User manual SHERWOOD RX-770

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). NO USER-SERVICEABLE PARTS INSIDE. 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. 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 pracitcal. 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. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: Reorient or relocate the receiving antenna. Increase the separation between the equipment and receiver. Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio/TV technician for help. Caution : Any changes or modifications in construction of this device which are not expressly approved by the party responsible for compliance could void the the user's authority to operate the equipment. FOR YOUR SAFETY Units shipped to the U.S.A and Canada are designed for operation on 120 V AC only. Safety precaution with use of a polarized AC plug. However, some products may be supplied with a nonpolarized plug. U.S.A CANADA 120 V CAUTION ATTENTION · · · · · · · · : To prevent electric shock, match wide blade of plug to wide slot, fully insert. : Pour éviter chocs électriques, introduire la lame la plus large de la fiche dans la borne correspondante de la prise et pousser jusqu' au fond. Avoid high temperatures. Allow for sufficient heat dispersion when installed on a rack. Keep the set free from moisture, water, and dust. Do not let foreign objects in the set. Handle the power cord carefully. Hold the plug when unplugging the cord. Unplug the power cord when not using the set for long periods of time. Do not obstruct the ventilation holes. Do not let insecticides, benzene, and thinner come in contact wth the set. Never disassemble or modify the set in any way. 2 SAFETY INSTRUCTIONS 1. Read Instructions - All the safety and operating instructions should be read before the product is operated. 2. Retain instructions - The safety and operating instructions should be retained for future reference. 3. Heed Warnings - All warnings on the product and in the operating instructions should be adhered to. 4. Follow Insturctions - All operating and use instuctions should be followed. 5. Cleaning - Unplug this product from the wall outlet before cleaning. Do not use liquid cleaners or aerosol cleaners. Use a damp cloth for cleaning. 6. Attachments - Do not use attachments not recommended by the product manufacturer as they may cause hazards. 7. Water and Moisture - Do not use this product near water - for example, near a bath tub, wash bowl, kitchen sink, or laundry tub; in a wet basement, or near a swimming pool; and the like. 8. Accessories - Do not place this product on an unstable cart, stand, tripod, bracket, or table. The product may fall, causing serious injury to a child or adult, and serious damage to the product. Use only with a cart, stand, tripod, bracket, or table recommended by the manufacturer, or sold with the product. Any mounting of the product should follow the manufacturer's insturctions, and should use a mounting accessory recommended by the manufacturer. 9. A product and cart combinaion should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the product and cart combination to overturn. 10. Ventilation - Slots and openings in the cabinet are provided for ventilation and to ensure reliable operation of the product and to protect it from overheating, and these openings must not be blocked or covered. The openings should never be blocked by placing PORTABLE CART WARNING the product on a bed, sofa, rug, or other similar surface. This product should not be placed in a built-in installation such as a bookcase or rack unless proper ventilation is provided or the manufacturer's intructions have been adhered to. 11. Power Sources - This product should be operated only from the type of power source indicated on the marking label. If you are not sure of the type of power supply to your home, consult your product dealer or local power company. For porducts intended to operate from battery power, or other sources, refer to the operating instructions. 12. Grounding or Polarization - This product may be equipped with a polarized alternating-current line plug (a plug having one blade wider than the other). This plug will fit into the power outlet only one way. This is a safety feature. If you are unable to insert the plug fully into the outlet, try reversing the plug. If the plug should still fail to fit, contact your electrician to replae your obsolete outlet. Do not defeat the safety purpose of the polarized plug. Alternate Warnings - This product is equipped with a three-wire grounding-type plug, a plug having a third(grounding) pin. This plug will only fit into a grounding-type power outlet. this is a safety feature. If you are unable to insert the plug into the outlet, contact your electrician to replace your obsolete outlet. Do not defeat the safety purpose of the gronding-type plug. 13. Power-Cord Protection - Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particlar attention to cords at plugs, convenience receptacles, and the point where they exit from the product. 14. Outdoor Antenna Grounding - If an outside antenna or cable system is connected to the product, be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built-up static charges. Article 810 of the National Electrical Code, ANSI/NFPA 70, provides information with regard to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna-discharge unit, connection to grounding electrodes, and requirements for the grounding electrode. See Figure 1. Figure 1 Example of antenna grounding as per National Electrical Code, ANSI/NFPA 70 ANTENNA LEAD IN WIRE GROUND CLAMP ANTENNA DISCHARGE UNIT (NEC SECTION 810-20) ELECTRIC SERVICE EQUIPMENT GROUNDING CONDUCTORS (NEC SECTION 810-21) GROUND CLAMPS POWER SERVICE GROUNDING ELECRODE SYSTEM (NEC ART 250, PART H) NEC-NATIONAL ELECTRICAL CODE 15. Lightning - For added protection for this product during a lightning storm, or when it is left unattended and unused for long periods of time, unplug it from the wall outlet and disconnect the antenna or cable system. This will prevent damage to the product due to lightning and power-line surges. 16. Power Lines - An outside antenna system should not be located in the vicinity of overhead power lines or other electric light or power circuits, or where it can fall into such power lines or circuits. When installing an outside antenna system, extreme care should be taken to keep from touching such power lines or circuits as contact with them might be fatal. 17. Overloading - Do not overload wall outlets, extension cords, or integral convenience receptacles as this can result in a risk of fire or electric shock. 18. Object and Liquid Entry - Never push objects of any kind into this product through openings as they may touch dangerous voltage points or short-out parts that could result in a fire or electric shock. Never spill liquid of any kind on the product. 19. Servicing - Do not attempt to service this product yourself as opening or removing covers may expose you to dangerous voltage or other hazards. Refer all servicing to qualified service personnel. 20. Damage Requiring Service - Unplug this product form the wall outlet and refer servicing to qualified service personnel under the following conditions: a) When the power-supply cord or plug is damaged, b) If liquid has been spilled, or objects have fallen into the product, c) If the product has been exposed to rain or water, d) If the product does not operate normally by following the operating instructions. Adjust only those controls that are covered by the operating instructions as an improper adjustment of other controls may result in damage and will often require extensive work by a qualified technician to restore the product to its normal operation. e) If the product has been dropped or damaged in any way, and f) When the product exhibits a distinct change in performance this indicates a need for service. 21. Replacement Parts - When replacement parts are required, be sure the service technician has used replacement parts specified by the manufacturer or have the same characteristics as the original part. Unauthorized substitutions may result in fire, electric shock, or other hazards. 22. Safety Check - Upon completion of any service or repairs to this product, ask the service technician to perform safety checks to determine that the product is in proper operating condition. 23. Wall or Ceiling Mounting - The product should be mounted to a wall or ceiling only as recommended by the manufacturer. 24. Heat - The product should be situated away from heat sources such as radiators, heat registers, stoves, or other products (including amplifiers) that produce heat. 3 CONTENTS Introduction READ THIS BEFORE OPERATING YOUR UNIT................................................................................... 2 SAFETY INSTRUCTIONS ......................................................................................................................... 3 System Connections ....................................................................................................................................... 5 Front Panel & Remote Controls ................................................................................................................. 7 REMOTE CONTROL OPERATION RANGE .......................................................................................... 9 LOADING BATTERIES ............................................................................................................................ 9 Operations LISTENING TO A PROGRAM SOURCE ............................................................................................... 10 LISTENING TO RADIO BROADCASTS ............................................................................................... 12 RECORDING ............................................................................................................................................ 14 OTHER FUNCTIONS .............................................................................................................................. 14 Troubleshooting Guide ............................................................................................................................... 15 Specifications ................................................................................................................................................. 16 4 System Connections · Do not plug the AC input cord into the wall AC outlet until all connections are completed. · Be sure to connect the white RCA pin cords to the L(left) and the red RCA pin cords to the R(right) jacks when making audio connections. · Change the position of the FM indoor antenna until you get the best reception of your favorite FM stations. · A 75 outdoor FM antenna may be used to further improve the reception. Disconnect the indoor antenna before replacing it with the outdoor one. · Place the AM loop antenna as far as possible from the receiver, TV set, speaker cords and the AC input cord and set it to a direction for the best reception. · If the reception is poor with the AM loop antenna, an AM outdoor antenna can be used in place of the AM loop antenna. · Make connections firmly and correctly. If not, it can cause loss of sound, noise or damage to the receiver. · If the electricity fails or the AC input cord is left unplugged for more than 2 weeks, the memorized contents will be cleared. Should this happen, memorize them again. PHONO MADE IN CHINA DESIGNED IN USA R L SER. NO L CD R TAPE AUX A L L B R R CONNECTING ANTENNAS FM GND CONNECTING AUDIO COMPONENTS PHONO L CD R TAPE AUX FM L L R R B A 5 DIGILINK R L A B R L 6 Front Panel & Remote Controls 3 14 11 12 23 24 7 8 9 DAS DISCRETE AMPLIFIER STAGE ST TUNED REMOTE SENSOR PRESET MEM KHz MHz SLEEP A B 1 5 4 6 10 17 DIGI LINK III System Remote Controls POWER ON POWER ON STANDBY SPEAKER DIMMER STAN SL 1 4 SPEAKER DIMMER SLEEP 2 19 20 AUX PHONO REPEAT REPEA A/B TUNER A B TAPE AUX A CD B TAPE APE 6 21 A DECK SEL. CD INTRO TAPE 22 BASS · You can remotely control not only this receiver but also Sherwood compatible components bearing the DIGI LINK II or III logo. · For system remote control operation, first make the DIGI LINK connections. · In the DIGI LINK III remote control system, if A pressing PLAY, etc. on CD player or tape deck, CD B or TAPE is selected automatically without selecting the input source and then PLAY, etc. starts. CD PH REPEAT A/B TU IN DECK SEL. TREBLE BASS B 9-b 12 14 15 TREBLE + + T/P MUTE VOL. 17 TUNE 18 Notes: · Some functions for a CD player or tape deck may not be available. · For details about functions, refer to the operating instructions of each component. T/P MUTE VOL. TUNE MEMO TUNE FM MODE VOL. P .SCAN TUNE MEMO + 14 11 16 17 FM MODE VOL. P .SCAN 1 2 3 4 5 6 1 2 3 4 5 7 8 9 0 13 6 7 8 9 0 REMOTE CONTROL RM-110 REMOTE CONTROL RM-117 7 POWER BUTTON In the standby mode, press this button, then this unit is turned on to enter the operating mode. STANDBY BUTTON In the operating mode, press this button or the POWER button on the front panel, then this unit is turned off to enter the standby mode. STANDBY INDICATOR SPEAKER A, B SELECTOR BUTTONS These buttons allow you to select various combinations of speakers as follows: To drive A speakers, press only the SPEAKER A button ("SPK A" is displayed). To drive B speakers, press only the SPEAKER B button ("SPK B" is displayed). To drive both A and B speakers, press the SPEAKER A(or B) and B(or A) buttons in order.("SPK A B" is displayed). 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. 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 ( ) 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. MEMORY BUTTON Press this button to store preset stations. 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( BUTTONS Press these buttons to tune in the desired stations. FM MODE BUTTON Press this button to select the desired FM mode. 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( ) BUTTONS Adjust the volume to a comfortable listening level with this knob or these buttons. MUTE BUTTON Press this button to temporarily mute the sound. Press again to resume the previous sound level. DIMMER BUTTON Press this button to select the brightness of the fluorescent displays as desired. Each time this button is pressed, the brightness of all fluorescent displays changes together as follows: ON dimmer OFF SLEEP BUTTON Press this button to activate the sleep timer for a specified period of time. Each time this button is pressed, the sleep time changes as follows: 10 20 30 60 90 OFF Unit : minutes CD PLAYER SECTION - to begin play - to pause play REPEAT A/B - to play a specific part repeatedly , - to skipping backward or forward - to stop play INTRO - to preview each track only for 10 seconds 8 TAPE DECK SECTION DECK SELECTOR A, B- for selecting deck A or B , - to begin reverse or forward side playback. , - to wind up the tape reversely or forwardly. - for recording. - to stop playback or recording. REMOTE SENSOR This receives the signals from the remote control unit. FLUORESCENT DISPLAY FLUORESCENT DISPLAY STEREO INDICATOR TUNED INDICATOR MEMORY INDICATOR ST TUNED PRESET MEM KHz MHz SLEEP PRESET NUMBER, SLEEP TIME DISPLAY INPUT, FREQUENCY, VOLUME LEVEL, OPERATING INFORMATION, etc. REMOTE CONTROL OPERATION RANGE LOADING BATTERIES Remove the cover. 1 DAS DISCRETE AMPLIFIER STAGE ST TUNED REMOTE SENSOR PRESET MEM KHz MHz SLEEP A B POWER ON STANDBY SPEAKER DIMMER SLEEP A CD B TAPE APE AUX PHONO Load two batteries matching the polarity. REPEAT REPEA A/B CD TUNER INTRO A DECK SEL. TAPE B TREBLE + BASS 2 + T/P MUTE VOL. TUNE MEMO TUNE + FM MODE VOL. P .SCAN 1 2 3 4 5 6 7 8 9 0 REMOTE CONTROL RM 117 RM-117 AAA size) Use the remote control unit within a range of about 7 meters (23 feet) and angles of up to 30 degrees aiming at the remote sensor. Remove the batteries when they are not used for a long time. Do not use the rechargeable batteries(Ni-Cd type). 9 Operations LISTENING TO A PROGRAM SOURCE Turn the power on. 1 STANDBY POWER ON STANDBY STANDBY POWER ON SPEAKER DIMMER SLEEP STNADBY A B TAPE AUX PHONO or CD REPEAT A/B CD TUNER INTRO ON/STANDBY A DECK SEL. TAPE B TREBLE + BASS + T/P MUTE VOL. TUNE MEMO TUNE · Then this unit is turned on to enter the operating mode. · In the operating mode, when the POWER button on the front panel or the STANDBY button on the remote control is pressed, the unit is turned off to enter the standby mode. · In the standby mode, the STANDBY indicator lights up. This means that the receiver is not disconnected from the AC mains and a small amount of current is retained to support the memorized contents and operation readiness. FM MODE VOL. P .SCAN 1 2 3 4 5 6 7 8 9 0 Switch the desired speakers on. Select the desired input source. 2 POWER ON REMOTE CONTROL RM-117 3 FM/AM CD TAPE AUX PHONO CD TAPE AUX PHONO POWER ON STANDBY SPEAKER DIMMER SLEEP STANDBY STANDBY SPEAKER A SPEAKER B A B A SPEAKER DIMMER SLEEP B TAPE APE AUX PHONO A CD CD or CD TUNER REPEAT REPEA A/B INTRO TUNER B TAPE APE AUX PHONO or REPEAT REPEA A/B CD TUNER INTRO A Then the corresponding speaker indication("SPK A(or/and) B" is displayed and the sound can be heard from the speakers connected to the selected speaker terminals. When using the headphones for private listening, press the corresponding SPEAKER button to switch off both A and B speakers. DECK SEL. B TREBLE BASS T/P MUTE VOL. Each time the FM/AM button on the front panel or the TUNER button on the remote control is pressed, the band is changed to AM or FM. TUNE MEMO TUNE FM MODE VOL. P .SCAN POWER ON STANDBY SPEAKER DIMMER SLEEP A CD B TAPE VIDEO TV/AUX 4 Operate the selected component for playback. 1 2 3 4 5 6 7 8 9 0 5 DOWN Adjust the volume to a comfortable listening level. REPEAT A/B TUNER INTRO A DECK SEL. B VOLUME TREBLE + BASS + T/P MUTE VOL. REMOTE CONTROL RM-117 or UP VOL. TUNE MEMO TUNE + FM MODE VOL. P.SCAN VOL. 1 2 3 4 5 6 7 8 9 0 10 REMOTE CONTROL RM-110 POWER ON STANDBY SPEAKER DIMMER SLEEP A CD B TAPE VIDEO TV/AUX REPEAT A/B TUNER To mute the sound. INTRO To listen with the headphones. 6 A DECK SEL. B 7 + BASS PHONES TREBLE + T/P MUTE MUTE VOL. TUNE MEMO TUNE + FM MODE VOL. P.SCAN "MUTE" lights up and flickers. To resume the previous sound level, press this button again. 1 2 3 4 5 6 7 8 9 0 Be sure to switch off both A and B speakers. POWER ON STANDBY SPEAKER DIMMER SLEEP A CD B TAPE VIDEO TV/AUX Adjusting the tone(bass and treble) REMOTE CONTROL RM-110 REPEAT A/B TUNER Enter the tone mode. 8 TONE 9 At the desired tone mode, adjust the tone as desired. INTRO A DECK SEL. B TREBLE + BASS + T/P MUTE TREBLE or