Vizio D-5.5E instruction manual Procedure for Changing Internal Switch Setting, Fig l

Procedure for Changing Internal Switch Setting

NOTE:

The internal switches have been provided for added versatility when using the D-5.5 and D-5.5E in a variety of applications.

AUX 1 / AUX 2 SEND PRE/POST EQ SELECTION SWITCH: Each input features an auxiliary send control

for use as either an additional effects send, or as an

on-stage monitor send. You should note that the Aux 1

and 2 control are a "split" pot with the detent position (12o'clock) being the off position. Typically, the control would be rotated clockwise ("post") when used as an effects send. This enables the effects level to

be automatically increased as the input channel level

increases. Obviously, since this signal is also derived "post" EQ, any changes made in the input channel's EQ

settings will be reflected in the effects signal. When the AUX 1 or 2 control is to be used as an on-stage monitoring send, the control would typically be rotated

counter clockwise ("pre"). This allows the on-stage

monitor mix to operate independently of the input channel's fader. In other words, any change in the input

channel's fader will not affect the level of the monitor

mix. The Aux Send Pre/Post EQ Selection Switch is active only when the Aux 1 or 2 Control is used in the "pre" (counter clockwise) position. When the switch is set to the "pre" EQ position, the input channel's EQ controls will not affect the on-stage monitor mix. This is particularly desirable when the input source is a microphone. Since an on-stage monitor system is normally operated near acoustic feedback, a change in EQ (especially an increase in high frequencies) may cause ringing or squealing (feedback) through the on-stage monitor speaker system. However, when the input source is a synthesizer, musical instrument, etc., which is not so susceptible to feedback, you may desire to place the switch in the "post" EQ position so that the input channel EQ will affect that instrument in the monitor mix.

NOTE:

The Aux 1 and 2 controls are unable to independently derive the pre or post EQ signal via the pre/post EQ selection switch, but always derive the same signal.

Also the selection switch provides the pre or post EQ

signal for the cue switch.

WARNING

The D-5.5 and D-5.5E contain voltage levels that may be

hazardous to human life. Always disconnect the power cord from wall outlet prior to removing either unit's

outer case.

1.Disconnect the power cord from the wall outlet.

2.Remove the four screws that secure the bottom panel to the main chassis, and carefully remove the panel (See Fig 1)

Fig l

INPUT

CHANNEL

PRE PRE PRE PCB

POST POST POST

BUSS LINK

CONNECTOR

Fig 2

3.Refer to block diagrams and Figure 2 for location and orientation of switches.

4.Set switches to desired positions.

5.Carefully replace the bottom panel and secure with four screws.

6.The Aux send pre/post EQ switch is factory preset at "POST" position (post-EQ).

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