OPERATION
OPERATION 19
Memory Backup
This product is equipped with a memory backup sys-
tem that preserves tuner presets and system configu-
ration information if the unit is accidentally unplugged
or subjected to a power outage. The unit’s memory is
stored in an EEPROM, and thus the HK 3475 will
retain information such as programmed presets with-
out being connected to a main power source virtually
indefinitely.
Processor Reset
In the rare case where the unit’s operation or the
displays seem abnormal, the cause may involve
the erratic operation of the system’s memory or
microprocessor.
To correct this problem, first unplug the unit from the
AC wall outlet and wait at least three minutes. After the
pause, reconnect the AC power cord and check the
unit’s operation. If the system still malfunctions, a sys-
tem reset may clear the problem.
If the system still does not respond, it may be neces-
sary to perform a complete reset.To reset the system,
first turn the HK 3475 off by pressing the Main
Power Switch 1 and then releasing it so that it
extends out beyond the front panel and the word
“OFF” is visible in red at the top of the switch.
Next, press and hold the T-Mon and CD Input
Selector Buttons 9#on the front panel ONLY.
While holding these buttons in, press the Main Power
Switch 1 in until it latches, so that the button is flush
with the front panel.
The Main Information Display Û will briefly show the
word RESET, and then return to normal operation.
When the system is reset in this fashion, all tuner
presets will be lost and must be reentered.
If the system is still operating incorrectly, there may
have been an electronic discharge or severe AC line
interference that has corrupted the memory or
microprocessor.
If these steps do not solve the problem, consult your
dealer or an authorized Harman Kardon service center.
Troubleshooting Guide
This unit is designed for trouble-free operation. Most problems users encounter are due to operating errors. If you have a problem, first check this list for a possible solution. If
the problem persists, consult your authorized Harman Kardon service center.
If the problem is... Make sure that the...
No lights appear when POWER button is pressed Unit is plugged into a live outlet.
Main power switch is pressed in.
No sound is heard Unit has not been muted.
Correct input function selector button has been pressed.
Volume is turned up.
Speakers have been turned on using the Speaker Selectors.
No output from one or more channels Cables are not defective: check/replace speaker cables.
Tuner sound has a large amount of interference, or Antenna is properly connected.
The “Stereo” display is not illuminated, or Antenna is properly located.
Tuner sound distorts and/or volume level is too low Antenna is set in the proper direction.
Antenna is adequate to receive the desired station.
Tuner is intermittent or continuously buzzing or hissing Unit is away from fluorescent lights, TVs, motors and
other electrical appliances.
Remote does not function correctly Batteries are not weak, and replace them if necessary.
Correct device page has been selected by pressing the Source Selector Key ç.
Remote sensor is not obstructed, and remote is pointing directly at sensor at
an angle of no more than 30 degrees. Also, check for fluorescent lighting, which
may be interfering with the IR transmission.
Remote has been reprogrammed correctly. If you are in doubt, reset the remote
to the factory default programming using the procedure outlined on page 18.
Cassette or CD sounds distorted Cassette deck or CD player has not been plugged into the Phono Input §
(only use the outputs of a turntable or tonearm with the Phono Input §).
Turntable sounds distorted Turntable has been plugged into the Phono Input §, as the other inputs are
not compatible with turntable signal levels.
