Rolls MX902 Mixer Manual & Schematic 电路图.pdf

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1、MX902 Professional Compact Mixer -OO +15 LEVEL -OO +15 LEVEL HDPHN 0 10 AUX 2 RETURN 0 10AUX 1 RETURN AUX 2 RET LRCLIPPWR HDPHN OUT MAIN MX902 R L 0 10 -15 +15 AUX 1 0 10 AUX 2 60 LOW 12.5 k HIGH L R BAL -15 +15 LEVEL -OO +15 8/9 0 100 100 100 100 10 -15 +15 AUX 1 0 10 AUX 2 60 LOW 12.5 k HIGH L R P

2、AN -15 +15 LEVEL -OO +15 -15 +15 AUX 1 0 10 AUX 2 60 LOW 12.5 k HIGH L R PAN -15 +15 LEVEL -OO +15 -15 +15 AUX 1 0 10 AUX 2 60 LOW 12.5 k HIGH L R PAN -15 +15 LEVEL -OO +15 -15 +15 AUX 1 0 10 AUX 2 60 LOW 12.5 k HIGH L R BAL -15 +15 LEVEL -OO +15 -15 +15 AUX 1 0 10 AUX 2 60 LOW 12.5 k HIGH L R BAL -

3、15 +15 LEVEL -OO +15 1234/56/7 +6+50 MIC 1MIC 2MIC 3 LINE 1 -6 dB LINE 2 -6 dB LINE 3 -6 dB 5/RIGHT7/RIGHT9/RIGHT 4/LEFT/MONO6/LEFT/MONO8/LEFT/MONO AUX 1 SEND AUX 2 SENDLEFT OUTRIGHT OUT AUX 1 RET LEFT/MONO AUX 1 RET RIGHT PHANTOM PWR dB +6+50 dB +6+50 dB 12 - 18 VDC + - POWER TRIMTRIMTRIM OWNERS MA

4、NUAL RadioFans.CN 收音机爱 好者资料库 Thank you for purchasing the ROLLS MX902 Professional Mixer. This unit is designed and manufactured to provide years of useful service. Please read the following manual carefully. The MX902 is a compact mixer for small mixing applications. It has an external power supply

5、 adding to its already quiet and transparent operation. An important feature of the MX902 is its ability to operate on +12 to +16 Volts DC. This means that the unit is perfect for mobile sound reinforcement where a car or camera battery may be the only source of power. The MX902 is in a durable stee

6、l chassis, and may be optionally rackmounted. FEATURES Runs on +12 Volts DC - perfect for mobile operation 3 XLR Mic Inputs each with trim control 9 Total 1/4 unbalanced inputs, RCA Tape Inputs +24 Volt Phantom Power 2-band EQ 2 Auxiliary Sends; 1 pre-fade, 1 post-fade 2 Stereo Auxiliary Returns Bal

7、anced 1/4 Outputs Tape Outputs are pre-Master fader Tape Inputs share the Aux 1 bus Headphone Output w/level control INSPECTION 1. Unpack and inspect the MX902 box and package. If obvious physical damage is noticed, contact the carrier immediately to make a damage claim. We suggest saving the shippi

8、ng carton and packing materials for safely transporting the unit in the future. 2. Please complete the Warranty Registration Card and return it to the factory. TABLE OF CONTENTS Introduction.1 Features. Inspection. Front Panel Description . 2 Channel Descriptions. The EQ Section. The Auxiliary Secti

9、on . Pan/Bal Controls . Level Control. Master Section. Auxiliary Return Controls . Headphone. Master Level. Jack Panel Description . 3 Channel Inputs . Trim Controls. Main Right and Left Outputs . Auxiliary Outputs and Inputs . Phantom Powering . Operation. 4 Signal Processor Connection . 5 Live Exa

10、mple. Schematic. 6 Specifications and Warranty . Rear Cover 1 RadioFans.CN 收音机爱 好者资料库 Front Panel CHANNEL DESCRIPTIONS HIGH: Boosts or cuts the 12.5 kHz or high frequency portion of the signal. LOW: Boosts or cuts the 60 Hz or low frequency portion of the signal. AUX 2: Controls the amount of post-f

11、ader signal that is sent to the Aux 2 bus and output. AUX 1: Controls the amount of pre-fader signal that is sent to the Aux 1 bus and output. PAN: Varies the amount of relative signal sent from Channels 1 through 3 to the Main Level control. BAL: Varies the amount of stereo signal from channels 5/6

12、 through 8/9 to the Main Level control. LEVEL: Controls the overall output signal level of the channel. MASTER DESCRIPTIONS AUX 2 RETURN: Controls the amount of input signal from the RCA Aux 2 Return jacks. AUX 1 RETURN: Controls the amount of input signal from the Aux 1 Right and Left Return jacks.

13、 HEADPHONE LEVEL: Controls the amount of level of signal from the Headphone Output. HEADPHONE OUTPUT: 1/4” TRS stereo jack for connection to stereo headphones. NOTE: Do not use a mono 1/4” TS plug in this jack. Doing so may result in serious damage to the MX902. MAIN LEVEL: Controls the amount of si

14、gnal sent to the Right/Left output jacks. -OO +15 LEVEL -OO +15 LEVEL HDPHN 0 10 AUX 2 RETURN 0 10AUX 1 RETURN AUX 2 RET LRCLIPPWR HDPHN OUT MAIN MX902 L R 12 - 18 VDC + - POWER 0 100 10 -15 +15 AUX 1 0 10 AUX 2 60 LOW 12.5 k HIGH L R PAN -15 +15 LEVEL -OO +15 -15 +15 AUX 1 0 10 AUX 2 60 LOW 12.5 k

15、HIGH L R BAL -15 +15 LEVEL -OO +15 34/5 2 RadioFans.CN 收音机爱 好者资料库 Jack Panel Description +6+50 MIC 1MIC 2MIC 3 LINE 1 -6 dB LINE 2 -6 dB LINE 3 -6 dB 5/RIGHT7/RIGHT9/RIGHT 4/LEFT/MONO6/LEFT/MONO8/LEFT/MONO AUX 1 SEND AUX 2 SENDLEFT OUTRIGHT OUT AUX 1 RET LEFT/MONO AUX 1 RET RIGHT PHANTOM PWR dB +6+5

16、0 dB +6+50 dB TRIMTRIMTRIM Channels 1 through 3 MIC INPUT: XLR input jack for microphone level or balanced signals. TRIM: Controls the amount of input gain from +6 to +50 dB. LINE: 1/4” unbalanced input for instrument of line level signals. PHANTOM POWER SWITCH: Engages the +24 volts of phantom powe

17、r, used to power con- denser microphones. Channels 4/5 through 8/9 LEFT: 1/4” unbalanced input for instrument or line level signals. RIGHT: 1/4” unbalanced input for instrument or line level signals. Master AUX 1 and 2 SEND: 1/4” unbalanced jacks for sending out the signals present on the Aux 1 and

18、2 buses. RIGHT OUT: 1/4” TRS balanced main right output. LEFT OUT: 1/4” TRS balanced main left output. AUX 1 RET. RIGHT and LEFT: 1/4” unbalanced jacks for receiving stereo signals sent from the Aux 1 bus (usually through an effects processor). AUX 2 RET. Stereo RCA jacks for receiving stereo signal

19、s send from the Aux 2 bus, or may be used as an auxiliary stereo source input such as a CD or cassette player. Side Panel 12 - 18 VDC: For connection to a sleeve positive, DC power adapter. POWER Switch: Applies power to the MX902 when connected to a proper power source. 3 +6+50 MIC 1MIC 2MIC 3 LINE

20、 1 -6 dB LINE 2 -6 dB LINE 3 -6 dB 5/RIGHT7/RIGHT9/RIGHT 4/LEFT/MONO6/LEFT/MONO8/LEFT/MONO AUX 1 SEND AUX 2 SENDLEFT OUTRIGHT OUT AUX 1 RET LEFT/MONO AUX 1 RET RIGHT PHANTOM PWR dB +6+50 dB +6+50 dB to Effects Input from Right Output from Left Output STEREO EFFECTS DEVICE SIGNAL PROCESSOR CONNECTION

21、 Use Aux 1 Output to connect to the Input of your signal processor which may be an echo unit, a reverb, or multi effects unit. Aux 1 is used because the signal is taken after the channel fader which is a typical setup for a signal processor. The right and left outputs of the processor are then conne

22、cted to the Aux 1 Right and Left Return jacks. The level of signal going into the signal pro- cessor is controlled by the Aux 1 control on each individual MX902 channel, and the signal processors input level control. The level of signal going back into the MX902 is controlled by Aux 1 Return Level c

23、ontrol on the MX902 front panel, and by the signal processors output level control. 4 +6+50 MIC 1MIC 2MIC 3 LINE 1 -6 dB LINE 2 -6 dB LINE 3 -6 dB 5/RIGHT7/RIGHT9/RIGHT 4/LEFT/MONO6/LEFT/MONO8/LEFT/MONO AUX 1 SEND AUX 2 SENDLEFT OUTRIGHT OUT AUX 1 RET LEFT/MONO AUX 1 RET RIGHT PHANTOM PWR dB +6+50 d

24、B +6+50 dB VOLUME 1VOLUME 2 POWER AMPLIFIER RA2100B MAINS AMPLIFIER MONITOR AMPLIFIER LIVE CONNECTION EXAMPLE The diagram shown below is a possible connection scheme for a live application. Connect instru- ments and microphones to the appropriate input jacks. If condenser microphones requiring phan-

25、 tom power are being used, press the Phantom Power switch in. Aux 2 is used as a monitor output because the signal is taken before the channel fader - this is typically a monitor send. Aux 1 may be connected to a signal processor as shown on page 4. Connect the Right and Left main outputs to the mai

26、n amplification system. If the system being used is mono, either MX902 Right or Left output may be used. 5 SCHEMATIC 6 Sheet: 1 of 1 ROLLS CORPORATION 5968 South 350 West Salt Lake City, UT 84107 Sheet: 1 of 1 ROLLS CORPORATION 5968 South 350 West Salt Lake City, UT 84107 Title: MX902 12v Mic/Line M

27、ixer Size: Date: 2-Aug-2000 Title: MX902 12v Mic/Line Mixer Size: Date: 2-Aug-2000 RbRb +12V+12V +12V+12V ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

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29、? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? +12V+12V +12V+12V ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? +12V+12V ? ? ? ? ? ? ? ? ? ? ? +12V+12V ? ? ? ? ? +12V+12V ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

30、 ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? -12V-12V +12V+12V ? ? ? ? ? ? ? ? ? +12V+12V ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? VCCVCC BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIA

31、S BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS BIASBIAS +12v+12v +12V+12V +24V+24V ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ! ? ? ? ? ? ? ? ! ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?

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35、 ? ? ? ? ! ? ? ? ! ? ? ! ? ! ? ? ? ? ? ! ? ? ? ? ? ! ? ? ? ? ? $ ? ! ? ? ? ! ? ? $ ? ! ? ? ? ! ? ? $ ? ! ? ? ? ! ? ? $ ? ! ? ? ? ! ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ! ? ? ? ? ! ? ? ? ! ? ? ? ! ? ? ? ? ! ? ? ? ? ! ? ? ? ? ? ? ? ? ? ? ? ? ? ! ? ! ! ? ? ? ! ? ! ! ? ? ? ! ? ? ?

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