Read Harman Kardon AVR 85 (serv.man4) User Guide / Operation Manual online
Troubleshooting
AVR85 120 rev (g) 6/14/97
35
SYMPTOM
No front panel lights when power switch
is pressed
is pressed
Display lights, but no sound or picture
No sound from any speaker. Light around
power switch is red
power switch is red
No sound from surround or center speakers
No On-Screen Control Menus
Unit does not respond to remote commands
Intermittent buzzing in tuner
CAUSE
• No AC Power
• Intermittent input connections
•
Mute
is on
• Volume control is down
• Amplifier is in protection mode
due to possible short
• Amplifier is in protection mode
due to internal problems
• Incorrect surround mode
• Input is monaural
• Incorrect configuration
• TV input is S-Video
• Weak batteries in remote.
• Remote is in
• Remote is in
Learn
position
• Remote sensor is obscured
• Local interference
SOLUTION
• Make certain AC power cord is plugged
into a live outlet.
• Check to see if outlet is switch controlled.
• Make certain that all input and speaker
connections are secure.
• Press
Mute
button.
• Turn up volume control.
• Check speaker wire connections
at receiver and speaker ends for shorts.
• Contact your local Harman Kardon
service depot.
• Select a mode other than Stereo or
Monaural.
• There is no surround information from
mono sources.
• Check configuration in
SETUP MENU1
.
• Change TV connection and input to
Composite Video. The menus are available
ONLY on Composite Video.
ONLY on Composite Video.
• Change remote batteries.
• Slide
• Slide
Use/Learn
switch to
Use
.
• Make certain front panel sensor is visible
to remote.
• Move unit or antenna away from computers,
fluorescent lights, TVs, motors or other
electrical appliances.
electrical appliances.
Troubleshooting Guide
AVR85 om (g) 9/16/98 11:21 AM Page 35
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