AVR 260 - Harman Kardon Audio Service Manual (repair manual). Page 10

48

TROUBLEShOOTINg gUIDE

Unit does not function when Main 
Power Switch 0 is pushed

No AC Power

 

Make certain AC power cord is plugged into a live outlet

 

Check to see if outlet is switch controlled

 

Display lights, but no sound or 
picture

Intermittent input connections

 

Mute is on

 

Volume control is down

 

Make certain that all input and speaker connections are secure

 

Press Mute button 

 

Q

Turn up volume control

 

No sound from any speaker; 
Protect Warning in Display

Amplifier is in protection mode due to 

 

possible short
Amplifier is in protection mode due to 

 

internal problems

Check speaker-wire connections for shorts at receiver and speaker 

 

ends
Contact your local Harman Kardon service depot

 

No sound from surround or center 
speakers

Incorrect surround mode

 

Input is mono

 

Incorrect configuration

 

Stereo or Mono program material

 

Select a mode other than Stereo

 

There is no surround information from mono sources (except with 

 

Theater and Hall surround modes)
Check speaker mode configuration

 

Some surround modes may not create rear-channel information from 

 

nonencoded programs

Unit does not respond to remote 
commands

Weak batteries in remote

 

Wrong device selected

 

Remote sensor 

 

N

 is obscured

Change remote batteries

 

Press the AVR Selector 

 

W

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 Display D and Digital 
Audio stops

Digital audio feed paused

 

Resume play for DVD

 

/Blu-ray

Check that Digital Signal is fed to the Digital Input selected

 

No picture or on-screen 
information on the TV screen

AVR Resolution to Display is not correct, too 

 

high or too low.

Select correct Resolution as described on

 

 page 19 "Resolution To 

Display"

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 1. Next press and 
hold the OK button 5 for five seconds.
The unit will turn on automatically and show the word RESET in the Display 
for a few seconds. Then it reverts to normal ON status. 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.

harman/kardon

AVR 260/230 Service Manual

Page 10 of 131