Harman Kardon AVR-325 Service manual

harman/kardon

AVR325

A/V DOLBY DIGITAL RECEI VER

SERVICE MANUAL

ESD W ARNING………………………….…….2

LEAKAGE TESTING……………….....……....3

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 Rev2 8/2005

AVR325 harman/kardon

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

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

semiconductor "chip" components.

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

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

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

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

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

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

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

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

sufficient to damage ES devices.

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

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

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

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

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

CAUTION :

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.

AVR325 harman/kardon

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

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 measure theAC voltagedrop across the resistor. (This test 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.

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

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 Tuner Section

Frequency Range 87.5 –108.0MHz

Usable Sensitivity IHF 1.3µV/ 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 Tuner Section

Frequency Range 325–1710 kHz Signal-to-Noise Ratio 45dB Usable Sensitivity Loop 500 µV 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-Video) 10Hz–8MHz (–3dB)

Video Frequency Response (Component Video) 10Hz–50MHz (–3dB)

General

Power Requirement AC 120V/60Hz Power Consumption 118W idle,890W maximum

(7 channels driven)

Dimensions Width 17.3 inches (440mm)

Height 6.5 inches (165mm) Depth 17.1 inches (435mm)

Weight 40 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

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 normally left in the “ON” position.

2 System Power Control: When the Main Power Switch

is “ON,” press this button to turn 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 turn 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

/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

‹

›

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 ^ Tuner Mode 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



8 ) $

AVR 325

(

ready

LOGIC 7 VMAx

FRONT-PANEL CONTROLS

5 5

AVR325 harman/kardon

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 Station 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

AVR325 harman/kardon

FRONT-PANEL INFORMATION DISPLAY

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 information 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.

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

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, external 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 external 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 terminal 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

AVR325 harman/kardon

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31 32 33 34 35 36 37 38 39 40 41 42

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AVR 325

‹

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 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 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 external 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 per mits 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.

AVR325 harman/kardon

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 not 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

AVR325 harman/kardon

MAIN REMOTE CONTROL FUNCTIONS

●

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 T uner 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

‹

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

Skip Up Button

Stereo Mode Select Button

DTS Neo:6 Mode Select

Macro Buttons

Disc Skip Button

Preset Up/Down

Clear Button

Memory Button

Delay/Prev.Ch.

›

Button

Speaker Select

Multiroom

Volume Up/Down

SPL Selector

42 Learn Button 43

Mute

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.

AVR 325

AVR325 harman/kardon

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 turned 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 turn 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.

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.)

⁄/¤

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.

‹

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 serve 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 Tuning Buttons

≠

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 information 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.)

AVR325 harman/kardon

min80min70min60min50min

min20min10min

min

OFF

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.)

AVR325 harman/kardon

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 Jacks on

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 AVR 325 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 normally 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 external 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

AVR325 harman/kardon

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, external 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 Harman 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

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

TROUBLESHOOTING GUIDE

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 are secure

•

Mute is on • Press Mute Button

• Volume control is down • Tur n 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 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 red due to possible short speaker 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

• 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 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.

TROUBLESHOOTING GUIDE

AVR325 harman/kardon

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

Status Action

Dolby Digital Ex Mode Delay Adjustment

Oscillation; Triple Crossover

Dolby Digital Ex Mode Delay Adjustment

Oscillation; Triple Crossover

Change IC12

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

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.

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

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

TF0001-08116

TF0007-08117 and above TF0007-06664 and above Modifi ed by Factory None Required

TF0002-01000

TF0002-11138

TF0002-11139 and above TF0007-05651 and above Modifi ed by Factory None Required

TF0006-01000

TF0006-06663

TF0007-01000

TF0007-05650

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

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

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 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

#3439247315 #2058322101

AVR325 harman/kardon

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55615050

AVR325 harman/kardon

AVR 325 EXPLODED VIEW PARTS LIS

# Part Number Q'ty Description

1 55178050X 2 55142780N 3 55050690X 4 55124350X 5 55178000N 6 55178020X 7 55177810X 8 55177820X

9 55405770X 10 55177800X 11 55191560X 12 55177740X 13 55405840X 14 55177990X 15 55177750X 16 55178030X 17 55445260X 18 55125440X 19 55175950X 20 55182550X 21 55445110X 22 55445160X 23 55174760X 24 55445360X 25 55406540X 26 55171510X 27 55179910OO 1 PR-ROT 100K0 OHM NON-LINEAR RK14K12400BQ 0 28 55113960X 29 55179920OO 2 PR-ROT 100K0 OHM NON-LINEAR RK14K12400BR 0 30 55177570X 31 55134900N 32 55191530X 33 55178940X 34 55178440X 35 55155930X 36 55177960X 37 55178930X 38 55406440X 39 55506280N 40 55406640X 41 55406840X 42 55509100X 43 55436090X 44 55168710X 45 55406340X 46 55149520X 47 55436080X 48 55178170X 49 55222020X 50 55407240X 51 55176410X 52 55222010X 53 55206550N 54 55 55406240X 56 BLAN 57 55509110X 58 55406940X 59 55246370X 60 55125440N 61 55191600X 62 55191420X 63 55191450X

C PUN COVER TO 1 DISPLAY HNA-15LL01 1 CONN-PHJAC 6.35 ST HORZ CKX3-6.35-04 BK 0 1

C PUN BRACKET HEADPHONE 1 SW 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 3 D-LEM TOTX178B RD RND C 1 CON 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 1 CON PHONO SCKT RCA-313P 3 PIN

1 CON DIN SCKT SOCKET CONNECTOR SVHS EST-S408

C PUN SHIELD FENCE TON 1 SWIROT 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 1 IC-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 1 TF-LAM POWER-TRANSFORMER 120 1

C PUN COVER TRANS BOTTOM AVR325 1

C PUN BRACKET FAN FRONT AVR32 1 FAN RDL8025B C185HS10H1910 ( WIRE:300MM) 0 A 1 CONN-SPE TERMINAL SPKR 6P SH0611708P FE 19MM 6 6

C PUN BRACKET HEATSINK SECIT RT2250(PAV5005 1

C METAL HEATSINK(AMP) 3CH AVR325 7 CON DIN SCKT MIX SOCKET RCA-118JP1 1 CON 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 1 CON MAINS INLET A/C INLET 7014-NG 1 CONN-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 -

1 FAN RDL8025B C185HS10H1910 ( WIRE:400MM) 0 A 1

C PUN BRACKET FAN REAR AVR32 1 CON PHONO SCKT RCA 1P W/GND JE010003LN OG 1 D-LEM TOTX178B RD RND C 1 CON PHONO SCKT RCA 2P W/GNDCAP JW-1502SN OO 2 CON PHONO SCKT RCA 4P JW-4104RS 2 CON PHONO SCKT RCA 4P JW-4104RSC

55554510

AVR325 harman/kardon

64 55405670X 65 66 67472300N 67 55176390X 68 55176420X 69 55176330X 70 55407040X 71 55426050X 72 55436070N 73 55176400X 74 55407140X 75 55212250X 76 55406740X 77 55125220X

55178960X

S1 55127070X S2 55127120X S3 55309240X S4 55127090X S5 55127280X S6 55164800X S7 55178320X S8 55231250X S9 55178340X SG 55135460X SF 55453660X N1 55309350X

C CPL REAR PANEL AVR32 1 AC PLASTIC DUST COVER AVR32 1 CONN-SPE 87204-6063 SUB D FE 2.77MM 9 -- 1630 A1 3 CON PHONO SCKT STEREO JACK JW350S 1

C PUN BRACKET BKT GROUND ET 0.5T AVR52 5 CON PHONO SCKT RCA 4P JW4104RS GND 4

C METAL STANDOFF HEX MF M4X8 6MMOD 31.9H 1 JACK-TELE SNAP-IN GOLDEN TELECOM GDL1-8P8 1 CONN-SPE TERMINAL SPKR 8P SH081136J 1

C METAL HEATSINK REG 118*20*50 4

C METAL STANDOFF HEX MF M4X8 6MMOD 61.9H 2 CABLE-FIX CLAMP WIRE UL DENNISON 0 0 1

C PUN COVER BOTTOM AVR32 3

C BUFFER PC

C SPRING PLATE SPRING GND C5212 0.2

72 SCREW-ST 3MM 10MM 31 SCREW-ST 3MM 8MM

4 SCREW-BM 4MM 10MM 8 SCREW-ST 4MM 8MM 5 SCREW-ST 3MM 6MM 1 SCREW-ST 3MM 8MM

35 SCREW-ST 3MM 12MM

5 SCREW 4MM 8MM 4 SCREW-ST 4MM 10MM

46 SCREW-ST 3MM 10MM

8 SCREW-ST 5MM 10MM 4 NUT-HEXAGON 4.0MM 5.0MM CIRCULAR EXTERNA

W1 55127300X W2 55127310X W3 55168690X W4 55131730X W5 20372500X

35 WASHER-SPRING 3 14 WASHER-FLAT 3

4 WASHER-SPRING 4 4 WASHER-FLAT 4 3 WASHER FIBER 3 X 7.9 X 0.8T

AVR325 harman/kardon

AVR325/525 Alignment spec. rev01.

1. MAIN B'D : 5 Min. After power on, please set up Bias as below, Front Left > adjusting VR71, check P801 to 23mV +2mV/- 1mV. Surr Left > adjusting VR73 check P803 to 23mV +2mv/-1mV. Front Right > adjusting VR74 check P804 to 23mV +2mV/-1mV. Surr Right > adjusting VR72 check P802 to 23mV +2mV/-1mV.

P801 FRONT L-CH P803 SURROUND L-CH

AVR325 harman/kardon

VR71 FRONT L-CH VR73 SURROUND L-CH

P804 FRONT R-CH P802 SURROUND R-CH

AVR325 harman/kardon

VR74 FRONT R-CH VR72 SURROUND R-CH

AVR325 harman/kardon

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

AVR325 harman/kardon

P309 VR51 BACK SURROUND R-CH

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Harman Kardon AVR-325 Service manual

Specifications and Main Features

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