Harman Kardon AVR 347 Service Manual Download Page 41

Page: 41 / 218

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 no sound

• Intermittent input connections

• Make certain that all input and speaker connections

or picture

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 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

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 configuration

• Stereo or Mono program material

• The surround decoder may not create center- or 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

• 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

Letters flash in the channel indicator

• Digital audio feed paused

• Resume play for DVD

display and digital audio stops

• Check that correct digital input is selected

Surround Back Speaker settings

• Multiroom system has been turned on, • Use the OSD menu system to access the MULTI ROOM

cannot be accessed, and test tone

and the surround back channels were

SETUP menu and change the SB Amps setting to MAIN.

does not play through Surround

reassigned to multiroom operation

Back Speakers

The XM Preview Channel (001)

• XM antenna is not plugged in

• Make sure you are using a home audio XM antenna module

is silent

designed for use with XM Ready home audio equipment,
and that the module is plugged into the XM Radio Jack
on the rear panel of the receiver.

• XM antenna is not located in such

• The XM Antenna module needs to be placed with an

a way as to enable reception

unobstructed view of the southern sky, or within range of an
XM terrestrial repeater. If necessary, purchase an extension
cable from your XM Radio dealer.

Unable to activate Program mode

• Input Selector not held for at least

• The selector will light as you initially press it, and go dark

on remote

3 seconds.

as you hold it down. Wait at least 3 seconds for the selector
to light up again, and the Program LED will flash.

Unable to assign a device to HDMI

• Invalid device assignment attempted.

• Only the DVD, VCR (includes DVR), cable or satellite (CBL/SAT

1 or 2 selectors

selector) devices may be assigned to the HDMI 1 or 2 selectors.

Remote behaves erratically

• Buttons are pressed too hard.

• Always press remote control buttons as gently as possible.

Additional information on troubleshooting possible problems with your AVR 347, or 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 at www.harmankardon.com.

TROUBLESHOOTING GUIDE

AVR347