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 2 123456789 10111213 1415 16171819202122 RadioFans.CN 收音机爱 好者资料库 Page 3 1 Front Left Speaker 2 Front Right Speaker 3 Rear Left Speaker 4 Rear Right Speaker 5 Subwoofer Two Channel Stereo Configuration Two Channel Four Speaker Stereo Configuration Two Channel Four Speaker

2、 Stereo Diagonal Configuration Circle Surround Configuration DANCE FLOORDANCE FLOOR OFF OFF DANCE FLOOR DANCE FLOOR RadioFans.CN 收音机爱 好者资料库 Page 4 Connections 1. Before plugging in the power cord, make sure that the VOLTAGE SELECTOR (9) switch is set to the correct voltage. 2. Make sure that the POW

3、ER (10) switch is in the off position. The POWER LED (11) will be off. All connections must be made with all equipment 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 your mixer using standard XLR cables. Th

4、e balanced inputs have three separate conductors, two of which are signal (positive and negative) and one which is a shield (ground). Pin 1 is ground (shield). Pin 2 is signal hot (positive). Pin 3 is signal cold (negative). 4. The SP-1 is supplied with 5 BALANCED OUTPUTS (1, 2, 3, 5, 6). The BALANC

5、ED OUTPUT connectors are used to connect to your amplifiers using standard XLR cables. Connect the BALANCED OUTPUT (1) to the amplifier for the subwoofer. Connect the BALANCED OUTPUT (2) to the amplifier for the rear right speaker. Connect the BALANCED OUTPUT (3) the amplifier for the rear left spea

6、ker. Connect the BALANCED OUTPUT (5) to the amplifier for the front right speaker. Connect the BALANCED OUTPUT (6) to the amplifier for the front left speaker. The BALANCED OUTPUTS have three separate conductors, two of which are signal (positive and negative) and one which is a shield (ground). Pin

7、 1 is ground (shield). Pin 2 is signal hot (positive). Pin 3 is signal cold (negative). Speaker Placement Just like in a theater or a home surround system set up, speaker placement should be arranged to create a box in order to maximize the effect of the SP-1. Refer to Page 2 for greater detail. Pos

8、ition the subwoofer between the front speakers. If you position the subwoofer in front of a wall or facing away from a corner, you will gain subwoofer output. Using the Ground Lift Switch Depending on your system configuration, sometimes applying the ground will create a quieter signal path. Sometim

9、es lifting the ground can eliminate ground loops and hum to create a quieter signal path. 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 left position). 2. Then turn the power off before moving the GROUND LIFT SWI

10、TCH (4). Lift the ground by moving the GROUND LIFT SWITCH to the right, turn the power back on and listen to determine which position will provide a signal devoid of background noise and hum. Keep the GROUND LIFT SWITCH in the ground position if the noise level remains the same in either position. C

11、AUTION: Do not terminate the AC ground on the unit in any way. Termination of the AC ground can be hazardous. Operation 1. After you have finished connection and placing the speakers in their proper position, turn the POWER (10) on to the SP-1 (the POWER LED (11) will glow) and the rest of your equi

12、pment. Note: Turn on your equipment in the order that the sound travels, beginning with the source and ending with the amps. 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 cycle through each speaker (except the subw

13、oofer) so that you may monitor the levels of each speaker individually. While standing in the center of the dance 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 ch

14、annels. Note: The REAR EFFECT LEVEL (14) is disabled in test mode. When youve finished the test, use the SUBWOOFER OUTPUT LEVEL (21) control to adjust the output level of the subwoofer. Note: The subwoofer will work in all modes of operation and is always on. Disconnect the subwoofer if you dont wan

15、t to use it. See the Bass Enhancer instructions for more information. Front Panel Controls 1. Volume Control: Use the VOLUME (13) control to adjust the overall volume. 2. Rear Effect Level: Starting from the center position, use the REAR EFFECT LEVEL (14) to adjust the rear speaker levels. You may b

16、oost the rear channels if you feel not enough sound is coming from them. You can also readjust the rear levels for music with varying spatial information. 3. Sound Field: Use the SOUND FIELD (15) control to choose a mode of operation. 4. Test Button: In Circle Surround mode, press the TEST (16) butt

17、on on the SP-1, and white noise will cycle through each speaker (except the subwoofer) so that you may monitor the levels of each speaker individually. The test button is recessed so you can not accidentally initiate a test in the middle of your music program. 5. Output Level Controls: Use the OUTPU

18、T LEVEL (17, 18, 19, 20) controls to preadjust the output levels of the 4 channels to compensate for different amps and speaker sensitivity. Use the SUBWOOFER OUTPUT LEVEL (21) control to adjust the output level of the subwoofer. 6. Bass Enhancer: Press the BASS ENHANCER (22) button to boost the lev

19、el of the bass of the subwoofer by +6 dB at 40 Hz. The Bass Enhancer works optimally with most vented prosound subwoofers, and when activated, special filters shape the frequency response to optimize bass performance while cutting subsonic frequencies. Note: the Bass Enhancer only boosts the bass fr

20、om the subwoofer output. 7. Signal LED: The multi-color SIGNAL LED (12) indicates the level of the signal and changes color incrementally from green to red. When the SIGNAL LED (12) glows red, the unit is in overload, and you should lower the VOLUME (13). Sometimes you can also stop an overload by l

21、owering the REAR EFFECT LEVEL (14) or the SUBWOOFER OUTPUT LEVEL (21). Ideally, the SIGNAL LED (12) should flash between green and orange. Modes of Operation Use the SOUND FIELD (15) control to choose one of the following modes of operation: 1. Two Channel Stereo: In this standard stereo mode, the r

22、ear speakers are disengaged and only the front speakers function. 2. Two Channel Four Speaker Stereo: In this four speaker stereo mode, the rear speakers mirror the front speakers program signal. 3. Two Channel Four Speaker Stereo Diagonal: With diagonal mode, the rear right and left sides reverse s

23、o that the rear right speaker mirrors the front left speakers program signal and the rear left speaker mirrors the front right speakers program signal. This mode is useful in large rooms or club environments to avoid people on one side of the room hearing only one channel of a stereo program. 4. Cir

24、cle Surround: In Circle Surround sound mode, any stereo signal can be used to generate surround play. A frequency and phase dependent amplitude based signal processor uses ambiance and directional information already present in the stereo signal to generate 3D surround sound. And unlike other surrou

25、nd formats where the rear output is mono and bandwidth limited, Circle Surround separates the left and right rear channels with full bandwidth. In this mode, the rear speakers will not output the full program (the rear levels will be lower than the front), because the rear speakers are used to creat

26、e an enhanced spatial perception. Note: The Circle Surround Experience is dependent on the source itself, therefore some tracks of music may sound better in Circle Surround than others. Signals encoded for Circle Surround will give you the best circle surround experience. RadioFans.CN 收音机爱 好者资料库 Pag

27、e 5 Specifications Balanced Inputs: Sensitivity.1 VRMS Impedance.20 kOhm Balanced Outputs: Level.2 VRMS Impedance.600 Ohm Frequency Response: Stereo Mode.10 Hz - 60 kHz +0, -1 dB Circle Surround Mode.10 Hz - 22 kHz +0, -1dB Distortion: Stereo Mode.0.01% Circle Surround Mode.90 dB Circle Surround Mod

28、e Front Channels.80 dB Circle Surround Mode Rear Channels.55 dB Subwoofer Channel: Low Pass Filter. 100 Hz, 12 dB/oct High Pass Filter. 15 Hz, 6 dB/oct High Pass Filter in Enhanced Mode.+ 6 dB 40 Hz (Q=2), 12 dB/oct Rear Channel Effect Max./Min. Ratio.12 dB Power Source.115V/230V, 60 Hz/50 Hz Power

29、Consumption.10 W Dimensions.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. in the United States and selected foreign countries. Circle Surround technology is incorporated under license from SRS Labs, Inc. is a trademar

30、k of Valence Technology Limited, in China, Hong Kong and Taiwan. CS technology is incorporated with permission of Valence Technology Limited. DescriptionPart # Cabinet Parts and Packing 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Item # Parts Lists 002-292 031-035 032-070 034-070

31、022-305 003-998 003-733 003-139 003-140 002-536 002-537 049-206 146-710 196-062 157-963 255-132 153-137 156-089 110-153A 110-158 111-043A 111-046A 111-055 121-003A PANEL CONTOL COVER TOP COVER BOTTOM PANEL REAR AC SOURCE FIXER LED HOLDER 3f (8.5mm) LED HOUSING KNOB ROTARY (BIG) KNOB ROTARY (SMALL) K

32、NOB PUSH BUSHING PUSH KNOB PAD FOOT GND SCREW SERIAL NO, LABEL OWNERS MANUAL GIFT BOX POLYFORM WARRANTY CARD PAN-HEAD TAPPING SCREW (TWIN TOOTH)PAN-HEAD TAPPING SCREW FLAT-HEAD TAPPING SCREW (5.1-5.3) BAND-HEAD TAPPING SCREW BAND-HEAD TAPPING SCREW BAND-HEAD TAPPING SCREW/TW-E 262-241 262-242 262-24

33、3 PRINTED CIRCUIT BOARD SP-1-1 PRINTED CIRCUIT BOARD SP-1-2 PRINTED CIRCUIT BOARD SP-1-3 DescriptionPart # Printed Circuit Boards Item # 1 2 3 RadioFans.CN 收音机爱 好者资料库 Page 6 080-111 076-104 072-295 079-003 079-027 079-056 082-030 083-114 083-115 071-217 071-218 071-219 LED (GREEN/RED) 3 mm TRANSISTO

34、R 2SA1048 (2SA1317) TRANSISTOR 2SC2878 SILICON DIODE 1N4148 RECTIFIER DIODE 1N4002 ZENER DIODE 1/2 W 3.3V ROTARY SWITCH 1-4-3 L=17mm SOUND FIELD PUSH BUTTON SWITCH LOCK;PC1 SW3 BASS ENHANCER PUSH BUTTON SWITCH UNLOCK;PC1 SW2 TEST NOISE ROTARY VR 16 mm 10KA2 VOLUME ROTARY VR 16 mm 10KB FADER ROTARY V

35、R 9 mm 10KA LD1 Q1, Q2, Q6 Q3-5 D1-5, D10-14 D6-9 ZD1, ZD2 SW1 SW3 SW2 VR1 VR2 VR3-7 DesignatorsDescriptionPart # Electrical Parts Item # 1 2 3 4 5 6 7 8 9 10 11 12 074-022 074-163 074-168 074-172 074-171 074-173 074-174 074-175 074-088 074-089 INTEGRATED CIRCUIT LB1403N INTEGRATED CIRCUIT 4558DD (B

36、A15218,M5218A) INTEGRATED CIRCUIT TL072CP INTEGRATED CIRCUIT SSM2005RS-REEL INTEGRATED CIRCUIT PIC16C505-04/P INTEGRATED CIRCUIT NJM78L05A INTEGRATED CIRCUIT NJM78L06A INTEGRATED CIRCUIT NJM79L06A INTEGRATED CIRCUIT NJM7815FA INTEGRATED CIRCUIT NJM7915FA IC1 IC2-3,IC12-15 IC6 IC7 IC9 IC8 IC4 IC5 IC1

37、1 IC10 DesignatorsDescriptionPart # ICs Item # 1 2 3 4 5 6 7 8 9 10 Parts Lists - Main PCB Parts Lists - Switch PCB LED (RED) 3 mm POWER SWITCH CERAMIC CAPACITOR UL 0.0047/400V DO3 SWO1 CO2 DesignatorsDescriptionPart # Electrical Parts Item # 1 2 3 080-003 083-070 151-156 074-163INTEGRATED CIRCUIT 4

38、558DD (BA15218,M5218A) IC1-4 DesignatorsDescriptionPart # ICs Item # 1 Parts Lists - Input/Output PCB 076-095 076-104 079-003 092-113 092-069 081-030 TRANSISTOR 2SC2878 TRANSISTOR 2SA1048 (2SA1317) SILICON DIODE 1N4148 PHONE JACK XLR PHONE JACK XLR SLIDE SWITCH PC1 GND LIFT Q2-11 Q1 D1-2 XLR3-7 XLR1

39、-2 SW1 DesignatorsDescriptionPart # Electrical Parts Item # 1 2 3 4 5 6 RadioFans.CN 收音机爱 好者资料库 Page 6 Main PCB RadioFans.CN 收音机爱 好者资料库 Page 7 Input/Output PCB RadioFans.CN 收音机爱 好者资料库 Page 8 Switch PCB RadioFans.CN 收音机爱 好者资料库 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 2425 26 27 28

40、29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 SSM2005 IC7 C9 0.1 R18 100 C19 10uF25V C10 0.1 R26100 C18 10uF25V -6V +6V C16 0.1 C17 0.1 C29 10uF25V 2 3 1 48 IC6A TL072CN R27 162K1% R28 40.2K1% R25 787R1% C20 0.1C22 1n C21 1n C31 10uF25V 6 5 7 IC6B TL072CN R21 787K1% R17 7.87K1% R23 787

41、R1% C8 0.1 C12 10n C11 100pF C14 0.1 C13 0.1 R22909R1% R24909R1% C23 47n C28 1uF 50V C15 0.1 R29 453R1% R20453R1% R19453R1% R16 453R1% C24 1uF 50V C6 0.1 C27 1uF25V NP R33 4.7MR30 10K C30 22uF25VC34 1uF 50V C32 1uF 50V C38 1uF 50V R31 1K1% R35 1K1% C33 1uF50V C39 0.1 C35 0.22 R32 274K1% C42 1uF25V N

42、P C37 1uF25V NP R38 100K1% C43 0.1 C40 0.22 R41 274K1% C36 0.47 C41 1uF25V NP R34 3.83K1% R39 33.2K1% 1 2 3 X4 PLUG3 D8 1N4002 D6 1N4002 D7 1N4002 D9 1N4002 C51 2200uF25V C47 2200uF25V C48 100uF25V C52 100uF25V C4 0.047uF C7 0.047uF +15V -15V +Vin 3 GND 2 +Vout 1 IC4 NJM78L06A +Vin 1 GND 2 +Vout 3 I

43、C11 NJM78M15A -Vin 2 GND 1 -Vout 3 IC5 NJM79L06A -Vin 2 GND 1 -Vout 3 IC10 NJM79M15FA +6V -6V 1 9 2 6 3 4 7 8 5 GRDFLTIN -10dB -5dB0dB+3dB+6dB+Vcc IC1 LB1403N R8 100K R7 10K R6 36K C1 10uF25V C2 10uF25V R2 100 -15V VR5 10KA R60 14.7K1% R58 16.5K1% R55 14.7K1% C57 0.22 C62 47nF 2 3 1 48 IC15A NJM4558

44、DD 6 5 7 IC15B NJM4558DD C60 0.22 C61 0.22 R54 97.6K1% R57 294K1% R59 4.53K1% 25 1 6 3 4 SW3 SW2 ENHANCED BASS C45 0.1 LOAD DATA CLOCK CLOCK DATA LOAD +Vin 3 GND 2 +Vout 1 IC8 NJM78L05A VR6 10KA 2 3 1 48 IC12A NJM4558DD VR4 10KA LOAD +15V +15V +15V -15V -15V -15V R1 2.2K 1 2 X1 PLUG2 R3 100 Q1 2SA13

45、17 R4 2.2K R9 2.2K R10 2.2K Q2 2SA1317 R5 2.2K R11 20K D1 1N4148 D4 1N4148 D11 1N4148 D14 1N4148 +15V GA RAC LD1LU204615 D5 1N4148 D13 1N4148 D12 1N4148 C26 1uF50V C25 1uF50V 6 5 7 IC12B NJM4558DD VR3 10KA 2 3 1 48 IC13A NJM4558DD +15V -15V 6 5 7 IC13B NJM4558DD 2 3 1 48 IC14A NJM4558DD 6 5 7 IC14B

46、NJM4558DD R56 20K1% R53 20K1% 25 1 6 3 4 SW2 NOISE 2 3 1 48 IC3A NJM4558DD 6 5 7 IC3B NJM4558DD 2 3 1 48 IC2A NJM4558DD 6 5 7 IC2B NJM4558DD R14 5.76K1% R12 5.76K1% R13 10K1% R15 10K1% +15V -15V ZD1 1N5226 3.3V D10 1N4148 ZD2 1N5226 3.3V R52 20K1% VR7 10KA 3 4 2 5 1 6 SW1A 4WAY4 9 10 8 11 7 12 SW1B 4WAY4 21 22 20 23 19 24 SW1D 4WAY4 15 16 14 17 13 18