Troubleshooting Guide; Processor Reset - Harman Kardon HK3390 Service Manual

HK3390

TROUBLESHOOTING GUIDE

SYMPTOM
Unit does not function when Main
Power Switch is pushed
Display lights, but there's no
sound or picture
No sound from any speaker;
light around Power Switch is red
Unit does not respond to
remote commands
Intermittent buzzing in tuner
Audio sources sound distorted
No video image
In addition to the items shown above, additional information on troubleshooting possible problems with your HK 3390, or on 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 at www.harmankardon.com.

Processor Reset

If you wish to fully reset the HK 3390 to its factory defaults, or if it behaves erratically after a power surge, first turn the
Master Power Switch off and unplug the AC power cord for at least three minutes. Plug the cord back in and turn the
receiver back on. If this doesn't help, you may want to try a system reset.
NOTE: A system reset erases all user configurations, including tuner presets. After a reset, you will need to reenter all of
these settings.
Place the receiver in Standby mode by pressing the Power Switch so that the Power Indicator turns amber. Simultaneously
press and hold the front-panel Preset Scan and Mute Buttons for at least five seconds until the software version number,
followed by the RESET message, appear in the display. The unit will return to Standby mode, and you may power it on.
Memory
If the HK 3390 is unplugged or experiences a power outage, it will retain user settings indefinitely.
24
CAUSE
• No AC power
• Intermittent input connections
• Mute is on
• Volume Control is down
• Desired source not selected
• Speakers deactivated
• Headphones are in use
• Jumper pins between Preamp Outputs • Replace jumper pins or, if external amplifier
and Main-Amp Inputs were removed
• Amplifier is in Protection mode
due to possible short
• Amplifier is in Protection mode
due to internal problems
• Weak batteries in remote
• Remote sensor is obscured
• Local interference
• CD player or other audio device
incorrectly plugged into Phono Inputs
• Turntable not plugged into Phono Inputs • Do not use a turntable with any inputs other than the Phono
• Source device's video output not
connected to HK 3390
• Wrong source selected
• Video Monitor Output not connected
to display
• Wrong video input on video
display selected
• Audio-only source selected
22
SOLUTION
• Make certain AC power cord is plugged into
a live outlet
• Check to see whether outlet is switch-controlled
• Make certain that all input and speaker connections
are secure
• Press Mute Button
• Turn up Volume Control
• Press correct Source Selector
• Press Speaker 1 or Speaker 2 Button
• Unplug headphones
is in use, make sure it is turned on
• Check speaker-wire connections for shorts at receiver and
speaker ends
• Contact your local Harman Kardon service center
• Change remote batteries
• Make certain front-panel sensor is visible to remote
or connect an optional remote sensor
• Move unit or antenna away from computers, fluorescent
lights, motors or other electrical appliances
• 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
Inputs, unless it has a moving-magnet-type cartridge and
includes a phono preamp
• Connect the source's composite video output to
the correct video input on the HK 3390
• Press the correct Source Selector on the HK 3390
• Connect the HK 3390's Video Monitor Output to a composite
video input on your television or video display
• Consult the manual for your television for instructions on
selecting the correct video input
• It is not possible to view video while listening to the
Phono, Tape/CDR or CD sources or to the tuner
harman/kardon