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CARVIN CX1252 Operation Manual
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CARVIN CX1252 Operation Manual

Cx stereo mixers
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HELPLINE
1-800-854-2235
12340 World Trade Drive
San Diego, CA 92128
Record the serial number of your CX Mixer in the space provided below:
Serial No._________________ Invoice Date________________
USA
CX STEREO MIXERS
CX842 and CX1252
1
2
3
4
5
6
7
8
+12
HI
0
HI
0
HI
0
HI
0
HI
0
HI
0
HI
0
HI
0
HI
3
8
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
4
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
0
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
MID
MID
MID
MID
MID
MID
MID
MID
MID
0
4
0
0
0
0
0
0
0
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
6
8
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
–12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
LOW
LOW
LOW
LOW
LOW
LOW
LOW
0
0
0
0
0
0
0
0
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
3
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
6
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
9
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
EFF /
+12
EFF /
EFF /
EFF /
EFF /
EFF /
EFF /
EFF /
EFF /
5
5
5
5
5
5
5
5
REV
4
6
REV
4
6
REV
4
6
REV
4
6
REV
4
6
REV
4
6
REV
4
6
REV
4
6
REV
4
3
8
7
3
7
3
7
3
7
3
7
3
7
3
7
3
7
3
2
8
2
8
2
8
2
8
2
8
2
8
2
8
2
8
2
4
1
9
1
9
1
9
1
9
1
9
1
9
1
9
1
9
1
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
0
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
PAN
0
0
0
0
0
0
0
0
4
8
–12
L
R
L
R
L
R
L
R
L
R
L
R
L
R
L
R
L
MON
4
5
6
MON
4
5
6
MON
4
5
6
MON
4
5
6
MON
4
5
6
MON
4
5
6
MON
4
5
6
MON
4
5
6
MON
4
3
7
3
7
3
7
3
7
3
7
3
7
3
7
3
7
3
2
8
2
8
2
8
2
8
2
8
2
8
2
8
2
8
2
1
9
1
9
1
9
1
9
1
9
1
9
1
9
1
9
1
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
4
5
6
4
5
6
4
5
6
4
5
6
4
5
6
4
5
6
4
5
6
4
5
6
4
3
7
3
7
3
7
3
7
3
7
3
7
3
7
3
7
3
2
8
2
8
2
8
2
8
2
8
2
8
2
8
2
8
2
1
9
1
9
1
9
1
9
1
9
1
9
1
9
1
9
1
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
10
0
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
LEVEL
1
2
3
4
5
6
7
8
MIC
MIC
MIC
MIC
MIC
MIC
MIC
MIC
MIC
LINE
LINE
LINE
LINE
LINE
LINE
LINE
LINE
LINE
OPERATION MANUAL
Manual No. 76-01252
Revision 1.1
Made in USA
1-800-854-2235
L GRAPHIC EQ
9
10
11
12
0
HI
0
HI
0
HI
0
3
3
3
3
3
3
3
6
6
6
6
6
6
6
9
9
9
9
9
9
9
12
12
12
12
12
12
12
MID
MID
MID
0
0
0
0
3
3
3
3
3
3
3
6
6
6
6
6
6
6
9
9
9
9
9
9
9
12
12
12
12
12
12
12
63
125
250
500
1K
2K
4K
LOW
LOW
0
0
0
0
3
3
3
3
3
3
3
6
6
6
6
6
6
6
9
9
9
9
9
9
9
R GRAPHIC EQ
12
12
12
12
12
12
12
EFF /
EFF /
EFF /
5
5
5
5
6
REV
4
6
REV
4
6
REV
4
6
7
3
7
3
7
3
7
8
2
8
2
8
2
8
9
1
9
1
9
1
9
10
0
10
0
10
0
10
PAN
PAN
PAN
0
0
0
0
R
L
R
L
R
L
R
63
125
250
500
1K
2K
4K
MON
5
6
MON
4
5
6
MON
4
5
6
4
5
6
7
3
7
3
7
3
7
8
2
8
2
8
2
8
9
1
9
1
9
1
9
L/R MAIN
10
0
10
0
10
0
10
5
4
6
5
6
4
5
6
4
5
6
4
5
6
STEREO DSP
3
7
7
3
7
3
7
3
7
2
8
8
2
8
2
8
2
8
1
9
POWER
PHANTOM
9
1
9
1
9
1
9
BYPASS 1
0
10
10
0
10
0
10
0
10
DELAYS 2-30
5
5
127 EFFECTS
REVERB 31-90
LEVEL
LEVEL
LEVEL
4
6
4
6
CHORUS
9
10
11
12
3
7
3
7
FLANGE 111-128
2
8
2
8
1
9
1
9
L
R
0
10
0
10
MONITOR
DSP EFF RTN
L
5
5
TAPE
4
6
4
6
SEND
3
7
3
7
2
8
2
8
1
9
1
9
TAPE
0
10
0
10
RTN
EFF SEND
TAPE / EFF RTN
L
R
MIC
MIC
MIC
SEND
L
RETURN
R
L
AMP
PROTECT
LINE
LINE
LINE
EFFECTS
MONITOR
8K
16K
8K
16K
91-110
R
AMP
PATCH
R
LINE OUT

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Summary of Contents for CARVIN CX1252

  • Page 1 CX STEREO MIXERS CX842 and CX1252 HELPLINE 1-800-854-2235 L GRAPHIC EQ –12 R GRAPHIC EQ EFF / EFF / EFF / EFF / EFF / EFF / EFF / EFF / EFF / EFF / EFF / EFF / –12 L/R MAIN STEREO DSP POWER...

  • Page 2: Receiving Inspection

    CX1252R 0.125A, 250V, Slow Blow 70-21001 3AG, 1/4 x 1 1/2” (6.35 x 32mm) May you enjoy many years of success and fun with your new CARVIN mixer! CX842 3A, 250V, Slow Blow 70-22030 3AG, 1/4 x 1 1/2” (6.35 x 32mm)

  • Page 3: Maintenance

    RISK OF ELECTRIC SHOCK QUALIFIED SERVICE PERSONNEL! mixer unplugged and the unit turned off, complete the following procedures: Ref Des Description CARVIN No. Capacitor Poly .033µF 100 Volt 10% 46-33312 1. CONNECTING AC POWER TO YOUR MIXER Capacitor Poly .001µF 100 Volt 10%...

  • Page 4: Speaker Connections

    SPEAKER CONNECTIONS 6. CHANNEL PAN CONTROL The PAN control adjusts where the channel is heard in the stereo field of the stereo main outputs. If it is turned Here are two possible speaker connections, two or four 8 ohm speakers with to the extreme left, then the channel will only be heard in one or one pair to each 1/4”...
  • Page 5 4. TAPE/EFFECTS RETURN LEVEL CONTROL The TAPE/ EFF RTN control is a stereo effects or tape return volume control. It can receive input from both the L/R TAPE RTN RCA jacks and the L/R 1/4” EFFECTS RETURN jacks. This volume controls the return level being fed back into the master L/R stereo mix.
  • Page 6 “Direct box” (both are available from Carvin or other electronics outlets). Verify that all the connec- tions are good and that all mics are connected properly. The next step is con- SELECTING AN EFFECTS PROGRAM (EFFECT) necting the speakers outputs.
  • Page 7 GREEN OR CONSEQUENTIAL DAMAGES. In the interest of creating new products and improving existing ones, Carvin is continually researching the latest state of the WARNING: If the ground is defeated, certain fault conditions in the unit or in the sys- art audio design methods, and modern packaging and production techniques.

  • Page 8: Table Of Contents

    TAPE DECKS AND EXTERNAL EFFECTS ..........15 BLOCK DIAGRAM................16 CX MIXER PARTS LIST ...............17,18 CX MIXER TECHNICAL SPECIFICATIONS..........19 FUSE SELECTION................19 WARRANTY INFORMATION ............20 DESCRIPTION CARVIN # Switch Cap Grey Extended 07-01603 Knob 11 D shaft (COLOR) 07-120-- Color Knob Code Front Panel PCB (12 Chan)

  • Page 9: Channel Features

    CHANNEL FEATURES 1. LINE INPUT JACK The LINE input is a 1/4” phone jack designed for unbalanced line and instrument level inputs. Examples of these inputs would be instruments such as a guitar, a keyboard, an unbalanced mic, or a pre-amp output. The line input can be used at the same time the mic input is being used.

  • Page 10: Master Section Features

    MASTER SECTION FEATURES L GRAPHIC EQ –12 R GRAPHIC EQ –12 L/R MAIN STEREO DSP POWER PHANTOM BYPASS DELAYS 2 - 30 127 EFFECTS REVERB 31 - 90 CHORUS 91 - 110 FLANGE 111 - 128 MONITOR DSP EFF RTN TAPE SEND TAPE...
  • Page 11 lem has been corrected start again with turning up the low level signal and use The RCA jacks are Ideal for using a cassette deck to record a mix with using the this low level signal to check if all the speakers are working. Now the main sys- TAPE SEND jacks and playing it back through the TAPE RETURN jacks with out tem is ready for the sound check.

  • Page 12: Internal Dsp Effects Programs Chart

    REVERB Small Room 3.9s decay 113 FLANGE Fast & 6mS depth cable or more commonly referred to as a “Snake” (available from CARVIN). REVERB Medium Room 0.5s decay 114 FLANGE Slow & 13mS depth Each of the microphones and instruments are plugged into the snake box at the REVERB Medium Room 0.7s decay...

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Cx842
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