Gemini-SP1-sur-sm维修电路原理图.pdf

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1、RadioFans.CN 收音机爱 好者资料库Page 212345678910111213141516171819202122RadioFans.CN 收音机爱 好者资料库Page 31Front Left Speaker2Front Right Speaker3Rear Left Speaker4Rear Right Speaker5SubwooferTwo Channel Stereo ConfigurationTwo Channel Four Speaker Stereo ConfigurationTwo Channel Four Speaker StereoDiagonal Conf

2、igurationCircle Surround ConfigurationDANCE FLOORDANCE FLOOROFFOFFDANCE FLOORDANCE FLOORPage 4Connections1. Before plugging in the power cord, make sure that the VOLTAGESELECTOR (9) switch is set to the correct voltage.2. Make sure that the POWER (10) switch is in the off position. ThePOWER LED (11)

3、 will be off. All connections must be made with allequipment OFF.3. On the rear panel is one set of electronically balanced stereo INPUTS(7, 8). The INPUTS (7, 8) are used to connect to the output of yourmixer using standard XLR cables. The balanced inputs have threeseparate conductors, two of which

4、 are signal (positive and negative)and one which is a shield (ground). Pin 1 is ground (shield). Pin 2 issignal hot (positive). Pin 3 is signal cold (negative).4. The SP-1 is supplied with 5 BALANCED OUTPUTS (1, 2, 3, 5, 6). TheBALANCED OUTPUT connectors are used to connect to youramplifiers using s

5、tandard XLR cables. Connect the BALANCEDOUTPUT (1) to the amplifier for the subwoofer. Connect theBALANCED OUTPUT (2) to the amplifier for the rear right speaker.Connect the BALANCED OUTPUT (3) the amplifier for the rear leftspeaker. Connect the BALANCED OUTPUT (5) to the amplifier for thefront righ

6、t speaker. Connect the BALANCED OUTPUT (6) to theamplifier for the front left speaker. The BALANCED OUTPUTS havethree separate conductors, two of which are signal (positive andnegative) and one which is a shield (ground). Pin 1 is ground (shield).Pin 2 is signal hot (positive). Pin 3 is signal cold

7、(negative).Speaker PlacementJust like in a theater or a home surround system set up, speakerplacement should be arranged to create a box in order to maximize theeffect of the SP-1. Refer to Page 2 for greater detail. Position thesubwoofer between the front speakers. If you position the subwoofer inf

8、ront of a wall or facing away from a corner, you will gain subwoofer output.Using the Ground Lift SwitchDepending on your system configuration, sometimes applying the groundwill create a quieter signal path. Sometimes lifting the ground caneliminate ground loops and hum to create a quieter signal pa

9、th.1. With the unit on, listen to the system in idle mode (no signal present)with the ground applied (the GROUND LIFT SWITCH (4) in the leftposition).2. Then turn the power off before moving the GROUND LIFT SWITCH(4). Lift the ground by moving the GROUND LIFT SWITCH to the right,turn the power back

10、on and listen to determine which position willprovide a signal devoid of background noise and hum. Keep theGROUND LIFT SWITCH in the ground position if the noise levelremains the same in either position.CAUTION: Do not terminate the AC ground on the unit in anyway. Termination of the AC ground can b

11、e hazardous.Operation1. After you have finished connection and placing the speakers in theirproper position, turn the POWER (10) on to the SP-1 (the POWERLED (11) will glow) and the rest of your equipment.Note: Turn on your equipment in the order that the soundtravels, beginning with the source and

12、ending with theamps.2. Move the SOUND FIELD (15) control to the Circle Surround position,then press the TEST (16) button on the SP-1. White noise will cyclethrough each speaker (except the subwoofer) so that you may monitorthe levels of each speaker individually. While standing in the center ofthe d

13、ance floor, check the noise levels with a sound pressure level(SPL) meter or listen to the noise levels. Use the OUTPUT LEVEL (17,18, 19, 20) controls to adjust the output level of the 4 channels. Note:The REAR EFFECT LEVEL (14) is disabled in test mode. Whenyouve finished the test, use the SUBWOOFE

14、R OUTPUT LEVEL (21)control to adjust the output level of the subwoofer.Note: The subwoofer will work in all modes of operation andis always on. Disconnect the subwoofer if you dont want touse it. See the Bass Enhancer instructions for moreinformation.Front Panel Controls1. Volume Control: Use the VO

15、LUME (13) control to adjust the overallvolume.2. Rear Effect Level: Starting from the center position, use the REAREFFECT LEVEL (14) to adjust the rear speaker levels. You may boostthe rear channels if you feel not enough sound is coming from them.You can also readjust the rear levels for music with

16、 varying spatialinformation.3. Sound Field: Use the SOUND FIELD (15) control to choose a mode ofoperation.4. Test Button: In Circle Surround mode, press the TEST (16) button onthe SP-1, and white noise will cycle through each speaker (except thesubwoofer) so that you may monitor the levels of each s

17、peakerindividually. The test button is recessed so you can not accidentallyinitiate a test in the middle of your music program.5. Output Level Controls: Use the OUTPUT LEVEL (17, 18, 19, 20)controls to preadjust the output levels of the 4 channels to compensatefor different amps and speaker sensitiv

18、ity. Use the SUBWOOFEROUTPUT LEVEL (21) control to adjust the output level of thesubwoofer.6. Bass Enhancer: Press the BASS ENHANCER (22) button to boostthe level of the bass of the subwoofer by +6 dB at 40 Hz. The BassEnhancer works optimally with most vented prosound subwoofers, andwhen activated,

19、 special filters shape the frequency response tooptimize bass performance while cutting subsonic frequencies. Note:the Bass Enhancer only boosts the bass from the subwoofer output.7. Signal LED: The multi-color SIGNAL LED (12) indicates the level ofthe signal and changes color incrementally from gre

20、en to red. Whenthe SIGNAL LED (12) glows red, the unit is in overload, and youshould lower the VOLUME (13). Sometimes you can also stop anoverload by lowering the REAR EFFECT LEVEL (14) or theSUBWOOFER OUTPUT LEVEL (21). Ideally, the SIGNAL LED (12)should flash between green and orange.Modes of Oper

21、ationUse the SOUND FIELD (15) control to choose one of the following modesof operation:1. Two Channel Stereo: In this standard stereo mode, the rear speakersare disengaged and only the front speakers function.2. Two Channel Four Speaker Stereo: In this four speaker stereo mode,the rear speakers mirr

22、or the front speakers program signal.3. Two Channel Four Speaker Stereo Diagonal: With diagonal mode,the rear right and left sides reverse so that the rear right speakermirrors the front left speakers program signal and the rear left speakermirrors the front right speakers program signal. This mode

23、is useful inlarge rooms or club environments to avoid people on one side of theroom hearing only one channel of a stereo program.4. Circle Surround: In Circle Surround sound mode, anystereo signal can be used to generate surround play. A frequency andphase dependent amplitude based signal processor

24、uses ambianceand directional information already present in the stereo signal togenerate 3D surround sound. And unlike other surround formats wherethe rear output is mono and bandwidth limited, Circle Surroundseparates the left and right rear channels with full bandwidth. In thismode, the rear speak

25、ers will not output the full program (the rear levelswill be lower than the front), because the rear speakers are used tocreate an enhanced spatial perception. Note: The Circle SurroundExperience is dependent on the source itself, therefore some tracks ofmusic may sound better in Circle Surround tha

26、n others. Signalsencoded for Circle Surround will give you the best circle surroundexperience.Page 5SpecificationsBalanced Inputs:Sensitivity.1 VRMSImpedance.20 kOhmBalanced Outputs:Level.2 VRMSImpedance.600 OhmFrequency Response:Stereo Mode.10 Hz - 60 kHz +0, -1 dBCircle Surround Mode.10 Hz - 22 kH

27、z +0, -1dBDistortion:Stereo Mode.0.01%Circle Surround Mode.90 dBCircle Surround Mode Front Channels.80 dBCircle Surround Mode Rear Channels.55 dBSubwoofer Channel:Low Pass Filter. 100 Hz, 12 dB/octHigh Pass Filter. 15 Hz, 6 dB/octHigh Pass Filter in Enhanced Mode.+ 6 dB 40 Hz (Q=2), 12 dB/octRear Ch

28、annel Effect Max./Min. Ratio.12 dBPower Source.115V/230V, 60 Hz/50 HzPower Consumption.10 WDimensions.19” x 1.75” x 10.5” (483 x 44 x 266 mm)Weight.10.5 lbs (2.5 kg)Circle Surround and the symbol are trademarks of SRS Labs, Inc. inthe United States and selected foreign countries. Circle Surroundtech

29、nology is incorporated under license from SRS Labs, Inc. is a trademark of Valence Technology Limited, in China, Hong Kongand Taiwan. CS technology is incorporated with permission of ValenceTechnology Limited.DescriptionPart #Cabinet Parts and Packing123456789101112131415161718192021222324Item #Part

30、s Lists002-292031-035032-070034-070022-305003-998003-733003-139003-140002-536002-537049-206146-710196-062157-963255-132153-137156-089110-153A110-158111-043A111-046A111-055121-003APANEL CONTOLCOVER TOPCOVER BOTTOMPANEL REARAC SOURCE FIXERLED HOLDER 3f (8.5mm)LED HOUSINGKNOB ROTARY (BIG)KNOB ROTARY (S

31、MALL)KNOB PUSHBUSHING PUSH KNOBPAD FOOTGND SCREWSERIAL NO, LABELOWNERS MANUALGIFT BOXPOLYFORMWARRANTY CARDPAN-HEAD TAPPING SCREW (TWINTOOTH)PAN-HEAD TAPPING SCREWFLAT-HEAD TAPPING SCREW (5.1-5.3)BAND-HEAD TAPPING SCREWBAND-HEAD TAPPING SCREWBAND-HEAD TAPPING SCREW/TW-E262-241262-242262-243PRINTED CI

32、RCUIT BOARD SP-1-1PRINTED CIRCUIT BOARD SP-1-2PRINTED CIRCUIT BOARD SP-1-3DescriptionPart #Printed Circuit BoardsItem #123Page 6080-111076-104072-295079-003079-027079-056082-030083-114083-115071-217071-218071-219LED (GREEN/RED) 3 mmTRANSISTOR 2SA1048 (2SA1317)TRANSISTOR 2SC2878SILICON DIODE 1N4148RE

33、CTIFIER DIODE 1N4002ZENER DIODE 1/2 W 3.3VROTARY SWITCH 1-4-3 L=17mm SOUND FIELDPUSH BUTTON SWITCH LOCK;PC1 SW3 BASS ENHANCERPUSH BUTTON SWITCH UNLOCK;PC1 SW2 TEST NOISEROTARY VR 16 mm 10KA2 VOLUMEROTARY VR 16 mm 10KB FADERROTARY VR 9 mm 10KALD1Q1, Q2, Q6Q3-5D1-5, D10-14D6-9ZD1, ZD2SW1SW3SW2VR1VR2VR

34、3-7DesignatorsDescriptionPart #Electrical PartsItem #123456789101112074-022074-163074-168074-172074-171074-173074-174074-175074-088074-089INTEGRATED CIRCUIT LB1403NINTEGRATED CIRCUIT 4558DD (BA15218,M5218A)INTEGRATED CIRCUIT TL072CPINTEGRATED CIRCUIT SSM2005RS-REELINTEGRATED CIRCUIT PIC16C505-04/PIN

35、TEGRATED CIRCUIT NJM78L05AINTEGRATED CIRCUIT NJM78L06AINTEGRATED CIRCUIT NJM79L06AINTEGRATED CIRCUIT NJM7815FAINTEGRATED CIRCUIT NJM7915FAIC1IC2-3,IC12-15IC6IC7IC9IC8IC4IC5IC11IC10DesignatorsDescriptionPart #ICsItem #12345678910Parts Lists - Main PCBParts Lists - Switch PCBLED (RED) 3 mmPOWER SWITCH

36、CERAMIC CAPACITOR UL 0.0047/400VDO3SWO1CO2DesignatorsDescriptionPart #Electrical PartsItem #123080-003083-070151-156074-163INTEGRATED CIRCUIT 4558DD (BA15218,M5218A)IC1-4DesignatorsDescriptionPart #ICsItem #1Parts Lists - Input/Output PCB076-095076-104079-003092-113092-069081-030TRANSISTOR 2SC2878TR

37、ANSISTOR 2SA1048 (2SA1317)SILICON DIODE 1N4148PHONE JACK XLRPHONE JACK XLRSLIDE SWITCH PC1 GND LIFTQ2-11Q1D1-2XLR3-7XLR1-2SW1DesignatorsDescriptionPart #Electrical PartsItem #123456Page 6Main PCBPage 7Input/Output PCBPage 8Switch PCB1234567891011121314151617181920212223242526272829303132333435363738

38、39404142434445464748SSM2005IC7C90.1R18100C19 10uF25VC100.1R26100C1810uF25V-6V+6VC160.1C170.1C2910uF25V23148IC6ATL072CNR27162K1%R2840.2K1%R25787R1%C200.1C221nC211nC3110uF25V657IC6BTL072CNR21787K1%R177.87K1%R23787R1%C80.1C1210nC11100pFC14 0.1C13 0.1R22909R1%R24909R1%C2347nC281uF 50VC150.1R29453R1%R204

39、53R1%R19453R1%R16453R1%C241uF 50VC60.1C271uF25V NPR334.7MR3010KC3022uF25VC341uF 50VC321uF 50VC381uF 50VR311K1%R351K1%C331uF50VC390.1C350.22R32274K1%C421uF25V NPC371uF25V NPR38100K1%C430.1C400.22R41274K1%C360.47C411uF25V NPR343.83K1%R3933.2K1%123X4PLUG3D81N4002D61N4002D71N4002D91N4002C512200uF25VC472

40、200uF25VC48100uF25VC52100uF25VC40.047uFC70.047uF+15V-15V+Vin3GND2+Vout1IC4NJM78L06A+Vin1GND2+Vout3IC11NJM78M15A-Vin2GND1-Vout3IC5NJM79L06A-Vin2GND1-Vout3IC10NJM79M15FA+6V-6V192634785GRDFLTIN-10dB -5dB0dB+3dB+6dB+VccIC1LB1403NR8100KR710KR636KC110uF25VC210uF25VR2100-15VVR510KAR6014.7K1%R5816.5K1%R5514

41、.7K1%C570.22C6247nF23148IC15ANJM4558DD657IC15BNJM4558DDC600.22C610.22R5497.6K1%R57294K1%R594.53K1%251634SW3SW2ENHANCED BASSC450.1LOADDATACLOCKCLOCKDATALOAD+Vin3GND2+Vout1IC8NJM78L05AVR610KA23148IC12ANJM4558DDVR410KALOAD+15V+15V+15V-15V-15V-15VR12.2K12X1PLUG2R3100Q12SA1317R42.2KR92.2KR102.2KQ22SA1317

42、R52.2KR1120KD11N4148D41N4148D111N4148D141N4148+15VGARACLD1LU204615D51N4148D131N4148D121N4148C261uF50VC251uF50V657IC12BNJM4558DDVR310KA23148IC13ANJM4558DD+15V-15V657IC13BNJM4558DD23148IC14ANJM4558DD657IC14BNJM4558DDR5620K1%R5320K1%251634SW2NOISE23148IC3ANJM4558DD657IC3BNJM4558DD23148IC2ANJM4558DD657I

43、C2BNJM4558DDR145.76K1%R125.76K1%R1310K1%R1510K1%+15V-15VZD11N5226 3.3VD101N4148ZD21N5226 3.3VR5220K1%VR710KA342516SW1A4WAY4910811712SW1B4WAY4212220231924SW1D4WAY4151614171318SW1C4WAY4R514.53K1%R504.53K1%R483.32K1%R493.32K1%C310uF25VC510uF25VLmLmLmLmLm+15V-15V12345X2PLUG5C490.1C500.1D21N4148D31N4148R

44、363.32K1%R373.32K1%123VR2A10KB654VR2B10KBNOISENOISER4610KR451KR421KR40100KR431KQ52SC2878Q42SC2878Q32SC2878Q62SA1317R47390KC460.1FADER+15V-15V+15V-15VC540.047uFC550.047uFC560.047uFC530.047uFC590.047uFC580.047uF123VR1A10KA456VR1B10KA123X3PLUG3+15V-15VC440.12 CH4 CH4 CH/DIAGS CVss14VDD1RB52RB43RB34RC55

45、RC46RC37RC28RC19RC010RB211RB112RBO13PIC16C505IC9FADER1234567X5PLUG7RESETRESETR441.5K +5VJP360SUBLFRFLSRS+5V41 STEPGNDSHIELDR6151K+5VC6510uF25VC6610uF25VC6410uF25VC6310uF25VC6710uF25V+5VC19 10uF25VQ102SC2878R54 4.7KR51 33R5247kR56 270 1234567X3PLUG723148IC4ANJM4558DDR60 10K1%213XLR7C23 10uF25VQ112SC2

46、878R554.7kR57 33R5847kR61 270R5910K1%C210.047uFC220.047uF+15V-15VSUBLFRFLSRSQ12SA1317C9220uF25VC74.7uF25VR11390KR10680KR9 1KD21N4148D11N4148+15V-15V657IC4BNJM4558DDC10 10uF25VQ22SC2878R12 4.7KR16 33R1747kR14 27023148IC2ANJM4558DDR15 10K1%213XLR3C12 10uF25VQ32SC2878R194.7kR21 33R2047kR18 270R1310K1%C

47、140.047uFC110.047uF+15V-15VC13 10uF25VQ42SC2878R27 4.7KR22 33R2347kR24 270 657IC2BNJM4558DDR26 10K1%213XLR4C16 10uF25VQ52SC2878R294.7kR30 33R3347kR28 270R2510K1%C15 10uF25VQ62SC2878R35 4.7KR31 33R3247kR34 270 23148IC3ANJM4558DDR43 10K1%213XLR5C18 10uF25VQ72SC2878R364.7kR37 33R3947kR40 270R3810K1%+15

48、V-15VC17 10uF25VQ82SC2878R474.7KR41 33R4247kR44 270 657IC3BNJM4558DDR50 10K1%213XLR6C20 10uF25VQ92SC2878R484.7kR46 33R4947kR53 270R4510K1%RSLSRFLFSUBGNDSHIELD23148IC1ANJM4558DD657IC1BNJM4558DDR810K1%R7 10K1%R110K1%R3 10K1%R5 10K1%R410K1%C1100pFC2100pFC5100pFC6100pFR610K1%R210K1%213XLR2213XLR1123X2PLUG312345X1PLUG5-15V+15VC40.047uFC30.047uF-15V+15VRLRLSHIELDGNDGNDPT1PTSW110-220F1FUSE 0.5ASW1POWER SWAC 220/110 VC58472/400V123213564SW1aSW1bC8103ACGNDAC12X01PLUG2D03SWITCH PCBINPUT/OUTPUT PCBMAIN PCBPage 9Schematic