BASIC SPECIFICATIONS…………….….…..4
FRONT PANEL CONTROLS………………...5
FRONT PANEL DISPLAY…………………….7
REAR PANEL CONNECTIONS……..….……8
REMOTE CONTROL FUNCTIONS……..…. .11
INSTALLATION AND CONNECTIONS….....14
TROUBLESHOOTING GUIDE.................... 17
PROCESSOR RESET…………………….....17
SERVICE BULLETIN # H/K2003-05………..18
SERVICE BULLETIN # H/K2004-04………..19
harman/kardon, Inc.
250 Crossways Park Dr.
CONTENTS
TECH TIP HKTT2003-01………………….22
EXPLODED VIEW………….……..……….23
EXPLODED VIEW PARTS LIST………….24
AMPLIFIER BIAS ADJUSTMENT……...…27
BLOCK DIAGRAM………………………….31
ELECTRICAL PARTS LIST………..…..….32
PCB DRAWINGS………………….…….…83
SEMICONDUCTOR PINOUTS……..…….95
SCHEMATICS…………………………..…156
WIRING DIAGRAM..…………….. …...….175
PACKAGE………………………………….176
Woodbury, New York 11797 Rev39/2006
Each precautionin thismanual shouldbe followedduring servicing.
Components identified with the IEC symbolin 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.
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.
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.
CAUTION :
AVR325 harman/kardon
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 theunit.
2. Be sure that any protective devices such as
nonmetallic control knobs, insulating fish-
papers, cabinet backs, adjustment and
compartment covers or shields, isolation
resistor-capacity networks, mechanical
insulators, etc. Which were removed for the
servicing are properly re-installed.
Before returning the unit to the user, perform the following safety checks :
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 metal cabinet parts and a knownearth ground, 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 measure the ACvoltage dropacross theresistor.(This testshould be
performed withthe 0.35 voltRMS or more is excessive and indicates a potential shock hazard which must be corrected before returning the
unit to theowner.
AVR325 harman/kardon
4
AVR 325 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
Seven-Channel Surround Modes
Power per Individual Channel
Front L&R channels:
50 Watts per channel
@ <0.07% THD,20Hz–20kHz into 8 ohms
Center channel:
50 Watts @ <0.07% THD, 20Hz–20kHz into 8 ohms
Surround (L & R Side,L & R back) channels:
50 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
Pro Logic I/II 40dB
Dolby Digital (AC-3)55dB
DTS55dB
Frequency Response
@ 1W (+0dB,–3dB)10Hz – 100kHz
High Instantaneous
Current Capability (HCC)±35 Amps
Transient Intermodulation
Distortion (TIM)Unmeasurable
Slew Rate40V/µsec
FM Tuner Section
Frequency Range87.5 –108.0MHz
Usable SensitivityIHF 1.3µV/ 13.2dBf
Signal-to-Noise RatioMono/Stereo 70/68dB
DistortionMono/Stereo 0.2/0.3%
Stereo Separation40dB @ 1kHz
Selectivity±400kHz, 70dB
Image Rejection80dB
IF Rejection90dB
AM Tuner Section
Frequency Range325–1710 kHz
Signal-to-Noise Ratio45dB
Usable SensitivityLoop 500 µV
Distortion1kHz, 50% Mod 0.8%
Selectivity±10kHz, 30dB
Video Section
Television FormatNTSC
Input Level/Impedance1Vp-p /75 ohms
Output Level/Impedance1Vp-p /75 ohms
Video Frequency Response
(Composite and S-Video)10Hz–8MHz (–3dB)
Video Frequency Response
(Component Video) 10Hz–50MHz (–3dB)
General
Power RequirementAC 120V/60Hz
Power Consumption118W idle,890W maximum
(7 channels driven)
Dimensions Width17.3 inches (440mm)
Height6.5 inches (165mm)
Depth17.1 inches (435mm)
Weight40 lb (18.1kg)
Depth measurement includes knobs,buttons and ter minal connections.
Height measurement includes feet and chassis.
All features and specifications are subject to change without notice.
Harman Kardon and Power for the Digital Revolution are registered trademarks of
Harman International Industries,Incorporated.
is a trademark of Harman International Industries,Incorporated (patent no.5,386,478).
*Manufactured under license from Dolby Laboratories.“Dolby,”“Pro Logic,”“Pro Logic II” and the
DTS,DTS Surround, DTS-ES and DTS Neo:6 are registered trademarks of Digital Theater Systems,Inc.
UltraStereo is a trademark of UltraStereo Corp.
VMAx is a registered trademark of Harman International Industries,Incorporated, and is an
implementation of Cooper Bauck Transaural Stereo under patent license.
Logic 7 is a registered trademark of Harman International Industries,Incorporated.
A-BUS and A-BUS Ready are registered trademarks of LeisureTech Electronics Pty Ltd Australia.
AVR325 harman/kardon
4
TM
FRONT-PANEL CONTROLS
1 Main Power Switch: Press this button to apply
power to the AVR 325.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 nor mally left in the “ON” position.
2 System Power Control: When the Main Power
Switch
1
is “ON,”press this button to tur n on the
AVR 325;press it again to turn the unit off.Note that
the
Power Indicator3surrounding 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 tur n green.
4 Headphone Jack: This jack may be used to listen
to the AVR 325’s output through a pair of headphones.
Be certain that the headphones have a standard
1
/4"
stereo phone plug.The main room speakers will
automatically be turned off when the headphone jack
is in use.
5 Tone Mode: This button controls the tone control
settings,enabling adjustment of the bass and treble
boost/cut or the removal of the tone controls from the
signal path.The first press of the button displays a
TONE IN message in the Main Information
Display
˜.
If you wish to set the tone controls to “flat,”
without any treble or bass alteration, press the
‹
or
›
Selector Buttons )# so that TONE OUT
appears in the Lower Display Line B.
6 Speaker Selector: Press this button to begin the
process of configuring the AVR 325 for the type of
speakers it is being used with. For information on configuring the speaker settings,see page 21.
7 Surround Mode Group Selector: Press this but-
ton to select the top-level group of surround modes.
Each press of the button will select a major mode
grouping in the following order:
Once the button is pressed so that the name of the
desired surround mode group appears in the onscreen display and in the
Lower Display Line B,
press the
Surround Mode Selector 8 to cycle
through the individual modes available.For example,
1 Main Power Switch
2 System Power Control
3 Power Indicator
4 Headphone Jack
5 Tone Mode
6 Speaker Selector
7 Surround Mode Group Selector
8 Surround Mode Selector
9 Tuning Selector
)
‹
Button
! Tuner Band Selector
@ Set Button
#
›
Button
$ Preset Station Selector
% Input Source Selector
^ TunerMode Selector
& Optical 3 Digital Input
* Coaxial 3 Digital Input
( Video 4 Video Input Jacks
Ó Video 4 Audio Input Jacks
Ô Bass Control
Balance Control
Ò Treble Control
Ú Channel Adjust Selector
Û Delay Adjust Selector
Ù Digital Input Selector
ı Volume Control
ˆ Input Indicators
˜ Main Information Display
¯ Remote Sensor Window
˘ Surround Mode Indicators
2
4
5
6
7
9
!
@
#
%
&
Ó
Ô
25
1
3
8)$
^
Ú
˘
˜
ˆ
¯
Ò
26
ı
AVR 325
*
(
ready
LOGIC 7
VMAx
FRONT-PANEL CONTROLS
55
AVR325 harman/kardon
5
Dolby Modes _ DTS Digital Modes _ VMAx Modes
_
DSP Modes _ Stereo Modes _ Logic 7 Modes
press this button to select Dolby modes,and then
press the
Surround Mode Selector 8 to choose
from the various mode options.
8 Surround Mode Selector: Press this button
to select from among the available surround mode
options for the major mode group selected.The
specific modes will vary based on the number of
speakers available,the major mode group and
whether the input source is digital or analog.For
example,press the
Surround Mode Group Selector
7 to select a major mode grouping such as Dolby or
Logic 7, and then press this button to see the specific
mode choices that are available.For more information
on mode selection, see page 26.
9 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
I will be lit in the Main Information
Display
˜.
)‹Button: When making system configuration
changes using the front-panel controls,press this button to scroll left through the available choices for the
option being adjusted.
! Tuner Band Selector: Pressing this button will
automatically switch the AVR325 to the Tuner mode.
Pressing it again will switch between the AM and FM
frequency bands.(See page 30 for more information
on the tuner.)
@ Set Button: When making system configuration
changes using the front-panel controls,press this button to enter a setting into the unit’s memory.
# › Button: When making system configuration
changes using the front-panel controls,press this button to scroll right through the available choices for the
option being adjusted.
$ Preset Sta tion Selector: Press this button to
scroll up or down through the list of stations that have
been entered into the preset memory.(See pages 30
and 31 for more information on tuner programming.)
% Input Source Selector: Press this button to
change the input by scrolling up or down through the
list of input sources.
^ Tuner Mode Selector: Press this button to select
Auto or Manual tuning.When the button is pressed so
that the
AUTO Indicator J lights,the tuner will search
for the next station with an acceptable signal when the
Tuning Selector 9uéis pressed.When the
button is pressed so that the
AUTO Indicator J is not
lit, each press of the
Tuning Selector 9uéwill
increase the frequency.(See page 30 for more information on using the tuner.) This button may also be used
to switch between Stereo and Mono modes for FM
radio reception.When weak reception is encountered,
press the button until the
Stereo Indicator H goes
out to switch to Mono reception. Press and hold again
to switch back to Stereo mode.(See page 30 for more
information on using the tuner.)
& Optical 3 Digital Input: Connect the optical digital
output of an audio or video product to this jack.
* Coaxial 3 Digital Input: Connect the coaxial dig-
ital input of a digital audio product such as a portable
audio player or video game to this jack.
( Video 4 Video Input Jacks: These jacks may be
used to connect the video play/out jacks of a video
game or portable video product such as a camcorder,
video game or digital still camera to your system.
Ó Video 4 Audio Input Jacks: These audio/video
jacks may be used for connection to the audio play/out
jacks of a video game or portable audio/video product
such as a camcorder or portable audio player.
Ô Bass Control: Use this control to boost or reduce
the low-frequency output of the left/right front channels by as much as ±10dB.Set this control as you
find suitable to adjust to your specific taste or room
acoustics.
Balance Control: Use this control to change the
relative volume for the front left/right channels.
NOTE: When multichannel surround modes are in use,
this control should be at the midpoint, or “12 o’clock,”
position for proper operation.
Ò Treble Control: Use this control to boost or
reduce the high-frequency output of the left/right front
channels by as much as ±10dB.Set this control as
you find suitable to adjust to your specific taste or
room acoustics.
Ú Channel Adjust Selector: Press the button to
begin the process of adjusting the channel level outputs using the source currently playing through your
AVR.For complete information on adjusting the channel output level, see page 31.
Û Delay Adjust Selector: Press this button to
begin the process of adjusting the delay settings for
Dolby surround modes.See page 23 for more information on delay adjustments.
Ù Digital Input Selector: Press this button to begin
the process of selecting a digital source for use with
the currently selected input. Once the button has been
pressed, use the
‹ or › Buttons )# to choose
the desired input and then press the
Set Button @
to enter the setting into the unit’s memory.See page
27 for more information on digital audio.
ı Volume Control: Turn this knob clockwise to
increase the volume,counterclockwise to decrease the
volume.If the AVR 325 is muted,adjusting volume
control will automatically release the unit from the
silenced condition.
ˆ Input Indicators: A green LED will light to the left
of the input that is currently the input source for the
AVR 325.
˜ Main Information Display: This display delivers
messages and status indications to help you operate
the receiver. (See page 7 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: These LEDS will
light to show the surround mode and digital bitstream
in use.Note that depending on the specific combination of input sources and surround mode selected,
more than one indicator may light. (See page 28 for
more information.)
FRONT-PANEL CONTROLS
6
AVR325 harman/kardon
6
FRONT-PANEL INFORMATION DISPLAY
7
B
C
E
F
G
H
IJ
K
L
A
D
A Upper Display Line
B Lower Display Line
C OSD Indicator
D Multiroom Indicator
E Speaker/Channel Input Indicators
F PRESET Indicator
G MEMORY Indicator
H STEREO Indicator
I TUNED Indicator
J AUTO Indicator
K 192kHz Indicator
L 96kHz Indicator
A Upper Display Line: Depending on the unit’s status,
a variety of messages will appear here.In normal operation,the current audio and video input source information
will appear on this line.
B Lower Display Line: Depending on the unit’s
status,a variety of messages will appear here.In normal operation, the current surround mode name will
appear on this line.
C 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 OnScreen Display is being used.
D Multiroom Indicator: This indicator lights when
the multiroom system is active.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 34 for more infor mation on the Multiroom system.)
E Speaker/Channel Input Indicators: These indica-
tors 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 21 for more informa-
tion on speaker setup.) 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 page 29 for more information on
the channel indicators.)
F PRESET Indicator: This indicator lights when the
tuner is in use to show that the present number for the
current station being listened to appears in the Upper
Display Line.(See page 30 for more information on
tuner presets.)
G MEMORY Indicator: This indicator flashes when
entering presets and other information into the tuner’s
memory.
H STEREO Indicator: This indicator lights when an
FM station is being tuned in stereo.
I
TUNED Indicator:
This indicator lights when a station is being received with sufficient signal strength to
provide acceptable listening quality.
J AUTO Indicator: This indicator lights when the
tuner’s Auto mode is in use.
K 192kHz Indicator: This indicator lights when the
input source has a 192kHz bit rate.
L 96kHz Indicator: This indicator lights when the
input source has a 96kHz bit rate.
AVR325 harman/kardon
7
REAR-PANEL CONNECTIONS
¡ AM Antenna
™ FM Antenna
£ Preamp Outputs
¢ Subwoofer Output
∞ A-BUS Connector
§ Surround Speaker Outputs
¶ Front Speaker Outputs
• Fan Vents
ª Center Speaker Outputs
‚ Surround Back/Multiroom Speaker Outputs
⁄ Switched AC Accessory Outlet
¤ Unswitched AC Accessory Outlet
‹ AC Power Cord Jack
› Video Monitor Outputs
fi DVD Video Inputs
fl Video 1 Video Inputs
‡ Video 1 Video Outputs
° Video 2 Video Inputs
· Video 2 Video Outputs
a Video 3 Video Inputs
b Component Video Monitor Outputs
c DVD Component Video Inputs
d Video 2 Component Video Inputs
e RS-232 Port
f Multiroom IR Input
g Remote IR Input
h Remote IR Output
i Coaxial Digital Audio Output
j Multiroom Audio Outputs
k Optical Digital Audio Output
CD Audio Inputs
DVD Audio Inputs
Optical Digital Audio Inputs
Tape Inputs
Tape Outputs
Coaxial Digital Audio Inputs
Video 1 Audio Inputs
Video 1 Audio Outputs
Video 2 Audio Inputs
8-Channel Direct Inputs
Video 2 Audio Outputs
Video 3 Audio Inputs
¡ AM Antenna: Connect the AM loop antenna sup-
plied 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 sup-
plied with the antenna.
™ FM Antenna: Connect the supplied indoor (or an
optional external) FM antenna to this terminal.
£ Preamp Outputs: Connect these jacks to an
optional, exter nal power amplifier for applications
where higher power is desired.
¢ Subwoofer Output: Connect this jack to the line-
level input of a powered subwoofer. If an exter nal subwoofer amplifier is used, connect this jack to the subwoofer amplifier input.
∞ A-BUS Connector:
Connect this jack to an optional
A-BUS-certified remote room keypad or amplifier to
extend the multiroom capabilities of your AVR 325.
See page 34 for more information on A-BUS.
§ Surround Speaker Outputs: Connect these out-
puts to the matching + and – terminals on your surround channel speakers.In conformance with the new
CEA color-code specification, the blue ter minal is the
NOTE:To assist in making the correct connections for
multichannel input, output and speaker connections,
all connection jacks and terminals are 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
REAR-PANEL CONNECTIONS
8
AVR325 harman/kardon
8
33
41
39
37
35
31
j
hgf
d
b
·
‡
fi
42
40
¡
™
£
¢∞§ ¶
38
36
32
34
k
i
•
e
ª
a
‚
31
32
33
34
35
36
37
38
39
40
41
42
⁄
°c
2
fl
›
AVR 325
‹
9
REAR-PANEL CONNECTIONS
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 15 for more information on speaker polarity.)
¶ 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 color-coded (white for front left and red for front
right) (+) terminals on the AVR325 to the red (+)
terminals on the speakers and the black (–) terminals
on the AVR325 to the black (–) terminals on the
speakers.See page 15 for more information on
speaker polarity.
• Fan Vents:These ventilation holes are the output
of the AVR 325’s airflow system.To ensure proper
operation of the unit and to avoid possible damage to
delicate surfaces,make certain that these holes are
not blocked and that there is at least three inches of
open space between the vent holes and any wooden
or fabric surface.
ª Center Speaker Outputs: Connect these outputs
to the matching + and – terminals on your center
channel speaker. In confor mance with the new CEA
color-code specification, the green ter minal is the
positive,or “+,” terminal that should be connected to
the red (+) terminal on speakers with the older colorcoding.Connect the black (–) terminal on the AVR to
the black (–) terminal on your speaker. (See page 15
for more information on speaker polarity.)
‚ Surround Back/Multiroom Speaker Outputs:
These speaker terminals are normally used to power
the surround back left/surround back right speakers
in a 7.1 channel system. However,they may also be
used to power the speakers in a second zone,which
will receive the output selected for a multiroom system.
To change the output fed to these terminals from
the default of the Surround Back speakers to the
Multiroom Output, you must change a setting in the
Advanced Menu of the OSD system. See page 32 for
more information on configuring this speaker output. In
normal surround system use,the brown and black terminals are the surround back left channel positive (+)
and negative (–) connections and the tan and black
terminals are the surround back right positive (+) and
negative (–) terminals.For multiroom use,connect the
brown and black SBL terminals to the red and black
connections on the left remote zone speaker and connect the tan and black SBR terminals to the red and
black terminals on the right remote zone speaker.
⁄ Switched AC Accessory Outlet: These outlets
may be used to power any device you wish to have
turned on when the AVR325 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 325 is on or off.
NOTE: The total power consumption of all devices
connected to the accessory outlets should not exceed
100 watts.
‹ AC Power Cord Jack: Connect the AC power
cord to this jack when the installation is complete.
To ensure safe operation, use only the power cord
supplied with the unit. If a replacement is required it
must be of the same type and capacity.
› Video Monitor Outputs: Connect these jacks 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.
fi DVD Video Inputs: Connect the composite or S-
Video outputs of a DVD player or other video source
to these jacks.
fl Video 1 Video Inputs: Connect the composite or
S-Video PLAY/OUT jacks of a VCR or other video
source to these jacks.
‡ Video 1 Video Outputs: Connect the composite
or S-Video REC/IN jacks of a VCR or other video
recording device such as a DVD recorder or PVR to
these jacks.
° Video 2 Video Inputs: Connect the composite or
S-Video PLAY/OUT jacks of a VCR or other video
source to these jacks.
· Video 2 Video Outputs: Connect the composite
or S-Video REC/IN jacks of a VCR or other video
recording device such as a DVD recorder or PVR to
these jacks.
a Video 3 Video Inputs: Connect the composite or
S-Video PLAY/OUT jacks of a VCR or other video
source to these jacks.
b Component Video Monitor Outputs: Connect
these outputs to the component video inputs of a
video projector or monitor.When a source connected
to one of the
Component Video Inputs cd 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 Video 2 Component Video Inputs: Connect the
Y/Pr/Pb component video outputs of an HDTV set-top
converter, satellite receiver or other video source
device with component video outputs to these jacks.
e RS-232 Port: This jack is used to enable the
AVR 325 to be controlled by an exter nal computer
or programmable remote system that uses RS-232
commands.Due to the complexity of RS-232 connections,we recommend that they be made by a
trained and qualified custom installer. See page 16
for more information on the RS-232 control port.
f Multiroom IR Input:Connect the output of an IR
sensor in a remote room to this jack to operate the
AVR 325’s multiroom control system.
g Remote IR Input: If the AVR 325’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.
h 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.
i Coaxial Digital Audio Output: Connect this jack
to the coaxial digital input of a CD-R/RW, MiniDisc or
other digital recorder.
j Multiroom Audio Outputs: Connect these jacks
to the optional external audio power amplifier and
video distribution system that delivers the source
selected for multizone distribution.
k Optical Digital Audio Output: Connect this jack
to the optical digital input connector on a CD-R/RW,
MiniDisc or other digital recorder.
CD Audio Inputs: Connect these jacks to the
analog audio output of a compact disc player or CD
changer.
DVD Audio Inputs: Connect the left/right analog
outputs of a DVD player or other audio source to
these jacks.
Optical Digital Audio Inputs: Connect the optical
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 a Dolby Digital signal,
a DTS signal or a standard PCM digital source.
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.
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Coaxial Digital Audio 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 a Dolby Digital signal,
DTS signal or a standard PCM digital source.Do n ot
connect the RF digital output of an LD player to
these jacks.
Video 1 Audio Inputs: Connect the left/right
PLAY/OUT audio output jacks on a VCR or other video
source to these jacks.
Video 1 Audio Outputs: Connect the left/right
REC/IN audio input jacks on a VCR or other video
source to these jacks.
Video 2 Audio Inputs: Connect the left/right
PLAY/OUT audio output jacks on a VCR or other video
source to these jacks.
8-Channel Direct Inputs: These jacks are used
for connection to source devices such as DVD-Audio
or SACD players with discrete analog outputs.Depending
on the source device in use,all eight jacks may be
used, though in many cases only connections to the
front left/right, center,surround left/right and LFE
(subwoofer input) jacks will be used for standard 5.1
audio signals.
Video 2 Audio Outputs: Connect the left/right
REC/IN audio input jacks on a VCR or other video
source to these jacks.
Video 3 Audio Inputs: Connect the left/right
PLAY/OUT audio output jacks on a VCR, PVR, cable
set-top,satellite receiver, HDTV receiver or other video
source to these jacks.
REAR-PANEL CONNECTIONS
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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 Selector
x DTS Digital Mode Selector
y Logic 7 Mode Select Button
z Skip Down Button
` Transport Controls
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Skip Up Button
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Stereo Mode Select Button
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DTS Neo:6 Mode Select
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Macro Buttons
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Disc Skip Button
33
Preset Up/Down
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Clear Button
35
Memory Button
36
Delay/Prev.Ch.
37
›
Button
38
Speaker Select
39
Multiroom
40
Volume Up/Down
41
SPL Selector
42 Learn Button
43
Mute
44
EzSet Sensor Microphone
NOTE: The function names shown here are each button’s feature when used with the AVR325. Most buttons have additional functions when used with other devices.See pages
40–41 for a list of these functions.
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MAIN REMOTE CONTROL FUNCTIONS
IMPORTANT NOTE:The AVR 325’s remote may be
programmed to control up to eight devices,including
the AVR 325.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 325’s remote is shipped from
the factory to operate the AVR 325and 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
36–37 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 325.(See page 40 for infor mation about
alternate functions for the remote’s buttons.)
a Power Off Button: Press this button to place the
AVR 325 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 Transmitter Window:Point this window
towards the AVR 325 when pressing buttons on the
remote to make certain that infrared commands are
properly received.
c Program/SPL Indicator: This three-color indica-
tor is used to guide you through the process of programming the remote or learning commands from a
remote into the AVR325’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 36
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 325 is not tur ned on, this will power up the unit.
Next, it will select the source shown on the button as
the input to the AVR325. 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 operate the
AVR 325’s functions with the remote.
f AVR Selector: Pressing this button will switch the
remote so that it will operate the AVR325’s functions.If
the AVR325 is in the Standby mode, it will also tur n the
AVR 325 on.
g AM/FM Tuner Select: Press this button to select
the AVR325’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
8-Channel Direct Inputs.
(See page 26 for
more information.)
i Test Button: Press this button to begin the
sequence used to calibrate the AVR 325’s output levels.
(See page 24 for more information on calibrating the
AVR 325.)
j Sleep Button: Press this button to place the unit
in the Sleep mode.After the time shown in the display,
the AVR 325 will automatically go into the Standby
mode.Each press of the button changes the time until
turn-off in the following order:
This button is also used to change channels on your
TV when the TV is selected.
When the AVR 325 remote is being programmed with
the codes to operate another device,this button is also
used in the “Auto Search” process. (See page 36 for
more information on programming the remote.)
k Surround Mode Selector: Press this button to
cycle through the DSP,VMAx and Stereo surround
modes such as Hall,Theater,VMAx Near and Far,and
Surround Off.This button is also used to tune channels
when the TV is selected using the device
Input
Selector
e.When the AVR 325 remote is being
programmed with the codes of another device,this
button is also used in the “Auto Search” process.
(See page 36 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 dialogue
(center channel) intelligibility at low volume levels.
m Channel Select Button: This button is used to
start the process of setting the AVR 325’s output levels to
an external source.Once this button is pressed, use the
⁄/¤
Buttons n
to select the channel being adjusted,
then press the Set Button p, followed by the
⁄/¤
Buttons
n again, to change the level setting. (See
page 31 for more information.)
n
⁄/¤
Buttons:These multipurpose buttons 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 sound
field 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 AVR325.
p Set Button:This button is used to enter settings
into the AVR 325’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
&* to a source.(See
page 27 for more information on using digital inputs.)
r Numeric Keys: These buttons ser ve as a 10-
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
J goes out, pressing the TuningButtons
u9
≠
will move the frequency up or down in
single-step 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 30 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 sta-
tion. (See page 30 for more infor mation on the tuner.)
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 J is illumi-
nated, 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 J is NOT illuminated,
pressing these buttons will tune stations in single-step
increments.(See page 30 for more information.)
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MAIN REMOTE CONTROL FUNCTIONS
v OSD Button: Press this button to activate the
On-Screen Display (OSD) system used to set up or
adjust the AVR 325’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 28 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 through 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 28 for the available DTS Digital options.)
y Logic 7 Mode Select Button: Press this button
to select from among the available Logic 7 surround
modes.(See page 28 for the available Logic 7
options.)
z Skip Down Button: This button does not have a
direct function with the AVR 325,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 AVR325, 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 38 for more
information.)
Skip Up Button: This button does not have a
direct function with the AVR 325,but when used with
a compatibly programmed CD or DVD changer it will
change the disc currently being played in the changer.
Stereo Mode Select Button: Press this button
to select a stereo listening mode.The first press of
the button places the AVR in a true,two-channel,
left/right stereo mode with no surround processing.
The next press selects either five-channel stereo or
seven-channel stereo,depending on the speaker
configuration.
DTS Neo:6 Mode Select: Press this button to
select a DTS Neo:6 mode.These modes take a twochannel stereo- or matrix surround-encoded source
and create a full five-, six- or seven-channel sound
field. (See page 28 for the available DTS Neo:6
options.)
Macro Buttons: Press these buttons to store or
recall a “Macro”,which is a preprogrammed sequence
of commands stored in the remote.(See page 37 for
more information on storing and recalling macros.)
Disc Skip Buttons:This button has no direct
function for the AVR 325 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 38 for more information on using the
remote with products other than the AVR 325.)
Preset Up/Down: When the tuner is in use,
press these buttons to scroll through the stations
programmed into the AVR 325’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 325’s preset memory.Once
the
MEMORY Indicator G flashes,you have five
seconds to enter a preset memory location using
the
Numeric Keys r. (See page 30 for more
information.)
Delay/Prev Ch.: Press this button to begin
the process for setting the delay times used by the
AVR 325 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 AVR325’s
settings.
Speaker Select: Press this button to begin
the process of configuring the AVR 325’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 21 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
34 for more information on the Multiroom system.)
Volume Up/Down: Press these buttons to raise
or lower the system volume.
SPL Selector:This button activates the
AVR 325’s EzSet function to quickly and accurately
calibrate the AVR325’s output levels.Press and hold
the button for three seconds and then release it. Press
the “
5” or “7” Numeric Key r to indicate whether
you are using a 5.1-channel or a 6.1/7.1-channel
speaker system with the AVR 325.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 325’s remote.(See page 36
for more information on using the remote’s learning
function.)
Mute: Press this button to momentarily silence
the AVR 325 or TV set being controlled,depending on
which device has been selected.When the AVR 325
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
36 for more information on programming the remote.)
EzSet Sensor 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.)
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INSTALLATION AND CONNECTIONS
System Installation
After unpacking the unit, locating it in a place with adequate ventilation and placing it on a solid surface capable
of supporting its weight, you will need to make the connections to your audio and video equipment.
IMPORTANT NOTE:For your personal safety and to
avoid possible damage to your equipment and speakers,
it is always a good practice to turn off and unplug the
AVR and ALL source equipment from the AC output
before making any audio or video system connections.
Audio Equipment Connections
We recommend that you use high-quality interconnect
cables when making connections to source equipment
and recorders to preserve the integrity of the signals.
1. Connect the analog output of a CD player to the
CD Audio Inputs .
NOTE: When the CD player has both fixed and vari-
able audio outputs,it is best to use the fixed output
unless you find that the input to the receiver is so low
that the sound is noisy,or so high that it is distorted.
2. Connect the analog Play/Out jacks of a cassette
deck, MD, CD-R or other audio recorder to the
Tape
Input Jacks
. Connect the analog Record/In jacks
on the recorder to the
Tape Output Jackson
the AVR 325.
3. Connect the output of any digital sources such as
a CD or DVD changer or player, advanced video
game,a digital satellite receiver,HDTV tuner or digital
cable set-top box or the output of a compatible
computer sound card to the
Optical and Coaxial
Digital Audio Inputs
&*.
4.Connect the coaxial or optical
Digital Audio Outputs
ik on the rear panel of the AVR325 to the matching
digital input connections on a CD-R or MiniDisc recorder.
5.Assemble the AM Loop Antenna supplied with the
unit. Connect it to the
AM and GND Screw
Terminals
¡.
6. Connect the supplied FM antenna to the
FM (75-
ohm)
Connection ™. The FM antenna may be an
external roof antenna, an inside powered or wire-lead
antenna or a connection from a cable TV system.If
the antenna or connection uses 300-ohm twin-lead
cable,you must use the 300-ohm-to-75-ohm adapter
supplied with the unit to make the connection.
7. Connect the front, center,surround and surround
back speaker outputs
§¶ª‚ to the respective
speakers.
To ensure that all the audio signals are carried to your
speakers without loss of clarity or resolution, we suggest that you use high-quality speaker cable.Many
brands of cable are available and the choice of cable
may be influenced by the distance between your
speakers and the receiver, the type of speakers you
use,personal preferences and other factors.Your dealer
or installer is a valuable resource to consult in selecting the proper cable.
Regardless of the brand of cable selected, we recommend that you use a cable constructed of
multistrand
copper with a gauge of 14 or smaller.
Remember that
in specifying cable,the lower the number, the thicker
the cable.
Cable with a gauge of 16 may be used for short runs
of less than 10 feet.We do not recommend that you
use cables with an AWG equivalent of 18 or higher,
due to the power loss and degradation in performance
that will occur.
Cables that are run inside walls should have the appropriate markings to indicate listing with UL, CSA or other
appropriate testing agency standards.Questions about
running cables inside walls should be referred to your
installer or a licensed electrician who is familiar with
the NEC and/or the applicable local building codes in
your area.
When connecting wires to the speakers,be certain to
observe proper polarity.Note that the positive (+) terminal of each speaker connection now carries a specific color code,as noted on page 8. However, most
speakers still use a red terminal for the positive (+)
connection. Connect the “negative” or “black” wire
to the same terminal on both the receiver and the
speaker.
NOTE: While most speaker manufacturers adhere to
an industry convention of using black terminals for
negative and red ones for positive,some may vary
from this configuration.To ensure proper phase and
optimal performance,consult the identification plate on
your speaker or the speaker’s manual to verify polarity.
If you do not know the polarity of your speaker, ask
your dealer for advice before proceeding,or consult
the speaker’s manufacturer.
We also recommend that the length of cable used
to connect speaker pairs be identical. For example,
use the same length piece of cable to connect the
front-left and front-right or surround-left and surround-right speakers,even if the speakers are a
different distance from the AVR 325.
8. Connections to a subwoofer are nor mally made via
a line-level audio connection from the
Subwoofer
Output
¢ to the line-level input of a subwoofer with
a built-in amplifier.When a passive subwoofer is used,
the connection first goes to a power amplifier, which
will be connected to one or more subwoofer speakers.
If you are using a powered subwoofer that does not
have line-level input connections,follow the instructions furnished with the speaker for connection information.
9. If an exter nal multichannel audio source with 5.1
outputs such as an external digital processor/decoder,
DVD-Audio or SACD player is used, connect the
outputs of that device to the
8-Channel Direct
Inputs
.
Video Equipment Connections
Video equipment is connected in the same manner as
audio components.Again, the use of high-quality interconnect cables is recommended to preserve signal
quality.
1. Connect a VCR’s or other video source’s audio and
video Play/Out jacks to the
Video 1/Video 2 Audio
and Video Input Jacks fl°on the rear
panel.The Audio and Video Record/In jacks on the
VCR should be connected to the
Video 1/Video 2
Audio
and Video Output Jacks ‡·on
the AVR325.
2. Connect the analog audio and video outputs of a
satellite receiver, cable TV converter,television set or
any other video source to the
Video 3 Audio and
Video Input Jacks a.
3. Connect the analog audio and video outputs of a
DVD or laser disc player to the
DVD Audio and
Video Inputs fi.
4. Connect the digital audio outputs of a DVD player,
satellite receiver, cable box or HDTV converter to the
appropriate
Optical or Coaxial Digital Inputs
&*.
5. Connect the
Video Monitor Output › jacks on
the receiver to the composite or S-Video input of your
television monitor or video projector.
6. If your DVD player and monitor both have component video connections,connect the component outputs of the DVD player to the
DVD Component
Video Inputs
c. Even when component video connections are used, the audio connections should still
be made to either the analog
DVD Audio Inputs
or any of the Optical or Coaxial Digital Input Jacks
.
7. If other devices with component video outputs are
available,connect it to the
Video 2 Component
Video Inputs
d.The audio connections for this
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INSTALLATION AND CONNECTIONS
device should be made to either the Video 2 Audio
Inputs
or any of the Optical or Coaxial Digital
Input Jacks
.
8. If the component video inputs are used, connect
the
Component Video Monitor Outputs b to the
component video inputs of your TV, projector or display device.
9. If you have a camcorder,video game or other
audio/video device that is connected to the AVR on a
temporary rather than permanent basis,connect the
audio,video and digital audio outputs of that device to
the
Front-Panel Inputs &*(Ó.A device con-
nected here is selected as the Video 4 input,and the
digital inputs must be assigned to the Video 4 input.
(See page 19 for more information on input configuration.)
Video Connection Notes:
• When the component video jacks are used, the on-
screen menus are not visible and you must switch
to the standard composite or S-Video input on your
TV to view them.
• The AVR 325 will accept either standard composite,
S-Video or Y/Pr/Pb component video signals.
However, it will not convert composite or S signals
to component video.
• Component and composite video signals may only
be viewed in their native formats.
System and Power Connections
The AVR 325 is designed for flexible use with multiroom systems,external control components and
power amplifiers.
Main Room Remote Control Extension
If the receiver is placed behind a solid or smoked
glass cabinet door, the obstruction may prevent the
remote sensor from receiving commands.In this
event, an optional remote sensor may be used.
Connect the output of the remote sensor to the
Remote IR Input g jack.
If other components are also prevented from receiving
remote commands,only one sensor is needed. Simply
use this unit’s sensor or a remote eye by running a
connection from the
Remote IR Output h jack to
the Remote IR Input jack on Harman Kardon or other
compatible equipment.
Multiroom IR Link
The remote room IR receiver should be connected to
the AVR 325 via standard coaxial cable.Plug the IR connection cable into the
Multiroom IR Input f jack on
the AVR 325’s rear panel.
If other Harman Kardon compatible source equipment
is part of the main room installation, the
Remote IR
Output h jack on the rear panel should be connected
to the IR IN jack on source equipment.This will enable
the remote room location to control source equipment
functions.
NOTE: All remotely controlled components must be
linked together in a “daisy chain.” Connect the
IR OUT
jack of one unit to the IR IN of the next to establish
this chain.
Multiroom Connections
The AVR 325 is equipped with multizone capabilities
that allow it to send a separate audio source to the
remote zone from the one selected for use in the
main room.
Depending on your system’s requirement, three
options are available for audio connection:
Option 1: Use high-quality,shielded audio interconnect cable from the AVR 325’s location to the remote
room. In the remote room, connect the interconnect
cable to a stereo power amplifier.The amplifier will be
connected to the room’s speakers.At the AVR 325,
plug the audio interconnect cables into the
Multiroom
Audio Output
j jacks on the AVR 325’s rear panel.
Option 2: Connect the Multiroom Audio Output j
jacks on the AVR325 to the inputs of an optional
stereo power amplifier. Run high-quality speaker wire
from the amplifier to the speakers in the remote room.
Option 3: Taking advantage of the AVR 325’s built-in
seven-channel amplifier, it is possible to use two of the
amplifier channels to power speakers in the remote
room.When using this option you will not be able to
use the full 7.1-channel capabilities of the AVR 325 in
the main listening room, but you will be able to add
another listening room without additional external
power amplifiers.To use the internal amplifiers to
power a remote zone,connect the speakers for
the remote room location to the
Surround Back/
Multiroom Speaker Outputs
‚. Before using the
remote room you will need to configure the amplifiers
for surround operation by changing a setting in the
Advanced Select menu, following the instructions
shown on page 32.
NOTE: For all options,you may connect an optional IR
sensor in the remote room to the AVR 325 via an
appropriate cable.Connect the sensor’s cable to the
Multiroom IR Input f on the AVR 325 and use the
Zone II remote to control the room volume.Alternatively,you may install an optional volume control
between the output of the amplifiers and the speakers.
A-BUS®Installation Connections
The AVR 325 is among the very few receivers available today that offer built-in A-BUS Ready
®
operation.
When used with an optional A-BUS keypad or control
module,you have all the benefits of remote zone
operation without the need for an external power
amplifier.
To use the AVR 325 with an approved A-BUS product, simply connect the keypad or module that is in
the remote room to the AVR 325 using standard
Category 5 wiring that is properly rated for the in-wall
use specific to the installation.Terminate the wiring
at the receiver end to a standard RJ-45 jack in
compliance with the instructions furnished with the
A-BUS module.
No further installation or adjustment is needed, as the
A-BUS connector on the AVR 325 routes the signals
in and out of the keypad to their proper destination for
power, signal source and control. The output fed to the
A-BUS jack is determined by the AVR 325’s multiroom system, and the menus may be used as is.
RS-232 Connections
The AVR 325 includes an RS-232 serial port connection that may be used to control the unit via compatible optional, exter nal keypads or control systems.The
physical connection to the AVR 325 from the control
device is a standard D-9 connection, but to ensure
compatible and proper operation, specific software
commands and pin wiring schemes are required.
Due to the complexity of RS-232 connections,
we recommend that they be made only by trained
installers familiar with their use.To obtain additional
information on the use of the AVR 325 with RS-232
control, please contact Har man Kardon’s customer
service department or consult our Web site at
www.harmankardon.com.
AC Power Connections
This unit is equipped with two accessory AC outlets.
They may be used to power accessory devices,but
they should not be used with high-current-draw equipment such as power amplifiers.The total power draw
to each outlet may not exceed 100 watts.
The
Switched AC Accessory Outlet ⁄ will receive
power only when the unit is on.This is recommended
for devices that have no power switch or a mechanical
power switch that may be left in the “ON”position.
NOTE: Many audio and video products go into a
Standby mode when they are used with switched outlets,and cannot be fully turned on using the outlet
alone without a remote control command.
The
Unswitched AC Accessory Outlet ¤ will
receive power as long as the unit is plugged into a
powered AC outlet.
AVR325 harman/kardon
15
39
33
36
16
INSTALLATION AND CONNECTIONS
The AVR 325 features a removable power cord that
allows wires to be run to a complex installation so that
the unit itself need not be installed until it is ready for
connection.When all connections described above
have been made,connect the AC power cord to the
AC Power Cord Jack ‹.
The AVR 325 draws significantly more current than
other household devices,such as computers,that use
removable power cords.For that reason, it is important
that only the cord supplied with the unit (or a direct
replacement of identical capacity) be used.
Once the power cord is connected, you are almost
ready to enjoy the AVR 325’s incredible power and
fidelity!
AVR325 harman/kardon
16
TROUBLESHOOTING GUIDE
SYMPTOMCAUSESOLUTION
Unit does not function when Main• No AC Power• Make certain AC power cord is plugged into
Power Switch is pusheda 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 pictureare secure
•
Mute is on• Press Mute Button
• Volume control is down• 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 upon page 32 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 reddue to possible shortspeaker ends
• Amplifier is in protection mode • Contact your local Harman Kardon service center
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
• 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 325’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
Surround Mode 7 and
the
TunerMode Selector ^ buttons for three
seconds.
The unit will turn on automatically and display the
RESET message in the Main Information
Display
˜.
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.
17
TROUBLESHOOTING GUIDE
AVR325 harman/kardon
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43
AVR325 harman/kardon
18
harman/kardon
Service Bulletin
Service bulletin # H/K2003-05 Sept. 2003
Warranty labor rate: MAJOR repair
To: All harman/kardon Service Centers
Model: AVR325/AVR525
Subject: Software Upgrade
A software upgr ade is possible for the sub Micro CXP82852-375Q (IC12) in models AVR325 and AVR525;
units without the upgrade may exhibi t the following symptoms:
1) Dolby Digital EX mode only, Delay adjustment, any speaker size selected: Adjusting the delay time at 14 feet or
greater for surround back, surround or center channels, may generate a distortion (like a feedback signal) from the
subwoofer output. Lowering the delay level below 14 feet eliminates the distortion.
2) The Triple Crossover feature: Settings allow a different crossover point to be used for the front left/right, center
and surround speakers. If the settings are not configured properly, the user could actually create a frequency notch
and “cut out” certain bass frequencies, or, over-enhance bass frequencies by overlapping the X-Over points.
(NOTE: It would be a rare occurrence where symptom #2 would generate a complaint)
AVR325 IC12, (CXP82852-375Q) order and replace with h/k part # 55646260 (CXP82860-390Q).
AVR525 IC12, (CXP82852-377Q) order and replace with h/k part # 55645960 (CXP82860-391Q).
WARNING: FOLLOW PROPER STATIC CONTROL PROCEDURES and use caution during the removal of
the DSP board, and during installation of new IC12 to prevent damage.
Sub Micro CXP82852-375Q (IC12) is on the DSP board. Remove top cover, Processor board, all Molex connectors
and rear screws necessary to access DSP board.
Disengage both Processor and DSP PCB from the
rear PCB connector by pushing back on the rear
board; lift the Processor PCB up and out of the unit.
Not all connectors need to be removed – when
enough connectors are unplugged, the Processor
PCB can be lifted out of the way to access the DSP
board.
Disengage the DSP PCB from its rear connector by
pushing back on the rear PCB; lift the DSP PCB up
and out of the unit.
Locate and replace IC12; See drawing.
After replacement, replace all connectors and
screws. CAUTION: At the rear screws, if using a
power tool, use care and minimum force to avoid
damaging the various plastic receptacles.
Test the unit.
Model
AVR325
AVR525
Serial Number ( 120v)
All Seria l Numbers Affected
All Seria l Numbers Affected
Status Action
Dolby Digital Ex Mode Delay Adjustment
Oscillation; Triple Crossover
Dolby Digital Ex Mode Delay Adjustment
Oscillation; Triple Crossover
Change IC12
Change IC12
19
AVR325 harman/kardon
harman/kardon Service Bulletin
Service bulletin # HK2004-04 Rev1 August 2005
To: All harman/kardon Service Centers
Model: AVR325, AVR525, AVR430, AVR630
Subject: Rewiring Bias/Fan cables
In the event you receive an AVR325, AVR525, AVR430 or AVR630 with the complaint: “the unit
intermittently goes in standby or the fan runs constantly” perform the following modification. Please
note other component or connection failures can cause the unit to go in to standby.
Synopsis: Hard wire Bias/Fan cables (7 cables, 12 connectors) from Bias PCB’s to main PCB, surround PCB.
Recheck all bias voltages.
1) Remove the top cover
2) Remove the DSP and Processor boards.
3) Locate and identify Bias cables connecting Bias and Surround PCB’s to main PCB:
All models MAIN PCB Location: P805, N801, N802, N803, N804
AVR430,630 SURROUND PCB Location: N301,P307 AVR325,525 SURROUND PCB Lo c ation: P 307, P310
All models BIAS PCB Location: P812, P813, P814, P815, P816
Warranty labor rate: MAJOR repair
20
AVR325 harman/kardon
4) Unplug each the cable on the Bias PCB, desolder the female plugs, cut the connectors off each wire,
strip the insulation 1/8” on each end and solder directly to the PCB assembly in each location.
5) For locations N801, N802, N803, N804 on the Main PCB, set the unit on its side and remove the
bottom grille. (See Figure 2) Desolder and remove each connector. Cut the connectors off each wire,
strip the insulation 1/8” on each end and solder directly to the PCB assembly in each location.
6) For location P805 (see Figure 1) on the Main PCB, unplug the cable, carefully cut away the female
plug with diagonal cutters on the PCB surface, leaving the three conductors intact. Cut the connector
off each wire, strip the insulation 1/8” on each end, slide a piece of shrink tubing on each conductor
and solder each wire directly to the three conductors on the PCB. Heat the shrink tubing to complete
the connection, and add some silicon seal or similar adherent to affix the wires on the PCB.
21
AVR325 harman/kardon
7) Replace the DSP and Processor boards
8) Recheck all bias voltages, following the instructions below:
MAIN AMP IDLE CURRENT ADJUSTMENT PROCEDURE
(Set variable resistors for MAIN/SURROUND Boa rd)
Specialized equipment/parts needed:
Variable AC transformer (“Variac” type) to adjust and monitor AC line voltage.
Two pin harness plug to connect DMM to idle current test points, hk part# 55212910NR or equivalent
Conditions:
No Signal; No Load
AC Line Voltage adjust to: 120V/60Hz (120v model) or 230V/50Hz (230v model)
After turning the unit ON for 25 minutes or more to keep the Power/Driver TR at normal temperature,
adjust the DC voltage at the two pin connector to the specified value by rotating the variable resistors.
VR71-74 are located on the Bias PCB’s.
P801-804 are located on the main PCB just below the Bias PCB’s. To guide/seat the two pin harness plug
into the sockets, you may have to attach the harness wire to a long blade screwdriver as P801-803 are in
a deep recess.
CHANNEL ADJUSTMENT M E ASUREME NT POI NT VOLTAGE
FRONT L CHAN VR71 P801 23mV ±2mV
FRONT R CHAN VR74 P804 23mV ±2mV
SURROUND L CHAN VR73 P803 23mV ± 2mV
SURROUND R CHAN VR72 P802 23mV ±2mV
SURROUND BACK A MP IDLE CURRENT ADJUSTMENT PROCEDURE
Same conditions as above.
After turning the unit ON for 25 minutes or more to keep the Power/Driver TR at normal temperature,
adjust the voltage value at the two pin connector to the specified value by rotating the variable resistors.
AVR325-525: VR31,41,51 and P301,308,309 are located at the center of the Surround PCB
AVR430-630: VR31,32,51 and P301,308,309 are located at the top edge of the Surround PCB
CHANNEL ADJUSTMENT MEASUREMENT POINT VOLTAGE
CENTER
SURROUND BACK L VR31 P301 23mV ±2mV
SURROUND BACK R VR51 P309 23mV ±2mV
AVR325-525 VR41 P308
AVR430-630 VR32 P308
23mV ±2mV
9) After 5 minutes, check all voltages again at measurement points and re-adjust if necessary.
10) After more 5 minutes, check all voltages again at measurement points and re-adjust if necessary.
11) Replace the top cover and test the unit.
Model
AVR325
AVR525
AVR430
AVR430
AVR630
AVR630
Serial Number ( 120v) Ser i al Number (230v)
All serial num bers af f ected n/a
All serial num bers af f ected n/a
TF0001-01000
to
TF0001-08116
TF0007-08117 and above TF0007-06664 and above Modifi ed by Factory None Required
TF0002-01000
to
TF0002-11138
TF0002-11139 and above TF0007-05651 and above Modifi ed by Factory None Required
TF0006-01000
to
TF0006-06663
TF0007-01000
to
TF0007-05650
Unit may shut down or f an
Unit may shut down or f an
Unit may shut down or f an
Unit may shut down or f an
Status Action
may run conti nuously
may run conti nuously
may run conti nuously
may run conti nuously
Hard wire bias cables
to PCB’s
Hard wire bias cables
to PCB’s
Hard wire bias cables
to PCB’s
Hard wire bias cables
to PCB’s
AVR325 harman/kardon
22
harman/kardonTECH TIPS
Troubleshooting tips and solutions to common service problems
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
HK3375/3475 C301 Front PCB 0.1Farad 5.5v capacitor # CEGT-B104J-0J0
HK3250
* After approximately two weeks of being disconnected from A C suppl y , even a nor mall y functioning receiver may
lose any program med settings and switch t o default settings. (Four weeks for 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
C PUN COVER TO
1DISPLAY HNA-15LL01
1CONN-PHJAC 6.35 ST HORZ CKX3-6.35-04 BK 0
1
C PUN BRACKET HEADPHONE
1SW PUSH POWER SWITCH 5.0A 250.0V 100MI0OHM 1T 2P
1
C MLD BUTTON INDICATOR STAND-B
1
C DEC BUTTON POWER
1
C DEC BUTTON STANDB
1
C DEC CABINET PANEL FRONT 32
1
C DEC CRYSTAL FILTER DISPLA
1
C NON-METAL DIFFUSER 0.2T 62.5*41 WH
1
C DEC KNOB MAIN HIPS 94H
1
C DEC CRYSTAL DISPLAY AVR32
1
C NON-METAL DIFFUSER 0.2T 59.6*41 WH
3
C DEC KNOB TONE
2
C MLD BUTTON INDICATOR VIDEO
1
C DEC BUTTON 7 KE
3D-LEM TOTX178B RD RND C
1CON PHONO SCKT RCA 1P W/GND JE010003MN
1
C PUN SHIELD DIGITAL E
1
C DEC BUTTON 3 KE
1
C DEC BUTTON 5 KE
4
C FOOT RUBBER ROUND 3.0MM 25.0MM JIS 60 Y DI
4
C FOOT ASSY ROUND 12.5MM 50MM
1
C CPL CABINET CHASSIS MAIN SECC 1.0
1CON PHONO SCKT RCA-313P 3 PIN
1CON DIN SCKT SOCKET CONNECTOR SVHS EST-S408
1
C PUN SHIELD FENCE TON
1SWIROT EC16B24204A5 5V 500U0A 10T 3P 0 0
1
C PLASTIC MOLD REFRACTOR B WH
1
C PLASTIC MOLD REFRACTOR E WH
1
C MLD HOLDER FL-GUID
1IC-REMOTE RPM6938-RSIP-A3 RECEIVER 38KH
1
C NON-METAL DIFFUSER REFLECTOR C W
1
C PLASTIC MOLD REFRACTOR F WH
1
C CPL CABINET CHASSIS FRONT AVR32
1TF-LAM POWER-TRANSFORMER 120
1
C PUN COVER TRANS BOTTOM AVR325 1
C PUN BRACKET FAN FRONT AVR32
1FAN RDL8025B C185HS10H1910 ( WIRE:300MM) 0 A
1CONN-SPE TERMINAL SPKR 6P SH0611708P FE 19MM 6
6
C PUN BRACKET HEATSINK SECIT RT2250(PAV5005
1
C METAL HEATSINK(AMP) 3CH AVR325 7CON DIN SCKT MIX SOCKET RCA-118JP1
1CON PHONO SCKT RCA 9P W/GNDCAP JW-4109RS
2
C PUN BRACKET FRAME-GUIDE SECC T1.
2
C PUN BRACKET AC INLE
1
C METAL STANDOFF HEX MF M4X8 6MMOD 111.2
1
C METAL HEATSINK 17*15*30 AVR520 1CON MAINS INLET A/C INLET 7014-NG
1CONN-SPE AC OUTLET 2P 110V FE 12.75MM 2 BK 0
1 EPR TUNER MODULE KST-M1011MW0-62 AVR325 OEM US
1
C METAL HEATSINK(MAIN) AVR325 -
1FAN RDL8025B C185HS10H1910 ( WIRE:400MM) 0 A
1
C PUN BRACKET FAN REAR AVR32
1CON PHONO SCKT RCA 1P W/GND JE010003LN OG
1D-LEM TOTX178B RD RND C
1CON PHONO SCKT RCA 2P W/GNDCAP JW-1502SN OO
2CON PHONO SCKT RCA 4P JW-4104RS
2CON PHONO SCKT RCA 4P JW-4104RSC
4WASHER-SPRING 4
4WASHER-FLAT 4
3WASHER FIBER 3 X 7.9 X 0.8T
AVR325/525 Alignment spec.rev01.
1. MAIN B'D
: 5 Min. After power on, please set up Bias as below,
Front Left > adjustingVR71, check P801 to 23mV +2mV/- 1mV.
Surr Left > adjustingVR73 check P803 to 23mV +2mv/-1mV.
Front Right > adjustingVR74check P804 to 23mV +2mV/-1mV.
Surr Right > adjustingVR72check P802 to 23mV +2mV/-1mV.
P801 FRONT L-CHP803 SURROUND L-CH
AVR325harman/kardon
26
VR71 FRONT L-CH VR73 SURROUND L-CH
P804 FRONT R-CHP802 SURROUND R-CH
AVR325harman/kardon
27
VR74 FRONT R-CH VR72 SURROUND R-CH
AVR325harman/kardon
28
2. BACK SURROUND B'D
: 5 Min. After power on, please set up Bias as below,
SBL > adjusting VR31 check P301 to 23mV +2mv/-1mV.
Center > adjusting VR41 check P308 to 23mV +2mV/-1mV.
SBR > adjusting VR51 check P309 to 23mV +2mV/-1mV.
P301 VR31 BACK SURROUND L-CH VR41 P308 CENTER-CH
AVR325harman/kardon
29
P309 VR51 BACK SURROUND R-CH
AVR325harman/kardon
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