Shure AMS8100 Betriebsanweisung PDF herunterladen (Seite 17)

When both MUTE IN and OVERRIDE IN logic are grounded,

the Override mode will take precedence (as supplied, the

MUTE IN takes precedence over OVERRIDE IN).

Procedure:

1. Short jumper X1005.

2. Remove resistor R1087.

DEAD ZONE ON

MUTE IN

DEFEAT

As supplied, MUTE IN is intended for use as a momentary

cough button or privacy function (mute when necessary).

However, if the MUTE IN is intended to be used so that the talk-

er must unmute microphones to enable speech pickup (un-

mute when needed), this modification is needed. This re-

moves the muted channel from the MaxBus which eliminates

“dead zones.” A dead zone is an area in which a microphone

picks up a talker through a muted microphone and other micro-

phones do not activate for that talker.

Procedure:

Short jumper X1002.

CHANGING

MUTE IN

INHIBIT

As supplied, a channel will mute when its MUTE IN terminal is

grounded. The mute function for each channel can be modified

so that a logic “low” at the MUTE IN terminal prevents that

channel from gating on if it is off, but allows it to remain on if it is

already on. Use this modification to enable Filibuster Mode.

IMPORTANT: To prevent high-frequency oscillation, never

connect the GATE OUT to the MUTE IN of the same channel

unless the “Inhibit” modification has been made.

Procedure:

Short jumper X1007.

CHANGING

OVERRIDE IN

MUTE IN

(FILIBUSTER MODE)

This modification should only be performed with the

Change

MUTE IN to Inhibit

modification described above. This is only

necessary if the Mute function is desired along with Filibuster

Mode.

Procedure:

1. Short jumper X1006.

2. Remove resistors R1087 and R1082.

CHANGING THE OFF-ATTENUATION LEVEL

This procedure changes the off-attenuation level from -13 dB

(as supplied). Refer to the following table for attenuation levels

and resistor values.

Off-Attenuation Level Resistor Value

10 dB 18 kΩ

13 dB

(default)

30 kΩ

20 dB 75 kΩ

30 dB 250 kΩ

 dB open circuit

NOTE: As more Input channels are added to the system, the

off-attenuation increases slightly.

Procedure:

1. Remove resistor R9178.

2. Install new resistor

at jumper points R9177.

GROUP GATING

With this modification, several channels can be grouped to-

gether so that all of them activate whenever one of them acti-

vates. This is useful for miking choirs.

Procedure:

1. Locate pad PD1000.

2.Solder a wire from PD1000 to the other channels in the

group. For example, to gate channels 1–3 as a group, solder

a wire connecting PD1000, PD2000, and PD3000.

SHORTING OVERRIDE IN TO LOGIC GROUND INTERNALLY

1 2 ... 12 13 14 15 16 17 18

Kommentare zu diesen Handbüchern

Keine Kommentare

Shure AMS8100 Betriebsanweisung Seite 17

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Audiomischer Shure AMS8100