Harman Kardon AVR-320 Service manual
harman/kardon
AVR320
A/V DOLBY DIGITAL RECEI VER
SERVICE MANUAL
ESD W A RNING…………………..….……….2
LEAKAGE TESTING………………...……....3
BASIC SPECIFICATIONS……………….…..4
FRONT PANEL CONTROLS………….…….5
REAR PANEL CONNECTIONS……..…..…10
REMOTE CONTROL FUNCTIONS………..1 2
TROUBLESHOOTING GUIDE…...……...…15
PROCESSOR RESET………………...…….15
UNIT EXPLODED VIEW…………..……......16
EXPLODED VIEW PARTS LIST………..….17
BULLETIN H/K2002-03……………….…….19
harman/kardon, Inc.
250 Crossways Park Dr.
CONTENTS
BULLETIN H/K2002-07…………………….20
BULLETIN H/K2003-07…………………….21
TECH TIP HKTT2003-01………...….…..…23
TECH TIP HKTT2004-03………...….…..…24
IDLE CURRENT ADJUSTMENT…………..28
BLOCK DIAGRAM..…………..….…………31
ELECTRICAL PARTS LIST……….……….32
SEMICONDUCTOR PINOUTS……………77
SCHEMATICS………………….…...…..…136
WIRING DIAGRAM………………………..157
PACKAGE………………….……………....158
Woodbury, New York 11797 Rev5 – 6/2005
AVR320
2
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.
harman/kardon
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 :
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.
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
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.
AVR320
3
Before returning the unit to the user, perform the following safety checks :
1. Inspect all lead dress to make certain that
leads are not pinched or that hardware is not
lodged between the chassis and other metal
parts in the unit.
2. Be sure that any protective devices such as
nonmetallic control knobs, insulating fish-
papers, cabinet backs, adjustment and
compartment covers or shields, isolation
harman/kardon
resistor-capacity networks, mechanical
insulators, etc. Which were removed for the
servicing are properly re-installed.
3. Be sure that no shock hazard exists ; check for leakage
current usingSimpson Model 229 Leakage Tester, standard
equipment item No. 21641, RCA Model WT540A or use
alternate method as follows : Plug the power cord directly
Into a 120 volt AC receptacle (do not use an Isolation
Transformer for this test). Using two clip leads, connect a
1500 ohms,10watt Resistor paralleledby a 0.15uFcapacitor,in series withall exposed metalcabinet parts anda known earthground, such
as a water pipe or conduit. Use a VTVM or VOM with 1000 ohms per volt, or higher sensitivity to measure the AC voltage drop across the
resistor. (See diagram) Move the resistor connection to each exposed metal part having a return path to the chassis (antenna, metal,
cabinet, screwheads, knobsand controlshafts, escutcheon, etc.) and measurethe ACvoltage drop across the resistor. (Thistest shouldbe
performed withthe 0.35 volt RMS or more is excessiveand indicates apotential shock hazard which must be corrected beforereturning the
unit to the owner.
4 TECHNICAL SPECIFICATIONS
Technical Specifications
Audio Section
Stereo Mode
Continuous Average Power (FTC)
65 Watts per channel, 20Hz–20kHz,
@ < 0.07% THD, both channels driven into 8 ohms
Five-Channel Surround Modes
Power Per Individual Channel
Front L&R channels:
55 Watts per channel
@ < 0.07% THD, 20Hz–20kHz into 8 ohms
Center channel:
55 Watts @ < 0.07% THD, 20Hz–20kHz into 8 ohms
Surround channels:
55 Watts per channel
@ < 0.07% THD, 20Hz–20kHz into 8 ohms
Input Sensitivity/Impedance
Linear (High-Level) 200mV/47k ohms
Signal-to-Noise Ratio (IHF-A) 95dB
Surround System Adjacent Channel Separation
Analog Decoding 40dB
(Pro Logic II, etc.)
Dolby Digital 55dB
DTS 55dB
Frequency Response
@ 1W (+0dB, –3dB) 10Hz –100kHz
High Instantaneous
Current Capability (HCC) ±35 Amps
Transient Intermodulation
Distortion (TIM) Unmeasurable
Slew Rate 40V/µsec
FM T uner Section
Frequency Range 87.5–108MHz
Usable Sensitivity IHF 1.3 µV/13.2dBf
Signal-to-Noise Ratio Mono/Stereo 70/68dB
Distortion Mono/Stereo 0.2/0.3%
Stereo Separation 40dB @ 1kHz
Selectivity ±400kHz, 70dB
Image Rejection 80dB
IF Rejection 90dB
AM T uner Section
Frequency Range 320–1720kHz
Signal-to-Noise Ratio 45dB
Usable Sensitivity Loop 500µV
Distortion 1kHz, 50% Mod 0.8%
Selectivity ±10kHz, 30dB
Video Section
Television Format NTSC
Input Level/Impedance 1Vp-p/75 ohms
Output Level/Impedance 1Vp-p/75 ohms
Video Frequency Response
(Composite and S) 10Hz–8MHz (–3dB)
Video Frequency Response
(Component) 10Hz–30MHz (–3dB)
General
Power Requirement AC 120V/60Hz
Power Consumption 72W idle, 580W maximum
(2 channels driven)
Dimensions (Max)
Width 17.3 inches (440mm)
Height 6.5 inches (165mm)
Depth 17.1 inches (435mm)
Weight 32 lb (14.5kg)
Depth measurement includes knobs, buttons and terminal connections.
Height measurement includes feet and chassis.
All features and specifications are subject to change without notice.
Harman Kardon is a registered trademark, and Power for the Digital Revolution is a trademark, of
Harman Kardon, Inc.
is a trademark of Harman International Industries, Inc. (Patent No. 5,386,478).
*Manufactured under license from Dolby Laboratories.
“Dolby,”“Pro Logic,” “Pro Logic II” and the Double-D symbol are
trademarks of Dolby Laboratories. Confidential Unpublished
Works. ©1992–1999 Dolby Laboratories, Inc.All rights reserved.
DTS, DTS Surround, DTS-ES and DTS Neo:6 are trademarks of Digital Theater Systems, Inc.
UltraStereo is a trademark of UltraStereo Corp.
VMAx is a registered trademark of Harman International Industries, Inc., and is an
implementation of Cooper Bauck Transaural Stereo under patent license.
Logic 7 is a registered trademark of Lexicon, Inc.
Crystal is a registered trademark of Cirrus Logic Corp.
AVR320
harman/kardon
TM
5 FRONT PANEL CONTROLS
1 Main Power Switch: Press this button to
apply power to the AVR 320. When the switch
is pressed in, the unit is placed in a Standby
mode, as indicated by the amber
Power
Indicator
3 surrounding the System
Power Control
2.This button MUST be
pressed in to operate the unit. To turn the unit
off and prevent the use of the remote control,
this switch should be pressed until it pops out
from the front panel so that the word “OFF”
may be read at the top of the switch.
NOTE:This switch is normally left in the “ON”
position.
2 System Power Control:When the Main
Power Switch
1
is “ON,” press this button
to turn on the AVR 320; press it again to turn
the unit off. Note that the
Power Indicator
3
surrounding the switch will turn green
when the unit is on.
3 Power Indicator:This LED will be lit in
amber when the unit is in the Standby mode to
signal that the unit is ready to be turned on.
When the unit is in operation, the indicator will
turn green.
4 Headphone Jack:This jack may be used to
listen to the AVR 320’s output through a pair of
headphones. Be certain that the headphones
have a standard
1
/4" stereo phone plug. Note
that the main room speakers will automatically
be turned off when the headphone jack is
in use.
5 Dolby Mode Selector: Pressing this selec-
tor button cycles the AVR through the various
Dolby surround modes.The first press of the button switches the surround mode to the last
Dolby surround mode that was in use. Each subsequent press selects the next mode in the following order:
6 DTS Surround Mode Selector: Pressing
this selector button cycles the AVR through the
DTS surround modes.The first press of the button selects the last DTS surround mode that
Front Panel Controls
1 Main Power Switch
2 System Power Control
3 Power Indicator
4 Headphone Jack
5 Dolby Mode Selector
6 DTS Surround Mode Selector
7 Logic 7 Mode Selector /‹ Button
8 Tone Mode
9 Surround Mode Selector
) Tuning Selector
! Tuner Band Selector
@ Set Button
# Preset Station Selector
$ Stereo Mode Selector /› Button
% Input Source Selector
^ FM Mode Selector
& DTS Neo:6 Mode Selector
* Digital Optical 3 Input
( Input/Output Status Indicator
Ó Digital Coax 3 Jack
Ô Video 4 Input Jacks
Bass Control
Ò Balance Control
Ú Treble Control
Û Digital Select Button
Ù Channel Select Button
ı Volume Control
ˆ Input Indicators
˜ Main Information Display
¯ Remote Sensor Window
˘ Surround Mode Indicators
2
4
79
@
˘
Ú
ı
¯
Û
Ù
1
3
5
6
8
)
!
#
$
%
^
&
Ó
*
(
Ô
Ò
˜
ˆ
1 Main Power Switch
2 System Power Control
3 Power Indicator
4 Headphone Jack
5 Dolby Mode Selector
6 DTS Surround Mode Selector
7 Logic 7 Mode Selector /‹ Button
8 Tone Mode
9 Surround Mode Selector
) Tuning Selector
! Tuner Band Selector
@ Set Button
# Preset Station Selector
$ Stereo Mode Selector /› Button
% Input Source Selector
^ FM Mode Selector
& DTS Neo:6 Mode Selector
* Digital Optical 3 Input
( Input/Output Status Indicator
Ó Digital Coax 3 Jack
Ô Video 4 Input Jacks
Bass Control
Ò Balance Control
Ú Treble Control
Û Digital Select Button
Ù Channel Select Button
ı Volume Control
ˆ Input Indicators
˜ Main Information Display
¯ Remote Sensor Window
˘ Surround Mode Indicators
AVR320
harman/kardon
DOLBY PRO LOGIC II
MOVIES
DOLBY
DIGITAL
DOLBY PRO LOGIC II MUSIC
DOLBY PRO LOGIC II
DOLBY 3 STEREO
EMULATION
6 FRONT PANEL CONTROLS
Front Panel Controls
was in use. Each subsequent press selects the
next DTS mode in the following order:
7 Logic 7 Mode Selector /‹ Button:This
button has two functions: In normal use, press
it to select one of the Logic 7 modes.When an
adjustment is being made using the
Channel
Select
Ù or Digital Select Û buttons, this
button may be pressed to scroll through the
available options.
8 Tone Mode: Pressing this button enables
or disables the Bass and Treble tone controls.
When the button is pressed so that the words
TONE IN appear in the
Main Information
Display
˜, the settings of the Bass and
Treble Ú controls may be used to adjust the
output signals.When the button is pressed so
that the words TONE OUT appear in the
Main
Information Display
˜, the output signal
will be “flat,” without any bass or treble alteration, no matter how the actual
Bass and
Treble Controls Ú are adjusted.
9 Surround Mode Selector: Press this but-
ton to change the surround mode by scrolling
through the list of available modes. Note that
depending on the type of input, some modes
are not always available. (See page 26 for more
information about surround modes.)
) Tuning Selector: Press the left side of the
button to tune lower-frequency stations and the
right side of the button to tune higher-frequency
stations.When a station with a strong signal
is reached, the
TUNED Indicator W will be lit
in the
Main Information Display ˜ .
To tune manually, tap the button lightly and
note that the tuner will step up one frequency
increment per button press.When the button is
held for a few seconds you will note that the
unit will quickly search the frequency band.
Release it once the fast tuning starts; the tuner
will automatically scan for the next station with
an acceptable signal and then stop.
! Tuner Band Selector: Pressing this but-
ton will automatically switch the AVR 320 to
the Tuner mode. Pressing it again will switch
between the AM and FM frequency bands. (See
page 31 for more information on the tuner.)
@ Set Button:When making choices during
the setup and configuration process, press this
button to enter the desired setting as shown
in the
Main Information Display ˜ into the
AVR 320’s memory.
# Preset Station Selector: Press this
button to scroll up or down through the list or
stations that have been entered into the preset
memory. (See page 32 for more information on
tuner programming.)
$ Stereo Mode Selector /› Button:
Pressing this selector button cycles through
the stereo modes, and it is also used to turn off
all surround processing and place the unit in a
traditional two-channel Stereo mode.The first
press selects 5-Channel Stereo, the next press
selects 8-Channel Stereo, and the third press
selects “SURROUND OFF,” which is true Stereo.
When an adjustment is being made using the
Channel Select Ù or Digital Select Û
buttons, this button may be pressed to scroll
through the available options.
% Input Source Selector: Press this button
to change the input by scrolling up or down
through the list of input sources.
^ FM Mode Selector:Press this button to
select Auto or Manual tuning.When the button
is pressed so that the
AUTO Indicator X
lights, the tuner will search for the next station
with an acceptable signal when the
Tuning
Selector
)uéis pressed. When the but-
ton is pressed so that the
AUTO Indicator X
is not lit, each press of the Tuning Selector
)uéwill increase the frequency. (See
page 31 for more information on using the
tuner.)
& DTS Neo:6 Mode Selector: Pressing this
selector button cycles the AVR through the various DTS Neo:6 modes, which extract a fivechannel surround field from two-channel program material. The first press selects the last
DTS Neo:6 surround mode that was in use, and
each subsequent press selects the next mode in
the following order:
* Digital Optical 3 Input: Connect the opti-
cal digital output of an audio or video product to
this jack. When the input is not in use, be certain
to keep the plastic cap installed to avoid dust
contamination that might degrade future
performance.
( Input/Output Status Indicator:This LED
indicator will normally light green to show that
the front panel
Digital Coax 3 Ó jack is oper-
ating as an input. When this jack is configured
for use as an output, the indicator will turn red
to show that the jack may be used for recording.
(See page 20 for more information on configuring the front panel jacks as outputs, rather than
inputs.)
Ó Digital Coax 3 Jack:This jack is normally
used for connection to the output of portable
audio devices, video game consoles or other
products that have a coax digital jack. It may
also be configured as an output jack, to feed a
digital signal to a CD-R, MiniDisc or other digital recording device. (See page 20 for information on configuring the Digital Coax 3 Jack as
an output.)
Ô Video 4 Input Jacks: These audio/video
jacks may be used for temporary connection to
video games or portable audio/video products
such as camcorders and portable audio players.
Bass Control:Turn this control to modify
the low-frequency output of the left/right channels by as much as ±10dB. Set this control to a
suitable position for your taste or room acoustics.
Ò Balance Control:Turn this control to
change the relative volume for the front
left/right channels.
NOTE: For proper operation of the surround
modes, this control should be at the midpoint,
or “12 o’clock”, position.
Ú Treble Control: Turn this control to modify
the high-frequency output of the left/right channels by as much as ±10dB. Set this control to a
suitable position for your taste or room acoustics.
Û Digital Select Button:When playing a
source that has a digital output, press this
button to select between the
Optical *
and Coaxial Ó Digital inputs. (See
page 29 for more information on digital audio.)
Ù Channel Select Button: Press this button
to begin the process of trimming the channel
output levels using an external audio source.
(For more information on output level trim
adjustment, see page 32.)
ı Volume Control:Turn this knob clockwise
to increase the volume, counterclockwise to
decrease the volume. If the AVR 320 is muted,
adjusting volume control will automatically
release the unit from the silenced condition.
AVR320
harman/kardon
DTS-ES 6.1 DISCRETE
DTS-ES 6.1 MATRIX DTS 5.1
DTS Neo:6 MUSIC
DTS Neo:6
MOVIES
DTS Neo:6
EMULATION
32
31
7 FRONT PANEL CONTROLS
Front Panel Controls
ˆ Input Indicators: A green LED will light
to the left of the input that is currently the
input source for the AVR 320.
˜ Main Information Display:This display
delivers messages and status indications to
help you operate the receiver. (See pages 8 & 9
for a complete explanation of the Information
Display.)
¯ Remote Sensor Window:The sensor
behind this window receives infrared signals
from the remote control. Aim the remote at this
area and do not block or cover it unless an
external remote sensor is installed.
˘ Surround Mode Indicators: A green LED
will light in front of the surround mode that is
currently in use.
AVR320
harman/kardon
8 FRONT PANEL INFORMATION DISPLAY
Front Panel Information Display
A
B
D
E
N
O
K
M
L
T
U
S
R
P
Z
Y
X
W
V
F
H
I
J
C
G
Q
A Bitstream Indicators
B Optical Source Indicators
C Sample Rate Indicators
D DTS Mode Indicator
E Dolby Digital Indicator
F Coaxial Source Indicators
G Dolby Pro Logic II Indicator
H Analog Input Indicator
I Dolby 3 Stereo Indicator
J Logic 7 Mode Indicators
K 5-Channel/7-Channel Stereo Indicators
L Hall Mode Indicators
M Theater Mode Indicator
N VMAx Mode Indicators
O Multiroom Indicator
P OSD Indicator
Q Speaker/Channel Input Indicators
R Preset Number/Sleep Timer
S Preset Indicator
T Sleep Indicator
U Memory Indicator
V Stereo Indicator
W Tuned Indicator
X Auto Indicator
Y Main Information Display
Z Mute Indicator
A Bitstream Indicators: When the input is a
digital source, one of these indicators will light to
display the specific type of data signal in use.
B Optical Source Indicators:These indicators light to show when an Optical Digital Input
has been selected.
C Sample Rate Indicators: One of these
indicators will light when 96kHz or 192kHz
source material is in use.
D DTS Mode Indicator:This indicator lights
when a DTS-encoded source is playing.
E Dolby Digital Indicator:This indicator
lights when a Dolby Digital source is being
played.
F Coaxial Source Indicators:These indicators light to show when a Coaxial Digital Input
has been selected.
G Dolby Pro Logic II Indicator:This indicator lights when the Dolby Pro Logic II mode has
been selected.
NOTE:
It is possible to see the Dolby Pro Logic II
indicator lit simultaneously with the Dolby
Digital indicator, even though the Dolby Digital
surround mode has been selected. This is due to
the specifications for Dolby Digital processing,
which require that the Dolby Pro Logic II mode
be applied when a 2-channel Dolby signal is
detected. If you desire 5.1-channel audio, check
the audio settings in the menus for your DVD
disc to make sure that a 5.1-channel Dolby
Digital soundtrack has been selected.
H Analog Input Indicator: This indicator
lights when an analog input source has been
selected.
I Dolby 3 Stereo Indicator:This indicator
lights when the Dolby 3 Stereo mode has been
selected.
J Logic 7 Mode Indicators:These indicators light to indicate that one of the Logic 7
modes is in use.Along with the main Logic 7
indicator, either 5.1 or 7.1 will light to indicate
the selected speaker configuration. One of the
three letters to the far right of this segment will
light to show which version of Logic 7 processing is in use: C for the Cinema mode, M for the
Music mode and E for the Enhanced mode used
with two-channel sources.The Enhanced mode
is only available with the 5.1 speaker configuration. (See page 26 for a description of the Logic
7 modes.)
K 5-Channel/7-Channel Stereo
Indicators:
These indicators light to show if
the 5-Channel or 7-Channel Stereo mode has
been selected.
L Hall Mode Indicators:These indicators
light when one of the Hall modes has been
selected.
M Theater Mode Indicator: This indicator
lights to show that the Theater mode is in use.
N VMAx Mode Indicators: One of these
indicators lights when the VMAx mode is in
use.
VMAx F appears when the Far Field
VMAx mode is selected;
VMAx N appears
when the Near Field VMAx mode is selected.
(See page 27 for a description of the VMAx
modes.)
O Multiroom Indicator:This indicator lights
when the multiroom system is active. Note that
it will remain lit when the multiroom system is
in use even though the main room system is in
the Standby mode and all other indicators are
dark. (See page 36 for more information on the
Multiroom system.)
P OSD Indicator:When the OSD system is in
use, this indicator lights to remind you that the
other indicators in this display do not function
when the On-Screen Display is being used.
Q Speaker/Channel Input Indicators:These
indicators are multipurpose, indicating either the
speaker type selected for each channel or the
incoming data-signal configuration.The left,
center, right, right surround and left surround
speaker indicators are composed of three boxes,
while the subwoofer is a single box. The center
box lights when a “Small” speaker is selected,
and the two outer boxes light when “Large”
speakers are selected.When none of the boxes
are lit for the center, surround or subwoofer
channels, no speaker has been selected for one
of those positions. (See page 22 for more infor-
AVR320
harman/kardon
9 FRONT PANEL INFORMATION DISPLAY
Front Panel Information Display
mation on configuring speakers.) The letters inside
each of the center boxes display the active input
channels. For standard analog inputs, only the L
and R will light, indicating a stereo input.When a
digital source is playing, the indicators will light to
display the channels being received at the digital
input. When the letters flash, the digital input has
been interrupted. (See pages 23 & 30 for more
information on the Channel Indicators.)
R Preset Number/Sleep Timer: When the
tuner is in use, these numbers indicate the specific preset memory location in use. (See page 32
for more information on preset stations.) When
the Sleep function is in use, these numbers show
how many minutes remain before the unit goes
into the Standby mode.
S Preset Indicator:This indicator lights when
the tuner is in use to show that the
Preset
Number/Sleep Timer
R is showing the station’s preset memory number. (See page 32 for
more information on tuner presets.)
T Sleep Indicator:This indicator lights when
the Sleep function is in use.The numbers in the
Preset Number/Sleep Timer R indicator will
show the minutes remaining before the AVR 320
goes into the Standby mode. (See page 28 for
more information on the Sleep function.)
U
Memory Indicator: This indicator flashes
when entering presets and other information
into the tuner’s memory.
V Stereo Indicator:This indicator lights when
an FM station is being tuned in stereo.
W
Tuned Indicator:
This indicator lights when a
station is being received with sufficient signal
strength to provide acceptable listening quality.
X Auto Indicator: This indicator lights when
the tuner’s Auto mode is in use.
Y Main Information Display:This display
shows messages relating to the status, input
source, surround mode, tuner, volume level or
other aspects of the AVR 320’s operation.
Z Mute Indicator:This indicator lights to
remind you that the AVR 320’s output has been
silenced by pressing the
Mute Button
˚
.
Press the Mute button again to return to the
previously selected output level.
AVR320
43
harman/kardon
10 REAR PANEL CONNECTIONS
¡ AM Antenna:Connect the AM loop antenna
supplied with the receiver to these terminals. If an
external AM antenna is used, make connections
to the
AM and GND terminals in accordance
with the instructions supplied with the antenna.
™ FM Antenna: Connect the supplied indoor or
an optional external FM antenna to this terminal.
£ Tape Inputs: Connect these jacks to the
PLAY/OUT jacks of an audio recorder.
¢ Tape Outputs: Connect these jacks to the
RECORD/INPUT jacks of an audio recorder.
∞ Subwoofer Output: Connect this jack to
the line-level input of a powered subwoofer. If
an external subwoofer amplifier is used, connect this jack to the subwoofer amplifier input.
§ DVD Audio Inputs: Connect these jacks
to the analog audio jacks on a DVD or other
video source.
¶ CD Inputs: Connect these jacks to the out-
put of a compact disc player or CD changer.
• Multiroom Outputs: Connect these jacks
to an optional audio power amplifier to listen
to the source selected by the mulitroom system
in a remote room.
ª 6-Channel Direct Inputs:When an
optional, external processor or playback device
with 5.1 audio capability is in use, connect the
player's output jacks here.
NOTE:To assist in making the correct connections for multichannel input output and speaker
connections, all connection jacks and terminals
have been color coded in conformance with the
latest CEA standards as follows:
Front Left: White
Front Right: Red
Center: Green
Surround Left: Blue
Surround Right: Gray
Surround Back Left: Brown
Surround Back Right: Tan
Subwoofer: Purple
Digital Audio: Orange
Composite Video: Yellow
Component Video “Y”: Green
Component Video “Pr”: Red
Component Video “Pb”: Blue
‚ 8-Channel Direct Inputs: When an
option, external processor or playback device
with 6.1 or 7. 1 audio capability is in use, connect the Surround Back Left and Surround Back
Right channel outputs of the player to these
input jacks.
⁄ Digital Audio Outputs: Connect these
jacks to the matching digital input connector
on a digital recorder such as a CD-R or
MiniDisc recorder.
Rear Panel Connections
∞
ª
‚
‹
fi
fl
°
·
a
b
c
d
e
f
gi
j
‡
§
31
32
36
h
k
35
34
38
37
33
•
¶
¤
⁄
›
¡
™
£
¢
¡ AM Antenna
™ FM Antenna
£ Tape Inputs
¢ Tape Outputs
∞ Subwoofer Output
§ DVD Audio Inputs
¶ CD Inputs
• Multiroom Outputs
ª 6-Channel Direct Inputs
‚ 8-Channel Direct Inputs
⁄ Digital Audio Outputs
¤ Video Monitor Outputs
‹ DVD Video Inputs
› Front Speaker Outputs
fi Center Speaker Outputs
fl Surround Speaker Outputs
‡ Switched AC Accessory Outlet
° Unswitched AC Accessory Outlet
· AC Power Cord
a Video 2 Component Video Inputs
b Component Video Outputs
c DVD Component Video Inputs
d Remote IR Output
e Remote IR Input
f Multiroom IR Input
g Video 1 Video Outputs
h Video 1 Video Inputs
i Video 2 Video Outputs
j Video 3 Video Inputs
k Video 2 Video Inputs
Optical Digital Inputs
Coaxial Digital Inputs
Video 2 Audio Outputs
Video 2 Audio Inputs
Video 3 Audio Inputs
Video 1 Audio Inputs
Video 1 Audio Outputs
Preamp Outputs
AVR320
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11 REAR PANEL CONNECTIONS
Rear Panel Connections
¤ Video Monitor Outputs: Connect this
jack to the composite or S-Video input of a TV
monitor or video projector to view the on-screen
menus and the output of any standard video
source selected by the receiver’s video switcher.
‹ DVDVideo Inputs: Connect these jacks to
the composite or S-Video output jacks on a
DVD or other video source.
› Front Speaker Outputs: Connect these
outputs to the matching + or – terminals on
your left and right speakers.When making
speaker connections always make certain to
maintain correct polarity by connecting the red
(+) terminals on the AVR 320 to the red (+) terminals on the speakers and the black (–) terminals on the AVR 320 to the black (–) terminals
on the speakers. See page 16 for more information on speaker polarity.
fi Center Speaker Outputs: Connect these
outputs to the matching + and – terminals on
your center channel speaker. In conformance
with the new CEA color code specification, the
Green Terminal is the positive, or "+" terminal
that should be connected to the red (+) terminal on speakers with the older color coding.
Connect the black (–) terminal on the AVR to
the black negative (–) terminal on your speaker.
(See page 16 for more information on speaker
polarity.)
fl Surround Speaker Outputs: Connect
these outputs to the matching + and – terminals on your surround channel speakers. In conformance with the new CEA color code specification, the Blue terminal is the positive, or "+"
terminal that should be connected to the red
(+) terminal on the Surround Left speaker with
older color coding, while the Gray terminal
should be connected to the red (+) terminal on
the Surround Right speaker with the older color
coding. Connect the black (–) terminal on the
AVR to the matching black negative (–) terminals for each surround speaker. (See page 17
for more information on speaker polarity.)
‡ Switched AC Accessory Outlet: This
outlet may be used to power any device you
wish to have turned on when the AVR 320 is
turned on with the
System Power Control
Button
2.
° Unswitched AC Accessory Outlet: This
outlet may be used to power any AC device.
The power will remain on at this outlet regardless of whether the AVR 320 is on or off.
NOTE:The total power consumption of all
devices connected to the accessory outlets
should not exceed 100 watts.
· AC Pow er Cord: Connect the AC plug to
an unswitched AC wall output.
a Video 2 Component Video Inputs:
Connect the Y/Pr/Pb component video outputs
of an HDTV Set-top convertor, satellite receiver,
or other video source device with component
video outputs to these jacks.
b Component Video Outputs: Connect
these outputs to the component video inputs of
a video projector or monitor. When a source
connected to one of the two
Component
Video Inputs
ac is selected the signal will
be sent to these jacks.
c DVD Component Video Inputs: Connect
the Y/Pr/Pb component video outputs of a DVD
player to these jacks.
d Remote IR Output:This connection permits the IR sensor in the receiver to serve other
remote controlled devices. Connect this jack to
the “IR IN” jack on Harman Kardon (or other
compatible) equipment.
e Remote IR Input: If the AVR 320’s front-
panel IR sensor is blocked due to cabinet
doors or other obstructions, an external IR
sensor may be used. Connect the output of
the sensor to this jack.
f Multiroom IR Input:Connect the output of
an IR sensor in a remote room to this jack to
operate the AVR 320’s multiroom control system.
g Video 1 Video Outputs: Connect these
jacks to the
RECORD/INPUT composite or
S-Video jack on a VCR.
h Video 1 Video Inputs: Connect these
jacks to the
PLAY/OUT composite or S-Video
jacks on a VCR or other video source.
i Video 2 Video Outputs: Connect these
jacks to the
RECORD/INPUT composite or
S-Video jacks on a VCR.
j Video 3 Video Inputs: Connect these
jacks to the
PLAY/OUT composite or S-Video
jacks on a VCR or other video source.
k Video 2 Video Inputs: Connect these
jacks to the
PLAY/OUT composite or S-Video
jacks on a VCR or other video source.
Optical Digital Inputs: Connect the opti-
cal digital output from a DVD player, HDTV
receiver, the S/P-DIF output of a compatible
computer sound card playing MP3 files or
streams, LD player or CD player to these jacks.
The signal may be either a Dolby Digital signal,
a DTS signal or a standard PCM digital source.
Coaxial Digital Inputs: Connect the coax
digital output from a DVD player, HDTV receiver,
the S/P-DIF output of a compatible computer
sound card playing MP3 files or streams, LD player
or CD player to these jacks.The signal may be
either a Dolby Digital signal, DTS signal or a standard PCM digital source. Do not connect the RF
digital output of an LD player to these jacks.
Video 2 Audio Outputs:Connect these
jacks to the
RECORD/INPUT audio jacks on a
VCR or other video source.
Video 2 Audio Inputs:Connect these
jacks to the
PLAY/OUT audio jacks on a VCR
or other video source.
Video 3 Audio Inputs:Connect these
jacks to the
PLAY/OUT audio jacks on a VCR
or other video source.
Video 1 Audio Inputs:Connect these
jacks to the
PLAY/OUT audio jacks on a VCR
or other video source.
Video 1 Audio Outputs:Connect these
jacks to the
RECORD/INPUT audio jacks on a
VCR.
Preamp Outputs: These jacks may be
connected to the inputs of an optional, external
power amplifier.
AVR320
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12 MAIN REMOTE CONTROL FUNCTIONS
●
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●
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●
●
a
bc
d
e
g
h
i
j
l
n
o
`
32
30
29
37
36
35
34
33
31
38
x
39
40
41
42
43
44
f
m
k
p
q
n
r
s
t
u
v
w
y
28
z
a Power Off Button
b IR Transmitter Window
c Program/SPL Indicator
d Power On Button
e Input Selectors
f AVR Selector
g AM/FM Tuner Select
h 6-Channel/8-Channel Direct Input
i Test Button
j Sleep Button
k Surround Mode Selector
l Night Mode
m Channel Select Button
n
⁄/¤
Buttons
o‹Button
p Set Button
q Digital Select
r Numeric Keys
s Tuner Mode
t Direct Button
u Tuning Up/Down
v OSD Button
w Dolby Mode Select Button
x DTS Digital Mode Selector
y Logic 7 Mode Select Button
z Skip Down Button
` Transport Controls
28
Skip Up Button
29
Stereo Mode Select Button
30
DTS Neo:6 Mode Select
31
Macro Buttons
32
Disc Skip Button
33
Preset Up/Down
34
Clear Button
35
Memory Button
36
Delay/Prev. Ch.
37
›
Button
38
Speaker Select
39
Multiroom
40
Volume Up/Down
41
SPL Indicator Select
42 Learn Button
43
Mute
44
EzSet Sensor Microphone
NOTE:The function names shown here are each button’s feature when used with the AVR 320. Most buttons
have additional functions when used with other devices.
See pages 42–43 for a list of these functions.
Main Remote Control Functions
AVR320
harman/kardon
13 MAIN REMOTE CONTROL FUNCTIONS
Main Remote Control Functions
IMPORTANT NOTE:The AVR 320’s remote
may be programmed to control up to eight
devices, including the AVR 320. Before using the
remote, it is important to remember to press the
Input Selector Button e that corresponds
to the unit you wish to operate. In addition, the
AVR 320’s remote is shipped from the factory to
operate the AVR 320 and most Harman Kardon
CD or DVD players and cassette decks.The
remote is also capable of operating a wide variety of other products using the control codes
that are part of the remote. Before using the
remote with other products, follow the instructions on pages 37–41 to program the proper
codes for the products in your system.
It is also important to remember that many of
the buttons on the remote take on different
functions, depending on the product selected
using the Device Control Selectors.The descriptions shown here primarily detail the functions
of the remote when it is used to operate the
AVR 320. (See page 39 for information about
alternate functions for the remote’s buttons.)
a Power Off Button: Press this button to
place the AVR 320 or a selected device in the
Standby mode. Note that this will turn off the
main room functions, but if the Multiroom system is activated, it will continue to function.
b IR T ransmitter W indow:Point this window towards the AVR 320 when pressing buttons
on the remote to make certain that infrared commands are properly received.
c Program/SPL Indicator:This three-color
indicator is used to guide you through the
process of programming the remote or learning
commands from a remote into the AVR 320’s
remote code memory and it is also used as a
level indicator when using the remote’s EzSet
capabilities. (See page 24 for more information
on setting output levels, and see page 37 for
information on programming the remote.)
d Power On Button: Press this button to
turn on the power to a device selected by pressing one of the
Input Selectors e.
e Input Selectors: Pressing one of these
buttons will perform three actions at the same
time. First, if the AVR 320 is not turned on, this
will power up the unit. Next, it will select the
source shown on the button as the input to the
AVR 320. Finally, it will change the remote control so that it controls the device selected. After
pressing one of these buttons you must press
the
AVR Selector Button f again to oper-
ate the AVR 320’s functions with the remote.
f AVR Selector: Pressing this button will
switch the remote so that it will operate the
AVR 320’s functions. If the AVR 320 is in the
Standby mode, it will also turn the AVR 320 on.
g AM/FM Tuner Select: Press this button to
select the AVR 320’s tuner as the listening
choice. Pressing this button when the tuner is
already in use will select between the AM and
FM bands.
h 6-Channel/8-Channel Direct Input:
Press this button to select the device connected
to the
6-Channel Direct Inputs ª or the 8-
Channel Direct Inputs
‚. (See page 33 for
more information.)
i Test Button: Press this button to begin
the sequence used to calibrate the AVR 320’s
output levels. (See page 24 for more information
on calibrating the AVR 320.)
j Sleep Button: Press this button to place
the unit in the Sleep mode.After the time
shown in the display, the AVR 320 will automatically go into the Standby mode. Each press
of the button changes the time until turn-off in
the following order:
Note that this button is also used to change
channels on your TV when the TV is selected.
When the AVR 320 remote is being programmed
with the codes to operate another device, this
button is also used in the “Auto Search” process.
(See page 37 for more information on programming the remote.)
k Surround Mode Selector: Press this
button to begin the process of changing the
surround mode.After the button has been
pressed, use the
⁄/¤
Buttons n to select
the desired surround mode. (See page 28 for
more information.) Note that this button is also
used to tune channels when the TV is selected
using the device
Input Selector e.
When the AVR 320 remote is being programmed with the codes of another device, this
button is also used in the “Auto Search”
process. (See page 37 for more information on
programming the remote.)
l Night Mode: Press this button to activate
the Night mode.This mode is available in specially encoded digital sources, and it preserves
dialog (center channel) intelligibility at low
volume levels.
m Channel Select Button:This button is
used to start the process of setting the AVR 320’s
output levels to an external source. Once this but-
ton is pressed, use the
⁄/¤
Buttons n to
select the channel being adjusted, then press the
Set Buttonp, followed by the
⁄/¤
Buttons
n again, to change the level setting. (See page
32 for more information.)
n
⁄/¤
Buttons:These multipurpose but-
tons are used to change or scroll through items
in the on-screen menus, make configuration
settings such as digital inputs or delay timing,
or to select surround modes.When changing a
setting, first press the button for the function or
setting to be changed (e.g., press the
Surround Mode Selector k to select a
soundfield mode or the
Digital Select Button
q to change a digital input) and then press
one of these buttons to scroll through the list
of options or to increase or decrease a setting.
The sections in this manual describing the individual features and functions contain specific
information on using these buttons for each
application.
o
‹
Button:This button is used to change
the menu selection or setting during some of
the setup procedures for the AVR 320.
p Set Button:This button is used to enter
settings into the AVR 320’s memory. It is also
used in the setup procedures for delay time,
speaker configuration and channel output level
adjustment.
q Digital Select: Press this button to assign
one of the digital inputs
*Ó to a
source. (See page 29 for more information on
using digital inputs.)
r Numeric Keys:These buttons serve as a
ten-button numeric keypad to enter tuner preset
positions.They are also used to select channel
numbers when TV, Cable or SAT has been
selected on the remote, or to select track numbers on a CD, DVD or LD player, depending on
how the remote has been programmed.
s Tuner Mode: Press this button when the
tuner is in use to select between automatic
tuning and manual tuning. When the button is
pressed so that the
AUTO Indicator X goes
out, pressing the
Tuning Buttons u)
≠
will move the frequency up or down in singlestep increments.When the FM band is in use,
pressing this button when a station’s signal is
weak will change to monaural reception. (See
page 31 for more information.)
t Direct Button: Press this button when
the tuner is in use to start the sequence for
direct entry of a station’s frequency. After pressing the button, simply press the proper
Numeric Keys r to select a station. (See
page 32 for more information on the tuner.)
AVR320
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min80min70min60min50min
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min
OFF
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u Tuning Up/Down:When the tuner is in
use, these buttons will tune up or down through
the selected frequency band. If the
Tuner Mode
Button
s^ has been pressed so that the
AUTO Indicator X is illuminated, pressing and
holding either of the buttons for three seconds
will cause the tuner to seek the next station with
acceptable signal strength for quality reception.
When the
AUTO Indicator X is NOT illumi-
nated, pressing these buttons will tune stations
in single-step increments. (See page 31 for more
information.)
v OSD Button: Press this button to activate
the On-Screen Display (OSD) system used to set
up or adjust the AVR 320’s parameters.
w Dolby Mode Selector:This button is
used to select from among the available Dolby
Surround processing modes. Each press of this
button will select one of the Dolby Pro Logic II
modes or Dolby 3 Stereo.When a Dolby Digital
encoded source is in use, the Dolby Digital mode
may also be selected. (See page 26 for the available Dolby surround mode options.)
x DTS Digital Mode Selector:When a
DTS-encoded digital source is selected, each
press of this button will scroll thorugh the available DTS modes.The specific choice of modes
will vary according to whether or not the source
material contains DTS-ES 6.1 Discrete encoding.
When a DTS source is not in use, this button has
no function. (See page 40 for the available DTS
Digital options.)
y Logic 7 Selector: Press this button to
select from among the available Logic 7 surround modes. (See page 26 for the available
Logic 7 options.)
z Skip Down Button: This button does not
have a direct function on the AVR 320, but
when used with a compatibly programmed CD
or DVD changer it will change to the previous
disc in the changer or carousel.
` Transport Controls: These buttons do
not have any functions for the AVR 320, but
they may be programmed for the forward/
reverse play operation of a wide variety of CD
or DVD players, and audio or video cassette
recorders. (See page 40 for more information.)
Skip Up Button: This button does not
have a direct function on the AVR 320, but
when used with a compatibly programmed CD
or DVD changer it will change to the previous
disc in the changer or carousel.
Stereo Mode Select Button: Pressing
this button cycles through the stereo modes,
and it is also used to turn off all surround
processing and place the unit in a traditional
two-channel Stereo mode.The first press
selects 5-Channel Stereo, the next press selects
8-Channel Stereo, and the third press selects
“SURROUND OFF,” which is true Stereo.
Macro Buttons: Press these buttons
to store or recall a “Macro”, which is a
preprogrammed sequence of commands
stored in the remote. (See page 38 for more
information on storing and recalling macros.)
DTS Neo:6 Mode Select: Pressing
this button cycles the AVR through the various
DTS Neo:6 modes, which extract a five-channel
surround field from two-channel program
material. The first press selects the last
DTS Neo:6 surround mode that was in use,
and each subsequent press selects one of the
other DTS Neo:6 modes.
Disc Skip Button:This button has no
direct function for the AVR 320 but is most
often used to change to the next disc in a CD
or DVD player when the remote is programmed
for that type of device. (See page 37 for more
information on using the remote with products
other than the AVR 320.)
Preset Up/Down:When the tuner is
in use, press these buttons to scroll through the
stations programmed into the AVR 320’s memory.When some source devices, such as CD
players,VCRs and cassette decks, are selected
using the device
Input Selectors e, these
buttons may function as Chapter Step or Track
Advance.
Clear Button: Press this button to clear
incorrect entries when using the remote to
directly enter a radio station’s frequency.
Memory Button: Press this button to
enter a radio station into the AVR 320’s preset
memory. Once the
MEMORYIndicator U
flashes, you have five seconds to enter a preset
memory location using the
Numeric Keys
r. (See page 31 for more information.)
Delay/Prev Ch.: Press this button to
begin the process for setting the delay times
used by the AVR 320 when processing surround
sound. After pressing this button, the delay
times are entered by pressing the
Set Button
p and then using the
⁄/¤
Buttons n to
change the setting. Press the
Set Button p
again to complete the process. (See page 23 for
more information.)
›
Button: Press this button to change a
setting or selection when configuring many of the
AVR 320’s settings.
Speaker Select: Press this button
to begin the process of configuring the
AVR 320’s bass management system for use
with the type of speakers used in your system.
Once the button has been pressed, use the
⁄/¤
Buttons n to select the channel you
wish to set up. Press the
Set Button p and
then select another channel to configure.
When all adjustments have been completed,
press the
Set Button p twice to exit the
settings and return to normal operation. (See
page 22 for more information.)
Multiroom: Press this button to activate
the multiroom system or to begin the process of
changing the input or volume level for the second zone. (See page 36 for more information on
the Multiroom system.)
Volume Up/Down: Press these buttons
to raise or lower the system volume.
SPL Indicator Select:This button acti-
vates the AVR 320’s EzSet function to quickly
and accurately calibrate the AVR 320’s output
levels. Press and hold the button for three
seconds and then release it. Note that the
test tone will begin circulating, and the
Program/SPL Indicator c will change
colors. During this sequence, EzSet will
automatically adjust the output levels for all
channels until they are equal, as shown by
the
Program/SPL Indicator c lighting
green for each channel. Press this button
again when the adjustment is complete to
turn off the test tone. (See page 24 for more
information on EzSet.)
Learn Button: Press this button to begin
the process of “learning” the codes from another
product’s remote into the AVR 320’s remote. (See
page 37 for more information on using the
remote’s learning function.)
Mute: Press this button to momentarily
silence the AVR 320 or TV set being controlled,
depending on which device has been selected.
When the AVR 320 remote is being programmed
to operate another device, this button is pressed
with the
Input Selector Button e to begin
the programming process. (See page 37 for
more information on programming the remote.)
EzSetSensor Microphone: The sensor
microphone for the EzSet microphone is behind
these slots.When using the remote to calibrate
speaker output levels using EzSet, be sure that
you do not hold the remote in a way that covers these slots. (See page 24 for more information on using EzSet.)
14 MAIN REMOTE CONTROL FUNCTIONS
Main Remote Control Functions
AVR320
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31
32
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37
38
39
40
41
42
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44
SYMPTOM CAUSE SOLUTION
Unit does not function when Main • No AC Power • Make certain AC power cord is plugged into
Power Switch is pushed a live outlet
• Check to see whether outlet is switch-controlled
Display lights, but no sound • Intermittent input connections • Make certain that all input and speaker connections
or picture •
Mute is on are secure
• Volume control is down • Press
Mute button
• Turn up volume control
Unit turns on, but front panel • Display brightness is turned off • Follow the instructions in the Display Brightness section
display does not light up on page 35 so that the display is set to VFD FULL
No sound from any speaker; • Amplifier is in protection mode • Check speaker wire connections for shorts at receiver and
light around power switch is red due to possible short speaker ends
• Amplifier is in protection mode • Contact your local Harman Kardon service depot
due to internal problems
No sound from surround or • Incorrect surround mode • Select a mode other than Stereo
center speakers • Input is monaural • There is no surround information from mono sources
• Incorrect configuration • Check speaker mode configuration
• Stereo or Mono program material • The surround decoder may not create center- or rear-channel
information from nonencoded programs
Unit does not respond to • Weak batteries in remote • Change remote batteries
remote commands • Wrong device selected • Press the AVR selector
• Remote sensor is obscured • Make certain front panel sensor is visible to remote
or connect remote sensor
Intermittent buzzing in tuner • Local interference • Move unit or antenna away from computers, fluorescent
lights, motors or other electrical appliances
Letters flash in the channel indicator • Digital audio feed paused • Resume play for DVD
display and digital audio stops • Check that Digital Input is selected
Processor Reset
In the rare case where the unit’s operation or
the displays seem abnormal, the cause may
involve the erratic operation of the system’s
memory or microprocessor.
To correct this problem, first unplug the unit
from the AC wall outlet and wait at least three
minutes. After the pause, reconnect the AC
power cord and check the unit’s operation. If
the system still malfunctions, a system reset
may clear the problem.
To clear the AVR 320’s entire system memory
including tuner presets, output level settings,
delay times and speaker configuration data,
first put the unit in Standby by pressing the
System Power Control Button 2. Next,
press and hold the
Tone Mode 8 and the
FM Mode Selector ^ buttons for three
seconds.
The unit will turn on automatically and display
the
RESET message in the Main
Information Display
Y. Note that once you
have cleared the memory in this manner, it is
necessary to reestablish all system configuration
settings and tuner presets.
NOTE: Resetting the processor will erase any
configuration settings you have made for
speakers, output levels, surround modes, digital
input assignments as well as the tuner presets.
After a reset the unit will be returned to the
factory presets, and all settings for these items
must be reentered.
If the system is still operating incorrectly, there
may have been an electronic discharge or
severe AC line interference that has corrupted
the memory or microprocessor.
If these steps do not solve the problem, consult
an authorized Harman Kardon service center.
15 TROUBLESHOOTING GUIDE
Troubleshooting Guide
AVR320
harman/kardon
AVR320
16
harman/kardon
44
45
46
37
47
48
49
50
51
52
78
11
10
38
52
55
42
54
40
41
42
1
43
36
35
34
33
2
3
4
5
6
7
8
9
30
29
28
27
32
31
26
56
57
77
58
61
62
63
64
59
65
66
19
67
68
69
70
71
67
76
72
73
12
13
14
15
16
17
18
19
20
21
22
23
24
25
23
24
75
AVR320
MODEL
SCALE
TOLER ANC E
LES S; ±
NONE
SCALE
LES S; ±
LES S; ±
UNIT
m/m
LES S; ±
PARTS
EXPLODED VIEW
NAME
PARTS
NO.
DWG.
NO.
74
17
J85000017200
55199320XX
STAND-BY TRANSFORMER 120V
55201700XX
AVR320 harman/kardon
18
AVR320
19
harman/kardon
harman/kardon
Service bulletin # H/K2002-03 April 2002 Warranty labor rate: MINOR repair
To: All harman/kardon Service Centers
Model: AVR320
Subject: Transformer Hum or Buzz
In the event you receive an AVR320 with the complaint "There is a hum or buzz sound coming from the
unit", first confirm the sound is coming from the receiver itself and
replace the Power Transformer:
1) Remove the top cover (14 Phillips screws)
2) Locate the Power Transformer; it is attached with (4) Phillips screws.
3) All connectors terminating the cable harness consisting of multiple conductors need to be unplugged from
two main locations. Remove all plastic ties necessary to remove the harness. Most connectors have
"tabs" on one side that should be depressed before the connector can be unplugged.
Service Bulletin
not at the loudspeaker output, then
4) Remove and replace the Power Transformer with h/k part# 55199320XX.
5) Replace the harness, add new cable ties, plug in all connectors, (replace Component Video PCB if it was
removed): replace the top cover.
6) Test the unit and confirm the hum or buzz is no longer present.
Model
AVR320
AVR320
AVR320
Serial Number (120v)
TH0044-01000
to
TH0044-03854
TH0044-03855
To
TH0044-08419
TH0044-08420 and above
Hum or Buzz from Power
Status Action
Transformer
Replace Power Transformer
None Required
None Required
AVR320
20
harman/kardon
harman/kardon
Service bulletin # H/K2002-07 October 2002 Warranty labor rate: MINOR repair
To: All harman/kardon Service Centers
Model: AVR320
Subject: Intermittent Output
In the event you receive an AVR320 receiver with the complaint “There is intermittent output from the
receiver”, follow the instructions below:
All sources, all modes may be affected, using any audio connections; unit may also not turn off with the system
power control.
1) Turn the unit on it’s side so the bottom panel faces you, and the access cover (grille) is at the top. Remove
the (9) Phillips screws holding the access cover on; one “foot” will come off with the cover.
2) Locate and inspect all soldered connections on the Main PCB, particularly in the area of connector CN411
and CN410, the 15 pin horizontal foil patterns (see illustration).
3) Repair as needed with solder or buss wire.
4) Test the unit, replace the access cover (grille).
Service Bulletin
MODEL
AVR320
SERIAL NUMBER
120V
All serial numbers
affected
STATUS
Connections may need
repair or re-soldering
ACTION
Check for broken connections and sufficient solder
on Main PCB
AVR320
harman/kardon Service Bulletin
Service bulletin # H/K2003-07 Sept. 2003
To: All harman/kardon Service Centers
Model: AVR110/210/310/510, AVR120/220; AVR320/520
Subject: Various Complaints
For C omplaints:
NO AUDIO
NOISE
INTERMITTENT NOISE
INTERMITENT AUDIO
Possible Solution:
Voltages may be too high on DSP Buffer IC or DSP IC
All modifications are done to the DSP board.
AVR110/210/310/510
AVR120/220
Remove BD5 and replace with two 1N4148 diodes in series.
Remove R43 and R90 (3.3Ω) and replace each with a 1N4148 diode.
(See diagram Page 2 for location and polarity)
AVR320/520
Remove BD25 and replace with two 1N4148 diodes in series.
(See diagram Page 2 for location and polarity)
In all cases the 1N4148 diode(s) you need to add should be normal 2-lead axial components, like h/k
part# 13-0482 or equivalent (not SMD devices).
Warranty labor rate: MINOR repair
21
harman/kardon
AVR320
MODELS: AVR110/210/310/510
AVR120/220
harman/kardon
MODELS: AVR320/520
22
AVR320 harman/kardon
23
harman/kardon TECH TIPS
Troubleshooting tips and solutions to common service problems
For models:
AVR7000/7200/7300/8000
AVR100/200/300/500
AVR110/210/310/510
AVR120/220/320/520
AVR125/225/325/525
AVR130/230/330/430/630
AVR135/235/335/435/635
AVR10
DPR1001
DPR1005
DPR2005
HK3370/3470/3375/3475
HK3250
Subject: Backup Memory on AVR/DPR/HK series receivers
In the event of the complaint: “the receiver is losing its memory (any programmed system set t in gs)
when the unit is turned off, or after the unit is unplugged (briefly*)”:
Check and replace:
Model Designator Location Description Part number
AVR10
AVR7000 C730 Front PCB 0.047 Farad 5.5v capacitor
AVR7200 C106 Front PCB 0.047 Farad 5.5v capacitor # P10790-ND
AVR7300 C657 DSP PCB 0.047 Farad 5.5v capacitor # H01-CEZXA0479MN-5
AVR8000 C726 Front PCB 0.047 Farad 5.5v capacitor
AVR100/200 C412 Front PCB 0.047 Farad 5.5v capacitor # CEGT-B473J-0J0
AVR300 C906 Front PCB 0.1Farad 5.5v capacitor
AVR500 C906 Front PCB 0.1Farad 5.5v capacitor
AVR110/210/310/510
AVR120/220/320/520
AVR125/225 C734,C885 Front PCB two 0.1F capacitors in parallel # BCESOHD104
AVR325/525 C106 Front PCB 0.047 Farad 5.5v capacitor # P10790-ND
AVR130/230/330 BAT1 Front PCB 3.6v Battery # HABGP40BVH3A3H
AVR135/235/335 BAT1 Front PCB 3.6v Battery # HGP15BNH3A3H
AVR430/630 C657 DSP PCB 0.047 Farad 5.5v capacitor # CEZXA0479MN-5
AVR435/635 C557 DSP PCB 0.047 Farad 5.5v capacitor # H03-CEZXA0479MN-0
DPR1001 BC601 Main PCB 0.1Farad 5.5v capacitor # CEGT-B104J-0J0
DPR1005/2005 C437
HK3370/3470 C301 Front PCB 0.1Farad 5.5v capacitor # CEGT-B104J-0J0
HK3375/3475 C301 Front PCB 0.1Farad 5.5v capacitor # CEGT-B104J-0J0
HK3250
* After approximately two weeks of being disconnected from A C supply, even a normally functioning receiver m ay
lose any program med settings and switch t o default settings. (Four weeks f or the DPR1005 & 2005)
C712
D709
C216 Front PCB 0.047 Farad 5.5v capacitor # P10790-ND
C712
D709
Front PCB
Processor
PCB
Front PCB
0.047 Farad 5.5v capacitor
and 1N4148 diode
0.047 Farad 5.5v capacitor # CEZXA0479MN-5
0.047 Farad 5.5v capacitor
and 1N4148 diode
TIP# HKTT2003-01 Rev5
#3439247315
#2058322101
# P10790-ND or
# J3432147324X
# 55230310NR or
# P10790-ND
# J4433210421X
or # P10791-ND
# J4433210421X
or # P10791-ND
#3439247315
#2058322101
AVR320 harman/kardon
24
harman/kardon TECH TIPS
Troubleshooting tips and solutions to common service problems
TIP# HKTT2004-03
Isolating audio problems in an AVR receiver
Using 6/8 Direct In
The following charts are used to help the tech quickly isolate
audio problems in an AVR receiver. Use the following
procedures to help find what is working, then to quickly locate
the problem area.
Equipment needed:
9 1 set of (RCA) Y adaptors.
9 Function/signal generator.
9 Oscilloscope.
Procedure:
1) Do a factory reset of the receiver. (This will eliminate any common micro processor
problems.) Reset List can be found in this service manual.
2) Print the block diagram from the service manual.
3) With no inputs or speakers attached to the AVR turn on the receiver and turn the
volume all the way down.
4) Turn unit off.
5) Hook up an oscillator to the 6/8 Direct in jacks using the Y adaptors. Adjust the
oscillator to about 0db (.775Volts RMS).
6) Hook up an oscilloscope to monitor the line out jacks. Or, if there are no line out
(preamp out) jacks monitor the input to the power amps or the speaker outs.
(AVR125, 225, 130 do not have preamp out jacks)
7) Turn the AVR on. Select 6 or 8 direct in, depending on the receiver.
8) Slowly turn the volume control up until you can easily measure the voltage at the line
out jacks. ( -40 to -25db )
Models covered:
AVR210 AVR310
AVR220 AVR320
AVR520 AVR225
AVR125 AVR525
AVR130 AVR230
AVR330 AVR430
AVR630
Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797
Email Techsupport@harman.com
AVR320 harman/kardon
25
Isolating audio problems in an AVR receiver
Using 6/8 Direct In
9) At this point you will be able to check and assure all output levels are the same.
10) IF THE OUTPUT LEVELS ARE NOT THE SAME
you will need to use the charts to see where you are losing your signal. The chart
shows the analog signal flow from the input jacks to the output jacks.
11) If the output levels are the same check the power out stage at the speaker out jacks.
12) If you find the levels at the speaker out jacks are OK, your problem will be in the DSP
part of the receiver.
Congratulations! You have now eliminated 90% of the electronics in the AVR and
confirmed that the problem is in the DSP section.
STOP! Go no further. At this point
Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797
Email Techsupport@harman.com
AVR320 harman/kardon
26
Isolating audio problems in an AVR receiver
Using 6/8 Direct In
AVR,210,310,510
t
u
n
I
N
I
CH
6
FR 3 1 15 2 4 8 9 4 3 19 17 3 1 3
FL 5 7 13 27 25 21 20 25 26 10 12 5 7 1
SR 11 5 7 7 6 5 7 9
SL 9 24 22 22 23 3 1 7
C 5 21 19 19 20 3 1 5
SW 7 8 10 10 9 5 7 11
C
I
O
1
1
0
5
08
0
4
5
N
C
I
C
C
I
t
u
n
I
O
4
4
0
0
7
C7
C7
I
I
t
u
n
I
O
5
5
0
0
C7
C7
I
I
t
u
O
n
I
6
6
0
0
7
7
C
C
I
I
AVR220
t
u
n
O
I
N
I
CH
6
FR 5 7 15 2 4 8 9 4 3 5 7 10 12 5 7 1
FL 3 1 13 27 25 21 20 25 26 3 1 19 17 3 1 3
SR 11 5 7 7 6 5 7 9
SL 9 24 22 22 23 3 1 7
C 5 21 19 19 20 3 1 5
SW 7 8 10 10 9 5 7 11
1
0
5
C
I
8
1
0
0
4
5
C
C
CN
I
I
t
u
n
I
O
4
4
0
0
7
C7
C7
I
I
t
u
n
I
O
5
5
0
0
C7
C7
I
I
t
u
O
n
I
6
6
0
0
7
C
C7
I
I
t
u
n
O
I
5
5
0
0
7
7
C
C
I
I
t
u
n
I
O
4
4
1
1
7
C
C7
I
I
t
u
n
I
O
6
6
1
1
7
C7
C
I
I
t
u
n
O
I
5
5
0
0
7
7
C
C
I
I
t
u
n
I
O
7
7
1
1
7
7
C
C
I
I
t
u
n
I
O
6
6
1
1
7
C7
C
I
I
t
u
n
I
O
8
1
I
n
I
7
1
I
5
8
0
1
4
7
P
C
C
t
u
O
7
1
7
7
C
C
I
t
u
n
I
O
8
1
C
I
5
8
0
1
4
7
CP
AVR320/520
t
u
n
O
I
C
I
CN4
1
0
5
8
1
I
CP
8
1
0
0
4
5
C
C
CN
I
n
I
2
1
0
0
1
C1
C1
I
I
N
I
CH
8
FR 5 7 15 2 4 8 9 4 3 5 7 10 12 5 7 1
FL 3 1 13 27 25 21 20 25 26 3 1 19 17 3 1 3
SR 11 5 7 7 6 5 7 9
SL 9 24 22 22 23 3 1 7
C 5 21 19 19 20 3 1 5
SW 7 8 10 10 9 5 7 11
SBR 3 3 3 4 21 23 5 7
SBL 1 1 25 26 4 2 3 1
t
u
n
I
O
4
4
0
0
7
C7
C7
I
I
t
u
n
I
O
1
2
0
0
1
C1
c
i
I
t
u
n
I
O
5
5
0
0
C7
C7
I
I
UT
N
i
o
2
3
0
0
0
1
1
c
c
i
i
t
u
O
n
I
6
6
0
0
7
C
C7
I
I
t
u
O
3
t
u
n
I
O
4
4
1
1
7
C
C7
I
I
t
u
n
O
I
5
5
0
0
7
C
C
I
I
t
u
n
I
O
6
6
1
1
7
7
C7
C
I
I
t
u
n
I
7
1
C
I
n
O
I
7
1
7
C
I
O
8
8
1
1
7
7
C
I
AVR225/125
t
t
u
u
N
I
CH
6
L ch 27 25 19 20 5 7 1 3 1 9 10 1 2
R ch 24 22 22 23 3 1 3 5 7 15 14 4 5
SL 5476 57 9
SR 2 4 10 9 3 1 11
C 81843 31 7
SW 21 19 25 26 5 7 5
n
I
0
3
C
I
n
O
I
0
3
C
I
O
1
1
3
3
C
C
C
I
I
I
t
u
n
I
O
2
2
3
3
C
C
I
I
t
u
n
I
O
3
3
3
3
C
C
I
I
t
u
n
O
I
4
3
2
4
3
N1
C
I
C
I
B
t
u
n
O
I
1
1
8
8
C
C
I
I
t
u
n
I
O
0
0
8
8
N1
C
I
B
t
u
n
O
I
6
6
N1
B
t
u
5
0
4
CP
Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797
Email techsupport@harman.com
AVR320 harman/kardon
27
Isolating audio problems in an AVR receiver
Using 6/8 Direct In
AVR 525
t
t
k
c
a
J
n
I
FL 11 109 423 135 3 1 1 1
FR 3 3 21 22 21 23 5 7 28 6 6 7 3 3
SL 5524 43 3 1 5 5
SR 7 7 29 27 25 26 5 7 7 7
CTR 9957 76 3 1 9 9
SW 11 11 26 24 22 23 5 7 11 11
SBL 13 13 8 10 10 9 3 1 13 13
SBR 15 15 23 21 19 20 6 7 15 15
4
0
6
N4
P
u
n
I
O
C5
C5
I
I
t
u
n
O
I
C3
C3
I
I
u
n
n
O
I
9
C1
I
I
8
9
C1
C1
I
C2
I
I
t
u
n
I
O
0
n
I
0
C3
C2
I
C3
I
I
t
u
t
u
O
O
8
C2
C1
I
I
t
u
n
I
O
3
3
C2
C2
I
I
AVR130
t
n
i
h
c
6
L18172123 1
R191242 14
SL 24 22 21 23 9
SR 57 42 7
C27252123 5
SUB 2 4 4 2 3
SBL 21 19 21 23 5 7 13
SBR 8 10 4 2 3 1 11
n
I
3
2
C
I
I
n
I
u
u
O
O
6
2
3
6
2
2
C
I
C
C
I
t
t
n
u
I
O
2
4
2
C
I
C4
I
t
n
I
u
O
4
4
4
4
C
I
C
I
C
I
t
n
I
u
O
3
4
3
4
C
I
t
n
u
I
O
0
4
0
C
I
C4
I
t
n
I
9
4
C
I
C4
I
2
u
O
9
1
1
N1
N
B
B
t
u
n
O
I
5
5
C2
C2
I
I
t
u
n
I
O
4
4
C2
C2
I
I
t
u
n
I
O
6
6
C2
I
6
0
9
P
N8
AVR230/330
t
n
i
h
c
6
L18172123 1
R191242 14
SL 24 22 21 23 9
SR 57 42 7
C27252123 5
SUB 2 4 4 2 3
SBL 21 19 21 23 5 7 13
SBR 8 10 4 2 3 1 11
n
I
3
2
C
I
I
n
I
u
u
O
O
6
2
3
6
2
2
C
I
C
C
I
t
t
n
u
I
O
2
4
2
C
I
C4
I
t
n
I
u
O
4
4
4
4
C
I
C
I
C
I
t
n
I
u
O
3
4
3
4
C
I
t
n
u
I
O
0
4
0
C
I
C4
I
t
n
I
9
4
C
I
C4
I
2
u
O
9
1
1
N1
N
B
B
AVR630/430
t
n
I
CH
8
FL 11012109316931423131
FR 319171920 5 72320 5 7 2123 5 7 26 7
SL 52443 31
SR 727252526 5 7
CTR 95776 3 1
SW 11 24 22 22 23 5 7
SBL 13 8 10 10 9 3 1
SBR 15 21 19 19 20 5 7
4
0
N4
4
0
N4
u
O
3
3
C
C
C
I
I
I
t
u
n
I
O
5
5
C1
C
C
I
I
I
t
u
n
I
O
4
4
1
1
C
C
I
I
t
u
n
O
I
9
9
1
C
C
I
I
t
u
n
O
I
2
2
1
1
C
I
u
n
O
I
5
5
2
2
C
I
t
u
n
I
O
3
3
C
I
t
C
I
C
C
I
I
t
u
n
I
O
4
4
2
2
C
C
I
I
t
u
n
I
O
7
7
2
2
C
C
I
I
t
u
n
O
I
6
6
2
2
C
I
t
u
n
O
I
8
8
1
1
C
C
I
I
t
u
n
I
O
0
0
2
2
C
C
I
I
t
u
n
I
O
3
3
C
I
Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797
Email techsupport@harman.com
AVR320
28
Idle Adustment Procedure
1. MAIN B'D
Turn POWER ON and wait 10 minutes, set controls VR401,VR402,VR501
in order to make voltages on both ends of WA401,WA402,WA403
20mV. See locations below
harman/kardon
AVR320
29
harman/kardon
2. SURROUND B'D
Turn POWER ON and wait 10 minutes, set controls VR601,VR602
in order to make voltages on both ends of WA601,WA602
20mV. See locations below
AVR320
30
harman/kardon
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