Read Harman Kardon AVR 158 (serv.man4) Service Manual online
24
AVR 158
Troubleshooting
Symptom
Cause
Solution
unit does not function when Main power switch is
turned on
no Ac power
•
ensure that the power cord is plugged into a live Ac
•
power outlet
check if the Ac outlet is switch-controlled
check if the Ac outlet is switch-controlled
•
Front-panel Message 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; protect message
appears on Message display
Amplifier is in protection mode due to possible short
•
circuit
Amplifier is in protection mode due to internal problems
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 centre
contact your local harman kardon service centre
•
no sound from centre 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 centre- or
•
surround-channel information from nonencoded stereo
programs
unit does not respond to remote control commands
weak batteries in remote
•
AVr not selected
•
remote sensor is obscured
•
change batteries in remote
•
press the Setup/AVr button
•
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 aerial 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
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
Troubleshooting
0296CSK - HK (x65Series) AVR158-230 OM [HKP1992], WORK05.indd 24
30/06/11 14:00:05
Harman Kardon
AVR 156+158/230V Service Manual
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