Gemini-XTR400-ass-sm维修电路原理图.pdf

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1、(1) ? ? ? SUBWOOFER / SATELLITES Gemini Sound Products Corp. 120 Clover Place P.O. Box 6928 Edison, NJ 08818-6928 732-738-9003 (Phone) 732-738-9006 (Fax) CONTENTS: Cautions, Connections, & Operations :.Page 2-4 Specifications:.Page 4 Parts Lists:.Page 5 PCBs:.Page 6-8 Schematics.Page 9 RadioFans.CN

2、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 system engineered & manufactured by Gemini Sound Products. This state of the art speaker system is backed up by a three-year warranty. The XTR-400 offers ultimate fidelity, power handling,

3、 and an array of features that makes it 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 a satellite speaker and metal corner protectors. Two hig

4、h quality satellite speakers featuring 10-inch woofers and dual piezo horns housed in trapezoidal cabinets. Satellite speakers are uniquely designed for placement on stands or for use as floor monitors, and protected by full front metal grill and metal corners. Built-in active optimized crossovers.

5、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 p

6、ossible 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 usin

7、g 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 a qualified Gemini Sound Products service technician. In the USA: If you experience problems with this unit, please call 1 (732) 738-9003 for Gemi

8、ni 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 a radiator or stove. 4. This unit should be cleaned only with a damp cloth. Avoid solvents or other cleaning detergents. 5. When moving this equipmen

9、t, it should be placed in its original carton and 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 ANY CONTROLS OR SWITCHES. CONNECTIONS: INPUT SECTION: There are two parallel input connecto

10、rs (one female XLR and one 1/4” jack) per channel. Either can be used as an input or as a link to chain amplifiers. XLR INPUT JACKS: XLR INPUT JACKS (1) electronically balanced inputs accept a standard XLR male connector. Pin 1 = shield/ground, pin 2 = hot or positive (+) and pin 3 = cold or negativ

11、e (-). 1/4 PHONO INPUT JACKS: 1/4 PHONO INPUT JACKS (2) accept a balanced as well as an unbalanced line. The unbalanced line uses a standard tip-sleeve connection. The tip is positive and the sleeve is negative/ground. The balanced line uses a tip-ring-sleeve connection. Tip = hot or positive (+), r

12、ing = 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 the volume levels of the satellite speak

13、ers. It will always maintain a perfect balance 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 the amplifiers ground. When the signal ground lifted, the sound source disconnects from the a

14、mplifiers ground preventing ground loops which can generate hum and noise. See the Signal Ground Lift Switch Instructions for more detail. OUTPUT SECTION: Disconnect unit from the AC power source before making any connections. SPEAKER OUTPUTS (3): The speaker output connectors are Speakon connectors

15、 that will accept cables with Speakon connectors. (These cables must be purchased separately) The subwoofer is already connected internally, 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 lig

16、hts 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 reconfiguring amplifier for either 110-120V or 220-240V AC lines. OPERATION: STEREO OPERATION: The unit has two channels for

17、stereo operation. Each channel provides a separate signal at the speaker outputs. The following instructions are for use with 8W speakers of matched power ratings. We suggest only using the speakers that come with the unit. 1. With the power OFF, connect your input cables from your music source (suc

18、h as your mixer) to the Channel 1 and Channel 2 INPUTS using the XLR INPUT JACKS (1) or 1/4 PHONO INPUT JACKS (2). 2. Connect your speakers to the Channel 1 and Channel 2 SPEAKER OUTPUTS (3). 3. With the SENSITIVITY/VOLUME CONTROLS (10) of both channels set to zero (fully counter clockwise), turn th

19、e 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 way it will be as high above the amplifiers noise floor as possible so youll get the best possible sound with the least amount of noi

20、se. Now play some music and listen for audible distortion. If you do hear distortion decrease the output level using the SENSITIVITY/VOLUME CONTROLS (10). MONO OPERATION: Connect your MONO signal to the Channel 1 input (1 or 2). Now create a link by connecting the remaining Channel 1 input to a Chan

21、nel 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 channels SENSITIVITY/VOLUME CONTROL (10). USING THE SIGNAL GROUND LIFT SWITCH: Depending on how your sound system is hooked up, sometimes applying the grou

22、nd will create a quieter signal path. Sometimes lifting the ground can eliminate ground loops and that annoying hum to give you quieter and cleaner overall sound. 1. With the power amp ON, listen to the system in idle mode (no music or signal) with the ground ON. The SIGNAL GROUND LIFT SWITCH (7) wi

23、ll be 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 position makes the overall sound quieter with the least amount of nois

24、e and hum. CAUTION: DO NOT DISCONNECT THE AC GROUND ON THE POWER AMPLIFIER IN ANY WAY. THIS CAN BE VERY HAZARDOUS! RadioFans.CN 收音机爱 好者资料库 (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. The ideal location fo

25、r your subwoofer is close to a wall or in a corner. This will give you the fullest bass response. Your 2 satellite speakers can be placed 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-400 systems.

26、 This will give you a total of 800 watts rms! Place a subwoofer on each side to the left and right. Using the high-hat hardware and connecting pole (which can be purchased separately), place the pole in the high-hat socket on the subwoofer, and a satellite speaker on top of the pole. The 2 remaining

27、 satellite speakers may be used as either floor monitors, or placed on stands elsewhere in the room giving you a louder and fuller sound. Each speaker system in this setup must be used in MONO mode (see Mono section). Connect the system that is on the left side of the audience to the LEFT channel of

28、 your mixer, and the system that is on the right side of the audience to the RIGHT channel of your mixer. ACTIVE SPEAKER SYSTEM SUBWOOFER/SATELLITES The XTR-400 features a unique design for ease in transporting. The 2 satellite speakers conveniently fit into a special recessed section of the subwoof

29、er and are securely fastened using a strap that attaches to the handles (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 channel Frequency re

30、sponse:.32 Hz - 100 Hz Components:.15 woofer Features: Efficient band-pass cabinet design Large metal handles Metal protection corners Four 2 wheels Amplifier assembly on the back 35mm standmount cap on top Black carpet finish Rubber feet Dimensions:.WxDxH: 20 x31x24.5 (508 x 788 x 622 mm) Weight:.9

31、6 lbs (44 kg) Satellites GT-1002s: Amplifiers Output Power:.2x85 Wrms on satellite channels Frequency response:.100 Hz 20 kHz Components:.10 woofer 6” dual piezo horn Features: Trapezoidal cabinet Full front protective metal grill Metal protection corners 35 mm standmount cup on the bottom Black car

32、pet finish Rubber feet Neutrik Speakon connector Dimensions:.W x D x H 12.5 x 9 x 18 (318 x 229 x 458 mm) Weight:.18 lbs (8 kg) each Total System: Maximum SPL, continuous:.120 dB Sensitivity. 1 Vrms Input Impedance.10 kOhm unbalanced/20 kOhm balanced Features: Balanced XLR and 1/4 Jack inputs Neutri

33、k Speakons on Satellite Channels outputs Active electronic X-over (Fx=100 Hz) Variable speed fan Individual channel Sensitivity/Volume controls Signal Ground lift switch 110-120 VAC / 220-240 VAC switchable Total Weight:.132 lbs (60 kg) SPECIFICATIONS AND DESIGN ARE SUBJECT TO CHANGE WITHOUT NOTICE

34、FOR PURPOSE OF IMPROVEMENT. RadioFans.CN 收音机爱 好者资料库 (5) Item #DesignatorsDescriptionPart Number MAIN PCB: 1ZD3, ZD2ZENER DIODE 1/2W 12V (RD12EB2)079-012 2D3, D1, D2SILICON DIODE 1N4148079-003 3ZD1ZENER DIODE 1/2W 24V (RD24EB2)079-020 4Q1SILICON TRANSISTORS 2SC1815076-003 5Q2SILICON TRANSISTOR 2SC479

35、3076-100 6C18, C13ELECTROLYTIC CAPACITORS 6800 /50V050-198 7REC1BRIDGE RECTIFIER KBPC804W086-019 8U3, U2, U4, U1INTEGRATED CIRCUIT TDA7294V074-189 CROSSOVER PCB: 1VR1, VR2ROTARY VR 10KA L:15MM 071-228 2LD1LED (GREEN) 5 080-086 3IC1, IC3, IC2INTEGRATED CIRCUIT NJM4558DD (BA15218,M5218AP) 074-163 INPU

36、T PCB: 1SW1SLIDE SWITCH SV70050081-030 2IC1INTEGRATED CIRCUIT NJM4558DD (BA15218,M5218AP)074-163 3X3, X2PHONE JACK 6.3 TRS 1/4 BAL092-078 4XLR2, XLR1XLR XLF-3PH092-069 OUTPUT PCB: 1X1, X2SPEAKON CONNECTORS NL4MP092-149 OTHER: 1AC CORD093-369 2AC INLET092-105 3DC FAN 24V001-613 4TRANSFORMER059-247 5S

37、LIDE SWITCH081-023 6POWER SWITCH083-121 7FUSE VBS UTE 3.15A 250V100-068 8FUSE VBS UTE 6.3A 250V100-071 PARTS 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. RadioFans

38、.CN 收音机爱 好者资料库 XTR400-3 XTR400-4 SW1 X1 C1 R1 R2 R3 R4 R6 R7 R8 R9 C2 C3 C4 C5 R5 IC1 X2 X3 XLR1 XLR2 G + OUTPUT PCB INPUT PCB Page 6 RadioFans.CN 收音机爱 好者资料库 XTR400-1 XTR400-2 RED RED/BLK BLK RED BLK BLKBLK RED RED C8 R5 LD1 J1 C7 C6 C4C3C2 C12 C5 C11 C1 C10 C9 IC2 IC3 R11 R20 R9 R6 R14 R15 R21 R2 R

39、8 R19 R12 R13 R10 R3 R4 R18 R1 R7 R22 R17 R16 X2 X4 X3 X1 IC1 J2 J3 C13 C14 VR2 VR1 C21 X2 X6X5 X11 X10 X7 X8 X1 X13 Q2 1 R2 X4 C13 R5 C12 AC AC + - REC1 X9 J6 R12 R6 J5 J8 R34 J1 J2 J9 J10 J7 ZD1 ZD2 ZD3 X12 X3 151 U1 115 U4 R37 R3 R36 R10 R7 R28 R29 R1 R24 R33 R19 R20 R16 R15 R30 R8 R21 R22 R18 R1

40、7 R35 R23 R9 R31 R26 R11 R38 R27 R32 R14 R25 R4 Q1 L4 L1 L3 L2 D2 D1D3 C19 C5 C3 C29 C1 C23 C2 C22 C4 C31 C26 C11 C17 C16 C15 C14 C20 C8 C30 C27 C7 C28 C6 C25 C9 C24 C10 J3J4 115 U2 R13 115 U3 C18 C32 TOP LAYERX-OVERMAIN PCB RadioFans.CN 收音机爱 好者资料库 XTR400-1 XTR400-2 RED RED/BLK BLK RED BLK BLKBLK RE

41、D RED C8 R5 LD1 J1 C7 C6 C4C3C2 C12 C5 C11 C1 C10 C9 IC2 IC3 R11 R20 R9 R6 R14 R15 R21 R2 R8 R19 R12 R13 R10 R3 R4 R18 R1 R7 R22 R17 R16 X2 X4 X3 X1 IC1 J2 J3 C13 C14 VR2 VR1 C21 X2 X6X5 X11 X10 X7 X8 X1 X13 Q2 1 R2 X4 C13 R5 C12 AC AC + - REC1 X9 J6 R12 R6 J5 J8 R34 J1 J2 J9 J10 J7 ZD1 ZD2 ZD3 X12

42、X3 151 U1 115 U4 R37 R3 R36 R10 R7 R28 R29 R1 R24 R33 R19 R20 R16 R15 R30 R8 R21 R22 R18 R17 R35 R23 R9 R31 R26 R11 R38 R27 R32 R14 R25 R4 Q1 L4 L1 L3 L2 D2 D1D3 C19 C5 C3 C29 C1 C23 C2 C22 C4 C31 C26 C11 C17 C16 C15 C14 C20 C8 C30 C27 C7 C28 C6 C25 C9 C24 C10 J3J4 115 U2 R13 115 U3 C18 C32 BOTTOM L

43、AYERX-OVERMAIN PCB RadioFans.CN 收音机爱 好者资料库 T1 SW3 SW4 C101 6.3A / 110-120V WHT BLK ORG BLU BRN F SW-POWER VOLTAGE SELECTOR L E N F AC INLET P2 P3 P1 POWER PCB 230v115v FAN1 24Vdc/0.19A C2 270 R3 10K 1% R4 10K 1% R7 10K 1% R9 10K 1% C4270 CH.2 (R) T R S X3TRS 1/4 BAL 21 3 XLR2 XLF-3PH C3 270 R1 10K 1

44、% R2 10K 1% R8 10K 1% C5 270 T R S X2TRS 1/4 BAL 21 3 XLR1 XLF-3PH CH.1 (L) 6 5 7 IC1B NJM4558DD 2 3 1 48 IC1A NJM4558DD R6 10K 1% + 12V - 12V 25 1 4 3 6 SW1 C10.047uF Signal ground lift R5 510 + 12V - 12V INPUT INPUT CH.1 (L) OUTPUT CH.2 (R) OUTPUT INPUT PCB 2 3 1 48 IC1A NJM4558DD 6 5 7 IC1B NJM45

45、58DD 2 3 1 48 IC2A NJM4558DD 2 3 1 48 IC3A NJM4558DD R9 13K 1% R10 39.2K 1% R8 39.2K 1% R11 22.1K 1% C4 .047uF5% R13 60.4K 1% R18 10K 1% C3 .047uF5% R12 60.4K 1% + 12V - 12V X-OVER PCB R15 13K 1% R7 39.2K 1% R1 39.2K 1% R14 10K 1% C8 .1uF 5% C5 .1uF 5% R6 13K 1% R5 39.2K 1% R19 39.2K 1% - 12V + 12V

46、R20 22.1K 1% C2 .047uF 5% C12 .047uF 5% 6 5 7 IC3B NJM4558DD 6 5 7 IC2B NJM4558DD R22 13K 1% R17 13K 1% R2 13K 1% R439.2K 1%R339.2K 1% R21 13K 1% C11 0.033uF5% C10.033uF5% 1 2 3 4 5 6 7 X2 VR2 10KA VR1 10KA + 12V - 12V 1 2 3 4 X4 1 2 3 4 X3 1 2 3 X1 C9 0.1 C10 0.1 + 12V + 12V - 12V- 12V C7 10uF25V N

47、P C6 10uF25V NP LD1 GRN R16 2.4K C13 100uF16V C14 100uF16V CH.1 (L) INPUT CH.2 (R) INPUT CH.1 (L) CH.2 (R) CH.1 (L) OUTPUT SUB OUTPUT (+) CH.2 (R) OUTPUT SUB OUTPUT (-) VOLUME CONTROL VOLUME CONTROL STBY 9 IN + 3 -Vs 8 IN+MUTE 4 -PWVs 15 +Vs 7 BOOTSTRAP 6 MUTE 10 STBY-GND 1 +PWVs 13 IN - 2 OUT 14 U2TDA7294V 1 2 3 4 REC1 KBPS10-02 C1122