Operating Manual - GQX 3102, GQX 3101, and GQX 1502 Graphic Equalizer
8. | TROUBLESHOOTING TIPS | 8.5 | Excessive Hum or Noise |
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| 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 |
| 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 |
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| 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 |
9.DIMENSIONS
19.00
18.375
3.50
3.00
7.60
6.70
5.25
2.25
10