Gemini-PS676i-mix-sm维修电路原理图.pdf

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1、Page 1 SERVICE MANUAL PS-626i/PS-676i Stereo Preamp Mixers CONTENTS: Connections the RF-45, which has a 45mm travel from side-to-side; and the PSF-45, which features a special “curve” designed for scratch mixing. 1. Unscrew the outside FADER PLATE SCREWS (B). Do not touch INSIDE SCREWS (C). 2. Caref

2、ully remove old Crossfader and unplug CABLE (D). 3. Plug new Crossfader into CABLE (D) and place back into mixer. 4. Screw Crossfader to mixer with FADER PLATE SCREWS (B). RadioFans.CN 收音机爱 好者资料库 Page 6 Your GEMINI mixer comes with an RG-45 PRO (RAIL GLIDE) DUAL-RAIL CROSSFADER. Rail Glide Crossfade

3、rs have internal dual stainless steel rails that allow the slider to ride smoothly and accurately from end to end. 4. CROSSFADER SECTION: The CROSSFADER (25) allows the mixing of one source into another. The left side of the CROSSFADER (25) is channel 2 and the right side is channel 3. 5. BEAT INDIC

4、ATORS: Each side of the CROSSFADER (25) has its own BEAT INDICATOR (23, 24). They flash at the low frequency peak level allowing you to match the beats visually. BEAT INDICATOR (23) will reflect the beat of CH2 and BEAT INDICATOR (24) will do the same for CH3. 6. OUTPUT CONTROL SECTION: The level of

5、 the AMP OUT (38) is controlled by the MASTER (18) control. The BALANCE (17) control will allow the Amp Out signal to be balanced between the left and right speakers. The BOOTH (16) control adjusts the level of the BOOTH OUTPUT (39). HINT: BOOTH OUTPUT (39) IS USED BY SOME DJS TO RUN MONITOR SPEAKER

6、S IN THE DJ BOOTH. YOU CAN ALSO USE IT AS A SECOND ZONE OR AMP OUTPUT. NOTE: THE RECORD OUT (40) HAS NO LEVEL CONTROL. THE LEVEL IS SET BY THE CHANNEL SLIDES AND THE GAIN CONTROLS OF THE SELECTED CHANNEL. TONAL QUALITIES ARE SET BY THE LOW, MID AND HIGH CONTROLS OF THAT SAME CHANNEL. 7. TALKOVER SEC

7、TION: The purpose of the TALKOVER SECTION is to allow the program playing to be muted so that the mic can be heard above the music. When the TALKOVER (19) button is pushed, the TALKOVER INDICATOR (28) will glow and the volume of all sources except the Mic or whatever is connected to the PHONO/LINE (

8、36) input are reduced by 16 dB. 8. CUE SECTION: By connecting a set of headphones to the HEADPHONE (4) jack, you can monitor any or all of the channels. Select the correct CUE (21) button or buttons and their respective CUE LED (5) indicators will glow. Use the CUE LEVEL (20) control to adjust the h

9、eadphone volume without effecting the overall mix. By sliding the CUE PGM PAN (22) control to the left you will be able to monitor the assigned cue signal. Sliding to the right will monitor the PGM (program) output. 9. DISPLAY: The peak hold, dual function DISPLAY (26) indicates either the MASTER (3

10、8) output left and right levels or the channel 2 and channel 3 levels. You can choose the option you want by pressing the DISPLAY (27) button. NOTE: WHEN THE DISPLAY (27) IS IN THE CHANNEL 2/ CHANNEL 3 DISPLAY MODE, BY ADJUSTING THE INDIVIDUAL CHANNEL GAIN AND TONE CONTROLS, YOU CAN INCREASE OR DECR

11、EASE THE SIGNAL TO MATCH THE OTHER CHANNELS SIGNAL. THE CHANNEL SLIDES AND CROSSFADER HAVE NO EFFECT ON THE DISPLAY READINGS. 10. The CROSSFADER CURVE SWITCH (42) allows you to adjust the kind of curve the crossfader has. Move switch to the “sharp” position to make the curve steep and cutting (perfe

12、ct for scratching ). Move switch to the “gradual” position to make the curve gradual and gentle. The CROSSFADER REVERSE SWITCH (43) allows you to reverse the crossfader so that CHANNEL 3 is controlled by the left side of the crossfader and CHANNEL 2 is controlled by the right side of the crossfader.

13、 NOTE: WHEN THE CROSSFADER REVERSE SWITCH (43) IS ACTIVATED, ONLY THE CROSSFADER REVERSES. THE CHANNEL SLIDES, GAIN, AND TONAL CONTROLS DO NOT REVERSE. SAMPLER OPERATION (PS-676i only): The PS-676i Sampler uses Dynamic RAM Memory and a 12 bit microprocessor controller. The full bandwidth results in

14、true sound reproduction. RECORD SAMPLE: 1. Put the MODE SELECTOR (45) switch into the WRITE position. 2. Select the source you want to sample from by pressing the appropriate ASSIGN BUTTON(51). 3. The PS-676i is equipped with a SAMPLER REC/PLAY LEVEL (50) control.When the MODE SELECTOR (45) is in th

15、e WRITE mode, this control acts as a record level control. If the OVERLOAD INDICATOR (49) is blinking, it means that the input signal you are going to sample is too strong and will cause the sample to be distorted. Lower the sample signal intensity by tuming the SAMPLER REC/PLAY LEVEL (50) control c

16、ounterclockwise. 4. If the OVERLOAD INDICATOR (49 ) is off, turn the SAMPLER REC/ PLAY LEVEL (50) control clockwise until the OVERLOAD INDICATOR (49) begins to blink and then turn the SAMPLER REC/ PLAY LEVEL (50) counter clockwise until the OVERLOAD INDICATOR (49) just goes off. 5. Tapping the START

17、/STOP (48) button begins the sampling process (the SAMPLER INDICATOR (47) will illuminate RED). Tapping the START/STOP (48) button a second time ends the sample (the SAMPLER INDICATOR (47) will turn off). If you do not tap the START/STOP (48) button a second time, the sampling process will stop auto

18、matically after 12 seconds. SAMPLE PLAYBACK: 1. Put the MODE SELECTOR (45) switch into the SINGLE or REPEAT position. 2. When the MODE SELECTOR (45) is in the SINGLE or REPEAT mode, the SAMPLER REC/PLAY LEVEL (50) control acts as a Sampler Level Control. 3. Tapping the START/STOP (48) button with th

19、e MODE SELECTOR (45) in the SINGLE position will cause the sampler to playback one time (the SAMPLER INDICATOR (47) will illuminate GREEN). Every push of the START/STOP (48) button will restart the sample from the beginning. Rapid pressing of the START/STOP (48) button will cause a stuttering effect

20、. Once the sample has started playback and the START/STOP (48) button is not pushed a second time, the sample will play to the end and then stop (the SAMPLER INDICATOR (47) will illuminate turn off). 4. Tapping the START/STOP (48) button with the MODE SELECTOR (45) in the REPEAT position will cause

21、the sample to continuously play over and over (the SAMPLER INDICATOR (47) will illuminate GREEN). The START/STOP (48) button will act as an on/off switch. The first push will start the sample, the second push will stop it. ROBO PLAY: 1. With the ROBO PLAY (42) button in the OFF position (the ROBO PL

22、AY INDICATOR (43) will be OFF ) and the MODE SELECTOR (45) switch in either the SINGLE or REPEAT mode, pressing the START/ STOP (48) will cause the sample to play along with the signal going through the mixer. 2. When the ROBO PLAY (42) button is in the ON position (the ROBO PLAY INDICATOR (43) illu

23、minates RED), starting the sampler mutes the signal going through the mixer. When the sample ends, the signal automatically turns back on. PITCH CONTROL: The PS-676i comes equipped with a sampler PITCH (44) control. To adjust the tone of a sample, turn the knob to the left to slow the pitch and to t

24、he right to speed up the pitch after a sample has been recorded. The pitch can also be set while recording a sample. PAN CONTROL: SAMPLER PAN (46): This lets you hear the sample in either stereo mode or by turning SAMPLER PAN (46) to the left or right will change the range from the left channel to t

25、he right channel of sound, for the sample. RadioFans.CN 收音机爱 好者资料库 Page 7 SPECIFICATIONS FOR PS-676i: INPUTS: DJ Mic.1.5mV 2 k unbalanced Phono.3mV 47 k Line.150 mV 27 k OUTPUTS: Amp/Booth.0 dB 775mV 400 Max.24V Peak-to-Peak Rec.225mV 5 k SAMPLER: Sampler System.12 Bit Sampling Sample Length .12 Sec

26、onds Total Memory Capacity .1 Mbit GENERAL: Low .+ 12dB/- 32 dB Mid .+ 12dB/- 32 dB High.+ 12dB/- 32 dB Gain (Mic).0 to -40dB Gain (Chnls 1-3).0 to -20dB Frequency Response.20Hz - 20kHz +/- 2dB Distortion.less than 0.02% S/N Ratio.better than 80dB Talkover Attenuation.16dB Power Source.115/230V 50/6

27、0Hz 15W Dimensions.254mmW x 305mmD x 112mmH 10”W x 12”D x 4 7/16”H Weight.6.5 lbs(3 Kg) SPECIFICATIONS for PS-626i: INPUTS: DJ Mic.1.5mV 2 k unbalanced Phono 1 kHz.2 mV 47 k Line.100 mV 27 k OUTPUTS: Amp/Booth.0 dB 775mV 400 Max.24V Peak-to-Peak Rec.225mV 5 k GENERAL: Bass .+ 12dB/- 32 dB Mid .+ 12d

28、B/- 32 dB Treble .+ 12dB/- 32 dB Gain (Mic).0 to -40dB Gain (Chnls 1-3).0 to -20dB Frequency Response.20Hz - 20kHz +/- 2dB Distortion.less than 0.02% S/N Ratio.better than 80dB Talkover Attenuation.16dB Power Source.115/230V 50/60Hz 20W Dimensions.254mmW x 305mmD x 112mmH 10”W x 12”D x 4 7/16”H Weig

29、ht.6.5 lbs(3 Kg) RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好者资料库 RadioFans.CN 收音机爱 好

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31、er Place, Edison, NJ 08837 USA Tel: (732) 738-9003 Fax: (732) 738-9006 France G.S.L. France 11, Avenue Leon Harmel, Z.I. Antony, 92160 Antony, France Tel: + 33 (0) 1 55 59 04 70 Fax: + 33 (0) 1 55 59 04 80 Germany Gemini Sound Products GmbH Ottostrasse 6, 85757 Karlsfeld, Germany Tel: 08131 - 39171-

32、0 Fax: 08131 - 39171-9 UK Gemini Sound Products Unit C4 Hazleton Industrial Estate, Waterlooville, UK P08 9JU Tel: 087 087 00880 Fax: 087 087 00990 Spain Gemini Sound Products S.A. Rosello, 516, Barcelona, Spain, 08026 Tel: 349-3435-0814 Fax: 3493-347-6961 Gemini Sound Products Corp. 2003 All Rights

33、 Reserved. Parts of the design of this product may be protected by worldwide patents. Information in this manual is subject to change without notice and does not represent a commitment on the part of the vendor. Gemini Sound Products Corp. shall not be liable for any loss or damage whatsoever arisin

34、g from the use of information or any error contained in this manual. No part of this manual may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, electrical, mechanical, optical, chemical, including photocopying and recording, for any purpose withou

35、t the express written permission of Gemini Sound Products Corp. It is recommended that all maintenance and service on this product is performed by Gemini Sound Products Corp. or its authorized agents. Gemini Sound Products Corp. will not accept liability for loss or damage caused by maintenance or repair performed by unauthorized personnel. In the USA: If you experience problems with this unit, call 1-732-738-9003 for Gemini Customer Service. Do not attempt to return this equipment to your dealer. RadioFans.CN 收音机爱 好者资料库