Ashly GQX-3101, GQX-3102, GQX-1502 manual Troubleshooting Tips, Dimensions

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Operating Manual - GQX 3102, GQX 3101, and GQX 1502 Graphic Equalizer

8.

TROUBLESHOOTING TIPS

8.5

Excessive Hum or Noise

 

 

 

Hum will usually be caused by a ground loop be-

8.1

No Audio Output

 

tween components. Try using the suggested bal-

 

Check AC power - is the pilot light on?

 

anced input and output hook-ups if the other

 

Check in/out connections - are they reversed?

 

pieces of equipment used in conjunction with your

 

Are you sure you have an input signal?

 

equalizer have balanced inputs and outputs.

8.2

EQ Controls Do Nothing

 

Noise (excessive hiss) can be caused by insuffi-

 

Is the master EQ switch in?

 

cient drive signal. Make sure you are sending a

 

The lowest and highest frequency sliders may be

 

nominal 0 dBu line level signal to the equalizer.

 

beyond the range of the program material or

 

Most noise problems occur because gain is ap-

 

speakers and may produce little or no audible ef-

 

plied to audio signals too late in the chain. For

 

fect.

 

best performance, apply gain to individual source

 

 

 

signals as early as possible, like at the mixer in-

8.3

Peak Light Flashes or Stays On All the Time

 

put section. As gain increases, it also boosts the

 

If the peak light flashes, the signal level to the

 

noise content of that signal. Any cumulative noise

 

equalizer is too high. Turn down the gain. If it is

 

built up in a mixed signal will only be increased

 

on all the time, disconnect the input and output

 

by using an equalizer as a gain device, so make

 

cables. If it is still on, the unit must be returned

 

every attempt to operate the equalizer with as little

 

for service.

 

gain as possible.

8.4

Distorted Sound

 

Note: Unshielded cables, improperly wired con-

 

This will only be caused by too much signal

 

nections, and cable with broken strands (shorts,

 

which will show on the Clip LED. If the LED is

 

etc.) are the most common problems. Make sure

 

not flashing, there is an overload somewhere else

 

you use good quality cable with connectors sol-

 

in the signal path. Adjust the relative gain of

 

dered firmly on the correct pin. When in doubt,

 

each component in your chain to keep everything

 

get in touch with your Ashly dealer, or call the

 

at a comfortable level.

 

Ashly service department at 800-828-6308.

9.DIMENSIONS

19.00

18.375

3.50

3.00

7.60

6.70

5.25

2.25

10

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Contents Operating Manual Table Of Contents Introduction UnpackingInputs Audio Connectors and CablesServo-Balanced Output AC Power GroundingControls Typical ApplicationsConsole Channel Equalization Feedback ControlLarge Room Equalization VAR Frequency Hz Troubleshooting Tips DimensionsSpecifications Schematics GQX 1502 Schematic Diagram GQX 3102, GQX 3101 Block Diagram GQX 3102, GQX 3101 Schematic Diagram GQX Rev