troubleshooting
17
HK 3700/3770
Problems
Solutions
unit does not function when main power switch is turned on
• Make sure ac power cord is plugged into a live outlet.
• check to see whether outlet is switch-controlled.
no sound from the receiver
• Make certain that all input and speaker connections are secure.
• press the Mute button.
• turn up the volume control.
• press the correct Source Selector.
• press the Speaker 1 or Speaker 2 button.
• unplug the headphones.
no sound from any speaker
• check speaker-wire connections for shorts at receiver and speaker ends.
• contact your local Harman Kardon service center.
unit does not respond to remote commands
• change remote batteries.
• Make certain the front-panel sensor is visible to the remote or connect an optional
remote sensor.
Intermittent buzzing in tuner
• Move unit or antenna away from computers, fluorescent lights, motors or other
electrical appliances.
audio sources sound distorted
• Only plug a device into the phono Inputs if it is a turntable with a moving-magnet cartridge,
or if it is a turntable with a moving-coil cartridge with a phono preamp.
• do not use a turntable with any inputs other than the phono Inputs, unless it has a
moving-magnet-type cartridge and includes a phono preamp.
Troubleshooting
If your HK 3700/3770 stereo receiver does not perform the way you think it should, check whether the problem is covered in this section before contacting your dealer or a
Harman/Kardon representative.