DOWNLOAD Harman Kardon AVR 300 Service Manual ↓ Size: 779 KB | Pages: 40 in PDF or view online for FREE

36 SETUP CODES

ADCOM

062

AIWA

089

170

187

AKAI

202

CARVER

167

041

135

138

139

050

203

DENON

205

226

HARMAN KARDON

047

033

208

001

002

JVC

022

136

163

KENWOOD

007

016

023

055

137

MARANTZ

107

044

MONDIAL

147

NAD

005

178

215

NAKAMICHI

218

ONKYO

030

038

062

168

169

OPTIMUS

049

085

PANASONIC

068

PIONEER

010

020

174

PHILIPS

041

REALISTIC

102

181

187

RCA

012

150

SHARP

051

173

SHERWOOD

096

166

SONY

097

126

133

225

TEAC

079

140

TECHNICS

068

172

YAMAHA

012

046

183

186

DENON

014

HARMAN KARDON

018

JVC

012

LG

010

MAGNAVOX

013

MITSUBISHI

002

ONKYO

017

PANASONIC

003

PHILIPS

013

PIONEER

004

PROSCAN

005

006

RCA

005

006

SAMSUNG

011

015

SONY

007

TOSHIBA

008

YAMAHA

009

ZENITH

010

016

37 SETUP CODES

DAEWOO

024

DENON

030

GOLDSTAR

027

KENWOOD

025

MAGNAVOX

026

OPTIMUS

032

PANASONIC

021

PHILIPS

026

PIONEER

020

034

RCA

031

REALISTIC

032

SAMSUNG

023

029

SHARP

025

028

SONY

022

TECHNICS

021

TOSHIBA

025

YAMAHA

033

PIONEER

001

BR-200

AMERICAST

005

JERROLD

006

RT-J22 (CFT2200)

JERROLD

007

RT-J550C

PIONEER

002

BR-95

PIONEER

003

RT-P81/82

SCIENTIFIC-ATLANTIC

004

RT-S6X/USV86

TOCOM

010

RT-T7/T8

ZENITH

008

MN2500

ZENITH

009

RT-ZPMV

GE

101

114

115

ECHOSTAR

106

HITACHI

111

112

HUGHES

103

PANASONIC

113

PRIMESTAR

102

105

RCA

101

114

115

SONY

104

TOSHIBA

108

UNIDEN

109

110

38 TROUBLESHOOTING GUIDE

Unit does not function when Main

• No AC Power

• Make certain AC power cord is plugged 

Power Switch is pushed

into a live outlet

• Check to see if outlet is switch controlled

Display lights, but no sound 

• Intermittent input connections

• Make certain that all input and speaker 

or picture

• Mute is on

connections are secure

• Volume control is down

• Press Mute button
• Turn up volume control

Unit turns on,but Front-Panel

• Display brightness is turned off

• Follow the instructions in the Display Brightness section 

Display does not light up

on page 20 so that the display is set to VFD FULL

No sound from any speaker;

• Amplifier is in protection mode

• Check speaker-wire connections for shorts at receiver 

light around power switch is red

due to possible short

and speaker ends

• Amplifier is in protection mode 

• Contact your local Harman Kardon service depot

due to internal problems

No sound from surround or 

• Incorrect surround mode

• Select a mode other than Stereo

center speakers

• Input is monaural

• There is no surround information from mono sources

• Incorrect configuration

• Check speaker mode 

• Stereo or Mono program material

• The surround decoder may not create center- or rear-channel 

• Speakers not properly connected

information from nonencoded programs

• Check speaker-wire connections or use test tone

to verify connections (see page 18)

Unit does not respond to 

• Weak batteries in remote

• Change remote batteries

remote commands

• Wrong device selected

• Press the AVR selector

• Remote sensor is obscured

• Make certain front-panel sensor is visible to remote or 

connect remote sensor

Intermittent buzzing in tuner

• Local interference

• Move unit or antenna away from computers, fluorescent lights,

motors or other electrical appliances

In the rare case where the unit’s operation or
the displays seem abnormal, the cause may
involve the erratic operation of the system’s
memory or microprocessor.

To correct this problem, first unplug the unit
from the AC wall outlet and wait at least three
minutes. After the pause, reconnect the AC
power cord and check the unit’s operation.If
the system still malfunctions, a system reset
may clear the problem.

To clear the AVR 300’s entire system memory
including tuner presets, output level settings,
delay times and speaker configuration data,
first turn the unit off by pressing and releasing

the Main Power Switch 1 so that it pops
out from its normal recessed position.Next,
press and hold the AM/FM $ and the Dolby
Pro Logic Ó buttons while pushing in the
Main Power Switch 1 to turn the unit back
o n . Note that once you have cleared the memory
in this manner, it is necessary to re-establish all
system configuration settings and tuner presets.

NOTE: Resetting the processor will erase any
configuration settings you have made for
speakers, output levels, surround modes, digital
input assignments as well as the tuner presets.
After a reset the unit will be returned to the
factory presets, and all settings for these items
must be reentered.

If the system is still operating incorrectly, there
may have been an electronic discharge or
severe AC line interference that has corrupted
the memory or microprocessor.

If these steps do not solve the problem,consult
an authorized Harman Kardon service depot.

39 TECHNICAL SPECIFICATIONS

Audio Section
Stereo Mode 
Continuous Average Power (FTC)

60 Watts per channel, 20Hz–20kHz,
@ < 0.07% THD, both channels driven into 8 ohms

Five-Channel Surround Modes 
Power Per Individual Channel

Front L&R channels:
50 Watts per channel,
@ < 0.07% THD, 20Hz–20kHz into 8 ohms

Center channel:
50 Watts, @ < 0.07% THD, 20Hz–20kHz into 8 ohms

Surround channels:
50 Watts per channel,
@ < 0.07% THD, 20Hz–20kHz into 8 ohms

Input Sensitivity/Impedance

Linear (High Level)

200mV/47k ohms

Signal-to-Noise Ratio (IHF-A)

95dB

Surround System Adjacent Channel Separation

Analog Decoding 

40dB

(Pro Logic, etc.)
Dolby Digital (AC-3)

55dB

DTS

55dB

Frequency Response 

@ 1W (+0dB, –3dB)

10Hz–100kHz

High Instantaneous 
Current Capability (HCC)

±35 Amps

Transient Intermodulation 
Distortion (TIM)

Unmeasurable

Rise Time

16 µsec

Slew Rate

40V/µsec

Frequency Range

87.5–108MHz

Usable Sensitivity

IHF 1.3 µV/13.2dBf

Signal-to-Noise Ratio

Mono/Stereo 70/68dB

Distortion

Mono/Stereo 0.3/0.3%

Stereo Separation

40dB @ 1kHz

Selectivity

±400kHz,65dB

Image Rejection

80dB

IF Rejection

90dB

Tuner Output Level

1kHz, ±75kHz Dev 500mV

Frequency Range

520 –1710kHz

Signal-to-Noise Ratio

45dB

Usable Sensitivity

Loop 500µV

Distortion

1kHz, 50% Mod 0.8%

Selectivity

±10kHz, 30dB

Video Format

NTSC

Input Level/Impedance

1Vp-p/75 ohms

Output Level/Impedance 1Vp-p /75 ohms
Video Frequency 

10Hz–8MHz (–3dB)

Response

Power Requirement

AC 120V/60Hz

Power Consumption

72W idle, 694W maximum 
(2 channels driven)

Dimensions (Max)

Width

17.3 inches (440mm)

Height

6.5 inches (165mm)

Depth

17.1 inches (435mm)

Weight

31 lb (15.4 kg)

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

Harman Kardon is a registered trademark,and Power for the Digital Revolution is a
trademark,of Harman Kardon,Inc.

*Manufactured under license from Dolby Laboratories.
“Dolby,” “Pro Logic,” “AC-3”and the Double-D symbol are
trademarks of Dolby Laboratories. Confidential Unpublished
Works. ©1992–1999 Dolby Laboratories, Inc.All rights reserved.

DTS and DTS Surround are trademarks of Digital Theater Systems, Inc.
 

UltraStereo is a trademark of UltraStereo Corp.