User manual SHERWOOD RX-4109

[. . . ] RX-4109 AM/FM STEREO RECEIVER Introduction READ THIS BEFORE OPERATING YOUR UNIT This symbol is intended to alert the user to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. CAUTION : TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. This symbol is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. WARNING : TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. Caution regarding installation Note : For heat dispersal, do not install this unit in a confined space such as a bookcase or similar enclosure. Do not block ventilation openings or stack other equipment on the top. Note to CATV System Installer : This reminder is provided to call the CATV system installer's attention to Article 820-40 of the NEC that provides guidelines for proper grounding and, in particular, specifies that the cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical. FCC INFORMATION This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. [. . . ] SPEAKER A, B SELECTOR BUTTONS These buttons allow you to select various combinations of speakers as follows: U drive A speakers, press only the SPEAKER A To button ("SPK A" is displayed). U drive B speakers, press only the SPEAKER B To button ("SPK B" is displayed). U drive both A and B speakers, press the To SPEAKER A(or B) and B(or A) buttons in order. ("SPK A B" is displayed). U When using headphones for private listening, press these buttons in order to switch off the speaker A and B ("SPK OFF" is displayed). HEADPHONE JACK Stereo headphones with a standard 1/4 inch plug can be plugged into this jack for private listening. INPUT SELECTOR BUTTONS Press the button to select the desired input source. TONE BUTTON When adjusting the tone (bass and treble), press this button to select the desired tone mode. U Each time this button is pressed, the tone mode is changed to bass or treble. BALANCE BUTTON When adjusting the sound volume balance, press this button to enter the balance mode. BALANCE, TREBLE/BASS UP/DOWN (¡, /¡, ¡ ª¡ ) BUTTONS ¤ At the balance mode, adjust the sound volume balance between left and right speakers with these buttons. ¤ At the desired tone mode, adjust the tone as desired with these buttons. TONE DIRECT BUTTON Press this button to listen to a program source without the tone effect. TUNING/PRESET MODE BUTTON Press this button to select the tuning mode or the preset mode. NUMERIC BUTTONS (0 ~ 9) Press these buttons to select or to store preset stations directly. TUNING/PRESET UP/DOWN (¡ª , + / ¡ , -) BUTTONS Press these buttons to tune in the desired stations. U Each time this button is pressed, the FM mode is changed to the stereo mode or the mono mode. PRESET SCAN BUTTON Press this button to scan the stations in the preset sequence. VOLUME CONTROL KNOB, UP/DOWN ( ¡ª / ¡ ) BUTTONS Adjust the volume to a comfortable listening level with this knob or these buttons. DIMMER BUTTON Press this button to select the brightness of the fluorescent display as desired. U Each time this button is pressed, the brightness of the fluorescent display changes as follows: ¤M ON ¤M dimmer ¤M OFF 20. SLEEP BUTTON Press this button to activate the sleep timer for a specified period of time. U Each time this button is pressed, the sleep time changes as follows: ¤M10 ¤M20 ¤M30 ¤M60 ¤M90 ¤MOFF Unit : minutes 21. [. . . ] 200 mV U Signal to noise ratio, IHF "A" weighted Phono(MM) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 dB Line(CD, TAPE, AUX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95 dB U Frequency response Phono(MM), RIAA, 30 Hz~20 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ¡ 3 dB Line(CD, TAPE, AUX), 20 Hz~100 kHz . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 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