Harman Kardon HK210 Owners Manual - Page 5

SPEAKER SWITCH The speaker switch is used to disconnect your speakers from your receiver while you are listening to the stereo headphones. To defeat the speakers, throw the switch to the "OFF" position. TAPE MONITOR SWITCH If your tape recorder has a special monitoring head, throwing this switch to the "ON" position will enable you to listen to your tapes immediately after they are recorded. When not in use the switch must be in the "OUT" position. STEREO HEADPHONE RECEPTACLE The stereo headphone receptacle located on the front panel will accept any headphone with any impedance rating. The headphone receptacle is "on" at all times. If you wish to listen to the headphones alone, see the paragraph on "SPEAKER SWITCH". STEREO INDICATOR LIGHT A stereo indicator light is located directly behind the FM dial glass and operates in conjunction with the FM Stereo position of the Function switch. The light visually indicates the reproduction of FM stereo through your receiver. To tune for FM stereo proceed as follows: 1. Place the function selector switch in the FM STEREO position. 2. Tune carefully to the desired station, using your tuning meter for maxi- mum deflection. Your stereo indicator light will now glow if you are tuned to a stereo program. If the light is OFF, the program you are listening to is being broadcast monophonically. SELECTING MONOPHONIC OR FM STEREO BROADCASTS Under normal use for all FM broadcasts the function Selector Switch should be placed in the FM STEREO position. Your receiver is equipped with a stereo sensing circuit which can automatically determine if your unit is receiving monophonic or stereophonic broadcasts, and then automatically adjust the mode of operation. If the station is transmitting stereo, your receiver will automatically switch in the multiplex section and you will hear the broadcast in full stereo. Should the station conclude broadcasting in stereo, your receiver will automatically switch back to monophonic reception. Should you receive a weak stereo signal whose quality has been degraded by noise or poor signal conditions, and you wish to listen to this stereo broadcast, monophonically, place the function selector switch in the FM MONO position. DIAL SCALE The Dial Scale on your receiver is marked with three scales, an FM frequency scale (88-108 MC), an AM frequency scale (55-160KC) and a logging scale (0-100). Since most FM stations operate on frequencies which are not whole numbers (such as 96MC as compared to 96.3) ideally each megacycle division on the frequency scale should be divided into 10 parts to enable the user to pinpoint the location of the station. This would require a dial scale which would be longer than the front panel. The logging scale which is divided into 100 equal parts provides a means of finding your favorite station, once you have noted its position on the logging scale. For example, in New York City, WQXR operates on 96.3 MC. After locating this station through the use of the frequency scale (between 96 and 98 MC), you find that the pointer may fall on 46 on the logging scale. Make a note of this setting and when you next want to tune to WQXR, all that is necessary is to set the pointer to 46 on the logging scale. EQUALIZATION In order to achieve good reproduction of the wide range of frequencies in music and to make necessary adjustments for the limitations of the recording technique, record manufacturers have found it necessary to modify the actual frequency response of the music while it is being recorded. Thus, to avoid overcutting and consequent distortion, a measured and deliberate reduction is effected in low frequency response by selecting a "turnover frequency" and by recording attenuated response below that point. To assure optimum signal to noise at the high frequency end when the record is played at home, the highs are deliberately exaggerated during the recording process. A measured and deliberate boost is effected above a certain frequency. This combination of deliberate exaggeration at the low and high ends of the frequency response can be expressed in a recording curve. When the record is played a mirror image of that curve should be available so that the ideal "flat" response may be achieved. The PHONO positions of the Function Selector automatically select the proper equalization that is required. FUSES Your receiver is protected by a 2 1/2 amp-3AG fuse. In the event of fuse failure replace ONLY with the same type used. Replacing with a fuse of a higher rating will not protect the instrument and may result in severe damage. SERVICE If this instrument should not perform properly during the first two (2) years after date of purchase, contact the factory for instructions. The factory has many authorized warranty service stations in the United States. To aid us in selecting a service station convenient to you, it would be helpful if you would indicate what major city is closest to your home. Please write our Customer Service Department, Harman-Kardon, Incorporated, Plainview, New York 11803. Be sure to include the model and serial number of the unit. A brief description of your other components is often of help in answering your questions. DO NOT return this instrument to Harman-Kardon without first receiving authorization.