Troubleshooting Guide

SYMPTOM

CAUSE

SOLUTION

 

 

 

Unit does not function when Main

• No AC Power

• Make certain AC power cord is plugged

Power Switch 1 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

 

connections are secure

 

Mute is on

• Press Mute button

 

• Volume control is down

• Turn up volume control

 

 

 

No sound from any speaker;

• Amplifier is in protection mode

• Check speaker-wire connections for shorts at receiver

light around Power switch 2 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 mono

• There is no surround information from mono sources (except with

 

 

Theater and Hall surround modes)

 

• Incorrect configuration

• Check speaker mode configuration

 

• Stereo or Mono program material

• Some surround modes may not create rear-channel information

 

 

from nonencoded programs

 

 

 

Unit does not respond to

• Weak batteries in remote

• Change remote batteries

remote commands

• Wrong device selected

• Press the AVR Selector 5

 

Remote sensor Ú is obscured

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

 

 

connect remote sensor

 

 

 

Intermittent buzzing in tuner

• Local interference

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

 

 

motors or other electrical appliances

 

 

 

Letters flash in the Channel Indicator

• Digital audio feed paused

• Resume play for DVD

Display $ and Digital Audio stops

 

• Check that Digital Signal is fed to the Digital Input selected

 

 

 

Processor Reset

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

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

To clear the AVR’s entire system memory including tuner presets, output level settings, delay times and speaker configuration data, first put the unit in Standby by pressing the System Power Control button 2. Next press and hold the Tone Mode button 8 for three seconds.

The unit will turn on automatically. 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.

48TROUBLESHOOTING GUIDE

Page 48
Image 48
Harman-Kardon AVR 147 Troubleshooting Guide, Processor Reset, Power Switch 1 is pushed, Remote sensor Ú is obscured

AVR 147 specifications

The Harman-Kardon AVR 147 is an entry-level receiver designed for those who seek quality audio and video experiences without overcomplicating their setup. This model is part of Harman-Kardon's well-known line of audio-video receivers, designed to provide an immersive home theater experience.

At the heart of the AVR 147 is its 5.1 channel surround sound capability, allowing for the connection of up to five speakers plus a subwoofer. This configuration enables a rich sound field that envelops listeners, ideal for both movies and music. The receiver can deliver up to 40 watts per channel, providing sufficient power for a modest home theater setup. The incorporation of Dolby Digital and DTS decoding ensures that users can enjoy their favorite movies with cinematic sound quality.

One of the main features of the AVR 147 is its user-friendly interface. The simplified remote control and intuitive on-screen menu make it easy for users to navigate settings and optimize sound performance. The receiver also offers multiple inputs, including HDMI, component, composite, and optical connections, ensuring compatibility with a wide range of audio and video sources, such as Blu-ray players, gaming consoles, and streaming devices.

The AVR 147 is equipped with Harman Kardon’s proprietary technologies, including the Advanced DSP (Digital Signal Processing), which enhances audio quality and clarity. Moreover, it supports various surround sound formats, allowing users to enjoy an enhanced home theater experience tailored to their preferences.

Another noteworthy characteristic is its sleek, modern design, which blends seamlessly into any entertainment setup. With its front panel display, users can easily see their settings and selections. The robust build quality of the AVR 147 ensures durability and longevity, making it a wise investment for those passionate about audio-visual technology.

In terms of video accessories, the AVR 147 can upscale standard-resolution video sources to provide a better viewing experience. Although it lacks some of the advanced features found in higher-end models, the AVR 147 remains a commendable choice for anyone seeking an effective and powerful home theater solution without excessive complexity. Whether you're watching movies, playing video games, or enjoying your favorite music, the Harman-Kardon AVR 147 is a reliable companion in elevating home entertainment experiences.