DOWNLOAD Harman Kardon AVR 151 (serv.man2) Service Manual ↓ Size: 18.64 MB | Pages: 127 in PDF or view online for FREE

29

ENGLISH

AVR

The AVR’s System Settings menu lets you customize in what way many of the AVR’s 
features operate. Press the OSD/Menu button and navigate to the System line. Press the 
OK button to display the System Settings menu. 

Panel Timeout: This setting allows you to set the AVR’s front-panel display to automatically 
turn off after remaining on for a predertimined time (3 – 10 seconds) each time you use 
a control. Set this to “Off” to have the display remain on continually.

Auto Power Off: This setting allows you to set the AVR to automatically switch to the Off 
mode after being in the Sleep mode for a predetermined time (1 – 8 hours) and switch 
to the Sleep mode after this amount of time if a source with an analog audio input or 
internal source (FM, AM, USB, iPod, Home Network, vTuner or DMR) is active. See Power 
Indicator/Power Button, on page 5, for more information.

Menu Timeout: This setting allows you to set the amount of time (20 – 50 seconds) a 
menu screen will remain on after the last adjustment. Set this to “Off” to have the menus 
remain on continually until you press the OSD/Menu button.

Status Message: When the AVR is turned on, the volume is adjusted, the source is 
changed or a change in the input signal is detected, a status message will be displayed 
on the TV screen. Select how long the message remains visible, from 2 to 10 seconds, 
with a default of 3 seconds. Select “Off” if you do not wish to see the status messages on 
the TV screen (they will still appear on the AVR’s front-panel message display).

Volume Default and Default Volume Setting: These two settings are used together to 
program the volume level when you turn on the AVR. Set Volume Default to On, and then 
set the Default Volume Setting to the desired turn-on volume. When Volume Default is 
set to Off, the AVR will turn on at the last-used volume setting from the previous listening 
session.

HDMI Audio to TV: This setting determines whether HDMI audio signals are passed 
through the HDMI Monitor Out connector to the video display. In normal operation, leave 
this setting at Off, as audio will be played through the AVR. To use the TV by itself, without 
the home theater system, turn this setting to On. In this case you will need to mute the 
TV’s speakers (or switch the setting to Off) when using the AVR for audio.

HDMI Link: This setting allows the communication of control information among the 
HDMI devices in your system. Turn this setting to On to allow control communication 
between the HDMI devices; turn the setting to Off to forbid control communication. When 
this setting is set to Off, the TV source audio input is set to Optical. When this setting is 
set to On, the TV source audio input is set to HDMI ARC.

Software Update: If a software upgrade is released for your AVR, installation instructions 
will be available in the Product Support section of the Web site or from Harman Kardon 
customer service. At that time, you may use this submenu to install the upgrade 
software.

The sleep timer sets the AVR to play for up to 90 minutes and then turn off 
automatically.

Press the Sleep button on the remote, and the time until turn-off will be displayed. Each 
additional press of the Sleep button decreases the play time by 10 minutes, from 90 to 
10 minutes. The SLEEP OFF setting disables the sleep timer.

When the sleep timer has been set, the front-panel display will automatically dim to half 
brightness.

If you press the Sleep button after the timer has been set, the remaining play time will be 
displayed. Press the Sleep button again to change the play time.

If the AVR behaves erratically after a power surge, unplug the AC power cord for at least 
3 minutes. Plug the cord back in and turn the AVR on. If this procedure doesn’t help, reset 
the AVR’s processor as described below.

NOTE: A processor reset erases all user configurations, including speaker and level 
settings, and tuner presets. After a reset, reenter all of these settings from your entries 
in the Appendix worksheets.

1.  Press the front-panel Standby/On switch for more than three seconds to turn the AVR 

off (the Power Indicator will turn amber).

2.  Press and hold the front-panel Surround Modes button for at least 5 seconds until the 

RESET message appears on the front-panel Message Display.

NOTE: After performing a processor reset, wait at least 1 minute before pressing any 
Source Selector buttons.

If the AVR does not function correctly after a processor reset, contact an authorized 
Harman Kardon service center for assistance. Authorized service centers may be located 
by visiting our Web site at www.harmankardon.com.

System Settings

Harman Kardon

AVR 151 Service Manual

Page 9 of 131

33

ENGLISH

AVR

Troubleshooting

Unit does not function

•  No AC power

•  Ensure that the power cord is plugged into a live AC 

power outlet

•  Check if the AC outlet is switch-controlled

Front-panel display lights, but there’s no sound or 

picture

•  Intermittent input connection
•  Mute is on
•  Volume control is turned down

•  Secure all input and speaker connections
•  Press Mute button
•  Turn up Volume control

No sound from any speaker

•  Amplifier is in protection mode due to possible short 

circuit

•  Amplifier is in protection mode due to internal 

problems

•  Check all speaker wires at speaker and AVR 

connections for crossed wires

•  Contact your local Harman Kardon service center

No sound from center or surround speakers

•  Incorrect surround mode
•  Program material is monophonic
•  Incorrect speaker configuration
•  Program material is stereo

•  Select a surround mode other than stereo
•  Mono programs contain no surround information
•  Check the speaker configuration in the setup menu
•  The surround decoder may not create center- or 

surround-channel information from nonencoded 

programs 

Unit does not respond to remote control commands

•  Weak batteries in remote
•  Remote sensor is obscured

•  Change batteries in remote
•  Ensure that the AVR’s front-panel remote sensor is in 

the line of sight of the remote

Intermittent buzzing in tuner

•  Local interference

•  Move the AVR or antenna away from computers, 

fluorescent lights, motors or other electrical appliances

Unable to activate remote control Programming mode •  Source Selector button is not held for at least 3 

seconds

•  Be sure to hold the Source Selector button for at least 

3 seconds

Unable to establish network connection

•  AVR network programming requires rebooting

•  Cycle the AVR into the Off mode, and then turn it on 

again

Additional information on troubleshooting possible problems with your AVR and installation-related issues may be found in the list of “Frequently Asked Questions,” which is 

located in the Product Support section of our Web site: www.harmankardon.com

Harman Kardon

AVR 151 Service Manual

Page 10 of 131

34

AVR

Specifications

Stereo power:

75W per channel, two channels driven @ 

6/8 ohms, 1kHz, <0.9% THD

Multichannel power:

75W per channel, two channels driven @  

6/8 ohms, 1kHz, <0.9% THD

Input sensitivity/impedance:

250mV/27k ohms

Signal-to-noise ratio (IHF-A):

100dB

Surround system adjacent channel 

separation:

Dolby Pro Logic/DPLII: 40dB 

Dolby Digital: 55dB 

DTS: 55dB

Frequency response (@ 1W):

10Hz – 130kHz (+0dB/–3dB)

High instantaneous current  

capability (HCC): 

±28 amps

Transient intermodulation  

distortion (TIM):

Unmeasurable

Slew rate:

40V/μsec

Frequency range:

87.5 – 108.0MHz

Usable sensitivity IHF:

1.3μV/13.2dBf

Signal-to-noise ratio (mono/stereo): 70dB/68dB

Distortion (mono/stereo):

0.2%/0.3%

Stereo separation:

40dB @ 1kHz

Selectivity (±400kHz):

70dB

Image rejection:

80dB

IF rejection:

80dB

Frequency range:

520 – 1710kHz (AVR 1510) 

522 – 1620kHz (AVR 151)

Signal-to-noise ratio:

38dB

Usable sensitivity (loop):

500µV

Distortion (1kHz, 50% mod):

1.0%

Selectivity (±10kHz):

30dB

Television format:

NTSC (AVR 1510);  

PAL (AVR 151)

Input level/impedance:

1Vp-p/75 ohms

Output level/impedance:

1Vp-p/75 ohms

Video frequency response (composite 

video):

10Hz – 8MHz (–3dB)

HDMI:

HDMI 1.4

Power requirement:

120V AC/60Hz (AVR 1510);  

220V – 240V AC/50Hz – 60Hz (AVR 151)

Power consumption:

<0.5W (standby);  

410W maximum

Dimensions (W x H x D): 

17-5/16" x 4-3/4" x 11-13/16"  

(440mm x 121mm x 300mm)

Weight

10 lb (4.6kg)

Depth measurement includes knobs, buttons and terminal connections. 

Height measurement includes feet and chassis.

Harman Kardon

AVR 151 Service Manual

Page 11 of 131

  

2. Package Drawing

AVR151/230

MANUAL ASS'Y

BOX,OUT CARTON

3

4

1

DESCRIPTION

NO

CPS1A930

CQXAVR151/230

CPG1A972W

1

1

Q,ty

PARTS NO.

CPS1A931

PAD,RIGHT

2

1

PAD,LEFT

SET

AVR151/230SET

1

5

1

POLY BAG

NO

DESCRIPTION

PARTS NO.

Q,ty

1

2

3

4

5

6

7

1

1

CPB1A190Z

POLY BAG

1. Instruction manual ass'y - Accessories(CQXAVR151/230)

SHEET,QUICK START GUIDE

8

CQE1A570Z

1

CABR03PPB

CSA1A039Z

ANT, AM LOOP(9.5uH/5T)

BATTERY

1

2

FM 1 POL ANT

CSA1A018Z

1

2

BATTERY  ASS'Y

4

9

3

AM LOOP ANTENNA ASS'Y

6

FM 1 POLE ANT(UL)

7

8

5

1

9

SNOW PAD (R)

4

BOX ,OUT CARTON

6

SET

5

SNOW PAD (L)

3

MANUAL ASS'Y

1

CJA2B120Z

1

CORD,POWER(PLUG+SOCKET)

SHEET,SAFETY

CQE1A601Z

1

TRANSMITTER ASS'Y

REMOCON

REMOCON ASS'Y

CARTAVR151-HK

1

SHEET,QUICK START GUIDE

STAPLE

CPL0905

3

STAPLE

SHEET,SAFETY

CORD , POWER(EUR)

Harman Kardon

AVR 151 Service Manual

Page 12 of 131