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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.
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