Harman Kardon HK-3490 Service manual

harman/kardon

HK3490

STEREO RECEIVER

SERVICE MANUAL

ESD WAR N ING……………………………….2

LEAKAGE TESTING……………….…..…....3

BASIC SPECIFICATIONS…………………..4
PACKAGING…………………………….……5

FRO NT PANEL CO NTRO L S ………..…..…..6

REAR PANEL CONNECTIONS………….…8
REMOTE CONTROL FUNCTIONS……….11

CONNECTIONS/INSTALLATION………....14

OPERATION………………………...………21
TROUBLESHOOTING GUIDE…...……..…26

PROCESSOR RESET……………………....26

250 Crossways Park Dr.

CONTENTS

DISASSEM BLY…...…………………………..27

UNIT EXPLOD ED VI EW…………..…….…..30

EXPLODED VIEW PARTS LIST……………31
AMP BIAS ADJUSTMENT……………….…32
BLOCK DIAGRAM…………………………..33
PCB DRAWINGS……………………………34
ELECTRICAL PARTS LIST………..….……40
SEMICONDUCTOR PINOUTS…….………63
SCHEMATICS………….….……………….104
WIRING DIAGRAM…….….……………….108

harman/k ar don, Inc.

Released 2008 Woodbur y, New York 11797 Rev0 6/2008
Discontinued XXXX

HK3490 harman/kardon

2

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

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

semiconductor "chip" components.

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

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

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

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

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

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

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

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.

HK3490 harman/kardon

3

Before returning the unit to the user, perform the following safety checks :

1. Inspect all lead dress to make certain that

leads are not pinched or that hardware is not

lodged between the chassis and other metal

parts in the unit.

2. Be sure that any protective devices such as

nonmetallic control knobs, insulating fish-

papers, cabinet backs, adjustment and

compartment covers or shields, isolation

resistor-capacity networks, mechanical

insulators, etc. Which were removed for the

servicing are properly re-installed.

3. Be sure that no shock hazard exists ; check for leakage

current usingSimpson Model 229 Leakage Tester, standard

equipment item No. 21641, RCA Model WT540A or use

alternate method as follows : Plug the power cord directly

Into a 120 volt AC receptacle (do not use an Isolation

Transformer for this test). Using two clip leads, connect a

1500 ohms,10watt Resistor paralleledby a 0.15uFcapacitor,in series withall exposed metalcabinet parts anda known earthground, such

as a water pipe or conduit. Use a VTVM or VOM with 1000 ohms per volt, or higher sensitivity to measure the AC voltage drop across the

resistor. (See diagram) Move the resistor connection to each exposed metal part having a return path to the chassis (antenna, metal,

cabinet, screwheads, knobsand controlshafts, escutcheon, etc.) and measurethe ACvoltage dropacross the resistor. (Thistest shouldbe

performed withthe 0.35 volt RMS or more is excessiveand indicates apotential shock hazardwhich must be corrected before returning the

unit to the owner.

29

HK 3490 TECHNICAL SPECIFICATIONS

Audio Section

Stereo Mode:
Continuous Average Power (FTC):

120 Watts per channel, 20Hz – 20kHz,
@ <0.07% THD, both channels driven into 8 ohms
150 Watts per channel, 20Hz – 20kHz
@ <0.2% THD, both channels driven into 4 ohms

Input Sensitivity/Impedance

Linear (High-Level): 200mV/47k ohms

Signal-to-Noise Ratio (IHF-A): 95dB

Frequency Response @ 1W (+0dB, –3dB): 10Hz –110kHz

High Instantaneous Current Capability (HCC): ±45 Amps

Transient Intermodulation
Distortion (TIM): Unmeasurable
Rise Time: 16 µsec
Slew Rate: 40V/µsec

FM Tuner Section

Frequency Range: 87.5 – 108.0MHz
Usable Sensitivity: IHF 1.3µV/13.5dBf
Signal-to-Noise Ratio: Mono/Stereo 73/72dB
Distortion: Mono/Stereo 0.3/0.4%
Stereo Separation: 40dB @ 1kHz
Selectivity: ±400kHz, 65dB
Image Rejection: >80dB
IF Rejection: >100dB
Tuner Output Level: 1kHz, ±100kHz, Dev 500mV

AM Tuner Section

Frequency Range: 520 – 1720kHz
Signal-to-Noise Ratio: >40dB
Usable Sensitivity: Loop 500µV/M
Distortion: 1kHz, 50% Mod 0.8%
Selectivity: ±10kHz, >25dB

Video Section

Television Format: NTSC/PAL/SECAM
Signal Format: Composite
Input Level: 1Vp-p
Input Impedance: 75 Ohms, unbalanced
Sync Polarity: Negative
Output Level: 1Vp-p
Output Impedance: 75 Ohms, unbalanced
Video Frequency Response: 10Hz – 10MHz

General

Power Requirement: AC 120V/60Hz
Power Consumption:

<

1W standby, 310 W maximum

(both channels driven)

Dimensions: (Product) (Shipping)
Width: 17-3/8" (442mm) 22" (560mm)
Height: 6-3/8" (163mm) 10-5/8" (270mm)
Depth: 15" (382mm) 18-5/16" (465mm)

(Product) (Shipping)

Weight: 23 lb (10.4kg) 27.3 lb (12.4kg)

Depth measurement includes knobs, buttons and terminal connections.
Height measurement includes feet and chassis.
All features and specifications are subject to change without notice.

Harman Kardon is a trademark of Harman International Industries, Incorporated, registered in the
United States and/or other countries. Designed to Entertain and The Bridge logo are trademarks
of Harman International Industries, Incorporated.

CEA is a registered trademark of the Consumer Electronics Association.

Dolby is a registered trademark of Dolby Laboratories.

iPod is a trademark of Apple Inc., registered in the U.S. and other
countries. iPhone and Shuffle are trademarks of Apple Inc.

XM and XM Ready are registered trademarks of XM Satellite Radio.

4

HK3490 harman/kardon

Please register your product at www.harmankardon.com. Note: You’ll need your serial number.
At the same time, you can choose to be notified about new products and/or special promotions.

HK3490

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visit www.harmankardon.com

HK 3490

7

FRONT-PANEL CONTROLS

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HK3490 harman/kardon

Power Indicator: This LED has two modes. When power is

turned off, the LED is amber to indicate that the receiver is plugged
in and ready to be turned on. When the receiver is turned on, the
LED turns white.

Power Switch: This electrical switch turns the receiver on for

playback, or leaves it in Standby mode for quick turn-on using the
remote control.

Phono/The Bridge Source Selector: Press this button to select

a turntable connected to the Phono Inputs as the source. Press it again
to select an iPod docked in the optional Harman Kardon The Bridge II
docking station as the source. Each additional press switches between
these two sources.

CD Source Selector: Press this button to select the device

connected to the CD Inputs as the source.

Video Source Selectors: Press any of these buttons to select

the device connected to the corresponding Audio and Video Inputs for
playback. Remember to turn on the source device, to connect the Video
Monitor Output to your video display and to turn on your video display
and select the correct Video Input.

NOTE: The Video 3 source device may be connected to either
the front- or rear-panel connectors. To select the desired device,
press the Video 3 Source Selector repeatedly to toggle between
the front and rear inputs.

Tape Source Selector: Press this button to select the device

connected to the Tape/CDR Audio Inputs as the source. If you are
making a recording using a three-head tape deck or another unit with
off-head playback, you will be able to monitor the recording as it is
being made.

Speaker 1/2: Press the left side of this button to enable the

HK 3490 to output audio to the speakers connected to the Speaker 1
Outputs, and press the right side of the button to enable the Speaker 2
Outputs. You may enable or disable both sets of speaker outputs
simultaneously. This feature is a convenient way of hearing audio in
more than one room at a time, although the same source material will
be played through both sets of speakers.

Tuning: Press either side of this button to tune a radio station. Tap the

button briefly to tune one frequency step at a time, or press and hold
the button to seek the next frequency with an acceptably strong signal.

Preset Scan: Press this button once to scan through the stations

you have previously programmed as presets. Each station will play for
five seconds before the tuner skips to the next preset station. Press the
button a second time to select the current station. If no presets have
been programmed, the 0 PRESET message will be displayed. When
listening to XM
information: channel name and number, category, artist and song title.

®

Radio, each press displays the current playback

Preset Stations: Press this button to select a preset radio station.

If no presets have been programmed, the 0 PRESET message will be
displayed. When listening to XM Radio, each press changes the preset
number within the current lettered bank.

Tuner Band: Press this button to select the tuner as the source, or

to select the AM (left side of button) or FM (right side of button) band.
Each press of the FM side of the button toggles between the FM and
XM bands.

FM Mode: This button toggles between Stereo and Mono modes

when an FM station is tuned. Mono mode may improve reception of
weaker signals. When listening to XM radio, each press of this button
changes the channel search mode as follows:

‹/›

• All Channel Search: The Tuning Buttons and the

the remote may be used to tune any channel.

‹/›

• Preset Search: The

change the lettered bank of presets.

• Category Search: The Tuning Buttons and the

remote may be used to tune a channel within the current category.

Buttons on the remote may be used to

‹/›

Buttons on

Buttons on the

Sleep: Press this button to activate the sleep timer, which shuts off the

receiver after a programmed period of time up to 90 minutes.

DSP Mode: Each press of this button switches the digital signal

®

processing mode as follows: Dolby
Speaker Reference, Stereo.

Virtual Speaker Wide, Dolby Virtual

Mute: Press this button to mute the HK 3490’s speaker and headphone

outputs temporarily. To end the muting, press this button or adjust the
volume. Muting is also canceled when the receiver is turned off.

Volume Control: Turn this knob to raise or lower the volume, which

will be shown in decibels (dB) in the Message Display.

Headphone Jack: Plug a 1/4" headphone plug into this jack for

private listening.

Bass Control: Turn the knob clockwise to boost low-frequency output

by up to 10dB, or counterclockwise to cut low-frequency output by up
to 10dB. Set the control to suit your taste and room acoustics.

Treble Control: Turn the knob clockwise to boost high-frequency

output by up to 10dB, or counterclockwise to cut high-frequency output
by up to 10dB. Set the control to suit your taste and room acoustics.

Balance Control: Turn the knob to adjust the relative volume of the

left and right channels, which affects imaging and can compensate for
room characteristics.

NOTE: To use the Bass, Treble or Balance Controls, gently press
the knob until it unlatches. When finished, press the knob again
to lock it.

Video 3 A/V Inputs: Connect a source component that will only be

used temporarily to these jacks, such as a camera or game console, or
connect an iPod using the supplied audio/video cable.

Message Display: Various messages appear in this display in

response to commands. In normal use, the Upper Line will display the
current source and audio input (analog or one of the digital audio
inputs). The Lower Line displays the current speaker group (if any are
active) and the DSP mode. Other messages may appear for some
sources, such as The Bridge docking station and the tuner.

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HK3490 harman/kardon

Power
Indicator

Power

Switch

CD Source
Selector

Tape Source
Selector

Message Display

Tuner
Band

FM Mode

Sleep

DSP Mode

Mute

Volume
Control

Phono/The Bridge
Source Selector

Video Source
Selectors

1 Speakers 2

Tuning

Preset Scan

Preset
Stations

Headphone
Jack

Bass
Control

Treble
Control

Video 3
A/V Inputs

Balance
Control

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

www.harmankardon.com.

8

HK3490 harman/kardon

REAR-PANEL CONNECTIONS

AM and FM Antenna Terminals: Connect the included AM and

FM antennas to their respective terminals for radio reception.

Video 1, Video 2 and Video 3 Audio/Video Inputs: These

jacks may be used to connect your video-capable source components
(e.g., VCR, DVD player, cable TV box) to the receiver.

NOTE: The Video 3 source has inputs on both the front and
rear panels of the HK 3490, and you may connect different
devices to each set of inputs. To select between the two sets
of inputs, press the Video 3 Source Selector repeatedly.

Video 1 Audio/Video Outputs: These jacks may be used to

connect your VCR or another recorder.

Video Monitor Output: If some of your sources use video

connections, connect the Video Monitor Output to the corresponding
input on your television or video display to view the sources. No video
signal will be available when an audio-only source input, such as CD
or Tape, is selected.

Remote Infrared (IR) Input and Output: When the remote

IR receiver on the front panel is blocked, such as when the HK 3490
is placed inside a cabinet, connect an optional IR receiver to the Remote
IR Input jack for use with the remote control. The Remote IR Output may
be connected to the Remote IR Input of a compatible source device
(or other product) to enable remote control through the HK 3490. When
several source devices are used, connect them in “daisy chain” fashion.

Update Port: This connection is for authorized service personnel only.

It is used with a proprietary device in the event that a software update
for the HK 3490 becomes available in the future. Do not make any
connections to it.

Reset Button: In the event that the HK 3490 operates erratically, a

system reset may restore proper functionality. Place the unit in Standby
mode by pressing the Power Switch so that the Power Indicator turns
amber. Then use a fine-point pen or other similar object to press the
Reset Button.

The Bridge/DMP Input: Connect the optional Harman Kardon

or docking station to this input for use with
your iPod, iPod touch or iPhone (not included). Make sure the receiver
is turned off (in Standby mode) when connecting The Bridge or
The Bridge II docking station.

XM Antenna Jack: Plug in an XM antenna module here. The XM

antenna module is purchased separately, and should specify that it is for
home use with an XM Ready product. You will need to subscribe to the
XM service, which is available separately, and activate the service for
your antenna module. (XM service is not available in Alaska and Hawaii.)

Coaxial and Optical Digital Audio Inputs: If a source has a

compatible digital audio output, connect it to one of these jacks for
improved audio performance. Use only one type of digital audio
connection for each source.

Switched AC Accessory Outlets: You may plug the AC power

cord of one source device into each of these outlets, and it will turn on
whenever you turn on the receiver. Do not use sources that consume
more than 100 watts of power per outlet.

Speaker 1 and 2 Outputs: Use two-conductor speaker wire to

connect each set of terminals to the correct speaker. Observe the
correct polarity (positive and negative connections). Always connect the
positive lead to the red or white terminal on the receiver and the red
terminal on the speaker. Connect the negative lead to the black terminal
on both the receiver and the speaker. Use the Speaker 1/2 Selectors
on the front panel or remote to select either or both pairs of speakers
for playback.

Subwoofer Outputs: If you have a powered subwoofer, connect

these jacks to the line-level inputs on the subwoofer. The same full­range signal is output through both jacks. Thus, you have the option
of connecting each jack to the line-level input on a separate subwoofer
or to use the full-range outputs to feed a remote room in a distributed­audio application. If you have only one subwoofer with a single line-level
input, connect it to the right Subwoofer Output on the HK 3490.

Subwoofer Trigger Outputs: Connect these outputs to a

compatible trigger input on the subwoofer connected to the Subwoofer
Output immediately to the right of the Trigger Output. Consult the
owner’s manual for the subwoofer to set its trigger input correctly, and
the subwoofer will automatically turn on or off when the HK 3490 is
turned on or off. In addition, the Trigger Outputs are used with the
Subwoofer Link Switches to conserve energy by powering off the
subwoofer’s amplifier when it is not needed. The Subwoofer Trigger
Outputs send a signal of 15 volts DC.

Subwoofer Link Switches: Each switch affects the subwoofer

connected to the jack immediately to the left of the switch. To use the
switch, first connect the corresponding Subwoofer Trigger Output to
a compatible trigger input on the subwoofer, and make sure the
subwoofer’s instructions are followed to activate its trigger input. When the
Link Switch is on, the HK 3490 will remove the trigger signal whenever
the corresponding pair of main speakers is not in use, thereby conserving
energy that would otherwise be used to maintain the subwoofer’s amplifier
in Standby mode. This feature is activated any time no signal is present at
the main speaker outputs, including when the Speaker 1/2 Switch turns
off both speaker pairs, when the HK 3490’s output is muted, or when the
headphones are plugged in. See Table A2 in the appendix for details.

Main-Amp Inputs and Preamp Outputs: These jacks are

normally connected directly to each other with an included jumper.
Some devices, such as equalizers and some loudspeaker systems,
require connection between the Preamp Outputs and Main-Amp
Inputs, in which case the jumpers should be removed and stored in a
safe place for future use. You may also remove the jumpers if you wish
to connect the Preamp Outputs to an external amplifier, or if you wish
to connect another device’s line-level output directly to the HK 3490’s
power amplifier for a special application.

AC Power Cord: After you have made all other connections, plug

the AC power cord into an unswitched outlet.

9

Tape Outputs: These jacks may be used to connect your CDR or

another audio-only recorder.

9

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HK3490 harman/kardon

Phono

AM Antenna

FM Antenna

CD
Inputs

Tape/CDR
Inputs

Tape/CDR
Outputs

Video 1
A/V
Inputs

Video 1
A/V
Outputs

Video 2/
DVD
Inputs

Video 3
A/V
Inputs

Video
Monitor
Output

Remote
IR
Input

Remote
IR
Output

Update
Port

Reset
Button

AC Power
Cord

Subwoofer
Trigger
Outputs

Subwoofer
Outputs

Subwoofer
Link
Switches

Preamp
Outputs

Main-Amp
Inputs

Speaker 1
Outputs

Speaker 2
Outputs

XM Antenna
Jack

The Bridge
DMP Connector

Switched AC
Accessory
Outlets

Digital
Audio Inputs

Main
Power
Switch

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

www.harmankardon.com.

11

CD and Tape Inputs: These jacks may be used to connect your

audio-only source components (e.g., CD player, tape deck). Do not
connect a turntable to these jacks unless you are using the turntable
with a phono preamp. When your recorder features three-head or
off-head playback, you may monitor a recording as it is being made.

Phono Inputs and Ground: Connect the outputs of your turntable

or tonearm to these jacks, and connect the ground wire from the
turntable to this Ground Connector to reduce system hum. Only moving­magnet (MM-type) cartridges are compatible with the Phono Inputs. If
your turntable is equipped with its own onboard phono preamp, you
may connect it to any of the HK 3490’s other audio inputs.

Main Power Switch: This mechanical switch turns the power supply

on or off. It is usually left turned on (push the rocker in at the top), and
cannot be turned on using the remote control. Turn this switch off when
connecting or disconnecting source devices or loudspeakers to prevent
any possibility of damage to components resulting from an unexpected
power surge.

REAR-PANEL CONNECTIONS

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HK3490 harman/kardon

11

HK3490 harman/kardon

REMOTE CONTROL FUNCTIONS

The HK 3490 remote is capable of controlling six devices, including the
HK 3490 itself. The remote is preprogrammed at the factory to operate
most Harman Kardon DVD, CD and CDR players. Each time you wish to
use the codes for any component, first press its Selector Button. This
changes the button functions to the appropriate codes.

Phono: Controls only the HK 3490 when a turntable is in use.
Video 1: Controls the Harman Kardon DMC 1000 digital media server.
Video 2 and 3: Controls DVD players. Each source uses a slightly

different code set. Test the remote on your Harman Kardon DVD player,
and refer to Table A3 in the appendix. Connect the DVD player to the
source inputs corresponding to the code set that correctly operates the
device.

Tape: Controls CD recorders.
CD: Controls CD players.
AM/FM: Controls the HK 3490 and its internal tuner only.
XM: Controls the HK 3490 and its internal tuner only.
The Bridge: When an optional Harman Kardon The Bridge or The

Bridge II docking station is connected and an iPod (not included) is
docked, this mode controls navigation and playback of materials stored
on the iPod.

The functions specific to the HK 3490 are always available: Main Power
On and Off, Speaker 1/2, source selection, Mute, Sleep, Dimmer and
the Volume Controls.

Any given button may have different functions, depending on which
component is being controlled. Some buttons are labeled with these
functions. For example, the Track Skip Buttons are labeled with the
transport control icons printed on the buttons themselves, and these
functions are active when a CD or DVD player is in use. The Preset
indications appear above these buttons, and those commands are
active when the HK 3490’s tuner is in use. See the appendix for
listings of the different functions for each type of component.

IR Transmitter Lens: As buttons are pressed on the remote,

infrared codes are emitted through this lens. Make sure it is pointing
toward the component being operated.

Power Off Button: Press this button to turn off the HK 3490 or

another device.

Power On Button: Press this button to turn on the HK 3490 or

another device.

Speaker 1/2: Press the Speaker 1 Button to enable the HK 3490 to

output audio to the speakers connected to the Speaker 1 Outputs, and
press the Speaker 2 Button to enable the Speaker 2 Outputs. You may
enable or disable both sets of speaker outputs simultaneously. This
feature is a convenient way of hearing audio in more than one room at
a time, although the same source material will be played through both
sets of speakers.

Source Selectors: Press one of these buttons to select a source

device, which is a component where a playback signal originates, e.g.,
DVD, CD or the tuner. This will also turn on the receiver and switch the
remote to the codes that operate the source device.

NOTE: The Video 3 source device may be connected to either
the front- or rear-panel connectors. To select the desired device,
press the Video 3 Source Selector repeatedly. The VIDEO 3
message indicates that the rear-panel inputs are active, and the
VIDEO F message indicates the front-panel inputs have
been selected.

FM Mode: This button toggles between Stereo and Mono modes

when an FM station is tuned. When XM Radio is in use, each press
of this button changes the search mode, which controls how the

‹/›

Buttons operate.

• Preset Search Mode: Each press of the

the lettered bank of preset stations. Each press of the
changes the numbered preset within the bank.

• Category Search Mode: Each press of the

to the next category of stations, e.g., Decades.

• All Channel Search Mode: The

⁄/¤

Buttons change the channel number.

‹/›

Buttons changes

‹/›

‹/›

Buttons do nothing. The

⁄/¤

Buttons

Buttons jumps

DSP Mode: Each press of this button switches the digital signal

processing mode as follows: Dolby Virtual Speaker Wide, Dolby Virtual
Speaker Reference, Stereo.

Auto Preset: The Auto Preset feature enables you to automatically set

presets for all available FM radio stations in your area with a single button
press. To start the process, make sure the FM tuner has been selected
as the source. Press and hold this button. The AUTO PRESET message
will appear as the HK 3490 tuner scans through all FM stations with
acceptable signal quality and programs them into the presets. If there are
fewer than 30 stations, the tuner will cycle through again, filling up the
higher preset slots with the same stations. The scan will stop when all
30 presets have been filled, or after two scans through the FM band.

Numeric Keys: Use these buttons to enter radio station frequencies

when using the tuner (after pressing the Direct Button, except for XM), or
to select station presets.

Direct: Press this button before using the Numeric Keys to directly

enter a radio station frequency. It is not necessary to press this button
before using the Numeric Keys to enter an XM Radio channel.

Clear: Press this button to clear a radio station frequency you have

started to enter.

Memory: After you have tuned a particular radio station, press this

button, then the Numeric Keys, to save that station as a radio preset.
When XM Radio is in use, programming presets is somewhat different.
First, tune to the desired channel. Then, press the Memory Button and

‹/›

the preset indication will flash. Use the
desired preset bank (A through E), and then use the

Buttons to select the

⁄/¤

Buttons

12

12

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HK3490 harman/kardon

IR Transmitter Lens

Speaker 1

Power On
Power Off

FM Mode

Direct

Memory

Navigation

Speaker 2

Source Selectors

Auto Preset
DSP Mode

Numeric Keys

Clear

Menu

OK

Preset Scan

Mute

Volume

Controls

Pause

Play

Fast Search

Record

Dimmer

Repeat

Disc Menu

Tuning

Preset Stations

Selectors/Track Skip

Stop

Sleep

A-B

NOTE: To make it easier to follow the

instructions throughout the manual that refer to
this illustration, a copy of this page may be
downloaded from the Product Support section
at www.harmankardon.com.

13

HK3490 harman/kardon

REMOTE CONTROL FUNCTIONS

to select a numbered location (1 through 8) within the bank. Press the
Memory Button to complete the process and let the HK 3490 return to
normal operation.

Menu: This button has no effect on the HK 3490, but is used with

some source devices to access the source’s setup menus.

Navigation (

in use, the
or the lettered bank of presets. As described above, press the FM Mode
Button to select a search mode. Use the
numbered preset within a bank when in Preset Search mode, or to
change the channel sequentially when in All Channel Search mode.
These buttons have no other effect on the HK 3490, but are used to
make selections within the on-screen menu system for some source
devices. The OK Button transmits the Random Play command when
used with CD players.

⁄/¤

‹/›

Buttons may be used to change the channel category

›

/‹/

) and OK Buttons: When XM Radio is

⁄/¤

Buttons to change the

Preset Scan: Press this button once to scan through the stations

you have previously programmed as presets. Each station will play for
five seconds before the tuner skips to the next preset station. Press the
button a second time to select the current station. If no presets have been
programmed, the 0 PRESET message will be displayed. When XM Radio
is in use, this button has nothing to do with preset stations. Instead, each
press of this button changes the information displayed on the front panel
as follows: channel name and number, channel category, artist name and
song title.

Button repeatedly until the PRESET SEARCH message appears in the

‹/›

Message Display, and use the
bank. Then use the Preset Stations Selectors to select the numbered
preset within the bank.

Buttons to change to the desired

Stop, Record, Pause and Play: These transport controls have no

effect on the receiver, but are used to control compatible Harman Kardon
DVD and CD players.

Fast Search: The Fast Search function is available with compatible

Harman Kardon DVD and CD players.

Dimmer: Press this button to partially or fully dim the front-panel display.
Repeat (V. Mode): This button has no effect on the HK 3490, but

issues the Repeat command when used with DVD and CD players. On
some remotes this button is labeled “V. Mode,” but it still issues the
Repeat command.

A-B (Source): This button has no effect on the HK 3490, but issues

the Repeat A-B command when used with DVD and CD players with
that feature. On some remotes, this button is labeled “Source,” but it
still issues the Repeat A-B command.

Sleep: Press this button to activate the sleep timer, which shuts off

the receiver after a programmed period of time up to 90 minutes.

Disc Menu: This button has no effect on the HK 3490, but is used

with some DVD players to access the DVD disc’s menus.

Volume Controls: Use this control to raise or lower the volume,

which will be shown in decibels (dB) in the Message Display.

Mute Button: Press this button to mute the HK 3490’s speaker and

headphone outputs temporarily. To end the muting, press this button or
adjust the volume. Muting is also canceled when the receiver is turned
off. When the Subwoofer Trigger Output is connected to the correct
input on the subwoofer, and the corresponding Subwoofer Link Switch
is on, muting the HK 3490 will remove the trigger signal, turning off
the subwoofer’s amplifier to conserve energy. When normal listening
resumes, the trigger signal will be reactivated, turning on the subwoofer.

Tuning: Use this control to tune a radio station. Tap one end of the

button briefly to tune one frequency step at a time, or press and hold it
to seek the next frequency with an acceptably strong signal. When XM
Radio is in use, the digitally tuned channels are always of acceptable
strength, and thus there is no seek function, although pressing and
holding the Tuning Buttons scans through the channels faster. When the
FM Mode Button has been used to activate Category Search Mode, the
Tuning Buttons will only tune channels within the current category. Press
the FM Mode Button until All Channel Search Mode has been selected
to tune any channel.

Preset Stations Selectors/Track Skip: Press these buttons

to select a preset radio station, or to change tracks or chapters on
compatible Harman Kardon DVD and CD players. XM presets are stored
in one of five lettered banks. To switch banks, press the FM Mode

14

12 3

+

Audio Connections

Left Right
Front (FL/FR)

Digital Audio Connections

Coaxial
Optical Input

Video Connections

Composite

14

HK3490 harman/kardon

CONNECTIONS

There are different types of audio and video connections used to
connect the receiver to the speakers and video display, and to connect
the source devices to the receiver. To make it easier to keep them all
straight, the Consumer Electronics Association has established a CEA
color-coding standard. Table 1 may be helpful to you as a reference
while you set up your system.

Table 1 – Connection Color Guide

®

Figure 2 – Binding-Post Speaker Terminals With Bare Wires

The HK 3490 features two sets of speaker connections, with each set
allowing connection of a left and right loudspeaker. This allows you to
place a second set of speakers in another room, or even outdoors,
when weather-resistant loudspeakers are used. You may play both sets
of speakers simultaneously, one set at a time or neither set when using
the headphones or making recordings. Use the Speaker 1/2 Buttons to
activate or deactivate each pair of speakers. It is not possible to select
different sources for each speaker pair.

Types of Connections

This section will briefly review different types of cables and connections
that you may use to set up your system.

Speaker Connections

Speaker cables carry an amplified signal from the receiver’s speaker
terminals to each loudspeaker. Speaker cables contain two wire
conductors, or leads, inside plastic insulation. The two conductors are
usually differentiated by using different colors, or stripes, or by adding a
ridge to the insulation. Sometimes the wires are different colors, one
being copper red and the other silver.

The differentiation is important because each speaker must be connected
to the receiver’s Speaker-Output terminals using two wires, one positive
(+) and one negative (–). This is called speaker polarity. It’s important
to maintain the proper polarity for all speakers in the system. If some
speakers have their negative terminals connected to the receiver’s
positive terminals, performance can suffer, especially for the low
frequencies.

Always connect the positive terminal on the loudspeaker, which is usually
colored red, to the positive terminal on the receiver, also colored red.
Similarly, always connect the black negative terminal on the speaker to
the black negative terminal on the receiver.

Subwoofer

The subwoofer is a specialized type of loudspeaker used to play only
the low frequencies (bass), which require much more power than the
other speaker channels. To obtain the best results, most speaker
manufacturers offer powered subwoofers, in which the speaker contains
its own amplifier on board. Usually, a line-level (nonamplified) connection
is made from the receiver’s Subwoofer Output to a corresponding jack
on the subwoofer, as shown in Figure 3, but sometimes the subwoofer
is connected to the receiver using the left and right speaker outputs,
then the left and right speakers are connected to terminals on the
subwoofer. The same full-range signal is output through both jacks.
Thus, you have the option of connecting each jack to the line-level input
on a separate subwoofer. If you have only one subwoofer with a single
line-level input, connect it to the right Subwoofer Output on the HK 3490.

Connect the Subwoofer Trigger Output for each subwoofer to the
corresponding trigger input on its amplifier. This enables the subwoofer to
turn on or off together with the HK 3490. To further conserve energy,
when the trigger connection is made, turn the Subwoofer Link Switch on
to turn the subwoofer off when the corresponding pair of main speakers
are not being used, such as during muting, when headphones are being
used, or when the main speakers are turned off using the Speaker 1/2
switch.

The HK 3490 uses binding-post speaker
terminals that can accept banana plugs
or bare-wire cables.

Banana plugs are simply plugged into the
hole in the middle of the terminal cap.
See Figure 1.

Figure 1– Binding-Post Speaker Terminals With Banana Plugs

Bare-wire cables are installed as follows (see Figure 2):

1. Unscrew the terminal cap until the pass-through hole in the collar

is revealed.

2. Insert the bare end of the wire into the hole.

3. Screw the cap back into place until the wire is held snugly.

L

R

Subwoofer

Figure 3 – Subwoofer

Connecting Source Devices to the HK 3490

The HK 3490 is designed to process audio and video input signals,
playing back the audio and displaying the video on a television or
monitor connected to it. These signals originate in what are known as
“source devices,” including your DVD player, CD player, DVR (digital
video recorder) or other recorder, tape deck, game console, cable or
satellite television box, or MP3 player. Although the tuner is built into the

15

A

Optical

Optical digital
audio cable

Coaxial

Coaxial digital

audio cable

15

HK3490 harman/kardon

CONNECTIONS

HK 3490, it also counts as a source, even though no external
connections are needed, other than the FM and AM antennas and
the XM module.

Separate connections are required for the audio and video portions
of the signal.

Audio Connections

There are two formats for audio connections: digital and analog. Digital
audio signals offer improved quality, free of distortion and with greater
detail and presence. The HK 3490 uses two types of digital audio
connections: coaxial and optical. Either type of digital audio connection
may be used for each source device, but never both simultaneously for
the same source. However, it’s alright to make both analog and digital
audio connections to the same source.

Digital Audio

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

Video Connections

Although some sources only produce an audio signal (e.g., CD player,
tape deck), many sources output both audio and video signals (e.g.,
DVD player, cable television box, HDTV tuner, satellite box, VCR, DVR).
In addition to the audio connection, make a video connection for each
of these sources.

The composite video jack is usually color-coded yellow, and looks like
an analog audio jack, although it is important never to confuse the two.
Do not plug a composite video cable into an analog audio jack, and
vice versa. Both the chrominance (color) and luminance (intensity)
components of the video signal are transmitted using a single cable.
See Figure 7.

Composite
video cable

Figure 7 – Composite Video

Composite video

Antennas

The HK 3490 uses separate terminals for the included FM and AM
antennas that provide proper reception for the tuner.

The FM antenna uses a 75-ohm F-connector. See Figure 8.

Figure 4 – Coaxial Digital Audio

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

Figure 5 – Optical Digital Audio

Analog Audio

Analog connections require two cables, one for the left channel (white)
and one for the right channel (red). These two cables are often attached
to each other for most of their length. See Figure 6. Most sources that
have digital audio jacks also have analog audio jacks, although some
older types of sources, such as tape decks, have only analog jacks. For
sources that are capable of both digital and analog audio, you may wish
to make both connections. If you wish to record materials from DVDs
or other copy-protected sources, you may only be able to do so using
analog connections. Remember to comply with all copyright laws if you
choose to make a copy for your own personal use.

nalog audio

cable (RCA)

Figure 6 – Analog Audio

L

R

Figure 8 – FM Antenna

The AM loop antenna needs to be assembled. Connect the two leads
to the spring terminals on the receiver. The AM antenna leads are
polarized, and it is important to color-match the leads and terminals
to maintain the proper polarity. See Figure 9.

Figure 9 – AM Antenna

To enjoy XM satellite radio, purchase an XM antenna module designed
for use with XM Ready devices and a subscription to the XM service.
We recommend the XM Mini-Tuner and Home Dock Bundle, available
at www.xmradio.com. The older Connect-and-Play module is also
compatible with the HK 3490, but it may no longer be available in
your area.

An XM Ready-compatible module uses the special connector on
the HK 3490’s rear panel that allows you to use the receiver’s tuner,
including its 40 preset station locations and remote control. Although
you may use a module with standard audio connections, which may
be indicated for “car and home use,” you will not be able to enjoy the
HK 3490’s ease of control.

16

HK 3490

FM

AM

XM

HK 3490

Right (Spkr 1) Right (Spkr 2) Left (Spkr 1)Left (Spkr 2)

16

HK3490 harman/kardon

INSTALLATION

You are now ready to connect your various components to your receiver.
Before beginning, make sure that all components, including the HK 3490,
are turned completely off and their power cords are unplugged. Don’t

plug in any of the power cords until you have finished making all
of your connections.

The receiver generates heat while it is on. Select a location that leaves
several inches of space on all sides of the receiver. It is preferable to
avoid completely enclosing the receiver inside a cabinet. It is also
preferable to place components on separate shelves rather than directly
on top of the receiver. Some surface finishes are delicate. Try to select
a location with a sturdy surface finish.

Step One – Connect the Speakers

If you have not yet done so, place your speakers in the listening room
as described in the Speaker Placement section.

Connect the front left and right loudspeakers to the Speaker 1 speaker
terminals on the HK 3490. Maintain the proper polarity by always
connecting the positive and negative terminals on each speaker to the
positive and negative terminals on the receiver. You may place a second
pair of speakers in another room, or in the same room for additional
sound power, connecting those speakers to the Speaker 2 Outputs
and maintaining polarity. Use the Speaker 1/2 Selector on the front
panel or remote to activate either or both pairs of speakers
simultaneously. See Figure 11.

muting, when headphones are being used, or when the speakers are
turned off using the Speaker 1/2 Switch. See Figure 12. Consult the
manufacturer’s guide for the subwoofer for additional information.

HK 3490

SUB

Figure 12 – Subwoofer Connection

Step Three – Connect the Antennas

Connect the FM and AM antennas to their terminals, and plug the XM
antenna module (not included) into its connector. The XM module is
purchased separately, and must be activated at the time you purchase
a subscription. See Figure 13.

Figure 11 – Speaker Connections

Step Two – Connect the Subwoofer

Connect the Subwoofer Outputs on the HK 3490 to the line-level inputs
on your subwoofer. The same full-range signal is output through both jacks.
Thus, you have the option of connecting each jack to the line-level input
on a separate subwoofer. If both pairs of main speaker outputs are in use in
different locations, you may install a separate subwoofer with each speaker
pair. If you have only one subwoofer with a single line-level input, connect
it to the right Subwoofer Output on the HK 3490. For optional auto turn­on/turn-off control over the subwoofer, connect the Subwoofer Trigger
Output for each subwoofer to the corresponding trigger input on its
amplifier. This enables the subwoofer to turn on or off together with the
HK 3490. To further conserve energy, when the trigger connection is made,
turn the Subwoofer Link Switch on to turn the subwoofer off when the
corresponding pair of main speakers is not being used, such as during

18

18

Figure 13 – Antenna Connections

Step Four – Connect the Source Components

Use the worksheets in the appendix to note which connections you will
use for each of your source devices.

For each source, select a source input (Video 1, Video 2, Video 3, etc.).
In Table A1 in the appendix, we recommend connecting certain types
of sources to certain source inputs to make it easier to use the remote
control.

The remote is preprogrammed to operate certain Harman Kardon
components, as shown in Table A1. However, you may connect any
component with analog audio and/or composite video outputs to
any source input on the HK 3490, with the exception of the Phono
Inputs, and you may use the original remote control supplied with
the component. It is not possible to reprogram the HK 3490 remote,
or to change the device type associated with any source input.

HK 3490

17

HK3490 harman/kardon

INSTALLATION

We recommend you follow the guidelines in Table A1 when connecting
various source components to the HK 3490. However, due to the
limitations in the design of the HK 3490 remote control, when using
source components manufactured by other brands, use the device’s
original remote control to operate it.

For each audio-only source, such as a CD player, connect the left and
right analog audio outputs of the source device to the corresponding
inputs on the HK 3490.

For sources that have a digital audio output, connect it to the corresponding
Optical or Coaxial Digital Audio Input on the HK 3490. You may connect
a source’s analog and digital audio outputs at the same time; only one
connection is active at a time. To select the digital audio input, press and
hold the front-panel Source Selector and simultaneously press the T-Mon
Selector to change the audio input as follows: Analog, Optical, Coaxial.

For audio/video devices, such as a cable television set-top box, in addition
to the audio connections, connect the composite video output on the
set-top box to the corresponding video input jack on the HK 3490.

Phono (Turntable)

Connect the audio outputs of your turntable or tonearm with a moving­magnet (MM-type) cartridge to the Phono Inputs, and connect the
ground wire to the Ground Terminal immediately below the Phono Inputs
(not the AM Antenna Ground Terminal). If the cartridge is a moving-coil
(MC-type) cartridge, it requires a separate phono preamp (available at
your local electronics store) before you connect it to the Phono Inputs.
See Figure 14.

Tape

The Tape source is used for audio recorders, such as a CDR, MiniDisc
or cassette deck.

Connect the output jacks on your recorder to the Tape/CDR Audio
Input jacks on the HK 3490, and the input jacks on your recorder to
the Tape/CDR Output jacks on the HK 3490. See Figure 16.

Figure 16 – Tape/CDR Audio Inputs and Outputs

To listen to the Tape/CDR source, press the Tape Mon Button. The upper
line of the Message Display will indicate the last-selected source, which is
always available at the Tape/CDR Outputs for recording. The T-Mon message
will flash in the lower line, indicating that the HK 3490 is playing the signal
present at the Tape/CDR inputs. When the recorder is in Playback-Only
mode, this signal will originate in the recorder, e.g., when playing a
commercial CD. If the recorder is in recording mode and has off-head
playback capability, you may monitor recording of the source displayed
in the upper line. If the recorder does not have off-head playback, you will
not be able to monitor the recording. To hear the original source, press the
Tape Mon Button to stop monitoring the recording.

NOTE: To make recordings, insert blank media in the recording
device and set it in Recording mode. The fact that a signal
is always available at the Tape/CDR Outputs doesn’t mean
recording is taking place if the recorder is not set to record.

HK 3490

Figure 14 – Phono Inputs and Ground

If your turntable has an MM-type cartridge and a built-in phono preamp,

do not

connect it to the Phono Inputs. Use one of the other available

audio input sources on the HK 3490.

Compact Disc (CD) Player

Connect the analog audio outputs of your CD player (or another audio­only device) to the CD Audio Inputs. See Figure 15.

HK 3490

Figure 15 – CD Audio Inputs

19

Video 1 Source

Since this source includes audio and video recording output jacks, it is
best suited to a video recorder, such as your VCR or DVR, even though
the remote codes are programmed to operate the DMC 1000. Simply
use your video recorder’s original remote.

Connect your recorder to the Video 1 Audio Inputs and Outputs. Then
connect the recorder to the Video 1 Composite Video Input and Output.
See Figure 17.

HK 3490

Figure 17 – Video 1 A/ V Inputs and Outputs

Remember to connect the audio and video

Input

recorder to the Video 1

input

and video

jacks on your recorder to the Video 1

jacks on the HK 3490, and the audio

on the HK 3490.

output

jacks on your

Output

jacks

19

HK 3490

Top Leaders

HK 3490

18

HK3490 harman/kardon

INSTALLATION

Video 2 Source

The Video 2 source is used only for playback. Since the remote is
preprogrammed to operate a Harman Kardon DVD player when the
Video 2 source is selected, we recommend that you connect a DVD
player to the Video 2 Inputs.

You may have observed that the HK 3490 does not feature surround
sound decoding, other than Dolby Virtual Speaker. If you prefer the
complete home theater experience, you may wish to consider
purchasing a full-featured Harman Kardon AVR Series audio/video
receiver. However, we hope you will find that using a DVD player with
the HK 3490 in smaller settings, such as a bedroom or den, surpasses
the audio performance of most televisions, including those with onboard
stereo speakers.

Connect the left and right analog audio outputs of the DVD player to
the Video 2 Audio Inputs on the HK 3490. Then connect the composite
video output of the DVD player, usually colored yellow, to the Video 2
Video Input. See Figure 18.

Figure 19 – Front- and Rear-Panel Video 3 A/ V Inputs

To connect an iPod to the Video 3 Inputs, insert the 1/8" mini plug on
the A/ V cable included with the HK 3490 into the headphone jack of
the iPod. Insert the left and right analog audio plugs on the other end of
the A/ V cable into the Video 3 Audio Inputs on the front of the receiver.
If the iPod is capable of playing videos or displaying images, insert the
composite video plug of the A/ V cable into the Video 3 Video Input.

HK 3490

Figure 18 – Video 2 Audio and Video Inputs

NOTE: If you receive your television programming using your
TV with an antenna or direct cable connection, connect the TV’s
analog audio outputs (if available) to the Video 2 Analog Audio
Inputs. Do not connect any video output on the television set to
any Video Input on the receiver. See Step Five for information on
connecting the receiver’s Video Monitor Outputs to the television.

Video 3 Source

The Video 3 source is used only for playback.The Video 3 source has
two sets of input jacks, one located on the HK 3490’s rear panel and
one set on the front panel. If you wish to connect a video device more
or less permanently, you may prefer to connect it to the rear-panel
inputs for a neater appearance. You may prefer to reserve the front­panel inputs for devices connected on a temporary basis, such as an
iPod (not included), a camcorder, a game console, or another type of
media player with analog audio and/or video outputs.

You may connect devices to both the front- and rear-panel inputs
simultaneously. To select either device, press the Video 3 Source Selector
on the HK 3490’s front panel or remote repeatedly. When VIDEO 3
appears on the front panel of the HK 3490, the rear-panel inputs are
active. When VIDEO F appears, the front-panel inputs are active.

Connect the left and right analog audio outputs of your device to the
corresponding Video 3 Inputs on either the front or rear panel, and
if available, connect the composite video output of the device to the
Video 3 Video Input on the same panel. See Figure 19.

NOTE: The iPod classic, iPod touch and iPhone require a special
cable (not included) for video playback through the HK 3490.
The cable features a dock receptacle at one end, and conventional
A/V plugs at the other end that may be connected to the
HK 3490 as described above. Visit www.apple.com for more
information about the cable.

When the front-panel inputs and tone controls are not in use, place the
supplied covers over them for a cleaner appearance by snapping the
covers in place. To remove the covers, gently press on the left side of
each cover so that it pivots out.

Since the remote is preprogrammed to operate a Harman Kardon DVD
player when the Video 3 source has been selected, use the source
device’s original remote to control other components, or operate an
iPod using its own controls.

Docking Station

With the optional The Bridge II docking station, you can listen to audio
or view videos stored on your iPod, iPod touch or iPhone (not included),
use your HK 3490 remote control to operate the iPod, and even charge
the iPod while it’s docked in The Bridge II docking station. Simply plug
the proprietary cable from The Bridge II unit into the special connector
on the rear of the HK 3490. See Figure 20. Refer to the owner’s
manual for The Bridge II model for more information.

Figure 20 – The Bridge II Connection

HK 3490

HK 3490

HK 3490

HK 3490

19

HK3490 harman/kardon

INSTALLATION

Step Five – Connect the Video Display

Only video connections should be made between the receiver and
your video display (TV), unless your TV is the source for your television
programming (see note below Figure 18).

To view video or images played by your source devices, connect the
Video Monitor Output of the HK 3490 to a Composite Video Input on
your television or video display. See Figure 21. Consult the manual for
your TV so that you understand how to select the correct video input.

Figure 21 – Video Monitor Output

Step Six – Connect the Remote IR Input and
Output (Optional)

The HK 3490 is equipped with a Remote IR Input and a Remote IR
Output to facilitate use of your system with a remote control in a variety
of situations.

When the HK 3490 is placed in such a way that aiming the remote at
the front-panel IR sensor is difficult, such as inside a cabinet or facing
away from the listener, you may connect an external IR receiver, such
as the optional Harman Kardon HE 1000, to the Remote IR Input jack.

Step Seven – Connect Optional External
Equipment

If you wish to use the HK 3490 with an external power amplifier,
remove the jumpers connecting the Preamp Outputs and Main-Amp
Inputs. Store the jumpers in a safe place in case they are needed in the
future. Connect the left and right Preamp Outputs of the HK 3490 to
the analog audio inputs on the external power amplifier. See Figure 23.

Figure 23 – Preamp Outputs and Main-Amp Inputs

You may adjust the Volume and Tone Controls using the HK 3490’s
front panel or remote (volume only).

If you wish to install an external processor, such as an equalizer, connect
it to the Preamp Outputs and Main-Amp Inputs. Remove the jumpers
and store them in a safe place. Connect the HK 3490’s Preamp Outputs
to the processor’s analog audio inputs, and then connect the processor’s
analog audio outputs to the Main-Amp Inputs on the HK 3490.

Alternatively, you may connect the external processor to the HK 3490’s
Tape Monitor Loop. See Figure 16.

Step Eight – Plug In AC Power

If any of your source devices are equipped with a compatible Remote IR
Input, use a 1/8" mini-plug interconnect cable (not included) to connect
the HK 3490’s Remote IR Output to the source device’s Remote IR
Input, which will pass any applicable remote signals transmitted through
the HK 3490 to the source device. This enables you to control your
sources even when the HK 3490 itself is controlled via an external
IR receiver.

To control more than one source device using the Remote IR Output,
connect all sources in “daisy chain” fashion, with the HK 3490’s Remote
IR Output connected to the first device’s Remote IR Input, that device’s
Remote IR Output connected to the next device’s Remote IR Input, and
so forth. See Figure 22.

Figure 22 – Remote IR Input and Output

NOTE: Not all remote-controllable devices are equipped with
compatible IR inputs and outputs. Check with the manufacturer
of the source device for more information on the type of IR
signal expected. The HK 3490 will output a “stripped carrier”
IR signal.

Having made all of your wiring connections, it is now time to plug each
component’s AC power cord into a working outlet.

You may plug two devices into the AC Switched Accessory Outlets on
the rear of the HK 3490. See Figure 24. Make sure each device draws
no more than 100 watts. The devices should have their mechanical or
master power switches turned on, and they will power on any time the
HK 3490 is turned on.

Figure 24 – AC Switched Accessory Outlets

Step Nine – Insert Batteries in Remote

The HK 3490 remote control uses four AAA batteries, which are included.

To remove the battery cover located on the back of the remote,
squeeze the tab and lift the cover.

Insert the batteries as shown in the diagram, making sure to observe
the correct polarity. See Figure 25.

21

20

HK3490 harman/kardon

INSTALLATION

Figure 25 – Remote Battery Compartment

When using the remote, point the lens toward the front panel of
the HK 3490. Make sure no objects, such as furniture, are blocking
the remote’s path to the receiver. Bright lights, fluorescent lights and
plasma video displays may interfere with the remote’s functioning.
The remote has a range of about 20 feet, depending on the lighting
conditions. It may be used at an angle of up to 30 degrees to either
side of the HK 3490.

If the remote seems to operate intermittently, then make sure the batteries
have been inserted correctly, or replace the batteries with fresh ones.

Step Ten – Turn On the HK 3490

Place the HK 3490 in Standby mode by turning on the Main Power Switch
on the rear panel. The Power Indicator will turn amber. The HK 3490 may

be turned on from Standby mode by pressing the Power Switch or any
Source Selector on either the front panel or the remote. See Figures 26
and 27.

Figure 26 – Front-Panel Power Switch

Figure 27 – Remote Control Power Switch

22

22

21

HK3490 harman/kardon

OPERATION

Now that you have installed your system components, you are ready
to begin enjoying your new audio system.

Turning On the HK 3490

After you plug the power cord into an AC outlet and turn on the Main Power
Switch on the rear panel, the Power Indicator should light up in amber. This
indicates that the HK 3490 is in Standby mode and is ready to be turned
on. See Figure 26.

The HK 3490 may be turned on by pressing the Power Switch or any
Source Selector on the front panel or the remote. See Figures 26 and 27.

The Power Indicator will turn white to indicate that the HK 3490 is on.
If the PROTECT message appears in the Message Display, unplug the
receiver from AC power and check all of your wires and connections.
Make sure no speaker wires are shorting out by touching each other,
and that there are no breaks in the insulation covering any of the speaker
wires, interconnects or the power cord. If the PROTECT message still
appears when you plug in the HK 3490 and try to turn it on again,
bring the receiver to an authorized Harman Kardon service center for
assistance.

To turn the receiver off, press the Power Switch on the front panel,
or press the Power Off Button on the remote. When the HK 3490 is
left unplugged, any settings you have programmed, including system
configuration and preset radio stations, will be preserved indefinitely.

Volume Control

The volume may be adjusted either by turning the knob on the front
panel (clockwise to increase volume or counterclockwise to decrease
volume), or by pressing the Volume Control Buttons on the remote. See
Figure 28. The volume is displayed as a negative number of decibels
(dB) below the 0dB reference point. Unlike some volume controls on
other products, 0dB is the maximum volume for the HK 3490. Although
it’s physically possible to turn the volume to a higher level, doing so may
damage your hearing and your speakers. For certain more-dynamic
audio materials, even 0dB may be too high, allowing for damage to
equipment.

in use and the Subwoofer Link Switch is on, muting will turn off the
subwoofer’s amplifier to conserve energy. The MUTE message will flash
in the display as a reminder. To restore normal audio, either press the
Mute Button again, or adjust the volume. Turning off the HK 3490 will
also end muting.

Figure 29 – Mute Buttons

Sleep Timer

You may program the HK 3490 to play for up to 90 minutes and then
turn off automatically using the sleep timer.

Press the Sleep Button on the front panel or remote, and the time until
turn-off will be displayed. Each additional press of the Sleep Button will
reduce the time until turn-off by 10 minutes, until the OFF setting is
reached, which disables the sleep timer. See Figures 30 and 31.

Figure 30 – Front-Panel Sleep Button Figure 31 – Remote Control Sleep Button

When the sleep timer has been set, the front-panel display will
automatically dim to half-brightness. If you press any button on the
remote or front panel, the display will return to full-brightness. The
display will dim again several seconds after your last command.

If you press the Sleep Button after the timer has been set, the remaining
time until turn-off will be displayed. You may press the Sleep Button to
change the time until turn-off. Pressing and holding the Sleep Button will
disable the sleep timer, and the SLEEP OFF message will appear.

Tone Controls

You may boost or cut either the treble or the bass frequencies by up
to 10dB.

Figure 28 – Volume Controls

The HK 3490 is designed to reproduce audio with a minimum amount
of distortion. This clarity may lead you to believe that your hearing and
the equipment can handle higher volumes. We urge caution with regard
to volume levels.

Mute Function

To temporarily mute all speakers and the headphones, press the Mute
Button on the front panel or remote. See Figure 29. Any recording in
progress will not be affected. If the Subwoofer Trigger Outputs are

The Bass and Treble Tone Controls may be adjusted using the knobs on
the front panel. Remove the front-panel covers if necessary, then gently
press the desired control knob until it unlatches and pops out. Turn the
appropriate knob counterclockwise to reduce the levels of the low
frequencies (Bass Control) or the high frequencies (Treble Control), and
turn it clockwise to increase the levels for the low or high frequencies.
See Figure 32.

Figure 32 – Tone Controls

You may also adjust the balance to compensate for speaker placement
or the acoustic characteristics of your listening room. Ideally, the audio

23

22

HK3490 harman/kardon

OPERATION

should be heard most clearly at a point exactly midway between the left
and right speakers, unless the artist has mixed the recording in a way
that pans sounds to one side or the other. If your speakers are not
placed the same distance from the listening position, or if your room has
other unusual characteristics, gently press the Balance Control knob until
it unlatches and pops out. Then turn it counterclockwise to move the
sound toward the left speaker or clockwise to move the sound toward
the right speaker. See Figure 33.

Figure 33 – Balance Control

The Balance Control reduces the level of the speaker opposite the
pointer. For example, turning the knob from the midpoint toward “R”
reduces the level of the left speaker, leaving the right speaker unaffected.
If two pairs of speakers are connected to the HK 3490, then both will
be affected.

IMPORTANT NOTE: Do not attempt to install the front-panel
covers with the Tone and Balance Control knobs in the unlatched
position. Gently press each knob until it latches. When locked,
the controls cannot be adjusted, preventing inadvertent changes
to your desired settings.

Headphones

Plug the 1/4" plug on a pair of headphones into the headphone jack on
the front of the receiver for private listening. See Figure 34.

Figure 34 – Headphone Jack

Speaker 1/2

The HK 3490 may be used with up to two pairs of speakers for
additional sound power in the main listening room or if you wish to
place the second pair of speakers in another room, or even outdoors
(when you select weather-resistant loudspeakers). Select each pair of
speakers by pressing its associated button on either the front panel or
remote. See Figure 35.

Figure 35 – Speaker 1/2 Buttons

Press the button a second time to deactivate that pair of speakers. You
may activate both speaker pairs simultaneously, or deactivate both pairs
for private listening through the headphones. When either of the speaker
pairs are deactivated, if the corresponding Subwoofer Trigger Output is
connected to the subwoofer and the corresponding Subwoofer Link

Switch is on, the trigger signal will be deactivated, turning off the
subwoofer amplifier and conserving energy when the subwoofer is
not needed.

Source Selection

Select a source device connected to the HK 3490 for playback by
pressing its associated button on the front panel or remote control.
See Figure 36.

Figure 36 – Source Selectors

To enjoy video sources, make sure to connect the device’s composite
video output to the correct Video Input on the HK 3490. In addition,
connect the HK 3490’s Video Monitor Output to an input on your
television or video display.

To select whether the source will use its analog audio input or one of
the digital audio inputs, press and hold the front-panel Source Selector
and simultaneously tap the front-panel T-Mon Button repeatedly until the
desired input appears in the Message Display. Audio input selection
requires use of the front-panel controls and cannot be selected using
the remote control.

To select a device connected to either the front- or rear-panel Video 3
Inputs, press the front-panel or remote Video 3 Source Selector
repeatedly to toggle between the front- and rear-panel Video 3 Inputs,
as indicated in the front-panel display. When the front-panel inputs are
not in use, you may snap the supplied cover over them. Remove the
cover by pressing on the left side until it pivots outward.

If you have connected a three-head tape deck to the Tape/CDR Inputs,
you may monitor a recording while it is being made so that you can
confirm that the correct program material is being recorded and make any
necessary adjustments to the recording level. Press the T-Mon Button on
the front panel to hear playback from the tape deck’s playback head.
When the recording is being monitored, the T-MON message will flash.
Press the T-Mon Button again to hear the original source.

NOTES:

• The HK 3490 is not an audio/video surround sound receiver.
It is only capable of playing source programs in one- or two­channel formats, and any information encoded in additional
channels will be lost. The HK 3490 cannot decode digital
surround-sound programs. If you have connected the analog
audio and composite video outputs of a DVD player to the
HK 3490, remember to select two-channel audio in the DVD
player and disc menus. However, you may press the DSP
Surround Button to select a Dolby Virtual Surround mode
(Reference or Wide) to expand the presentation of the sound
field even though only two main loudspeakers are in use.

23

HK3490 harman/kardon

OPERATION

• The HK 3490 does not switch the last-selected video source
when an audio-only source, such as Phono, CD or Tape/CDR,
is selected subsequently. It is not possible to view video while
listening to an audio-only source.

Using the Tuner (AM, FM and XM Modes)

The HK 3490’s built-in tuner may be selected in one of two ways
(see Figure 37):

1. Press the front-panel AM or FM Button. The front-panel FM Button
toggles between the FM and XM bands.

2. Press the AM, FM or XM Button on the remote.

Figure 38 – Tuning a Station

When an FM station has been tuned, pressing the FM Mode Button will
switch between stereo and mono tuning, which may improve reception
of weaker stations. See Figure 39.

Figure 37 – Tuner Input Selection

Radio stations may be selected in one of five ways (see Figures 38– 40):

1. If you know the frequency number, enter it directly by first pressing
the Direct Button on the remote, and then using the Numeric Keys. It
is not necessary to press the Direct Button when XM Radio is in use.

2. After you have programmed preset stations (see below), either enter
the preset number (1 through 30) using the remote or use the front­panel Preset Stations Button to scroll through the list of presets.
When XM Radio is in use, first press the FM Mode Button repeatedly

‹/›

to select Preset Search mode. Then use the

Buttons to select
a lettered bank of presets. To select a numbered preset within a
bank, make sure the HK 3490 is in Preset Search mode, then use

⁄/¤

the Numeric Keys, the

Buttons or the Preset Stations Buttons.

3. In Auto Tuning mode, press and hold the Tuning Buttons (front-panel
or remote) to scan in the chosen direction until a station with
acceptable signal strength is detected.

4. In Manual Tuning mode, with each press of the Tuning Buttons the
HK 3490 will tune the next frequency increment (0.1MHz for FM,
or 10kHz for AM) in the selected direction.

NOTE: When XM Radio is in use, there are no auto or manual

⁄/¤

tuning modes. Use the Tuning Button or

Buttons (only
when in All Channel Search mode) to select a channel. Press
and hold the button to search faster.

Figure 39 – FM Mode Button

To store a station in one of the 30 AM/FM presets (see Figure 40):

1. Tune the desired station.

2. Press the Memory Button on the remote.

3. Use the Numeric Keys to enter the desired preset number.

To clear a station from the preset memory:

1. Tune the preset station using any of the methods described above.

2. Press the Memory Button.

3. Within five seconds, press the Clear Button.

5. Press the Preset Scan Button on the front panel or remote to scan
through the previously programmed preset stations. The tuner will
pause for five seconds at each frequency before tuning to the next
preset. Press the Preset Scan Button again to select the current
station and stop scanning. When XM Radio is in use, this button is
used to change the display as follows: channel name and number,
category, artist and song title.

Figure 40 – Programming Presets

When XM Radio is in use, programming presets is somewhat different.

1. Tune to the desired channel.

2. Press the Memory Button on the remote.

3. Use the ‹/›Buttons to select the desired preset bank (A through E).

4. Use the

⁄/¤

Buttons to select a numbered location (1 through 8).

25

24

HK3490 harman/kardon

OPERATION

5. Press the Memory Button on the remote to complete the process
and let the HK 3490 return to normal operation.

To delete an XM Radio preset, tune to the preset station and press the
Clear Button. To delete all XM Radio presets in all banks, press and hold
the Clear Button until the ALL DELETED message appears. Table 2 may
be helpful to you as a reference while using the XM Radio tuner.

Table 2 – Using the XM Radio Tuner

XM Radio Function Remote Control Key Front-Panel Button

Toggle Search Modes FM Mode FM Mode

Scroll Preset Numbers (1–8)

Channel Search

Display Mode Preset Scan Preset Scan

Exit All Channel Search

Changes Category

Changes Preset Group

Enter/OK OK N/A

Preset Memory Mode Memory N/A

Clear Preset Memory Mode Clear N/A

Clear All Preset Memories Press and Hold Clear N/A

Enter Numeric Numbers 0–9 Numeric Keys N/A

Preset Up/Up Arrow (⁄) Preset Up

‹/›

(¤)

Preset Down

) N/A

Preset Down/Down Arrow
Tuning Up Tuning Up
Tuning Down Tuning Down

Left/Right Arrow (

Auto Preset (FM Only)

You may automatically program all FM radio stations in your area that
are received with acceptable signal strength into the HK 3490’s presets.
Press and hold the Auto Preset Button until the Memory and Preset
Indicators flash in the front-panel display. The tuner will automatically
scan through the entire FM band, entering all stations with acceptable
signal strength into the presets until either all 30 presets have been
filled, or the tuner has scanned the band twice.

In normal operation, information from the iPod will appear in the HK 3490’s
Message Display. While a track is playing, its title will scroll once on the
upper line, and the elapsed and remaining track times will appear on the
lower line. While navigating the iPod, the menu title or current setting will
appear on the upper line, and the current menu line or setting option will
appear on the lower line.

Table 3 summarizes the controls available when The Bridge II unit is in use.

Table 3 – Using The Bridge II

iPod Function Remote Control Key Front Panel-Button

Play Play (›) Preset Scan
Pause Pause ( || ) Preset Scan
Menu Menu FM Mode
Select OK Preset Scan
Scroll Reverse Up Arrow (⁄) Preset Up
Scroll Forward Down Arrow (¤) Preset Down

››

Forward Search/Next Track Right Arrow (
Reverse Search/Previous Track Left Arrow (

Switch between normal operation Press and hold Menu Press and hold
and iPod Manual mode FM Mode Button

) Tuning Up

l

‹‹

) Tuning Down

l

When the HK 3490 is in Standby mode, the iPod is not charged.

It is not possible to view videos or still images stored on the iPod.

To access the full functions of the iPod, press and hold the Menu Button
(FM Mode Button on front panel) to switch it to Manual mode. You may
navigate the iPod using the HK 3490 remote while viewing its menus on
the iPod screen. Manual mode allows access to functions such as Repeat
and Shuffle. Although the audio portion of video content may be played,
it will not be possible to view the content on a video display connected
to the HK 3490. To return to normal operation, press and hold the Menu
Button again until the check mark appears on the screen of the iPod.

Recording

NOTE: If there are a large number of FM stations in your area,

Auto Preset will overwrite any presets you programmed previously.
Stations with exceptionally strong signals may be programmed
into more than one preset.

Using Docking Station

The Bridge II docking station is an optional unit that may be used with a
compatible iPod, iPod touch or iPhone (not included). When The Bridge II
docking station is connected to its proprietary input on the HK 3490
and the iPod is docked, you may play the audio materials on your iPod
through your high-quality audio system, operate the iPod using the HK 3490
remote or the HK 3490’s front-panel controls, and charge the iPod.

Either press the front-panel Phono Selector repeatedly until the
DMP/THE BRIDGE IS CONNECTED message scrolls across the front
panel, or press The Bridge Button on the remote to select The Bridge II
docking station as the input source.

26

Two-channel analog audio signals, as well as composite video signals,
are normally available at the appropriate recording outputs. Thus, to
make a recording, you need only make sure to connect your audio
or video recorder to the appropriate output jacks, as described in the
Installation section, insert blank media and make sure the recorder is
turned on and recording while the source is playing.

You may monitor your recording if your recorder has separate record
and playback heads. Press the front-panel T-Mon Button to monitor the
recording using the playback head, indicated by the T-MON message
flashing. This will not affect the recording being made from the original
source. To hear the original source again, press the T-Mon Button again.

If your recorder does not have off-head playback, then you will not hear
anything when you press the T-Mon Button, unless the recorder is being
used for playback.

25

HK3490 harman/kardon

OPERATION

NOTE: Please make certain that you are aware of any copyright
restrictions on any material you record. Unauthorized duplication
of copyrighted materials is prohibited by federal law.

Dim Function

Some people find the front-panel messages distracting and would prefer
to dim them or turn them off altogether.

To dim the display, press the Dim Button on the front panel or remote.
Each button press will cycle through the three settings of:

VFD FULL: Normal brightness

VFD HALF: Display is dimmed but still visible; the light inside the

volume knob goes dark

VFD OFF: Display goes completely dark except for Power Indicator
to remind you that the receiver is turned on

NOTE: When the remote is in the device mode for either the
Video 1 or Video 2 source, the Dimmer Button on the remote
will only affect the source device (if compatible), and will not
affect the HK 3490.

Processor Reset

If you wish to fully reset the HK 3490 to its factory defaults, or if it
behaves erratically after a power surge, first turn the Master Power
Switch off and unplug the AC power cord for at least three minutes.
Plug the cord back in and turn the receiver back on. If this doesn’t
help, you may want to try a system reset.

NOTE: A system reset erases all user configurations, including tuner
presets. After a reset, you will need to reenter all of these settings.

Place the receiver in Standby mode by pressing the Power Switch so
that the Power Indicator turns amber. Simultaneously press and hold the
front-panel Preset Scan and Mute Buttons for at least five seconds until
the software version number, followed by the RESET message, appears
in the display.

The unit will return to Standby mode, and you may power it on.

You may reset the HK 3490 by using a sharp object to press the rear­panel Reset Button. This method does not erase user configurations.

If the receiver still does not function correctly after a processor reset,
contact an authorized Harman Kardon service center for assistance.
Service centers may be located by visiting www.harmankardon.com.

Memory

If the HK 3490 is unplugged or experiences a power outage, it will
retain user settings indefinitely.

26

HK3490 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 there’s no • Intermittent input connections • Make certain that all input and speaker connections
sound or picture are secure

• Mute is on • Press Mute Button

• Volume Control is down • Turn up Volume Control

• Desired source not selected • Press correct Source Selector

• Speakers deactivated • Press Speaker 1 or Speaker 2 Button

• Headphones are in use • Unplug headphones

• Jumper pins between Preamp Outputs • Replace jumper pins or, if external amplifier
and Main-Amp Inputs were removed is in use, make sure it is turned on

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

Unit does not respond to • Weak batteries in remote • Change remote batteries
remote commands • Remote sensor is obscured • Make certain front-panel sensor is visible to remote

or connect an optional remote sensor

Intermittent buzzing in tuner • Local interference • Move unit or antenna away from computers, fluorescent

lights, motors or other electrical appliances

Audio sources sound distorted • CD player or other audio device • Only plug a device into the Phono Inputs if it is a

incorrectly plugged into Phono Inputs turntable with a moving-magnet cartridge, or if it is a

turntable with a moving-coil cartridge with a phono preamp

• Turntable not plugged into Phono Inputs • Do not use a turntable with any inputs other than the Phono

Inputs, unless it has a moving-magnet-type cartridge and
includes a phono preamp

No video image • Source device’s video output not • Connect the source’s composite video output to

connected to HK 3490 the correct video input on the HK 3490

• Wrong source selected • Press the correct Source Selector on the HK 3490

• Video Monitor Output not connected • Connect the HK 3490’s Video Monitor Output to a composite

to display video input on your television or video display

• Wrong video input on video • Consult the manual for your television for instructions on

display selected selecting the correct video input

• Audio-only source selected • It is not possible to view video while listening to the

Phono, Tape/CDR or CD sources or to the tuner

In addition to the items shown above, additional information on troubleshooting possible problems with your HK 3490, or on installation-related issues,
may be found in the list of “Frequently Asked Questions,” which is located in the Product Support section at www.harmankardon.com.

Processor Reset

If you wish to fully reset the HK 3490 to its factory defaults, or if it behaves erratically after a power surge, first turn the
Master Power Switch off and unplug the AC power cord for at least three minutes. Plug the cord back in and turn the
receiver back on. If this doesn’t help, you may want to try a system reset.

NOTE: A system reset erases all user configuratio ns, including tuner presets. After a reset, you will need to reenter all of
these settings.

Place the receiver in Standby mode by pressing the Power Switch so that the Power Indicator turns amber. Simultaneously
press and hold the front-panel Preset Scan and Mute Buttons for at least five seconds until the software version number,
followed by the RESET message, appear in the display. The unit will return to Standby mode, and you may power it on.

Memory

28

If the HK 3490 is unplugged or experiences a power outage, it will retain user settings indefinitely.

27

HK3490 harman/kardon

28

HK3490 harman/kardon

HK3490 DISASSEMBLY PROCEDURE

1 TOP-CABINET (21) REMOVAL

1. Remove 13 screws (S1) and then remove the Top-cabinet.
2 FRONT PANEL ASS’Y REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Disconnect the lead wire (BN22-11P) on the Potentiometer PCB (43-4) from connector (CN22) on
the Input PCB (45).

3. Disconnect the lead wire (BN13-9P) on the Front PCB (43-1) from connector (CN13) on the Main
PCB (44-1).

4. Disconnect the connector (CN87-19P) on the Front PCB (43-1) from connector (CN87) on the Main
PCB (44-1).

5. Disconnect the lead wire (BN73-5P) on the Phone PCB (43-3) from connector (CN73) on the Main
PCB (44-1).

6. Disconnect the lead wire (BN84-5P) on the Front input video PCB (43-6) from connector (CN84) on
the Input PCB (45).

7. Remove 1 screw (S6) and then lead wire (JW98,JW99-1P) on the PCB (43-5, 43-3).

8. Remove 1 screw (S6) and then lead wire (JW97-1P) on the Power LED PCB (43-2).

9. Remove 10 screws (S1) and then remove the Front Panel ASS’Y.

3 POTENTIOMETER PCB (43-4) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Remove the Front Panel ASS’Y, referring to the previous step 2.

3. Remove 2 screws (S3) and then remove the Potentiometer PCB (43-4).

4 PHONE PCB (43-3) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Remove the Front Panel ASS’Y, referring to the previous step 2.

3. Remove 2 screws (S4) and then remove the Phone PCB (43-3).

4. Disconnect the lead wire (BN73-5P) from connector (CN73) on the PHONE PCB (43-3).

5 Volume PCB (43-5) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Remove the Front Panel ASS’Y, referring to the previous step 2.

3. Pull out the Volume Knob ASS’Y .

4. Remove 4 screws (S3) and then Volume PCB (43-5).

5. Disconnect the lead wire (BN81-5P) from connector (CN81) on the Volume PCB (43-5).

6 POWER LED PCB (43-2) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Remove the Front Panel ASS’Y, referring to the previous step 2.

3. Remove 2 screws (S3) and then remove the Power LED PCB (43-2).

4. Disconnect the lead wire (BN82-5P) from connector (CN82) on the Power LED PCB (43-2).

7 FRONT INPUT VIDEO PCB (43-6) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Remove the Front Panel ASS’Y, referring to the previous step 2.

3. Remove 2 screws (S3) and then remove the Front input video PCB (43-6).

8 FRONT PCB (43-1) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Remove the Front Panel ASS’Y, referring to the previous step 2.

3. Remove the Potentiometer PCB (43-4) , referring to the previous step 3.

4. Remove the PHONE PCB (43-3), referring to the previous step4.

29

HK3490 harman/kardon

5. Remove the Volume PCB (43-5), referring to the previous step 5.

6. Remove the POWER LED PCB (43-2), referring to the previous step 6.

7. Remove the Front input video PCB (43-6), referring to the previous step 7.

8. Remove 12 screws (S3) and then remove the Front PCB (43-1).

9 TUNER MODULE (34) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Disconnect the connector (CON1-Card cable) from connector (CN26) on the Input PCB (45).

3. Remove 2 screws (S5) and then remove the Tuner Module (47).

10 VIDEO PCB (43-8) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Disconnect the connector (CN85-Card cable) from connector (CN85) on the Input PCB (45).

3. Remove 4 screws (S8,S5) and then remove the Video PCB (43).

11 DSP PCB (46-1) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Disconnect the connector (CN51,52,71-Card cable) from connector (CN51,52,71) on Input PCB (45).

3. Disconnect the connector (CN51) from lead wire (BN51-11P) on the Tr PCB (46-2).

4. Remove 5 screws (S8,S5,S14) and then remove the DSP PCB (46-1).

12 INPUT PCB (46-1) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Disconnect the connector (CN21-Card cable) from connector (CN21) on the Main PCB (44-1).

3. Disconnect the connector (CN24) from lead wire (BN24-5P) on the Main PCB (44-1).

4. Remove 7 screws (S5,S14) and then remove the DSP PCB (46-1).

13 POWER TRANS (30) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Disconnect the connector (CN15,CN12) on the Trans PCB (43-7) from lead wire (BN15-3P,BN12-2P)
on the Main PCB (44-1).

3. Disconnect the connector (CN11,CN14,CN15) on the Main PCB (44-1) from lead wire (BN11­3P,BN14-13P,BN15-3P) on the Trans PCB (43-7)

4. Remove 4 Trans screws (S15) and then remove the Power Trans (42).

14 MAIN PCB ASS’Y(44) REMOVAL

1. Remove the Top-cabinet, referring to the previous step 1.

2. Remove the Power Trans (43-7),referring to the previous step 13.

3. Remove the TUNER MODULE (34), referring to the previous step 9.

4. Remove the VIDEO PCB (43-8), referring to the previous step 10.

5. Remove the DSP PCB (46-1), referring to the previous step 11.

6. Remove the INPUT PCB (46-1), referring to the previous step 12.

7. Disconnect the connector (CN13) from lead wire (BN13-9P) on the Front PCB (43-1).

8. Disconnect the connector (CN73) from lead wire (BN73-5P) on the PHONE PCB (43-3).

9. Disconnect the connector (CN61) from Power cord(35).

10. Remove 15 screws (S5-7EA, S8-2EA,S14-3EA,S9-1EA,S10-1EA,S3-1EA) and then remove the
Main PCB ASS’Y(44).

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HK3490 harman/kardon

LARGER PARTS CHART

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