GEMINI EX-26 Service Manual

www.geminidj.com

EX-26

SERVICE MANUAL

Features, Operating Instructions………………. Page 2 Specifications……………………………………. Page 3 Diagrams………………………………………… Page 4 Parts List…………………………………………. Page 7 Schematics………………………………………. Page 12

Congratulations on purchasing the Gemini EX-26 mixer! This state of the art mixer is backed by a three-year warranty, excluding crossfader and channel slides. We know you’re anxious to hook everything up and start mixing beats and cranking up the volume on those hot dance tracks, but we suggest reading this instruction manual first as there are really cool features on this mixer that we wouldn’t want you to miss!

The EX-26 Mixer features a crossfader which controls a super-quiet photo coupler to give you smooth operation and the cleanest possible sound, along with a "hamster" switch that is easily accessible on the front of the mixer. This “hamster” switch reverses the direction of the main crossfader. This mixer also features individual “hamster” switches for the separate channel input faders as well. For additional information, refer to the diagrams on pages 1 & 2 for crossfader adjustment and channel slide curve.

• 2 Stereo Channels

In the U.S.A., if you have any problems with this

unit, call 1-732-738-9003 for customer service.

Do not return equipment to your dealer.

4. Do not expose this unit to direct sunlight or to a heat source such as a radiator or stove.

5. This unit should be cleaned only with a damp cloth. Avoid solvents or other cleaning detergents.

6. When moving this equipment, it should be placed in its original carton and packaging. This will reduce the risk of damage during transit.

7. Do not expose this unit to rain or moisture.

8. Do not use any spray cleaner or lubricant on any controls or switches.

• State of the Art Cue Section

• 2 Phono & 2 Line Inputs

• Channel Slide Curve Control

• Crossfader with Curve Control

• Adjustable Input Assign Switches

• Crossfader Reverse (Hamster) Button

• Individual Channel Fader Reverse (Hamster) Buttons

• LED Display

• Gain, High, Mid and Low tone controls for each channel

• Balanced and Unbalanced Master Outputs

• Record outputs

1. All operating instructions should be read before using this equipment.

2. Treat this unit as you would any other piece of electrical equipment and use good common sense!

3. 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 service technician.

Okay, let’s hook everything up!

1. Make sure that the position. This unit comes supplied with a 15 volt AC adaptor. Plug the adaptor into the rear panel power jack. Then plug the adaptor into your power strip or outlet.

2. The EX-26 mixer is supplied with 3 sets of output jacks. The

BALANCED MASTER OUTPUT

connect to your main amplifier using standard cables with 1/4” connectors. We recommend using the balanced amp outputs if the cables to your amp are 25 feet or more.

POWER

switch is in the “OFF”

(1)

jacks are used to

(2)

BALANCED MASTER OUTPUTS have three separate conductors, two of which are signal (positive and negative) and one shield (ground). The balanced line uses a tip-ringsleeve connection. Tip = hot or positive (+), ring = cold or negative (-), and sleeve = shield/ground.

The

MASTER OUTPUT

also used to connect to your main amplifier. The

jacks can be used to connect the mixer to the

OUTPUT

record input of your recorder enabling you to record your mix.

(4)

jacks are unbalanced and are

(3)

REC

(

3. On the rear panel are 2 stereo 2 stereo only turntables with a magnetic cartridge.

SCREWS (9)

on the rear panel. The stereo line inputs will accept any line level input such as a CD player, cassette player, etc.

4. Headphones can be plugged into the front panel mounted

1. POWER ON: Once you have made all the equipment connections to your mixer, press the

2. CHANNEL 1: The

LOW

EQ of the sound source. The Channel 1

SWITCH

Channel 1 slide fader.

17)

3. CHANNEL 2: The

LOW

EQ of the sound source. The Channel 2

SWITCH

Channel 2 slide fader.

18 )

4. EQ CONTROLS: There is Low, Mid and High equalization for each channel with an extremely wide range of adjustment.

5. INPUT ASSIGN SWITCHES: You can adjust the position of the right, up and down, or at a 45 degree angle. Make these adjustments with the power

1) Remove the channel slide knobs, crossfader knobs and the 4 screws from the sides of the lower faceplate. Then remove the lower faceplate.

2) Remove the 2 screws in the corners of the assign switch plate. Rotate the switch plate to the desired position, and replace the screws and tighten down.

3) To position the switch at a 45-degree angle, you need to reposition the switch on the assign switch plate. First, remove the 2 screws in the corners of the assign switch plate. Then, lift the switch plate up and remove the 2 smaller screws next to the switch. Rotate the switch plate to the right until the 45-degree holes align with the switch holes, replace the screws and tighten down. Replace the switch plate and tighten down.

PHONO

for you to ground your turntables are located

PHONES (10)

controls allow you to fully adjust the volume and

(14)

allows you to reverse the direction of the

(15)

controls the input level of this channel.

controls allow you to fully adjust the volume and

(14)

allows you to reverse the direction of the

(16)

controls the input level of this channel.

INPUT ASSIGN SWITCHES

inputs. The phono inputs will accept

(7,8)

jack.

GAIN

The Channel 1

(17)

GAIN

(18 )

LINE

POWER (1)

(11),

HIGH

(11),

HIGH

The Channel 2

(21, 22)

inputs and

(5,6)

GROUND

(12),

MID

REVERSE

SLIDE FADER

(12),

MID

REVERSE

SLIDE FADER

to move left to

OFF

NOTE: Keep track of where you position the input assign switches.

switch.

(13),

and

6. CHANNEL SLIDE CURVE SWITCHES: Use the 3 position adjust the kind of curve the channel slides have. Move the selected channel slide curve switch to the 6 (top) position to make the increase in level gradual and even. Move th e channel slide curve switch to the 20 (center) position to make the increase in level less gradual as you move channel slide up. Move the channel slide curve switch to the 30 (bottom) position to make the increase in level even less gradual, especially at the top of the slide.

7. CROSSFADER SECTION: The allows the mixing of one source into another. The left side of the side is CHANNEL 2. The

CONTROL (26)

crossfader has. Move the

CONTROL (26)

cutting (perfect for scratching). Move the

CURVE CONTROL(26)

gradual and gentle. The

BUTTON (27)

CHANNEL 2 is controlled by the left side of the crossfader and CHANNEL 1 is controlled by the right side of the crossfader. When REVERSE is activated the

LED (28)

CHANNEL SLIDE CURVE SWITCHES (23,24)

CROSSFADER (25)

allows you to adjust the kind of curve the to the right to make the curve steep and

allows you to reverse the crossfader so that

will light.

is CHANNEL 1 and the right

CROSSFADER CURVE

CROSSFADER

to the left to make the curve

CROSSFADER REVERSE

REVERSE

NOTE: When the CROSSFADER REVERSE BUTTON is activated (depressed), only the crossfader reverses. The Channel Slides, Gain,

reverse.

8. OUTPUT CONTROL SECTION: The level of the

MASTER OUTPUT (2, 3) CONTROL (20).

controls the balance between the output of the left and right channels.

The

and EQ controls do not

is controlled by the

BALANCE CONTROL KNOB (19)

MASTER

NOTE: The RECORD OUT (4) has no level control. The level is set by the channel slides and the gain controls of the selected channel. The EQ of the channels is set by the low, mid and high controls of that same channel.

9. CUE SECTION: By connecting a set of headphones to the

PHONES JACK

coming out of each channel separately or both channels together. Move the CHANNEL 1 and to the right to hear CHANNEL 2. Move the

CUE FADER (29)

channels together. The instantly mute your cue mix.

10. DISPLAY: The red LED in the center of the display tells you that the power in your EX-26 Mixer is on. The multi-colored

center tells you the output level of your 2 channels Okay, that’s it! NOW you’re ready to grab a couple of great

CD’s or records, crank it up and get the party started!

, you can monitor the music

(10)

CUE FADER (29)

to the center to listen to both

PHONES MUTE BUTTON

LED DISPLAY

to the left to hear

on either side of the

(31)

(30)

will

Page 2

INPUTS:

Phono.....................@ 1mHz.................……....2mV 47kΩ

Line.........................................….....……......100mV 20kΩ

OUTPUTS:

Master (balanced..................…………..…0 dB 2 V 800 Ω

Max.......................………………….....40 V Peak to Peak

Master (unbalanced).....................…..........0 dB 1V 400Ω

Max..........................………………… ...20V Pe ak to Peak

Rec.........................……………........…….......150mV 5kΩ

SPECIFICATIONS

GENERAL:

Low.........................……………................+ 12dB/- 32 dB

Mid..........................……………................+ 12dB/- 32 dB

High..........................………………...........+ 12dB/- 32 dB

Gain............................………………….. …......0 to -20dB

Frequency Response..………........20Hz – 20kHz +/- 2dB

Distortion.............................…………...…less than 0.08%

S/N Ratio................……………….…......better than 80dB

Power Adapter....................……........115 V/15 V AC 0.5 A

230V/15V AC 0.5A

Dimensions.....6.5”W x 14.25”H x 3.00”D

Page 3

+ 9 hidden pages