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- 3 -

CM-680

 I

NSTRUCTION 

M

ANUAL

 Ultra    Stereo Labs, Inc.

- 12 -

CM-680

 I

NSTRUCTION 

M

ANUAL

 Ultra    Stereo Labs, Inc.

Introduction

Please  read  this  entire  manual  before  commencing  your

installation.

The  Ultra 

 

Stereo  CM-680  Projection  Booth  Monitor  has  been

designed for high performance, ease of use, and years of trouble free

service.  Installation  and  setup  of  the  monitors  has  been

considerably  simplified.  No  special  tools  are  required.  The  built  in

VU  meter  and  test  jack  give  the  technician  immediate  information

about  the  status  of  the  processor  and  all  power  amplifiers.

All  controls  necessary  for  daily  operation  of  the  processor  are

easily  accessible  on  the  front  panel.  The  components  that  make

up  the  CM-680  monitors  are  of  computer  grade  for  reliability.  All

front  panel  controls  are  individually  sealed  for  long  life.  All

Ultra 

 

Stereo  equipment  has  been  “burned-in”  at  the  factory  for

an  extended  period  in  order  to  eliminate  the  possibility  of

premature  failure.  Unpack  the  unit  carefully.  If  the  container  has

been  damaged,  thoroughly  inspect  the  equipment  to  make

certain  that  there  is  no  hidden  damage.  File  a  claim  immediately

with  the  carrier  if  any  damage  is  found.  Also  advise  your  dealer

or the factory.

Small, standard

screwdriver

No. 2 Phillips

screwdriver

Trimpot

adjustment

tool

Wire

Strippers

TOOLS REQUIRED

All

Switches

“On”:

330 Hz

All

Switches

“On”:

500 Hz

All

Switches

“On”:

800 Hz

TIME DELAY

All

Switches

“On”:

1.4ms

All

Switches

“On”:

1.8ms

All

Switches

“Off”:

297 Hz

All

Switches

“Off”:

0.7ms

Llo Lhi Clo Chi Rlo Rhi

HORN EQ 1-3 ON

SCREEN EQ

4-6 ON

330hz

330hz

330hz

500hz

500hz

500hz

800hz

800hz

800hz

1.4ms

1.8ms

1.4ms

1.8ms

1.4ms

1.8ms

LEFT

CENTER

RIGHT

Normal/Bypass Switch and LEDs

Crossover

Output

Levels

LEFT

CENTER

RIGHT

Bypass

Xover

Levels

Screen EQ

4-6 On/Off

Horn EQ

1-3 On/Off

CROSSOVER

FREQUENCY

Figure 6

Summary of Contents for CM-680

Page 1: ...esigned to facilitate the exchange of information related to cinema projection and film handling with no warranties nor obligations from the authors for qualified field service engineers If you are no...

Page 2: ...dicator illuminates when the corresponding channel is selected A volume control sets the speaker output level and works independently of the front panel VU bargraph meter A push button switch with cor...

Page 3: ...ied Such warranty shall not apply to any product or component A repaired or altered by anyone other than USL Inc or an authorized service contractor B tampered with or altered in any way or subjected...

Page 4: ...0Hz 0 7ms JBL 5671 330Hz 1 4ms JBL 5672 297Hz 1 8ms JBL 5674 297Hz 1 8ms EV TS940 800Hz 0 7ms EV TS992LX 500HZ 1 8ms EV 9040 500Hz 1 8ms EV Variplex 330Hz 1 4ms EAW CB2591 500Hz 1 8ms EAW CB259 800Hz...

Page 5: ...ng life All Ultra Stereo equipment has been burned in at the factory for an extended period in order to eliminate the possibility of premature failure Unpack the unit carefully If the container has be...

Page 6: ...1 8 ms Refer to figure 7 Likewise a loudspeaker requiring 1 4 ms delay should require all the DIP switches in the second row to be turned ON For loudspeakers requiring only 0 7 ms delay leave all the...

Page 7: ...erting a mono or stereo 1 4 phone plug here disables the internal speaker and routes the audio output to the Test Jack Do not connect any device here with less than 8 Ohms impedance 8 Internal Speaker...

Page 8: ...Bsr CM 680 MONITOR CROSSOVER WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS A P P L I A N C E TO R A I N O R MOISTURE DO NOT REMOVE COVER NO USER SERVICE ABLE PARTS INSIDE REF...

Page 9: ...ts are balanced Please use two conductor shielded cable to minimize ground loops and hum Connect each of the crossover channel outputs to the appropriate amplifier inputs 4 Monitor Inputs From Power A...

Page 10: ...ts are balanced Please use two conductor shielded cable to minimize ground loops and hum Connect each of the crossover channel outputs to the appropriate amplifier inputs 4 Monitor Inputs From Power A...

Page 11: ...Bsr CM 680 MONITOR CROSSOVER WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK DO NOT EXPOSE THIS A P P L I A N C E TO R A I N O R MOISTURE DO NOT REMOVE COVER NO USER SERVICE ABLE PARTS INSIDE REF...

Page 12: ...playing back at the normal listening level Select some source material like pink noise Set the Processor Amplifier switch to Processor With the monitor volume to 7 adjust the Processor trimpot for a c...

Page 13: ...1 8 ms Refer to figure 7 Likewise a loudspeaker requiring 1 4 ms delay should require all the DIP switches in the second row to be turned ON For loudspeakers requiring only 0 7 ms delay leave all the...

Page 14: ...ng life All Ultra Stereo equipment has been burned in at the factory for an extended period in order to eliminate the possibility of premature failure Unpack the unit carefully If the container has be...

Page 15: ...0Hz 0 7ms JBL 5671 330Hz 1 4ms JBL 5672 297Hz 1 8ms JBL 5674 297Hz 1 8ms EV TS940 800Hz 0 7ms EV TS992LX 500HZ 1 8ms EV 9040 500Hz 1 8ms EV Variplex 330Hz 1 4ms EAW CB2591 500Hz 1 8ms EAW CB259 800Hz...

Page 16: ...ied Such warranty shall not apply to any product or component A repaired or altered by anyone other than USL Inc or an authorized service contractor B tampered with or altered in any way or subjected...

Page 17: ...dicator illuminates when the corresponding channel is selected A volume control sets the speaker output level and works independently of the front panel VU bargraph meter A push button switch with cor...

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