereo and mono modes placing the speakers at different distances from the listening position.
when an FM station is tuned.
When XM Radio is in use, pressing this button repeatedly displays the
channel name, category, artist and track title in the lower line of the
Message Display. For traffic-and-weather channels, this button displays
the city, channel name, local weather and local temperature.
Preset Stations: Press this button to select a preset radio station.
Headphone Jack/EzSet/EQ Microphone Input: Plug a 1/4"
headphone plug into this jack for private listening.
This jack is also used to connect the supplied microphone before begin-
ning the EzSet/EQ procedure described in the Initial Setup section. To
begin EzSet/EQ, plug the supplied microphone into this jack, place the
microphone at the listening position, and follow the directions given in
the SPEAKER SETUP on-screen menu.




6
AVR347 harman/kardon


Source Digital Input
Speaker Size Tone Mode Message Display Indicators Select
Setup
Channel Level Navigation Surround Mode Indicators Speaker/Channel Delay Volume
Adjust Input Indicators




Headphone
Power Surround Tuning Preset Stations Jack/EzSet/EQ Digital
Mode Microphone Audio Inputs Video 4
Indicator
Input (Optional 4 and Analog Audio
Standby/On Main Power Surround Tuner Band Source Tuning Coaxial 4) Video 4 Inputs
Switch Switch Select Select Mode Video Inputs




NOTE: To make it easier to follow the instructions throughout the manual that refer to this illustration, a copy of this page may be downloaded from the Product Support section at
www.harmankardon.com.




7
AVR347 harman/kardon

REAR-PANEL CONNECTIONS
AM and FM Antenna Terminals: Connect the included AM and Remote IR Carrier Output: This output is similar in function to
FM antennas to their respective terminals for radio reception. the Remote IR Output, with the difference that this jack outputs the
full infrared signal as received by the AVR's IR sensor or the Remote
XM Antenna Jack: Plug in an XM antenna module here. The XM IR Input, while the Remote IR Output jack outputs a "stripped" signal
antenna module is purchased separately, and should specify that it is that has no carrier frequency. The full signal may be required by some
for home use with an XM Ready® product. You will need to subscribe to components with IR inputs. It may also be required when you connect
the XM service, which is available separately, and activate the service for external IR emitters or other devices to the AVR to pass IR signals to
your antenna module. (XM service is not available in Alaska and Hawaii.) other components.
Front, Center and Surround Speaker Outputs: Use two- Multiroom Audio Outputs: Connect these jacks to an external
conductor speaker wire to connect each set of terminals to the correct amplifier to power the speakers in the remote zone of a multiroom
speaker. Remember to observe the correct polarity (positive and system. When these jacks are used, it is possible to have a full 7.1-
negative connections). Always connect the positive lead to the colored channel system in the main listening room at the same time the
terminal on the receiver and the red terminal on the speaker. Connect multiroom system is in use.
the negative lead to the black terminal on both the receiver and the
speaker. See the Connections section for more information on connect- A-BUS Port: Use a Category 5/5e cable to connect this port to
ing your speakers. optional A-BUS equipment for multiroom operation. When the A-BUS
system is used, it is possible to have a full 7.1-channel system in the
Surround Back/Multiroom Speaker Outputs: These speaker main listening room at the same time the multiroom system is in use.
outputs may be used either for the surround back channels in a 7.l-
channel home theater, or they may be reassigned to a remote room for Video 1, Video 2, Video 3 and DVD Audio/Video Inputs:
use with a multiroom system. When these outputs are reassigned for These jacks may be used to connect your video-capable source
multiroom operation, only a 5.1-channel configuration will be available in components (e.g., VCR, DVD player, cable TV box) to the receiver.
the main listening room. Use the on-screen menu system to configure Remember to use only one type of video connection for each source.
these channels as desired. See the Connections section for more information on audio and video
connection options for each source component.
As with the other speaker outputs, remember to observe proper polarity
by connecting the positive and negative output terminals to the corre- Video 1 Audio/Video Outputs: These jacks may be used to
sponding terminals on each speaker. connect your VCR or another recorder.
Subwoofer Output: If you have a powered subwoofer with a line- Composite and S-Video Monitor Outputs: If any of your
level input, connect it to this jack. sources use composite or S-video connections, you may need to
connect one or both of these monitor outputs to the corresponding
Preamp Outputs: Connect these jacks to an external amplifier if inputs on your television or video display in order to view the sources
more power is desired. and to view the on-screen displays. If your video display is equipped
Surround Back/Multiroom Preamp Outputs: These outputs with component video or HDMI inputs, you may take advantage of the
may be used with an external amplifier either to power the surround AVR 347's transcoding capability, which transcodes composite and
back channels, or to power the speakers in the remote zone of a multi- S-video signals to component video and HDMI, allowing for only a
channel system. Use the on-screen menu system to configure these single video connection from the AVR to the video display.
channels as desired. HDMI Inputs and Output: HDMI (High-Definition Multimedia
Remote Infrared (IR) Input and Output: When the remote IR Interface) is a newer type of connection for transmitting digital audio and
receiver on the front panel is blocked, such as when the AVR is placed video signals between devices. With the AVR 347's powerful processor,
inside a cabinet, connect an optional IR receiver to the Remote IR Input you may connect up to two HDMI-equipped source devices to the HDMI
jack for use with the remote control. The Remote IR Output may be inputs using a single-cable connection, while benefiting from superior
connected to the Remote IR Input of a compatible source device (or digital audio and video performance. However, if your video display is
other product) to enable remote control through the AVR. This is particu- not HDMI-compatible, you will need to connect the device to one of the
larly useful in multiroom applications, when you wish to control the other source inputs, selecting a coaxial or optical digital audio input and
source device from the remote room (when used with the Multiroom IR analog video input. See the Connections and Installation sections for
Input). When several source devices are used, connect them in "daisy more information.
chain" fashion. If your video display has an HDMI input, but some of your sources have
Multiroom Infrared (IR) Input: Connect a remote IR receiver only analog video outputs, you may still rely on just the HDMI video
located in the remote zone of a multiroom system to this jack to control connection to your display; the AVR 347 will automatically transcode
the AVR and any source devices connected to the Remote IR Output analog video signals up to 720p to the HDMI format. High-resolution
from the remote zone. analog 1080i or higher signals are not available at the HDMI Output.



8
AVR347 harman/kardon

REAR-PANEL CONNECTIONS
The AVR 347 is Simplay HD-verified for compatibility via the HDMI · Due to the design of some video displays, analog 480p or
connection with other Simplay HD-verified products. 720p component video source signals may produce artifacts
when used with the AVR's analog video outputs (composite,
CD and Tape Audio Inputs: These jacks may be used to connect S-video or component video). If this occurs, try changing the
audio-only source components (e.g., CD player, tape deck). Do not Video Mode setting in the INPUT SETUP menu, or connecting
connect a turntable to these jacks without a phono preamp. the source device's video output directly to your video display.
Tape Outputs: These jacks may be used to connect a CDR or However, for best results, we recommend you consider
another audio-only recorder. upgrading to an HDMI-capable video display.

Coaxial and Optical Digital Audio Inputs: If a source has RS-232 Serial Port: This specialized connector may be used with
a compatible digital audio output, connect it to one of these jacks your personal computer in case Harman Kardon offers a software
for improved audio performance. Use only one type of digital audio upgrade for the receiver at some time in the future.
connection for each source.
RS-232 Mode: Leave this switch popped out in the Operate position
Coaxial and Optical Digital Audio Outputs: If a source is also unless the AVR 347 is being upgraded.
an audio recorder, you may connect a compatible digital audio output
to the recorder's input for improved recording quality. RS-232 Reset: This switch is only used during a software upgrade.
A standard processor reset is performed by pressing and holding the
The Bridge/DMP Input: Connect the optional Harman Kardon front-panel Tone button.
The
Bridge
to this input for use with your iPod (not included). Make
TM




sure the receiver is turned off (in Standby mode) when connecting Switched AC Accessory Outlet: You may plug the AC power
The Bridge. cord of one source device into this outlet, and it will turn on whenever
you turn on the receiver. Do not use a source that consumes more than
6-/8-Channel Inputs: Connect the multichannel analog audio 50 watts of power.
outputs of a DVD-Audio, SACDTM, Blu-ray DiscTM or HD-DVDTM player
(or any other external decoder) to these jacks to enjoy these proprietary AC Power Cord Input: After you have made all other connections,
formats. plug the AC power cord into an unswitched outlet. Plug the female end
of the cord into this receptacle, which conveniently allows you to install
NOTE: When an HD-DVD or Blu-ray Disc player has an all wiring ahead of time.
onboard digital decoder, it is not necessary to connect it to
the 6-/8-Channel Analog Audio Inputs. Only a digital audio
connection (HDMI, coaxial or optical) is needed.
Component Video Inputs: If both a video source (e.g., DVD
player or HDTV tuner) and your television or video display have analog
component video (Y/Pb/Pr) capability and if you are not using HDMI
connections for the device, then you may connect the component video
outputs of the source to one of the two component video inputs. Do
not make any other video connections to that source.
Component Video Monitor Outputs: If you are using one of
the Component Video Inputs and your television or video display is
component-video-capable and if you are not connecting the HDMI
output to our display, you may connect these jacks to the corresponding
inputs on your video display.
NOTES:
· Due to copy-protection restrictions, there is no output at the
Component Video Monitor Outputs for copy-protected
sources.
· High-resolution 1080i and 1080p video signals are not
available at the HDMI Output, and are downconverted to
720p for the Component Video Outputs. If your source output
is analog high-resolution video, either use the Component
Video Outputs, lower the output resolution of your source
device, or connect your source's component video outputs
directly to your video display.


9
AVR347 harman/kardon

Component Coaxial Digital
Video 3 Video 1 Video XM Audio
Tape A/V A/V DVD A/V Inputs Antenna Inputs RS-232 RS-232
Outputs FM Antenna Inputs Outputs Inputs (1, 2 & 3) Jack (1, 2 & 3) Reset Serial Port
Component The HDMI HDMI 1 HDMI 2
Video 2 Video 1 Video Video Bridge/ Output Input Input
Tape A/V A/V Monitor Monitor DMP RS-232
Inputs AM Antenna Inputs Inputs Outputs Outputs Input Mode




CD Preamp Surround Front Speaker 6-/8- Coaxial Switched AC Optical Digital
Inputs Outputs Back/ Outputs Channel Digital Accessory Audio Inputs (1, 2 & 3)
Multiroom Inputs Audio Outlet
Preamp Multiroom Output
Outputs IR Input
Multiroom A-BUS Port Subwoofer Remote Surround Surround Center Speaker Optical Digital AC Power
Audio Output IR Input Back/Multiroom Speaker Outputs Audio Output Cord Input
Outputs Remote IR Speaker Outputs Outputs
Carrier Remote
Output IR Output




NOTE: To make it easier to follow the instructions throughout the manual that refer to this illustration, a copy of this page may be downloaded from the Product Support section at
www.harmankardon.com.




10
AVR347 harman/kardon

MAIN REMOTE CONTROL FUNCTIONS
The AVR 347 remote is capable of controlling 11 devices, including the IR Transmitter Lens: As buttons are pressed on the remote,
AVR itself and an iPod docked in the optional The Bridge accessory. infrared codes are emitted through this lens. Make sure it is pointing
During the installation process, you may program the codes for each toward the component being operated.
of your source components into the remote. Each time you wish to use
the codes for any component, first press the Selector button for that Power On Button: Press this button to turn on the AVR or another
component. This changes the button functions to the appropriate codes device. The Master Power Switch on the AVR 347's front panel must
for that product. first have been switched on.
NOTE: Several of the Input Selectors are shared between two Mute Button: Press this button to mute the AVR 347's speaker and
devices. The selector button will light in red when the remote headphone outputs temporarily. To end the muting, press this button
is in the device mode printed on the button, and it will light in or adjust the volume. Muting is also canceled when the receiver is
green for the device mode printed above the button. To switch turned off.
between the two device modes, press the selector twice quickly
in succession. The selector will remain in the last-selected mode Program Indicator: This LED lights up or flashes in one of three colors
until the next time you press the selector twice quickly. as the remote is programmed with codes.

For example, the first time you press the DVD button, the button Power Off Button: Press this button to turn off the AVR 347 or
will light up in red, indicating that the remote is in DVD mode. If another device.
you press another selector, such as the VID3 selector, and then AVR Selector: Press this button to switch the remote to the codes
press the DVD button again, the DVD button will remain red, that operate the receiver.
indicating the remote is still in DVD mode. Now press the DVD
button twice quickly. At the first press the button will light red, Input Selectors: Press one of these buttons to select a source
indicating that the remote is in DVD mode. On the second press device, which is a component where a playback signal originates, e.g.,
the button will turn green, indicating that the remote is now in CD DVD, CD, cable TV, satellite or HDTV tuner, or an iPod docked in the
mode. If you press a different selector and return to the DVD/CD optional The Bridge. This will also turn on the receiver and switch the
Selector, you will observe that the remote is still in CD mode. remote's mode to operate the source device.
Each Input Selector has been preprogrammed to control certain types XM Radio Button: Press this button to select XM Satellite Radio as
of components, with only the codes specific to each brand and model the source. You will need to have purchased and activated an XM antenna
changing, depending on which product code is programmed. The module, and you will also need to subscribe to the XM Radio service.
device types programmed into each selector may not be changed; Visit www.xmradio.com for more information.
however you may program the HDMI 1 and 2 selectors with the DVD,
Cable/Satellite or VCR/PVR device type. AM/FM Button: Press this button to select the tuner as the source,
or to switch between the AM, FM and XM Radio bands.
DVD: Controls DVD players and recorders.
6-/8-Channel Input Selector: Press this button to select the
CD: Controls CD players and recorders. 6-/8-Channel Inputs as the audio source. The receiver will use the video
Tape: Controls cassette decks. input and remote control codes for the last-selected video source.

Video 1: Controls VCRs, TiVo® and PVRs. Learn Button: The AVR 347 remote is capable of "learning"
individual IR codes from the original remote that came with your TV
Video 2: Controls cable and satellite television set-top boxes. or a device that is connected to any of the source inputs. See the
Video 3: Controls televisions and other video displays. Advanced Functions section for instructions on learning remote codes.

Video 4: Controls televisions and other video displays. Test Tone: Press this button to activate the test tone for manual
output-level calibration.
HDMI 1 and 2: Each code set controls a source device (VCR/PVR,
DVD player or cable/satellite set-top box) connected to one of these TV/Video: This button has no effect on the receiver, but is used to
two inputs. switch video inputs on some video source components.

XM: Controls the AVR functions for XM Satellite Radio. Sleep Button: Press this button to activate the sleep timer, which
turns off the receiver after a programmed period of time of up to
The Bridge/DMP: Controls an iPod docked in The Bridge. 90 minutes.
Any given button may have different functions, depending on which Volume Controls: Press these buttons to raise or lower the volume,
component is being controlled. Some buttons are labeled with these which will be shown in decibels (dB) in the Message Display.
functions. For example, the Sleep and DSP Surround Buttons are
labeled for use as Channel Up/Down Buttons when controlling a televi- DSP Surround: Press this button to select a DSP surround mode
sion or cable box. See Table A8 in the appendix for listings of the (Hall 1, Hall 2, Theater).
different functions for each type of component.


11
AVR347 harman/kardon

IR Transmitter Lens

Power On Mute
Program Indicator Power Off
AVR Selector Input Selectors

AM/FM 6-/8-Channel Input Selector
XM Radio Learn
Test Tone TV/Video
Sleep
Volume Controls
DSP Surround
On-Screen Display Multiroom

Channel Level Speaker Setup

Navigation
Set
Digital Input
Delay


Numeric Keys


Tuning Mode Memory
Direct Station Entry Clear
Tuning Preset Stations Selectors
Tone Mode Disc Skip
Macros

Surround Mode Selectors
Night Mode
Dim
Track Skip
Transport Controls

Backlight


NOTE: To make it easier to follow the instruc-
tions throughout the manual that refer to this
illustration, a copy of this page may be down-
loaded from the Product Support section at
www.harmankardon.com.



12
AVR347 harman/kardon

MAIN REMOTE CONTROL FUNCTIONS
On-Screen Display (OSD): Press this button to activate the press the Set Button repeatedly until PRESET SEARCH appears. Use
on-screen menu system. the // ¤ Buttons to select a letter (A through E) representing one of
the five banks of preset memory slots. Then press the Memory Button,
Multiroom: Press this button to control the multiroom system. followed by a Numeric Key (1 through 8) for the precise preset memory
Three settings are available: MULTI ON/OFF, which is used to turn the location you wish to save the channel in.
multiroom system on or off; MULTI LEVEL, which adjusts the volume
of the remote zone only; and MULTI INPUT, which is used to select Tuning: Press these buttons to tune a radio station or XM Radio
the source input for the remote zone. See Multiroom Operation in channel. For the AM and FM bands, and depending on whether the
the Advanced Functions section for more information on using the tuning mode has been set to manual or automatic, each press will either
AVR 347's multiroom system. change one frequency step at a time, or seek the next frequency with
acceptable signal strength.
Channel Level: Press this button to adjust the output levels for each
channel so that all speakers sound equally loud at the listening position. Direct: Press this button before using the Numeric Keys to directly
Usually this is done while playing an audio selection, such as a favorite CD, enter a radio station frequency (AM or FM bands only).
after you have calibrated the levels using EzSet/EQ, as described in the Initial
Setup section. Clear: Press this button to clear a radio station frequency you have
started to enter.
Speaker Setup: Press this button to configure speaker sizes, that is,
the low-frequency capability of each speaker. Usually this is done using Preset Stations Selector: Press these buttons to select a preset
the on-screen menu system, as described in the Initial Setup section. radio station.

Navigation (// ¤/ < / > ) and Set Buttons: These buttons are For XM Radio, first press the Set Button repeatedly until PRESET SEARCH
used to make selections within the on-screen menu system, or when appears and then use the // ¤ Buttons to select the letter of the
accessing the functions of the four buttons surrounding this area of the desired bank of presets.
remote ­ Channel Level, Speaker Setup, Digital Input or Delay. Tone Mode: Press this button to access the tone controls (bass and
Digital Input Select: Press this button to select the specific digital treble). Use the Navigation Buttons to make your selections.
audio input (or analog audio input) you used for the current source. Disc Skip: This button has no effect on the receiver, but is used with
Delay: Press this button to set delay times that compensate for placing some optical disc changers to skip to the next disc.
the speakers at different distances from the listening position, or to Macros: These buttons may be programmed to execute long command
resolve a "lip sync" issue that may be caused by digital video process- sequences with a single button press. They are useful for programming the
ing. This may also be done using the on-screen menu system, as command to turn on or off all of your components, or for accessing special-
described in the Initial Setup section. ized functions for a different component than you are currently operating.
Numeric Keys: Use these buttons to enter radio station frequencies Surround Mode Selectors: Press any of these buttons to select
or to select station presets. When the AM or FM band is in use, press a type of surround sound (e.g., multichannel) mode. Choose from the
the Direct button before entering the station frequency. Dolby modes, DTS modes, Logic 7 modes or Stereo modes. Each
When listening to XM Radio, you may enter channel numbers without press of a button will cycle to the next available variant of that mode.
first pressing the Direct Button; however, use the Preset Stations Not all modes or mode groups are available with all sources.
Selectors to access the preset stations. To access another bank of Night Mode: Press this button to activate Night mode with specially
XM presets, press the Set Button repeatedly until PRESET SEARCH encoded Dolby Digital discs or broadcasts. Night mode compresses the
appears, then use the // ¤ Buttons to select the letter of the audio so that louder passages are reduced in volume to avoid disturbing
desired bank. others, while dialogue remains intelligible.
Tuning Mode: When listening to AM or FM radio, this button toggles Track Skip: These buttons have no effect on the receiver, but are
between manual (one frequency step at a time) and automatic (seeks used with many source components to change tracks or chapters.
frequencies with acceptable signal strength) tuning mode. It also toggles
between stereo and mono modes when an FM station is tuned. Dim: Press this button to partially or fully dim the front-panel display.
When listening to XM Radio, press the Tuning Mode Button once to view Transport Controls: These buttons have no effect on the receiver,
the category name of the current channel. Additional presses will display but are used to control many source components. By default, when the
the artist, song title and channel name. remote is operating the receiver, these buttons will control a DVD player.
Memory: After you have tuned a particular radio station, press this Backlight: Press this button to illuminate the buttons on the remote.
button, then the numeric keys, to save that station as a radio preset. Press it again to turn the backlight off, or wait five seconds after the last
button press for the light to turn off on its own.
For XM Radio, the procedure for saving a preset is a little different. To
save the current channel in one of the 40 available preset locations,

13
Composite
AVR347 S-Video
harman/kardon

CONNECTIONS
There are different types of audio and video connections used to Bare wire cables are installed as follows (see Figure 2):
connect the receiver to the speakers and video display, and to connect
the source devices to the receiver. To make it easier to keep them all 1. Unscrew the terminal cap until the pass-through hole in the collar is
straight, the Consumer Electronics Association (CEA®) has established revealed.
a color-coding standard. Table 1 may be helpful to you as a reference 2. Insert the bare end of the wire into the hole.
while you set up your system. HOW TO USE THE BINDING-POST SPEAKER TERMINAL
3. Hand-tighten the cap LA BORNE DES HAUT-PARLEURSsnugly.
COMMENT UTILISER until the wire is held DE CONNEXION
Table 1 ­ Connection Color Guide CÓMO USAR EL TERMINAL DE ALTAVOZ DE POSTE DE SUJECIÓN

Audio Connections
Left Right
Front (FL/FR)
Center (C)
Surround (SL/SR)
Surround Back (SBL/SBR)
Subwoofer (SUB)
1 2 3
Digital Audio Connections
Figure 2 ­ Binding-Post Speaker Terminals With Bare Wires
Coaxial Always connect colored (+) terminal on AVR to red (+) terminal
Optical Input Output
on speaker; and black (­) to black (­).
Video Connections Subwoofer
Component Y Pb Pr
Branchez toujours la borne (+) colorée sur AVR ŕ la borne (+) rouge sur le haut-parleur;
Composite
S-Video
The noire (­) ŕ la noirea specialized type of loudspeaker that is usually
et la subwoofer is (­).

HDMI Connections (digital audio/video)
TM connected in el terminal de way.(+) en subwoofer is used to play only the
Conecte siempre
a different color The el AVR al terminal rojo (+) en el altavoz;
HDMI lownegro (­) al negro (­). which require much more power than the other
y el frequencies (bass),
speaker channels. In order to obtain the best results, most speaker
Types of Connections manufacturers offer powered subwoofers, in which the speaker contains
its own amplifier on board. Sometimes the subwoofer is connected to
This section will briefly review different types of cables and connections
the receiver using the front left and right speaker outputs, and then the
that you may use to set up your system.
front left and right speakers are connected to terminals on the subwoofer.
Speaker Connections More often, a line-level (nonamplified) connection is made from the
receiver's Subwoofer Output to a corresponding jack on the subwoofer,
Speaker cables carry an amplified signal from the receiver's speaker as shown in Figure 3.
terminals to each loudspeaker. Speaker cables contain two wire conduc-
tors, or leads, inside plastic insulation. The two conductors are usually Although the subwoofer output looks similar to the analog audio jacks
differentiated in some way, by using different colors, or stripes, or even used for the various components, it is filtered and only allows the low
by adding a ridge to the insulation. Sometimes the actual wires are frequencies to pass. Don't connect this output to any other devices.
different, one being copper-colored and the other silver. Although doing so won't cause any harm, performance will suffer.

The differentiation is important because each speaker must be connected
to the receiver's speaker-output terminals using two wires, one positive Preout Subwoofer
(+) and one negative (­), referred to as speaker polarity. It's important
to maintain the proper polarity for all speakers in the system. If some Figure 3 ­ Subwoofer
speakers have their negative terminals connected to the receiver's positive
terminals, performance can suffer, especially for the low frequencies. Connecting Source Devices to the AVR
Always connect the positive terminal on the loudspeaker, which is usually The AVR 347 is designed to process audio and video input signals,
colored red, to the positive terminal on the receiver, which is colored as playing back the audio and displaying the video on a television or
shown in the Connection Color Guide (Table 1). Similarly, always connect monitor connected to the AVR. These signals originate in what are
the black negative terminal on the speaker to the black negative terminal known as "source devices," including your DVD player, CD player, DVR
on the receiver. (digital video recorder) or other recorder, tape deck, game console,
cable or satellite television box or MP3 player. Although the tuner is
The AVR 347 uses binding-post speaker built into the AVR, it also counts as a source, even though no external
terminals that can accept banana plugs connections are needed, other than the FM and AM antennas and the
+ or bare-wire cables. Banana plugs are XM antenna module.
simply plugged into the hole in the middle
of the terminal cap. See Figure 1. Separate connections are required for the audio and video portions of
the signal, except for digital HDMI connections. The types of connections
used depend upon what's available on the source device, and for video
Figure 1 ­ Binding-Post Speaker Terminals With Banana Plugs signals, the capabilities of your video display.



19
14
AVR347 harman/kardon

CONNECTIONS
Audio Connections IMPORTANT NOTE: The AVR 347 cannot convert 1080i or
1080p analog video signals to the HDMI format, and downconverts
There are two formats for audio connections: digital and analog. Digital them to 720p for the Component Video Outputs. This affects users
audio signals are of higher quality, and are required for listening to of Microsoft® Xbox® 360 systems and some older set-top boxes.
sources encoded with digital surround modes, such as Dolby Digital and
DTS. There are three types of digital audio connections: HDMI, coaxial If your digital cable television set-top box outputs 1080i or better
and optical. Any one type of digital audio connection may be used for video via component video outputs and is not equipped with an
each source device, but never more than one for the same source.