Shure SCM410E User Manual page 16

INSERTING AN INPUT LINE PAD
To insert a 40 dB line pad for a given microphone input, remove the
resistors specified in the following table.
Channel Remove Resistor
1 R1005, R1006
2 R2005, R2006
3 R3005, R3006
4 R4005, R4006
DISABLING THE MASTER LEVEL CONTROL
The Master gain control can be disabled to prevent tampering. Refer
to the following table for gain levels and resistor values.
Master Section Gain
-6 dB
0
6 dB
CHANGING THE LIMITER THRESHOLD
To change the limiter threshold from the preset value of +16 dBu,
modify the circuitry according to the following table.
CHANGE LIMITER THRESHOLD
Limiter
Threshold (dBu) DIP switch
0 On
+4 On
+8 Off
+12 On
n
+16
(default)
+20 On
+24 On
CHANGING HOLD TIME
To change the hold time from the preset value of 0.4 seconds, modify
the circuitry according to the following table.
CHANGE HOLD TIME
Hold Time
(seconds)
0.3
0.4 (default)
1.0
1.5
LOCAL AUX OPERATION
This modification removes the auxilliary audio from the SCM410
outputs. Auxilliary audio originates from the aux inputs of the Shure
SCM810, SCM800, and AMS8100 mixers when linked to the SCM410.
Resistance
5.1 k
10 k
20 k
Limiter X9003 R9149
-- Remove
Short --
Short --
-- Remove
-- --
-- Remove
-- Remove
X9000 R9073 R9079
-- -- 2M
-- -- --
Short -- --
Short 470k --
Procedure:
1. Remove resistor R9203.
2. Install new resistor at jumper R9173.
R9142
20k
--
--
110k
--
300k
400k
Procedure:
1. Remove resistor R9187.
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