Gemini-XTR400-ass-sm维修电路原理图.pdf

(1)?SUBWOOFER / SATELLITESGemini Sound Products Corp.120 Clover Place P.O. Box 6928Edison, NJ 08818-6928732-738-9003 (Phone) 732-738-9006 (Fax)CONTENTS:Cautions, Connections, & Operations :.Page 2-4Specifications:.Page 4Parts Lists:.Page 5PCBs:.Page 6-8Schematics.Page 9RadioFans.CN 收音机爱 好者资料库(2)RadioFans.CN 收音机爱 好者资料库(3)INTRODUCTION:Congratulations on your purchase of an XTR-400 speaker systemengineered & manufactured by Gemini Sound Products. This state of theart speaker system is backed up by a three-year warranty. The XTR-400offers ultimate fidelity, power handling, and an array of features that makesit a highly versatile, compact, self contained & powered speaker system.FEATURES:Active self-powered 400W rms tri-amp design.One 15-inch bandpass subwoofer. Features top-hat hardware for pole mounting of asatellite speaker and metal corner protectors.Two high quality satellite speakers featuring 10-inch woofers and dual piezo horns housed intrapezoidal cabinets. Satellite speakers are uniquely designed for placement on stands or for useas floor monitors, and protected by full front metal grill and metal corners.Built-in active optimized crossovers.Sensitivity/Volume controls.Satellites equipped with reliable Speakon connectors for exceptional sound.(cables must be purchased separately)Signal Ground Lift Switch for achieving the quietest possible hum-free operation.Airflow controlled by variable speed fan for maximum cooling and quietest possible operation.Mono or Stereo operation.AC line voltage selector switch allows reconfiguring amplifier for either 110-120V or 220-240V AC lines.Compact design featuring large metal handles and casters for ease in transporting.CAUTIONS:1. All operating instructions should be read before using this equipment.2. To reduce the risk of electrical shock, do not open the unit. There are,NO USER REPLACEABLE PARTS INSIDE. Please refer servicing to aqualified Gemini Sound Products service technician.In the USA: If you experience problems with this unit, please call 1 (732) 738-9003 forGemini Customer Service. Do not attempt to return this equipment to your dealer.3. Do not expose this unit to direct sunlight or to a heat source such as aradiator or stove.4. This unit should be cleaned only with a damp cloth. Avoid solvents orother cleaning detergents.5. When moving this equipment, it should be placed in its original cartonand packaging. This will reduce the risk of damage during transit.6. DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE.7. DO NOT USE ANY SPRAY CLEANER OR LUBRICANT ON ANYCONTROLS OR SWITCHES.CONNECTIONS:INPUT SECTION:There are two parallel input connectors (one female XLR and one 1/4” jack) perchannel. Either can be used as an input or as a link to chain amplifiers.XLR INPUT JACKS: XLR INPUT JACKS (1) electronically balancedinputs accept a standard XLR male connector. Pin 1 = shield/ground, pin2 = hot or positive (+) and pin 3 = cold or negative (-).1/4 PHONO INPUT JACKS: 1/4 PHONO INPUT JACKS (2) accept abalanced as well as an unbalanced line. The unbalanced line uses astandard tip-sleeve connection. The tip is positive and the sleeve isnegative/ground. The balanced line uses a tip-ring-sleeve connection.Tip = hot or positive (+), ring = cold or negative (-), and sleeve = shield/ground.SENSITIVITY/VOLUME CONTROLS: SENSITIVITY/VOLUME CONTROLS(10) control the input levels for each channel of the 2 satellite speakers.The volume level of the subwoofer is controlled automatically to match thevolume levels of the satellite speakers. It will always maintain a perfectbalance to give you incredible sound quality!SIGNAL GROUND LIFT SWITCH: SIGNAL GROUND LIFT SWITCH (7)is used to lift the balanced input connectors ground/shield from theamplifiers ground. When the signal ground lifted, the sound sourcedisconnects from the amplifiers ground preventing ground loops whichcan generate hum and noise. See the Signal Ground Lift SwitchInstructions for more detail.OUTPUT SECTION:Disconnect unit from the AC power source before making any connections.SPEAKER OUTPUTS (3): The speaker output connectors are Speakonconnectors that will accept cables with Speakon connectors. (Thesecables must be purchased separately) The subwoofer is already connectedinternally, so you dont have to worry about connecting it to the amplifier.AC POWER SECTION:POWER SWITCH (8): turns the unit on and off.POWER LED (9): the power LED lights when the power is on.FUSE (4): replace with proper type and rating.AC INLET (6) is used to attach the power cord to the unit.AC LINE VOLTAGE SELECTOR SWITCH (5) allows reconfiguringamplifier for either 110-120V or 220-240V AC lines.OPERATION:STEREO OPERATION:The unit has two channels for stereo operation. Each channel provides aseparate signal at the speaker outputs. The following instructions arefor use with 8W speakers of matched power ratings. We suggest onlyusing the speakers that come with the unit.1. With the power OFF, connect your input cables from your music source(such as your mixer) to the Channel 1 and Channel 2 INPUTS using theXLR INPUT JACKS (1) or 1/4 PHONO INPUT JACKS (2).2. Connect your speakers to the Channel 1 and Channel 2 SPEAKEROUTPUTS (3).3. With the SENSITIVITY/VOLUME CONTROLS (10) of both channelsset to zero (fully counter clockwise), turn the POWER SWITCH (8), ON.Okay, now try playing some music and/or talking into your microphone,and set the level of your input as high as you think youll need it. This wayit will be as high above the amplifiers noise floor as possible so youll getthe best possible sound with the least amount of noise. Now play somemusic and listen for audible distortion. If you do hear distortion decreasethe output level using the SENSITIVITY/VOLUME CONTROLS (10).MONO OPERATION:Connect your MONO signal to the Channel 1 input (1 or 2). Now create alink by connecting the remaining Channel 1 input to a Channel 2 input(1 or 2) using a standard balanced cable (may be purchased separately).You can adjust the level of each satellite speaker using its channelsSENSITIVITY/VOLUME CONTROL (10).USING THE SIGNAL GROUND LIFT SWITCH:Depending on how your sound system is hooked up, sometimes applyingthe ground will create a quieter signal path. Sometimes lifting the groundcan eliminate ground loops and that annoying hum to give you quieter andcleaner overall sound.1. With the power amp ON, listen to the system in idle mode (no music orsignal) with the ground ON. The SIGNAL GROUND LIFT SWITCH (7) willbe in the left position.2. Turn the power OFF before moving the SIGNAL GROUND LIFT SWITCH (7).Now lift the ground by moving the SIGNAL GROUND LIFT SWITCH (7)to the right. Turn the power back ON and listen to determine which positionmakes the overall sound quieter with the least amount of noise and hum.CAUTION: DO NOT DISCONNECT THE AC GROUND ON THE POWER AMPLIFIER IN ANY WAY.THIS CAN BE VERY HAZARDOUS!(4)SETUP:There are various ways to set up this system:BASIC SETUP:Okay, this is your basic setup, perfect for small parties and venues. Theideal location for your subwoofer is close to a wall or in a corner. Thiswill give you the fullest bass response. Your 2 satellite speakers can beplaced up on stands on each side (stands must be purchased separately).TWO-SYSTEM SETUP:This setup is perfect for larger venues. This setup requires 2 XTR-400systems. This will give you a total of 800 watts rms! Place a subwooferon each side to the left and right. Using the high-hat hardware andconnecting pole (which can be purchased separately), place thepole in the high-hat socket on the subwoofer, and a satellite speaker ontop of the pole. The 2 remaining satellite speakers may be used as eitherfloor monitors, or placed on stands elsewhere in the room giving you alouder and fuller sound.Each speaker system in this setup must be used in MONO mode (seeMono section). Connect the system that is on the left side of the audienceto the LEFT channel of your mixer, and the system that is on the right sideof the audience to the RIGHT channel of your mixer.ACTIVE SPEAKER SYSTEM SUBWOOFER/SATELLITESThe XTR-400 features a unique design for ease in transporting. The 2satellite speakers conveniently fit into a special recessed section of thesubwoofer and are securely fastened using a strap that attaches to thehandles (included).SHOULD YOU EXPERIENCE ANY DIFFICULTIES OR PROBLEMS,PLEASE CALL: 1 (732) 738-9003 FOR GEMINI CUSTOMER SERVICE.SPECIFICATIONS:Subwoofer XTR-400SUB:Amplifiers Output Power:.230 Wrms on subwoofer channelFrequency response:.32 Hz - 100 HzComponents:.15 wooferFeatures:Efficient band-pass cabinet designLarge metal handlesMetal protection cornersFour 2 wheelsAmplifier assembly on the back35mm standmount cap on topBlack carpet finishRubber feetDimensions:.WxDxH: 20 x31x24.5 (508 x 788 x 622 mm)Weight:.96 lbs (44 kg)Satellites GT-1002s:Amplifiers Output Power:.2x85 Wrms on satellite channelsFrequency response:.100 Hz 20 kHzComponents:.10 woofer 6” dual piezo hornFeatures:Trapezoidal cabinetFull front protective metal grillMetal protection corners35 mm standmount cup on the bottomBlack carpet finishRubber feetNeutrik Speakon connectorDimensions:.W x D x H 12.5 x 9 x 18 (318 x 229 x 458 mm)Weight:.18 lbs (8 kg) eachTotal System:Maximum SPL, continuous:.120 dBSensitivity. 1 VrmsInput Impedance.10 kOhm unbalanced/20 kOhm balancedFeatures:Balanced XLR and 1/4 Jack inputsNeutrik Speakons on Satellite Channels outputsActive electronic X-over (Fx=100 Hz)Variable speed fanIndividual channel Sensitivity/Volume controlsSignal Ground lift switch110-120 VAC / 220-240 VAC switchableTotal Weight:.132 lbs (60 kg)SPECIFICATIONS AND DESIGN ARE SUBJECT TO CHANGE WITHOUTNOTICE FOR PURPOSE OF IMPROVEMENT.(5)Item #DesignatorsDescriptionPart NumberMAIN PCB:1ZD3, ZD2ZENER DIODE 1/2W 12V (RD12EB2)079-0122D3, D1, D2SILICON DIODE 1N4148079-0033ZD1ZENER DIODE 1/2W 24V (RD24EB2)079-0204Q1SILICON TRANSISTORS 2SC1815076-0035Q2SILICON TRANSISTOR 2SC4793076-1006C18, C13ELECTROLYTIC CAPACITORS 6800 /50V050-1987REC1BRIDGE RECTIFIER KBPC804W086-0198U3, U2, U4, U1INTEGRATED CIRCUIT TDA7294V074-189CROSSOVER PCB:1VR1, VR2ROTARY VR 10KA L:15MM 071-2282LD1LED (GREEN) 5 080-0863IC1, IC3, IC2INTEGRATED CIRCUIT NJM4558DD (BA15218,M5218AP) 074-163INPUT PCB:1SW1SLIDE SWITCH SV70050081-0302IC1INTEGRATED CIRCUIT NJM4558DD (BA15218,M5218AP)074-1633X3, X2PHONE JACK 6.3 TRS 1/4 BAL092-0784XLR2, XLR1XLR XLF-3PH092-069OUTPUT PCB:1X1, X2SPEAKON CONNECTORS NL4MP092-149OTHER:1AC CORD093-3692AC INLET092-1053DC FAN 24V001-6134TRANSFORMER059-2475SLIDE SWITCH081-0236POWER SWITCH083-1217FUSE VBS UTE 3.15A 250V100-0688FUSE VBS UTE 6.3A 250V100-071PARTS LIST:In the USA: If you should experience problems with this unit,please call 1 (732) 738-9003 for Gemini Customer Service.Do not attempt to return this equipment to your dealer.XTR400-3XTR400-4SW1X1C1R1R2R3R4R6R7R8R9C2C3C4C5R5IC1X2X3XLR1XLR2G+OUTPUT PCBINPUT PCBPage 6XTR400-1XTR400-2REDRED/BLKBLKREDBLKBLKBLKREDREDC8R5LD1J1C7C6C4C3C2C12C5C11C1C10C9IC2IC3R11R20R9R6R14R15R21R2R8R19R12R13R10R3 R4R18R1R7R22R17R16X2X4X3X1IC1J2J3C13C14VR2VR1C21X2X6X5X11X10X7X8X1X13Q21R2X4C13R5C12ACAC+-REC1X9J6R12R6J5J8R34J1J2J9J10J7ZD1ZD2ZD3X12X3151U1115U4R37R3R36R10R7R28R29R1R24R33R19R20R16R15R30R8R21R22R18R17R35R23R9R31R26R11R38R27R32R14R25R4Q1L4L1L3L2D2D1D3C19C5C3C29C1C23C2C22C4C31C26C11C17C16C15C14C20C8C30C27C7C28C6C25C9C24C10J3J4115U2R13115U3C18C32TOP LAYERX-OVERMAIN PCBXTR400-1XTR400-2REDRED/BLKBLKREDBLKBLKBLKREDREDC8R5LD1J1C7C6C4C3C2C12C5C11C1C10C9IC2IC3R11R20R9R6R14R15R21R2R8R19R12R13R10R3 R4R18R1R7R22R17R16X2X4X3X1IC1J2J3C13C14VR2VR1C21X2X6X5X11X10X7X8X1X13Q21R2X4C13R5C12ACAC+-REC1X9J6R12R6J5J8R34J1J2J9J10J7ZD1ZD2ZD3X12X3151U1115U4R37R3R36R10R7R28R29R1R24R33R19R20R16R15R30R8R21R22R18R17R35R23R9R31R26R11R38R27R32R14R25R4Q1L4L1L3L2D2D1D3C19C5C3C29C1C23C2C22C4C31C26C11C17C16C15C14C20C8C30C27C7C28C6C25C9C24C10J3J4115U2R13115U3C18C32BOTTOM LAYERX-OVERMAIN PCBT1SW3SW4C1016.3A / 110-120VWHTBLK ORGBLUBRNFSW-POWERVOLTAGE SELECTOR LENFAC INLETP2P3P1POWER PCB230v115vFAN124Vdc/0.19AC2270R3 10K 1%R4 10K 1%R710K 1%R9 10K 1%C4270CH.2 (R)TRSX3TRS 1/4 BAL213XLR2XLF-3PHC3270R1 10K 1%R210K 1%R8 10K 1%C5 270TRSX2TRS 1/4 BAL213XLR1XLF-3PHCH.1 (L)657IC1BNJM4558DD23148IC1ANJM4558DDR6 10K 1%+ 12V- 12V251436SW1C10.047uFSignal ground liftR5 510+ 12V- 12VINPUTINPUTCH.1 (L) OUTPUTCH.2 (R) OUTPUTINPUT PCB23148IC1ANJM4558DD657IC1BNJM4558DD23148IC2ANJM4558DD23148IC3ANJM4558DDR913K 1%R1039.2K 1%R839.2K 1%R1122.1K 1%C4.047uF5%R1360.4K 1%R1810K 1%C3.047uF5%R1260.4K 1%+ 12V- 12VX-OVER PCBR1513K 1%R739.2K 1%R139.2K 1%R1410K 1%C8.1uF 5%C5.1uF 5%R613K 1%R539.2K 1%R1939.2K 1%- 12V+ 12VR2022.1K 1%C2.047uF 5%C12.047uF 5%657IC3BNJM4558DD657IC2BNJM4558DDR2213K 1%R17 13K 1%R2 13K 1%R439.2K 1%R339.2K 1%R21 13K 1%C110.033uF5%C10.033uF5%1234567X2VR210KAVR110KA+ 12V- 12V1234X41234X3123X1C90.1C100.1+ 12V+ 12V- 12V- 12VC710uF25V NPC610uF25V NPLD1GRNR162.4KC13100uF16VC14100uF16VCH.1 (L) INPUTCH.2 (R) INPUTCH.1 (L)CH.2 (R)CH.1 (L) OUTPUTSUB OUTPUT (+)CH.2 (R) OUTPUTSUB OUTPUT (-)VOLUMECONTROLVOLUMECONTROLSTBY9IN +3-Vs8IN+MUTE4-PWVs15+Vs7BOOTSTRAP6MUTE10STBY-GND1+PWVs13IN -2OUT 14U2TDA7294V1234REC1KBPS10-02C1122uF50V+E-EL21.0uHR108R2 1WC20.1uF100VR1213K 1%R626.7K 1%R41K 1%C922uF25VC102200pFR95.1KC136800uF50VC186800uF50VX8REDX6BLACKX7REDC6 10pFC2810pF+E-ER175.1KR185.1KR345.1KR335.1KR248.2KR235.1KC3010uF25VC3222uF25VSTBY9IN +3-Vs8IN+MUTE4-PWVs15+Vs7BOOTSTRAP6MUTE10STBY-GND1+PWVs13IN -2OUT 14U4TDA7294VC2122uF50V+EC160.1-EC140.1L3 1.0uHR368R2 1WC230.1uF100VR2713K 1%R3826.7K 1%KR251K 1%C2522uF25VC242200pFR355.1KR225.1KR215.1KD31N4148ZD212V 0.5WR18.2KC3220uF25V+12VQ22SC4793X4STBY9IN +3-Vs8IN+MUTE4-PWVs15+Vs7BOOTSTRAP6MUTE10STBY-GND1+PWVs13IN -2OUT 14U1TDA7294VC510uF50V+E-EL1 1.0uHR38R2 1WC10.1uF100VR1313K 1%R1126.7K 1%R141K 1%C810uF25VC4390pFR8 5.1KC710pFC2710pFR155.1KR165.1KSTBY9IN +3-Vs8IN+MUTE4-PWVs15+Vs7BOOTSTRAP6MUTE10STBY-GND1+PWVs13IN -2OUT 14U3TDA7294VC1910uF50V+EC150.1-EC170.1L4 1.0uHR378R2 1WC290.1uF100VR3113K 1%R2626.7K 1%R321K 1%C2010uF25VC22390pFR305.1KR205.1KR195.1KZD124V 0.5WQ12SC1815R29 1.2K 3WR28 1.2K 3WZD312V 0.5WC31100uF16VC26100uF16VC124.7uF50VD21N4148D1 1N4148R768R52.4KR22.4KT+E-12VX11BLACKX1REDX10RED/BLACK STRIPX2RED+12V-12V123X91234X31234X12SUB INPUT (-)CH.2 (R) INPUTSUB INPUT (+)CH.1 (L) INPUTFAN24 VdcCH.1 (L)OUTPUTOUTPUTCH.2 (R)OUTPUT (+)SUBWOOFERSUBWOOFEROUTPUT (-)X5BLACKX13BLACKTo CENTER TAPTo POWERTo POWERTo SPEAKERTo CHASSISPOWER TRANSFORMERTRANSFORMERTRANSFORMEROUTPUTSMAIN PCBOUTPUT1+1-2+2-X2 NL4MP1+1-2+2-X1 NL4MPP1REDP2BLACKP3RED/BLACK STRIPCH.1 (L)OUTPUTCH.2 (R)3.15A / 220-240VFUSEOUTPUT PCB18AWG RED 45sm18AWG BLACK 45smEndsstriped15mmTwisted pair to Subwoofer terminal18AWG BLACK18AWG BLACK18AWG RED18AWG RED/BLACK STRIP18AWG BLACK1234567X112345671234567 SCHEMATICPage 9