Carvin CX630, CX420 Owner's Manual

CX MONO MIXERS

CX420 and CX630

OPERATION MANUAL

Manual No. 76-00630

Revision 1.1

Made in USA

1-800-854-2235

CX630

MON

LEVEL

MIC

0 10

EFF REV

LINE

MID

LOW

9 9

0 10

9 9

MON

LEVEL

MIC

0 10

EFF REV

LINE

MID

LOW

9 9

0 10

9 9

MON

LEVEL

MIC

3 2 1

0 10

EFF REV

LINE

MID

LOW

9 9

4 3 2 1

0 10

4 3 2 1

0 10

3 6

9 9

3 6

9 9

MON

LEVEL

MIC

0 10

EFF REV

LINE

MID

LOW

9 9

0 10

9 9

MON

LEVEL

MIC

0 10

EFF REV

LINE

MID

LOW

9 9

0 10

9 9

MON

LEVEL

MIC

0 10

EFF REV

LINE

MID

LOW

9 9

0 10

9 9

GRAPHIC EQ

8 4

4 8

–12

+12

125 250 50063 1K 2K 4K 8K 16K

MAIN

PHANTOM

MONITOR REVERB

EFF SEND TAPE EFF RTN

TAPE RETURN

TAPE SEND

SEND MONITOR MAINAMP PATCH

EFFECTS

RETURN

POWER

2 8

0 10

1 9

0 10

4 3 2 1

0 10

4 3

2 1109

HELPLINE

1-800-854-2235

8:30 To 4:30 Monday-Friday

Pacific Standard Time

USA

Record the serial number of your CX Mixer in the space provided below:

Serial No._________________ Invoice Date________________

12340 World Trade Drive

San Diego, CA 92128

619-487-1600

19 i

Call Toll-Free 800-854-2235 if you need help with your CARVIN product. If you need to return it for service, our service department. will issue a Service Number so that we can expect your shipment. Write the Service Number on the carton and be sure to include a full description of every problem. Pack in its original carton using all its packing material. Return by UPS prepaid. Units returned with physical damage, missing parts, or damage from improper service are not serviceable.

REPAIRS UNDER WARRANTY (1Year)

There is no charge for service under warranty. However, shipping is to be paid both ways by the customer.

REPAIRS OUT OF WARRANTY

If your warranty has expired, call us for the current flat rate service charge which includes parts, labor and testing to bring your unit up to factory specifications.

SERVICING IN YOUR AREA

You may select your own service center or have your own qualified technician work on the unit at your own expense. This will not void the warranty unless damage was done because of improper servicing. Under the ONE YEAR WARRANTY, Carvin will ship parts pre-paid to you or your technician provided the defective part(s) are first returned for our inspection. If you do not have a qualified service person, we ask that you do not involve yourself in servicing the unit.

EXTENDED WARRANTY

An extended warranty is available beyond the normal one year period. Please call 1-800-8542235 for more information.

LIMITED WARRANTY

Your Carvin Professional Series Product is guaranteed against failure for ONE YEAR. Carvin will service the unit and supply all parts at no charge to the customer provided the unit is under warranty. CARVIN DOES NOT PAY FOR PARTS OR SERVICING OTHER THAN OUR OWN. This warranty is extended to the original purchaser only and is not transferable. THIS WARRANTY DOES NOT INCLUDE FAILURES CAUSED BY INCORRECT USE, INADEQUATE CARE OF THE UNIT, OR NATURAL DISASTERS. A COPY OF THE ORIGINAL INVOICE IS REQUIRED TO VERIFY YOUR WARRANTY. Carvin takes no responsibility for any horn driver or speaker damaged by this unit. This warranty is in lieu of all other warranties, expressed or implied. No representative or person is authorized to represent or assume for Carvin any liability in connection with the sale or servicing of Carvin products. No liability is assumed for damage due to accident, abuse, lack of reasonable care, loss of parts, or failure to follow Carvin’s directions. CARVIN SHALL NOT BE LIABLE FOR INCIDENTAL OR CONSEQUENTIAL DAMAGES.

In the interest of creating new products and improving existing ones, Carvin is continually researching the latest state of the art audio design methods, and modern packaging and production techniques. Thus, Carvin reserves the right to make changes in its products and specifications without notice or obligation.

1-800-854-2235

(619) 487-1600 M-F 8 to 4:30

INSPECT YOUR CX MIXER FOR ANY DAMAGE which may have occurred during shipping. If any damage is found, notify the shipping company and call CARVIN immediately.

SAVE THE CARTON & ALL PACKING MATERIALS. In the event you have to reship your mixer, always use the original carton and packing material. This will provide the best possible protection for the mixer during shipment. CARVIN and the shipping company are not liable for any damage caused by improper packing.

SAVE YOUR INVOICE. It will be required for warranty servicing of your unit.

Always check the invoice against the items you have received.

SHIPMENT SHORTAGE. If you find some items missing, it may be that they were shipped separately. Please allow several days for the rest of your order to arrive before inquiring. If you determine (after allowing an appropriate amount of time) you have not received all the items you ordered, please call CARVIN.

RECEIVING INSPECTION

FOR THE NEW OWNER

WARRANTY AND SERVICE INFORMATION

Congratulations on your selection of CARVIN products: “The Professional’s Choice.” Your new CX series mixer demonstrates CARVIN’s commitment to producing the highest quality and most sophisticated engineering in the audio industry today. Its wide acceptance and use by industry professionals illustrates the basis for CARVIN’s recognition as “The Professional’s Choice.”

The CX series mixers were designed with the desire to pack as many high performance features into the smallest package we could, without sacrificing the quality of any one of the features or the mixer. The CX630 features a full function 6 channel mixer, a nine band graphic equalizer and a 200 Watt power amplifier (100 Watts per speaker output into 8 ohms). The CX420 is a 4 channel version of the CX630 with a 150 Watt power amplifier (75 Watts per speaker output into 8 ohms). Each CX series mixer is the size of a 5 space rackmount unit, surrounded by a 3/4” poplar plywood cabinet covered with Duratuff™ carpeting, making the CX mixer road worthy and ready for a show anywhere.

If you would like to comment on any features or the performance of your new mixer, please feel free to contact us. Comments from our customers have helped us to improve and further develop our products and our business.

May you enjoy many years of success and fun with your new CARVIN mixer! Carvin’s toll free number: 800-854-2235

17 2

R16 Resistor, 10K, 1/4W, ±5% 50-10045 R17 Resistor, 10K, 1/4W, ±5% 50-10045 R18 Resistor, 4.70K, 1/4W, ±5% 50-47035 R19 Resistor, 4.70K, 1/4W, ±5% 50-47035 R20 Resistor, 22Ω, 1/2W, ±5% 52-22015 R21 Resistor, 22Ω, 1/2W, ±5% 52-22015 R30 Resistor, 47K, 1/4W, ±5% 50-47045 R31 Resistor, 2.2K, 1/4W, ±5% 50-22035 R32 Resistor, 33K, 1/4W, ±5% 50-33045 R33 Resistor, 27K, 1/4W, ±5% 50-27045 R34 Resistor, 33K, 1/4W, ±5% 50-33045 R35 Resistor, 10K, 1/4W, ±5% 50-10045 R36 Resistor, 10K, 1/4W, ±5% 50-10045 R37 Resistor, 10K, 1/4W, ±5% 50-10045 R38 Resistor, 10K, 1/4W, ±5% 50-10045 R39 Jumper, 0Ω, Carbon, 0 50-00035 R40 Jumper, 0Ω, Carbon, 0 50-00035 R41 Resistor, 150K, 1/4W, ±5% 50-15055 R42 Resistor, 470Ω, 1/4W, ±5% 50-47025 R43 Resistor, 470Ω, 1/4W, ±5% 50-47025 R44 Resistor, 150K, 1/4W, ±5% 50-15055 R45 Resistor, 470Ω, 1/4W, ±5% 50-47025 R46 Resistor, 33K, 1/4W, ±5% 50-33045 R47 N/U R48 Jumper, 0Ω, Carbon, 0 50-00035 R49 Resistor, 150K, 1/4W, ±5% 50-15055 R50 Resistor, 470Ω, 1/4W, ±5% 50-47025 R51 Resistor, 4.70K, 1/4W, ±5% 50-47035 R52 Resistor, 47K, 1/4W, ±5% 50-47045 R53 Resistor, 100Ω, 1/4W, ±5% 50-10025 R54 Resistor, 150K, 1/4W, ±5% 50-15055 R55 Resistor, 10K, 1/4W, ±5% 50-10045 R60 Resistor, 2.4K, 1/4W, ±5% 50-24035 R61 Resistor, 150K, 1/4W, ±5% 50-15055 R62 Resistor, 2.2K, 1/4W, ±5% 50-22035 R63 Resistor, 220K, 1/4W, ±5% 50-22055 R64 Resistor, 2.2K, 1/4W, ±5% 50-22035 R65 Resistor, 300K, 1/4W, ±5% 50-30055 R66 Resistor, 2.4K, 1/4W, ±5% 50-24035

R67 Resistor, 180K, 1/4W, ±5% 50-18055 R68 Resistor, 2.2K, 1/4W, ±5% 50-22035 R69 Resistor, 360K, 1/4W, ±5% 50-36055 R70 Resistor, 2.0K, 1/4W, ±5% 50-20035 R71 Resistor, 130K, 1/4W, ±5% 50-13055 R72 Resistor, 2.2K, 1/4W, ±5% 50-22035 R73 Resistor, 110K, 1/4W, ±5% 50-11055 R74 Resistor, 2.2K, 1/4W, ±5% 50-22035 R75 Resistor, 110K, 1/4W, ±5% 50-11055 R76 Resistor, 1.8K, 1/4W, ±5% 50-18035 R77 Resistor, 91K, 1/4W, ±5% 50-91045 R78 Resistor, 10K, 1/4W, ±5% 50-10045 R79 Resistor, 150K, 1/4W, ±5% 50-15055 R80 Resistor, 470Ω, 1/4W, ±5% 50-47025 R81 Resistor, 4.70K, 1/4W, ±5% 50-47035 R82 Resistor, 1K, 1/4W, ±5% 50-10035 R83 Resistor, 4.70K, 1/4W, ±5% 50-47035 R90 Resistor, 350Ω, 10W, ±10% 56-35010 R91 Resistor, 350Ω, 10W, ±10% 56-35010 R92 Jumper, 0Ω, Carbon, 0 50-00035 R93 Jumper, 0Ω, Carbon, 0 50-00035 R94 Jumper, 0Ω, Carbon, 0 50-00035 R95 Resistor, 680Ω, 1/4W, ±5% 50-68025 R96 Resistor, 15K, 1/4W, ±5% 50-15045 R97 Resistor, 22K, 1/4W, ±5% 50-22045 R98 Resistor, 22K, 1/4W, ±5% 50-22045 R99 Resistor, 10K, 1/4W, ±5% 50-10045 R100 Resistor, 33K, 1/4W, ±5% 50-33045 R101 Resistor, 680Ω, 1/4W, ±5% 50-68025 R102 Resistor, 15K, 1/4W, ±5% 50-15045 R103 Resistor, 22K, 1/4W, ±5% 50-22045

S1 Switch DPDT Push PC Mtg 25-02201 S4 Switch DPDT Push PC Mtg 25-02201

U1 100V/100W DMOS Audio Amp 60-72940 U2 100V/100W DMOS Audio Amp 60-72940

All “B” Reference Designators are 0 ohm jumpers.

If you’re like most new owners, you’re probably in a hurry to plug your CX mixer in and use it. Here are some brief instructions to get you going quickly. With the mixer unplugged and turned off complete the following procedures:

1. CONNECTING AC POWER TO YOUR MIXER

• Check the rear panel to make sure the mixer received uses the proper AC Line Voltage. (USA 120VAC, Europe 240 VAC ...etc.)

• Use only a grounded (3 prong) power outlet to prevent a shock hazard. This gives the quietest grounding for your mixer.

2. CONNECTING SPEAKERS

• For connecting speakers, use the two 1/4” speaker jacks on the rear panel. These jacks are controlled by the main level control on the front panel. The speaker cables should be non-shielded and at least 18 gauge(AWG) wire. For speaker cable runs of over 20 feet 16 gauge wire is recommended.

NOTE: Do not run your speakers through microphone cables, guitar cables, or multi-conductor microphone junction boxes or “snakes” as they are sometimes referred to. This wire is normally shielded and of a very light gauge causing a substantial loss of power and oscillations at high frequencies in the amplifier. All speaker wires must be non-shielded

3. CONNECTING INPUTS TO YOUR MIXER

• For low level balanced devices such as microphones, plug into the balanced MIC inputs using an XLR shielded microphone cable.

• For high level unbalanced devices such as Tape Recorders and Keyboards plug into the LINE input jacks using a 1/4” phone shielded cable.

4. TURNING YOUR MIXER ON

• Adjust all channel and master level controls to the off

position

(fully counter clockwise).

• Adjust all “EQ” tone controls, the channel’s Hi, Mid, and Lo and the master 9 Band Graphic EQ, to their center

detent position.

• Turn the mixer on by the rear panel power switch and watch for the power LED to come on.

Your mixer is now ready to operate.

QUICK START UP

# DESCRIPTION CARVIN # QTY

Switch Cap Grey Extended 07-01603 7 Knob 11 D shaft (COLOR) 07-120-- ---

Front Panel PCB (6 Chan) 80-0630-1 1

POWER TRANSFORMER 15-15070B 1 Accutronics™ REVERB TANK 70-00821

SPEAKER JACK PCB 80-0630-3

POWER AMP PCB 80-0630-2 1

Yellow Green Drk Grey

20 25 28

Color Knob Code

MAINTENANCE

To bring back the new look, your CX mixer can be washed with mild detergent and/ or a warm damp soft cloth. This will remove normal dust and oil from the front and back panels. Never spray cleaners or detergents directly at the unit. The mixer’s are virtually sealed from outside dust and dirt, but it is recommended to keep the mixer free from dust, dirt, and moisture as much as possible.

THREE BAND

CHANNEL TONE

CONTROLS

PAD

-20dB PAD SWITCH

HI MID LOW

MIC

PRE

CHANNEL

LEVEL

CHANNEL

EFF SND

CHANNEL

MONITOR

LEVEL

MAIN

MON

EFF

EFFECTS

SUMMING AMP

EFFECTS

SEND LEVEL

MAIN LEFT

SUMMING AMP

AND LEVEL

EFFECTS SEND

GAIN STAGE

MAIN

LINE OUT

NINE BAND

GRAPHIC

EQUILIZER

EFFECTS

SEND

TO INTERNAL

REVERB TANK

MONITOR

SUMMING AMP

MONITOR

LINE OUT

LEFT

AMP PATCH

EFF INPUT

TAPE RTN

RETURN

FOR INTERNAL

REVERB TANK

LEFT

TAPE OUT

TO INTERNAL

POWER AMP

REV. TO

MONITOR

1155 Industrial Ave.

Escondido, CA 92029

619-747-1710

FAX 747-9065

CX 630 & CX420

BLOCK DIAGRAM

PtN

CHANNEL

line pad

(-26dB)

15 4

6. CHANNEL EFFECTS/REVERB LEVEL CONTROL

The EFF/REV level control adjusts the volume of the channel going to the effects send master control, and the internal reverb tank. The effects control is post channel level. This means adjustments in the channel’s EQ or level controls will be affecting the effects send of that channel.

7-9. CHANNEL TONE CONTROLS

Each channel features three tone controls LO, MID, and HI. The LO and HI controls are shelving type tone controls with corner frequencies at 100Hz and 10KHz respectively. The shelving means, the for the LO control, all frequencies from 100Hz down to the lowest frequency the mixer can handle are all boosted when the knob is turned clockwise and cut when turned counter-clockwise from the center position. For the HI control the shelving means all the frequencies from 10kHz and up to the upper limit of the mixer are all boosted when the knob is turned clockwise and cut when turned counterclockwise from the center position. The MID control is a band pass type of tone control with the center frequency set at 1.5KHz. The band pass means a middle section of frequences centered around 1.5kHz, but not over lapping the HI and LO controls, is boosted when the knob is turned clockwise and cut when turned counter-clockwise from the center position.

Familarity with the channel tone controls:

The three tone controls can add brightness, clairity, and control to the channel’s input signal. Here are some tonal references for these tone controls.

• LO affects the deep low bass tones and the typical bass tones.

• MID affects all the middle frequencies where the clairty of an average persons spoken voice is mostly heard. Also the MID incompases the louder sometimes harsher tones that can distort the over all sound of the system.

• HI affects the treble tones and very high treble tones bringing brightness and brillance to the channel’s input.

Adjusting:

Use these controls to change the tonal shape of the input signal and in many cases to reduce possible feedback from microphones near the mixer’s output speakers. It is suggested the channel tone controls start out in their center detent position where they do not effect the original incoming signal. Then, if needed, turn the tone controls (boost,turn to the right, or cut, turn to the left) to change the sound.

EFF REV

MID

LOW

9 9

0 10

9 9

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