Harman Kardon AVR-65 Service manual

harman/kardon

AVR65

A/V DOLBY DIGITAL RECEIVER

SERVICE MANUAL

CONTENTS

SPECIFICATIONS…………………………………………2 ELECTROSTATICALLY SENSITIVE(ES)DEVICES..…4 LEAKAGE TEST……………………….…………………. 5 CONTROLS AND FUNCTIONS………………………….6 SERVICE PROCEDURE…………………………..……..9 ALIGNMENT PROCEDURES………….…………..…….9 MAIN AMP IDLING CURRENT ADJUSTMENT………10 ALIGNMENT AND TEST POINTS………………..…… 11 CIRCUIT DESCRIPTION ………………………………..13 BLOCK DIAGRAM………………………………………. 16 DISASSEMBLY PROCEDURES ……………….………17 GENERAL UNIT PARTS LIST………………….……….18 GENERAL UNIT EXPLODED VIEW………….……..…20 SERVICE BULLETIN HK9804………………….……….21 SERVICE BULLETIN HK9805………………….……….22

harman/kardon, Inc. 250 Crossways Park Dr. Woodbury, New York 11797 Re

SERVICE BULLETIN HK9903……………………….23 SERVICE BULLETIN HK2000-01………….……..…24 SERVICE BULLETIN HK2001-02………….……..…26 PC . BOARDS……………………………………..…..28 ELECTRICAL PARTS LIST ……………………..…..33 IC BLOCK DIAGRAMS ……………………….……..50 CPU BLOCK DIAGRAM……………………………...61 FLT PIN CONFIGURATION …………………………62 DISPLAY SEGMENTS………………………………..69 SCHEMATIC DIAGRAMS…………………….…..….71 SCHEMATIC DIAGRAMS (RDS/SG).………………78 PIN CONNECTION DIAGRAM ….……………………87 WIRING DIAGRAM ……………………………………88 PACKING MATERIAL AND PARTS LIST …..……...89

v1 – 8/2005

RMS Output Power

THD(0.5%, 8 ohms, 1kHz)

Continuous Power Output

(STEREO MODE), Input : CD

THD : 0.08%, 8 ohms

Both Channel Driven(20Hz-20kHz)

(SURROUND MODE)

THD : 0.5%, 8 ohms, 1kHz

THD : at 60W, 8 ohms, Input : CD

20Hz

1kHz

20kHz

IM Distortion at 70W, 8 ohms, Vol : Max.

Nominal Limit

75W

65W

0.03%

70W

60W

0.08%

All Channel Driven

S/N Ratio(Input Level : 200mV)

Input Shorted, IHF-A WTD

Frequency Respones at-3dB

8 ohms, Dolby Pro Logic

RMS Output Power

THD(0.5%, 8 ohms, 1kHz)

All Channel Driven

S/N Ratio(Input Shorted, IHF-A WTD)

Delay : 20ms, Input Level : 200mV

Frequency Response at-3dB

8 ohms, Dolby Pro Logic

65W

65dB

100Hz-20kHz 150Hz-20kHz

65W

65dB

100Hz-20kHz 150Hz - 7kHz

65W

60dB

65W

60dB

Input Sensitivity for Rated Power Output(60W)

CD/DVD/TAPE MONITOR

MID1/VID2/VID3

S/N Ratio Input Shorted at 1 kHz 1W Output(WTD IHF-A)

Tone Control

Bass : 100Hz

Treble : 10kHz

Frequency Response at-3dB

Mode : Stereo(1Watt)

Channel Crosstalk Input Shorted by 1 K Ohms

10Hz

200mV

82dB

10dB

10Hz-80kHz

63dB

170 230mV

10dB 3dB

10Hz-70kHz

55dB

Line level at Pre-Out

Surround mode : BYPASS(STEREO)

Input Signal:Lch(only) 200mV

Master Volume : 5dB

Low pass crossover frequency

Slope (Low Pass Filter)

Input sensitivity / impedence

VID1/VID2/VID3

Output Level / Impedance

VID1/VID2/VID3

Frequency Response at-3dB

70Hz cut off

24dB/octave

1Vp-p/75ohm / 1dB

1Vp-p/75

DC-8 MHz

ohm / 1dB

DC-6 MHz

1kHz

10kHz

63dB

62dB

55dB

45dB

Tuning Cover Range 100kHz Step for AVR-65

-2-

87.50-108.00MHz

Tuning Cover Range 50 kHz Step for AVR-65RDS/SG

Image Rejection(at 999kHz)

40dB

0dB

Mono Usable Sensitivity(75 ohms Input, 98MHz)

Image Rejection(at 98MHz)

IF Rejection(at 90MHz)

46dB Queting Sensitivity(at 98MHz, 100% MOD.)

Stereo

Distortion(1kHz, 75kHz dev. At 98MHz, 71dbf Input)

Mono

S/N Ratio(500uV Input, 100% MOD. At 98MHz)

Stereo

Frequency Response(30Hz-15kHz)

AVR-65 De-Emphasis : 75

AVR-65RDS/SG De-Emphasis : 50

14.2dbf

80dB

90dB

39.2dbf

0.3%

65dB

0.5dB

2.0dB

17.2dbf

0dB

3.3dbf

0.5%

60dB

.0dB

IF Rejection(at 999/1000kHz)

AGC Figure of Merit(From 100mV/m at 999/1000kHz)

Distortion(999/1000kHz, 30% MOD, 50mV/m Input)

Frequency Response(999/1000Hz)

At-3dB

Selectivity(999/1000Hz)

9kHz/10kHz

S/N Ratio(999/1000kHz, With Antenna Input 5mV/m)

Overload Break-up at 999/1000kHz(THD 10%)

Tape Output Level at 999/1000kHz(5mV/m Input)

100Hz-2.2kHz

100mV/m

200mV

50dB

1.0%

30dB

45dB

5dB

.0%

150Hz-1.8kHz

40dB

00mV/m

160-240mV

AM Suppression at 98MHz

Muting Threshold(at 98MHz)

Overload Break-up at 98M

Capture Ratio at 65dbf

Stereo Separation(at 98MHz, 100% MOD, 500 Input)

IHF Band Pass Filter

1kHz

Tape out Level(at 98MHz)

Tuning Cover Range(MW)

50dB

31.2dbf

71dbf

40dB

500mV

Nominal Limit

2dB

39.2dbf

65dbf

40dB

50-650mV

dbf

2dB

Power Consumption

At Rated Power All Channel Driven

Idling at Minimum Volume Control

Power Supplies :

USA/Canada(AVR-65)

Europe(AVR-65RDS/SG)

Dimension(WxHxD)

Inches

Weight(Ibs/kgs)

420W

78W

AC120V, 60Hz

AC230V, 50Hz

17.3 6.5 17.1

440 165 435

32/14.5

AVR-65 : 10kHz/Step

AVR-65RDS/SG : 9kHz Step

Usable Sensitivity(MW, at 999 / 1000kHz)

520-1710kHz

522-1611kHz

500uV/m

00uV/m

These specifications are service target specs.

Specifications and components are subject to change without notice.

Overall performance will be maintained or improved.

-3-

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.

Each precaution in this manual should be followed during servicing.

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

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.

-4-

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

1. lnspect 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 using Simpson 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 paralleled by a 0.15uF capacitor, in series with all exposed metal cabinet parts and a known earth ground, such

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

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

performed with the 0.35 volt RMS or more is excessive and indicates a potential shock hazard which must be corrected before returning the

unit to the owner.

-5-

CONTROLS AND FUNCTIONS

Front Panel

stations. When a station with a strong signal is

tuned, the indicator will illuminate in

TUNED

program that carries the Dolby Digital information.

Press this button to begin the

Delay :

sequence of steps required to enter delay time

Main Power Switch :

apply power to the AVR-65.

When the switch is pressed in the unit is placed

in a Standby mode, as indicated by the amber

LED.

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 panel so that the word

"OFF" may be read at the top of the switch.

In normal operation this switch is left in

NOTE :

the "ON" position.

System Power Control :

Power Switch 1 is "ON", press this button to

turn on the AVR-65 ; press it again to turn the

unit off. Note that the

surrounding the switch will turn green when

the unit is on.

Power Indicator :

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.

Head Phone Jack :

to listen to the AVR-65's output through a pair of

headphones. Be certain that the headphones

have a standard 1/4" stereo phone plug.

Press this button to

When the Main

Power Indicator

This LED will illuminate in

This jack may be used

Bass Control :

the lower frequency output of the left / right

channels by as much as +/-10dB. Set this

control to a suitable position for your taste and

room acoustics.

Treble Control :

the high frequency output of the left / right

channels by as much as +/-10dB.

Set this control to a suitable position for your

taste and room acoustics.

Balance Control :

change the relative volume for the front left /

right channels.

For proper operation of the surround

NOTE :

modes this control should be at the midpoint, or

"12 o'clock" position.

Video 3 Inputs :

may be used for temporary connection of video

games, camcorder, digital still cameras or

portable audio products. To select a source

connected to these jacks, press the Video 3

Input Selector .

T-Mon Selector :

the device connected to the jacks

(24) as the listening source. The previously

selected source will continue to show in the

Turn this control to modify

Turn this control to

These audio / video inputs

Press this button to select

Tape Monitor

information Display

above the button will illuminate to remind you

that you are listening to the tape monitor output.

CD :

Press this button to select the device

connected to the CD Input jacks (6) as the

listening source.

DVD :

Press this button to select the

device connected to the DVD play jacks (7) as

the listening and viewing source.

Video Input Selectors :

buttons to select a source connected to the rear

panel inputs (3), (16), or the front

Audio/Video

Audio/Video input .

panel

6-Channel director Selector :

button to select the output of an optional, external

6-channel decoder connected to the

inputs (5) as the listening source.

AM/FM :

tuner as the AVR-65's input source. When it is

first pressed the last station tuned will be heard.

Press it again to change between AM and FM

bands.

Tuning button :

button to tune lower frequency station and the

right side of the button to tune higher frequency

Press this button to select the

, and the red LED

Press one of these

Press this

6 Ch Direct

Press the left side of the

the Information Display . A brief(1/2 second)

press of the button will manually tune to the next

frequency increment, while pressing and holding

the button for a long period will automatically

tune to the next station with a signal strong

enough for acceptable reception.

Preset Scan :

automatically scan through the station that have

been programmed in the AVR-65's memory.

The tuner will play five seconds of each station

before moving to the next preset station. To stop

the scan when the desired station is heard, press

the button again.

Preset Stations Selector :

to select stations that have been entered into the

preset memory.

TUN.MODE/RDS :

select the auto or mono mode for FM tuning.

In the AUTO mode, indicator will

illuminate in the information display, and when

stations are transmitting stereo signals, the

stereo reception will be provided and

indicator will also be illuminated in the

information display. In the MONO mode the left

and right signals from stereo broadcasts will be

mixed together and reproduced through all

channels. Select MONO for better reception of

weak signals.

Dolby Digital Selector :

select the Dolby Digital surround mode when

listening to a program that carries the Dolby

Digital surround mode when listening to a

Press this button to

Press this button

Press this button to

AUTO

Stereo

Press this button to

Dolby Pro Logic Selector :

button to select the Dolby Pro Logic surround

mode when listening to an analog or

digital(PCM) program that is encoded with

surround-sound information.

Dolby 3 Stereo Selector :

to select the Dolby 3 Stereo listening mode.

This mode is used primarily when a program

has surround information when a center channel

speaker, but no surround speakers, is installed.

Surround Mode Selectors :

these buttons to select the analog surround

modes. These modes may be used with any

analog program source to create a pleasing

surround effect.

DTS Selector :

DTS decoding when listening to an audio or

video program that is encoded with DTS

data.(See page 25 for more information on

surround modes and digital audio.)

Surround Off :

all surround processing, and to listen to a

program in traditional stereo from the left front

and right front speakers only.

Mute :

silence the speaker output of the AVR-65.

Volume Control :

increase volume, counter clockwise to decrease

the volume.

press this button to select

Press this button to turn off

Press this button to momentarily

Turn the knob clockwise to

Press this

Press this button

Press one of

settings.

Digital Input Selector :

source that has a digital output, press this button

to select between the (19) and

(18) inputs.

Digital

Set Button :

the setup and configuration process, press this

button to enter the desired setting, as shown in

the information Display, into the AVR-65's

memory.

Multi-room :

process of selecting and configuring the

AVR-65's output channels.

Speaker Selector Button :

to begin the process of selecting the speaker

positions that are used in your listening room.

Selector Buttons :

establishing the AVR-65's configuration settings,

use these buttons to select between the choices

available. as shown in the information Display .

Information Display :

messages and status indications to help you

operate the receiver.

Remote Sensor Window :

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.

When making choices during

Press this button to begin the

When playing a

Optical Coaxial

Press this button

When you are

This display delivers

The sensor

-6-

Remote Control

AVR Selector :

remote control for operation of the AVR-65. Note

that the button will briefly turn red after it has

been pressed to confirm your selection.

Device Control Selectors :

these button to use the remote to control the

functions of another audio/video device. Note

that the button will briefly turn red after it has

been pressed to confirm your selection.

Power Button :

currently selected device on or off.

Press this button to use the

Press one of

Press this button to turn the

Mute : Press this button to momentarily

silence the AVR-65 or TV set being controlled,

depending on which device has been selected.

Press this button to begin the

Test :

sequence used to calibrate the AVR-65's output

levels.

Display/Multiroom Button :

does not function with AVR-65, but it is available

for use with other devices.

Buttons :

buttons. They will be used most frequently to

These are multi purpose

This button

select a surround mode.

To change the surround mode, first press the

SURR/CH

buttons to scroll up or down through the list of

surround modes that appear in the Information

Display

increase or decrease output levels used to lower

the AVR-65's output levels when configuring the

unit with either the internal test tone or and

external source. They are also used to enter

delay time settings after the button has

been pressed.

/ This button is used

to start the process of setting the AVR-65's

output levels to an external source. Once this

button is pressed, use the / buttons to

select the channel being adjusted, then press

Set

the button , followed by the / buttons

again to change the level setting.

Set Button :

settings into the AVR-65's memory. It is also

used in the setup procedures for delay time,

speaker configuration and channel output level

adjustment.

Night Mode :

the "Night" mode, preventing loud playback

when the digital modes are in use without

altering the dynamic range of the output signal.

When the AVR-65 remote is being programmed

to operate other devices, this button is pressed

to begin a readout of a programmed code.

Source Selectors :

select an input source for the AVR-65. The AM/

FM button is also used to switch between

frequency bands when the tuner in use.

NOTE :

the source only. In order to control the actual

source machine using the remote you must

press the button for

the desired product.

button . Next press these

. These buttons are also used to

Delay

Channel Button :

This button is used to enter

Press this button to activate

Press these buttons to

Pressing one of these buttons selects

Press Control Selector

Numeric Keys :

ten-button numeric key-pad to enter tuner preset

positions. They are also to be used to select

channel numbers when TV 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.

The 0 button has a dual function. It also

NOTE :

serves as the button for use in

programming the tuner or clearing the system

memory.

Direct/Enter :

radio station by entering its frequency using the

Numeric Key .

Memory Button :

a radio station into the AVR-65's preset memory.

After pressing the button the indicator

will flash, and you then have five seconds to

enter a present memory location using the

Numeric Keys .

Although the word "Sleep" appears

NOTE :

above this button, it refers to control of devices

other than the AVR-65. Use the button

to control the AVR-65's Sleep function.

OSD Button :

display function with the AVR-65.

Semi Full OFF

Light Button :

the remote's built-in back-light for better legibility

of the buttons in a darkened room.

Tuner Mode :

tuner is in use to select between automatic

tuning and manual tuning. When the button is

pressed so that the indicator goes out,

pressing the 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, as indicated by the

These buttons serve as a

CLEAR

Press this button to select a

Press this button to enter

MEMORY

Sleep

This button dose on screen

Press this button to activate

Press this button when the

AUTO

Tuning

MONO

indicator .

Clear Button :

function with the AVR-65, but it is available for

use with other devices.

Press Up/Down :

these buttons scroll through the stations that

have been programmed into the AVR-65's

memory, When many source devices, such as

CD players, VCRs and cassette decks, are

selected using the .

these buttons will normally function as chapter

step or track advance.

Tuning Up/Down :

these buttons will tune up or down through the

selected frequency band. If the

button has been pressed so that the

indicator is illuminated, pressing these

buttons will cause the tuner to seek the next

station with acceptable signal strength for quality

reception. When the indicator is NOT

illuminated, pressing these buttons will tune

stations in single-step increments.

Transport Control :

control any function of the AVR-65, but they are

used extensively when operating a wide variety

of CD players, cassette decks and VCRs.

Delay/Prev Ch. :

the process for setting the delay times used by

the AVR-65 when processing surround sound.

After pressing this button the delay times are

entered by pressing the button , and then

using / buttons to change the setting.

Press the Set button again to complete the

process.

/ This button is used to

select the type of digital input used with any one

of the input sources connected to the AVR-65.

After pressing this button, use the / buttons

(7) to make your selection between

or digital. Press the button

COAXIAL Set

This button dose not

When the tuner is in use,

Device Control Selectors

When the tuner is in use,

Tuner Mode

AUTO

These controls do not

Press this button to begin

Set

Digital Button :

OPTICA

to enter your choice.

Speaker Configuration :

to begin the process of configuring the AVR-65's

Bass Management System for use with the type

of speaker used in your system.

Once the button has been pressed, use the /

buttons to select the channel you wish to set

up. Press the button , and then select

another channel to configure. When all

adjustments have been completed, press the Set

button twice to exit the settings and return to

normal operation.

button to begin the process of changing the

surround mode. After the button has been

pressed, use the / buttons to select the

desired surround mode. Note that this button is

also used in the "Auto Search" process.

lower the system volume.

the unit in the Sleep Mode. After the time shown

in the display, the AVR-65 will automatically go

into the standby mode. Each press of the button

changes the time until turn-off in the following

order:

Note that this button is also used to change

channels on your TV when the TV is selected

using the Devise Control Selector .

When the AVR-65 remote is being programmed

for the codes of another device, this button is

also used in the "Auto Search" process.

Set

Surround Mode Selector :

Volume :

Sleep Button :

Press these buttons to raise or

Press this button to place

90 80 70 60 50 40

30 20 10 5 1 OFF

Press this button

Press this

-7-

AM Antenna : Connect the AM loop

antenna supplied with the receiver to these terminals. If an external AM antenna is used, make connections to the AM and GND terminals in accordance with the instructions supplied with antenna.

FM Antenna :

external FM antenna to this terminal.

Video 1 Inputs :

the audio and video PLAY/OUT jacks of a VCR.

Video Outputs 1:

the audio and video RECORD INPUT jacks of a VCR.

6-Channel Direct Inputs :

digital audio decoder is used for 5.1(Dolby AC-

3)audio, connect the outputs of that decoder to these terminals.

CD Inputs

output of a compact disc player or CD changer.

DVD Inputs

outputs and composite video output of a DVD or LD player to these jacks.

Pre-Outs

used for any channels, connect them to these jacks.

Subwoofer Pre-Out :

the line level input a powered subwoofer. If an external subwoofer amplifier is used, connect this jack to the subwoofer amplifier input.

Front :

front left/right speakers.

Connect an indoor or

Connect these jacks to

If an external

: Connect these jacks to the

: Connect the analog audio

: If external power amplifiers are

Connect this jack to

Connect these terminals to the

Center :

center speaker.

Surround :

surround speaker.

Unswitched AC Outlet :

be used to power any AC device. The power will remain on at this outlet regardless of whether the AVR-65 is on or not.

NOTE :

plugged into each of these outlets should not exceed 100 watts.

Switched AC Outlet :

used to power any device that you wish to turn on when the unit is turned on wiht the System Power Control switch.

Power Cable :

non-switched AC wall output.

Video 2 Inputs :

audio and video outputs of a TV Tuner. Cable TV converter box, satellite receiver of any other audio/video source.

TV Monitor Video Output :

jack to the standard(composite) video input of a TV monitor or video projector to view the onscreen menus and the output of any standards video source selected by the receiver's video switcher.

Coaxial Digital Input :

digital output from a DVD player, HDTV receiver, LV player or CD player to this jack. The signal may be either a Dolby Digital (AC-3) signal, DTS signal or a standard PCM digital source.

Connect these terminals to the

This outlet may

The power consumption of the device

This outlet may be

Connet the AC plug to

Connet these jacks to the

Connet this

Connect the coax

Optical Digital Input :

digital output from a DVD player, HDTV receiver, LV player or CD player to this jack. The signal may be either a Dolby Digital (AC-3)signal, a DTS signal or a standard PCM digital source .

Remote IR In :

IR sensor is blocked due to cabinet door or other obstructions, an external IR sensor may be used. Connect the output of the sensor to this jack.

Remote IR Out :

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.

Connect the output of an IR sensor

Multi :

in a remote room to this jack to operate the AVR65's multiroom control system.

Multiroom Audio Outputs :

jacks to the inputs of an optional audio power amplifier so that the input selected by the multiroom control system will be heard in a remote room.

Tape Monitor In :

the PLAY/OUT jacks of an audio recorder.

Tape Monitor Out :

to the RECORD / INPUT jacks of an audio

Connect the optical

If the AVR-65's front panel

This connection permits

Connect these

Connect these jacks to

Connect these jacks

Mute :

This indicator illuminates to remind

you that the AVR 65's output has been silenced

by pressing the Mute button .

Press the Mute button again to return to the

previously selected output level.

Bypass :

the surround processing has been disabled by

pressing Surround Off button . When this

indecator is it, the AVR-65 will play transitional

stereo sound using the front left and right

speakers only.

Analog :

analog input source is in use.

Dolby Digital Indicator :

illuminates when a Dolby Digital source is

being played.

OPT. :

digital source is in use via a connection to the

Optical Digital input.

Dolby Pro-Logic Surround Mode

Indicators :

one of the analog (matrix) or Digital(PCM)

Dolby Surround modes is in use.

COAX.Source :

when a digital source is in use via a connection

to the Coaxial Digital input.

AC-3 Indicator :

when a AVR-65 is decoding a Dolby Digital

input source.

This indicator illuminates when

This indicator illuminates when an

This indicator illuminates when a

These indicators illuminate when

This indicator

This indicator illuminates

PCM Indicator :

to show that a standard PCM(SP/DIF) digital

audio signal is being decoded by the digital-to-

analog converter.

Surround Mode Indicators :

indicators illuminate when one of the DSP

generated analog surround modes is in use

with an analog input source.

Multiroom System Indicators :

indicator illuminates when the multiroom system

is in operation.

Night Indicator :

the AVR-65 is in the Night mode, which

prevents the AVR-65 from loud playback when

digital sources are in use.

DTS Indicators :

when a DTS encoded source is playing.

Preset Number :

indicates the station preset number that is

currently in use, or of that is being entered.

Preset Indicator :

when one of the stations entered into the

preset memory is tuned. The number that

appears below the indicator is the preset

station's memory.

Memory :

entering presets and other information into the

tuner's memory.

This indicator illuminates

These

This

This indicator lights when

This indicator illuminates

This two-digit display

This indicator illuminates

This indicator flashes when

Auto :

This indicator illuminates when the

"Auto" mode is in use for FM tuning.

Stereo Indicator :

when an FM station is being tuned in stereo.

Mono Indicator :

when the tuner has been placed in the

monaural mode by pressing the

button . Set the tuner for mono listening to

cut noise and improve the quality of distant

stereo signals.

Tuned Indicator :

when a station is being received with sufficient

signal strength to allow for acceptable listening

quality.

Main Information Display :

shows messages relating to the status, input

source, surround mode, tuner, volume level or

other aspects of unit's operation.

Sleep Indicator :

illuminated when the Sleep function is in use.

The number that appears above the indicator is

the number of minutes remaining before the

AVR-65 will return to the Standby mode.

This indicator illuminates

Tune Mode

This indicator illuminates

This display

This indicator is

-8-

SERVICE PROCEDURE TEST EQUIPMENT REQUIRED

1. All Clear

This service program can clear all memorized operations and functions. When the POWER ON, press the "AM/FM" button while pressing the "PRO LOGIC"button. After this, Preset memory will be set to these frequencies.

VERSION

120

230,230RDS

87.5

87.50

88.0

88.00

90.0

90.00

95.0

95.00

98.0

98.00

99.0

99.00

106.0

106.00

108.0

108.00

1) AM/FM Signal generator

2) Digital Multimeter

3) Distortion lever meter

VERSION

120

230,230RDS

520

522

P10

600

594

P11

610

999

P12

1000

1395

P13

1400

1611

P14

1500

2. VFD segment illumination & text

This service procedure will illuminate all segments by the following steps.:

(1) Press the Power ON button(Push Knob) while you are holding the TEST TONE (dts) button. (2) Then "TEST MODE" character will be shown on VFD Display. (3) This set do not have Auto VFD segment check function. So For your checking the VFD states according to each function,

Please press any function button which you want to test.

(4) For example : Tape monitor & CD

1) Press the POWER ON button (Push Knob) while you are holding the TEST TONE (dts) button.

2) Then "TEST MODE" character will be shown on VFD Display.

3) Press the T.MON button on Front, then you are able to see "TAPE MONITOR" Character on VFD Display.

4) Press the CD button on Front, then you are able to see "CD" Character on VFD Display.

BUTTON

ST. POWER

T. MON

DVD

VID 1

VID 2

VID 3

6CH

AM/FM

TUNING

PRESET SCAN

PRESET

TUN. MODE(RDS)

DIGITAL

PRO LOGIC

3 STEREO

HALL 1

HALL 2

THEATER

SURR. OFF

SPEAKER

Multi-room

DIG. SELECT

DELAY

MUTE

VOLUME UP

VOLUME DOWN

SET

SEGMENT(Large)

POWER

TAPE MONITOR

DVD

VIDEO 1

VIDEO 2

VIDEO 3

6 CH DIRECT

TUNER

TUNING DOWN

TUNING UP

PRESET SCAN

PRESET DOWN

PRESET UP

NO RDS

DOLBY AC-3

PRO LOGIC

3 STEREO

HALL 1

HALL 2

THEATER

SURR OFF

FRNT SPEAKER

Multi-room

COAXIAL

S DELAY TIME

MUTE

VOLUME UP

VOLUME DOWN

SET

COMM DOWN

COMM UP

TUNED, MONO, STEREO, AUTO, MEMORY, PRESET, 88

RDS, PTY, CT, RT

DIGTAL, AC-3, NIGHT

PRO LOGIC, PCM

3-STEREO

HALL 1

HALL 2

THEATER

BYPASS

ANALOG, OPT, COAX

MUTE

SEGMENT(Small)

P15

1710

ALIGNMENT PROCEDURES

1. FM MONO. Distortion adjustment

Input Signal Source

step

Connection

Signal generator

output to FM

antenna

terminal.(750hm)

Signal

Frequency

98MHz

Source Signal Output Level and

Modulation

1000uV/m (60dBu)

MONO 1kHz/

Dev. 75kHz

2. FM MUTING LEVEL ADJUSTMENT

Turn variable resistor VR801 and stop at position "TUNED" is not shown (not indicated), then again turn the variable resistor VR801 to the opposite revolution and stop at a position "TUNED" is shown.

Input Signal Source

step

Connection

Signal generator

output to FM

antenna

terminal.(750hm)

Signal

Frequency

98MHz

Source Signal Output Level and

Modulation

10uV/m (20dBu)

MONO 1kHz/

Dev. 75kHz

4. FM STEREO Separation Adjustment

Input Signal Source

step

Connection

Signal generator

output to FM

antenna

terminal.(750hm)

Signal

Frequency

98MHz

Source Signal Output Level and

Modulation

same specification as

distortion adjustment.

Input only L channel

same specification as

distortion adjustment.

Input only R channel

FM STEREO

Reception

Frequency

98MHz

(P5)

Reception

Frequency

98MHz

(P5)

AUTO

SCAN

Reception

Frequency

98MHz

(P5)

98MHz

(P5)

Adjustment

Point

T804

T805

Adjustment

Point

VR801

Only confirm

Adjustment

Point

VR803

Adjustment

0mV 0.5mV

(R831)

Distortion

Minimum

TAPE-OUT

Adjustment

"TUNED"

indicate on VFD

"TUNED"

indicate on VFD

Adjustment

Output level

at TAPE-OUT

channel R

Output level

at TAPE-OUT

channel R

Value

level

Value

Minimum

-9-

4. AM OSC Adujstment

8. Main Amp ldling current Adjustment

Input Signal Source

step

Connection

Signal Generator

output to transmission

loop antenna

(standard required loop)

Frequency

(230,230RDS)

520kHz(120)

5. AM-Tracking Adjustment (MW)

Input Signal Source

step

Connection

Signal Generator

output to transmission

loop antenna

(standard required loop)

Frequency

(230,230RDS)

600kHz(120)

(230,230RDS) 1400kHz(120)

Signal

522kHz

Signal

594kHz

1395kHz

Source Signal Output Level and

Modulation

5mV/m(74dBu)

400Hz

MOD.30%

Source Signal Output Level and

Modulation

5mV/m(74dBu)

400Hz

MOD.30%

Reception

Frequency

522kHz

(230,230RDS)

520kHz

(120)

(P9)

Reception

Frequency

594kHz

(230,230RDS)

600kHz(120)

Adjustment

Point

T802

Adjustment

Point

T801

CT801

Adjustment

Value

1.1V 1.2V

Adjustment

Value

Output level(L or R)

Minimum

TAPE-OUT

Output level(L or R)

Minimum

TAPE-OUT

1) Alignment condition

(1) Adjust each of the variable resistors below in both the main and surround boards to the center position :

MAIN AMP BOARD : VR401, VR402, VR501

SURROUND AMP BOARD : VR601, VR602

2) Warming up system

After he above adjustment, turn the power ON and let the receiver warm up for 5 minutes to achieve a stable temperature for the driver and

power transistors.

3) Measurement condition

Adjust each variable resistor listed below clockwise for each channel, and adjust refer the following table for the details.

CHANNEL ADJUSTING LOCATION MEASURE LOC. VOL. DROP

FRONT-L

FRONT-R

CENTER

SURR-L

SURR-R

VR401

VR402

VR501

VR601

VR602

R471

R472

R536

R671

R672

15mV 3mV

6. AM IF Adjustment

Input Signal Source

step

Connection

Signal Generator

output to transmission

loop antenna

(standard required loop)

7. AM auto stop Adjustment

Input Signal Source

step

Connection

Signal

Frequency

999kHz (230,230RDS) 1000kHz(120)

Signal

Frequency

Source Signal Output Level and

Modulation

5mV/m(74dBu)

400Hz

MOD.30%

Source Signal Output Level and

Modulation

Reception

Frequency

999kHz

(230,230RDS)

1000kHz

(120)

Reception

Frequency

Adjustment

Point

T803

Adjustment

Point

Adjustment

Value

Output level(L or R)

Maximum

TAPE-OUT

Output level(L or R)

Maximum

TAPE-OUT

Adjustment

Value

4) CAUTION

(1) whenever power or driver transistors are changed, after repair you must re-adjust the idle current for repair, have to re-adjust that idle

current again.

(2) Discharge each large elec. Capacitor C481, and C482(8200u) on main amp board, and C691, C692(6800uF/50V) on surround amp board.

Signal Generator

output to transmission

loop antenna

(standard required loop)

999kHz (230,230RDS)

1000kHz

(120)

1000uV/m(60dBu)

400Hz

MOD.30%

999kHz (230,230RDS) 1000kHz(120)

AUTO SCAN

VR802

Only

Confirm

"TUNED"

indicate on

VFD

"TUNED"

indicate on

VFD

-10-

DISASSEMBLY PROCEDUREDISASSEMBLY PROCEDURE

1. Removing the top cover, and Remove screws

2. Removing the front panel, and Remove screws

4. Removing the main PCB block, and Remove screws

5. Removing the power PCB block, and Remove

3. Removing the rear panel, and Remove screws

MAIN AMP PCB BLOCKMAIN AMP PCB BLOCK

1. Remove all of the screws on Rear panel.

2. Remove the Rear panel.

3. Remove PCB Brk t and Guide

4. Remove all of the screws that connect with main Ass y.

5. Remove the Main PCB block.

POWER PCB BLOCKPOWER PCB BLOCK

1. Remove PCB Brk t and Guide

2. Remove 4 screws for Power PCB mounting

3. Remove the POWER PCB block.

SUB PCB BLOCKSUB PCB BLOCK

1. Remove 4 screws on Rear panel.

2. Remove the Rear panel.

3. Remove PCB Brk t and Guide

4. Remove the SUB PCB block.

Brk t from Main Ass y.

6. Removing the sub PCB block, and Remove screws

FRONT PCB BLOCKFRONT PCB BLOCK

1. Remove Main

2. Remove volume and rotary knob from the front

3. Remove all of the screws on back side of Front function PCB.

4. Remove the Front function PCB.

Ass y.

-17-

GENERAL UNIT PARTS LIST

REF NO.REF NO.

1-A

10-A

14-A

14-B

27-A

27-B

28-A

39-A

39-B

PART NO.PART NO.

5111-005-010

5111-008-010

5131-003-010

5131-003-020

5131-003-030

5131-003-040

5131-003-050

5131-003-060

5131-003-070

5131-003-080

5141-005-010

5141-008-010

5141-003-020

5142-003-010

5179-000-060

5212-005-010

5212-008-010

5212-011-010

5213-003-010

5214-003-010

5214-003-020

5214-003-030

5214-003-040

5214-003-050

5214-003-060

5283-003-010

5451-003-010

5451-003-040

5451-003-050

5451-003-060

J1419000005X

1419-001-005

1419-002-005

2161-000-032

2161-001-032

5241-003-010

5241-003-020

5226-003-030

5226-003-010

5226-003-020

5241-003-040

5241-000-110

5451-003-020

5226-003-040

5421-003-070

A0191-065-000

A0191-065-001

A0191-095-001

DESCRIPTION

PANEL. FRONT

KNOB. FUNCTION (A)

KNOB. FUNCTION (B)

KNOB. FUNCTION (C)

KNOB. POWER

KNOB. PUSH

KNOB. TACT

KNOB. VOLUME

KNOB. ROTARY

WINDOW. FRONT

FILTER. WINDOW

LENS. POWER

BUSHING. STRAIN R

PANEL. REAR

COVER TOP

CHASSIS. FRONT

CHASSIS. MAIN

COVER. BOTTOM

TRANS. BOTTOM

FRAME. GUIDE

BRK'T. PCB

FOOT ASS'Y

CUSHION. PCB

CUSHION (A)

SHEET. POWER

CUSHION. BRK'T

TRANS. POWER

CORD. POWER

HEAT SINK. MAIN

HEATSINK. SUB

CASE. SHIELD (D)

CASE. SHIELD (F)

CASE. SHIELD (T)

HEAT SINK. REG

HEAT SINK. PIN

CUSHION. FLT

CASE. SHIELD (T2)

CUSHION (B)

REMOCON ASS'Y

Q'TY

-18-

UNIT PARTS LIST

REF NO.REF NO.

MAIN AMP

REAR AMP

SUB

C-VIDEO

S-VIDEO

AUDIO INPUT

TUNER

FRONT

POWER

HEAD PHONE

DSP1

DSP2

STAND-BY

PART NO.

5636-140-010

5636-140-040

5636-140-060

5636-140-100

5636-140-050

5636-140-220

5636-140-080

5636-140-030

5541-001-030

5541-001-040

5541-001-010

5541-001-020

0112-001-160

0112-001-1611

0112-001-1612

0112-001-151

0112-001-161

0112-001-152

0112-001-1632

0112-001-1631

0112-001-1633

0112-001-154

0112-001-1634

DESCRIPTION

SCREW 3*10 TEETH COPPER

SCREW A183008000

SCREW S30C BTTN D12.3X10 MC

SCREW A123008002

SCREW A183006002

SCREW A124008000

SCREW A113016000

WASHER. SPRING N2.0 M4.0 MC

WASHER. PLAT P/W 4.7X12X1.0 MC

WASHER. SPRING NO2 M3.0 MC

WASHER. PLAT P/W 3.3X8X0.5 MC

ASSY-PCB : MAIN AMP ASSY-PCB : REAR AMP

ASSY-PCB : SUB

ASSY-PCB : C-VIDEO

ASSY-PCB : S-VIDEO

ASSY-PCB : AUDIO INPUT

ASSY-PCB : TUNER

ASSY-PCB : FRONT

ASSY-PCB : POWER

ASSY-PCB : HEADPHONE

ASSY-PCB : DSP1

ASSY-PCB : DSP2

ASSY-PCB : STAND-BY

Q'TY

-19-

harman/kardon Service Bulletin

Service bulletin # H/K9804 December 1998 Repair rate does not apply

To: All harman/kardon Service Centers

Models: AVR35/45/65 North America/RDS/Singapore (all versions)

Subject: Remote Control Functions Do Not Work

When the batteries are replaced in the

5.5V) maintains memory functions for 4-5 hours. When C1 is discharged or the remote control is stored for 2 months or more without batteries, the remote goes in the factory default mode. This condition may occur from the time delay in shipping the unit from the factory to the customer. When the batteries are installed, and the customer presses a button on the remote, it may emit a “corrupted” noise signal (caused by capacitor C1) rather than the normal output signal. As result, certain remote functions may no longer work properly.

In the event you receive an AVR35,45 or 65 with the complaint of “Certain buttons on the remote control do not work”, perform the necessary steps listed below:

1. Make sure there are fresh batteries in the remote, and they are installed correctly.

2. Make sure the area between the remote control and receiver is not blocked by some object, and the distance is no more than 15 feet at an angle no greater than 30 degrees from the front of the receiver.

3. Make sure strong lighting is not directed towards the IR sensor of the receiver.

4. Press each button on the remote and verify proper operation.

If these steps are taken and remote control still does not function properly -

AVR35/45/65 remote control, capacitor C1 (.1 Farad,

5. This step discharges the capacitor and resets the remote control. (You do not need to point

the remote control at the receiver or even have the receiver turned on.) A: AVR35 - Press the TV and the M4 buttons at the same time and hold for 12 seconds. B: AVR45 or AVR65 - Press the TV and the LIGHT buttons at the same time and hold for 12 seconds.

To Test: Make sure your AVR35/45/65 is ON, press each button on the remote and verify proper operation of your receiver.

harman/kardon Incorporated 250 Crossways Park Drive, Woodbury New York 11797 (516) 496-3400

harman/kardon Service Bulletin

Service bulletin # H/K9805 Rev. 2 January 2003

To: All harman/kardon Service Centers

Models: AVR65 AM/FM Receiver, North America (120v) version

Subject: Hum or Buzz in loudspeakers

In the event you receive an AVR65 with the complaint of “There is a hum or buzz coming from the speakers in one or more channels”, perform the necessary steps listed below:

1. Disconnect all external cables including power cord.

2. Remove the (14) screws holding the top cover to the receiver; remove cover.

3. Locate Fuses FU481 & FU482; they are on the Main PCB in the right front quadrant of the receiver.

4. Remove and discard FU481 and FU482 and replace with h/k part# FS1067, (2A Slo-Blo 5 x 20mm GMC type).

5. Replace the top cover; set the unit on its side on a padded surface.

6. Remove the (8) screws holding the bottom grille screen in place.

7. Locate power supply capacitors C481/C482 and IC482 (See diagrams); they are located in the right front quadrant of the Main PCB.

8. Solder an insulated 16 - 20 gauge (0.5 to 1.0 mm C481/C482 (8200 63v) and the ground lead on IC482 (-15v regulator).

9. Replace bottom screen; re-connect all external cables and test the receiver.

This is considered a Minor Repair

) jumper wire between the common (ground) point on

10. If this does not solve the problem, replace rectifier bridge D482, h/k Part# J2203336007X.

Model Serial number (120V) Status Action

JS0003-01001

AVR65

JS0003-07704 *

AVR65

* Any unit in this serial number range with a small green dot attached to the left of the serial number on the outer carton has been modified.

JS0003-07705

and above

Needs Modification

Steps 1-9 only

Changed by factory

Steps 1-9 only

Replace FU481 & FU482;

Attach ground wire

according to instructions

NONE REQUIRED

Steps 1-9 only

harman/kardon Incorporated 250 Crossways Park Drive, Woodbury New York 11797 (516) 496-3400

harman/kardon Service Bulletin

Service bulletin # H/K9903 August 1999

To: All harman/kardon Service Centers

Models: AVR35/45/65 Dolby Digital A/V Receivers

Subject: Interference on Television

One of the measurements of a good signal strength, whether it be audio or RF, is called the signal to noise ratio. In other words, given a set level of interference or noise, the stronger the signal, the less noticeable the noise. Similarly, when a signal is not as strong as desired, you can attempt to lower the noise to improve the signal.

Digital products such as newer FAX machines and state of the art audio products like the AVR35, AVR45 and AVR65 often produce more RF interference than traditional analogue designs. The parts and procedure we recommend below will reduce RF interference, and lower the noise level by improving the signal to noise ratio.

In the event you receive an AVR35, AVR45 or AVR65 Receiver with the complaint “There is video distortion on my television on certain channels when my TV is attached to my AVR receiver, and I am using an external TV antenna”, perform the steps listed below. We have also included recommendations which can be made to the

customer.

1) Order h/k part# KT65A which consists of two Ferrite chokes, and 12 new black screws for the rear panel, h/k part# A123010002.

2) Attach the larger of the two ferrite chokes on to the receiver’s power (AC) cord, approximately 2 inches from the rear panel: Open the block, lay the cord inside, and then wind the power cord around the choke at least 3 times. Close block.

3) Locate the 6 -12 (depending on model) black Phillips screws at the outer rear panel of the unit, only in the area of: the Video panel, Digital Input panel, Remote control panel, and Pre-Out panel (AVR45 & 65 only). Remove and replace these screws with h/k part# A123010002. (The new screws have "teeth" on the bottom of the head for assuring proper contact with rear panel.)

4) Test unit.

Further recommendations which can be made to the customer:

1) To limit the interference coming into the cable that goes into the television, clip the smaller ferrite choke (part of kit KT65A) on to the coaxial antenna cable, about 2 inches from the rear of your television set.

2) Change any #RG-59 coaxial cable going into the television with #RG-06 coaxial cable, which has improved shielding.

3) Disconnect all power (AC) cords from the convenience (switched or unswitched) AC outlets on the back of the AVR receiver, as they may behave like antennas.

4) If there is still an unacceptable level of interference, use an antenna amplifier to improve the TV signal strength.

Model Serial numbers Screws - action Ferrite choke from kit# KT65A

AVR35 (120v) AVR45 (120v) AVR65 (120v)

AVR65 (120v) JS0003-11079

AVR35 (230v) AVR45 (230v) AVR65 (230v)

All serial numbers All serial numbers

JS0003-01001

JS0003-11078

and above

All serial numbers All serial numbers All serial numbers

Replace Replace

Replace

Changed by factory Installed by factory internally

Replace Replace Replace

Installed by factory internally Installed by factory internally Installed by factory internally

Clip on cord Clip on cord

Clip on cord

harman/kardon Incorporated 250 Crossways Park Drive, Woodbury New York 11797 (516) 496-3400

harman/kardon Service Bulletin

Service bulletin # H/K2000-01 Rev1 April 2001 Warranty labor rate: MINOR repair

To: All harman/kardon Service Centers

Models: AVR35/AVR45/AVR65

Subject: No Output in Surround Modes

In early versions of the AVR35, AVR45 and AVR65, the IC484 +5v regulator may overheat and go into thermal protection. Its +5 volt output will cease; when this happens the AC-3 and Surround Processor cannot function normally, and the audio output may go dead, or experience a long delay before any surround mode comes on.

In the event you receive an AVR35, AVR45 or AVR65 A/V receiver with the complaint “when attempting to use the surround modes, the unit’s output goes dead after several minutes, or may not change from stereo into the surround modes until after a long delay, or not change at all” (the words ‘No Data’ may also appear in the display), perform the following modification:

1) Remove the top cover, (14) Philips screws; set the unit on its side and remove the bottom cover, (8) Philips screws.

2) Locate R486, R495 (10 ohm 1 watt resistors) and IC484 (+5v regulator) on the MAIN PCB. See Figure 1. The parts are located near the front right corner of the MAIN PCB when viewed from the front. IC484 is attached to a rectangular aluminum heatsink.

3) Desolder and remove R486, R495 and IC484. The IC484’s heatsink has two additional soldered connections at the bottom of the MAIN PCB. See Figure 2.

4) Replace R486 and R495 with (2) 15 ohm 3 watt resistors, (h/k part# J1771150771X), soldered in series to

measure 30 ohms each. See Figure 3. Replace IC484 with +5v regulator, J1217780002X).

5) Replace heatsink with new larger part, (h/k part# J5241003040XX)

6) Use silicon grease when attaching the new regulator to the heatsink, and tighten it sufficiently with its single mounting screw before re-soldering in place.

7) When all new parts are installed, replace both the top & bottom cover.

8) Test the unit by connecting a music source to a digital input, either optical or coaxial, powering it up and monitor the receiver playing normally for extended period of time.

harman/kardon Incorporated 250 Crossways Park Drive, Woodbury New York 11797 (516) 496-3400

Models: AVR35/AVR45/AVR65 Subject: No Output in Digital Playback Mode

Model Serial number

120V

AVR35

AVR45

AVR65

AVR35

AVR45

AVR65

JS0007-01000

JS0007-14748

JS0001-01000

JS0001-11139

JS0003-01000

JS0003-02319

JS0007-14749

Or higher

JS0001-11140

Or higher

JS0003-02320

Or higher

Serial number

230V RDS

JS0005-01000

JS0005-05956

JS0004-01000

JS0004-04434

Modified by factory

JS0005-05957

Or higher

JS0004-04435

Or higher

Modified by factory

Status Action

IC484 Overheating;

Unit’s output ceases and “No

data” appears in the display

when using digital inputs

Modified by factory NONE REQUIRED

Replace R486 and R495 with (2) 15 ohm

3 watt resistors, soldered in series to

equal 30 ohms.

Replace IC484 +5v regulator.

Replace IC484 Heatsink

harman/kardon Incorporated 250 Crossways Park Drive, Woodbury New York 11797 (516) 496-3400

harman/kardon Service Bulletin

Service bulletin # H/K2001-02 June 2001 Warranty labor rate: MAJOR repair

To: All harman/kardon Service Centers

Models: AVR35/45/65, (US,SG,RDS Models)

Subject: Left, Right, or Center channel Dead

In the event you receive an AVR35, 45, or 65 A/V receiver with the complaint: “One channel has no output”, check the item below:

One or more of the 10 ohm fusible resistors R445,446,447,448,523, or 524 on the main PCB may be damaged. Perform with an ohmmeter an in-circuit resistance test of these 6 resistors. The Ohmmeter should read 10 ohms ±10%. If one or more resistors are out of tolerance, all 6 resistors (R445,446,447,448,523,524) should be changed to 10 ohm 1/4W metal film type, h/k part# 271-10.

1) Disconnect all external cables; remove the top cover (16 Black Phillips screws).

2) See page 2 for exact location of R445,446,447,448,523,524. If any resistors are found out of tolerance, proceed with the following steps:

3) Lay unit on its left side on a padded surface; remove the (8) Phillips screws holding the bottom chassis grille on, which will expose the Main PCB. Remove the two “feet” that are partially covering the grille.

4) Recommended procedure for resistor replacement is to cut each part off the main PCB from the top, then solder

the replacement part on the bottom of the PCB in the same location. There may be a square foam cushion on the bottom of the PCB covering the area(s) of one or more resistors pads; remove it. Use caution when correctly identifying each location, comparing the top and bottom of the main PCB. Tip: Resistors are represented by a silkscreen on the bottom of the main PCB by this line:

Serial Number

Model

AVR35

AVR35RDS n/a

AVR35SG n/a

AVR45

AVR45RDS n/a

AVR45SG n/a

AVR65

AVR65RDS n/a

AVR65SG n/a

120V

JS0007-01001

JS0007-16390

JS0001-01001

JS0001-12782

JS0003-01001

JS0003-06422

Serial Number

230V STATUS ACTION

If damaged, replace