Harman Kardon HK 3475 Owners Manual - Page 19

OPERATION Memory Backup This product is equipped with a memory backup system that preserves tuner presets and system configuration 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 without 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 system reset may clear the problem. If the system still does not respond, it may be necessary 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... No lights appear when POWER button is pressed No sound is heard No output from one or more channels Make sure that the... Unit is plugged into a live outlet. Main power switch is pressed in. 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. Cables are not defective: check/replace speaker cables. Tuner sound has a large amount of interference, or The "Stereo" display is not illuminated, or Tuner sound distorts and/or volume level is too low Tuner is intermittent or continuously buzzing or hissing Remote does not function correctly Cassette or CD sounds distorted Turntable sounds distorted Antenna is properly connected. Antenna is properly located. Antenna is set in the proper direction. Antenna is adequate to receive the desired station. Unit is away from fluorescent lights, TVs, motors and other electrical appliances. 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 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 has been plugged into the Phono Input §, as the other inputs are not compatible with turntable signal levels. OPERATION 19