Ashly LX-308B Manual de instruções - Página 9

Procurar online ou descarregar pdf Manual de instruções para Misturador de música Ashly LX-308B. Ashly LX-308B 12 páginas. Stereo line/microphone mixer
Também para Ashly LX-308B: Manual de instruções (16 páginas), Notas técnicas e especificações (2 páginas), Manual de instruções (8 páginas)

Imprimir página

Operator Manual – LX-308B Mixer

Situation

No Sound

Distorted Sound

Excessive Noise

Excessive Hum or Noise

Note: Unshielded cables, improperly wired connections, and cable with broken strands are

the most common problems. Make sure you use good quality cable with connectors

soldered firmly on the correct pin. When in doubt, get in touch with your Ashly dealer.

In Inches

Action

Check the AC power. Is the power switch on and illuminated? Check the level meters. If they

are operating, either the problem is between the mixer and the later components in the

system, or else the Output Mute switches are pressed. If there is no meter activity, check to

see you really have an input signal and that it is on the desired channel, or check to see that

the meter select switch is set to Left/Right. Check that you have the master gain controls at

the desired operating level.

Something is being overdriven in the signal path. If the clip indicators are active, reduce the

channel level controls. If the clip indicators are still active, reduce the input signal level. If the

level meters are constantly in the red, reduce the Master gain and increase the gain of

components following the mixer. There are many gain adjustments in the mixer itself and

probably several others in other system components which makes it possible to overdrive an

input section and then incorrectly try to reduce the gain of the output section. The best way to

approach setting gains is to establish the operating level of input stages first by setting their

gain as high as possible but leaving about 20dB of headroom for loud peaks, then move on

to set the master gain to produce a good meter reading. Proceed to set the gain of

equalizers, limiters, crossovers, and amplifiers following the mixer in the same manner,

always working toward the later stages of the system.

If the noise is in the form of hiss, the problem is usually due to an input stage set up for low

gain and then compensating by increasing the master gain. Check that the Pad switch is not

enabled unnecessarily. Turn up the channel gain controls and reduce the master gain.

This is usually caused by "ground loops" in the system wiring. A complex sound system with

many sources separated by significant distance and using several power outlets has many

opportunities for this problem to occur. If possible, feed everything in the system from one

power source with a common ground. Use balanced input and output connections between

widely separated components.

Page - 9

Safety Instructions – 3

Introduction - 4

LX-308B Mixer – 5

Connectors & Cables – 5

Physical Description - 6

Installation – 7

Typical Applications - 8

Troubleshooting - 9

Dimensions - 9

Specifications - 10

Warranty - 11