Manual

102.1 mm
(4 9/16 in.)
50.8 mm
(2 1/32 in.)
161.9 mm
(6 3/8 in.)
MX412D: 355.4 mm (14 in.)
MX418D: 501.7 mm (19
3
/
4
in.)
approximately 3 m
(10 ft)
FIGURE 5 •ABBILDUNG 5 •FIGURA 5
FIGURE 6
•ABBILDUNG 6FIGURA 6
FIGURE 9
•ABBILDUNG 9 •FIGURA 9
RED (Audio +)
ROUGE
ROT
ROJO
ROSSO
SHIELD
BLINDAGE
SCHILD
BLINDAJE
SCHEMATURA
Black (Audio–)
OIR
SCHWARZ
EGRO
NERO
ORANGE  NARANJA  ARANCIA
LED IN  ENTREE DEL  LED EIN
ENTRADA DE LED  INGRESSO LED
WHITE  BLANC  WEISS-
BLANCO  BLANC
SWITCH OUT  COUPURE
AUSCHLATER AUS
SALIDAD DE INTERUPTER
USCITA INTERUTORE
GREEN  VERT  GRUN  VERONE
LOGIC GROUND  MASSE LOGIQUE  LOGISCHE ERDE
TIERRA DE CIRCUITOS LOGICOS  MASSA LOGICA
CABLE TYPE  TYPE DE CABLE  KABLTYP  TIPO DE CABLE S TIPO DE
CAVO
FIGURE 7 •ABBILDUNG 7 FIGURA 7
MIC
ELEMENT
220 pF
220 pF
FET
86E8958
W1
W2
W3
SHIELD BLINDAGE SCHILD BLINDAJE SCHERMATURA
 RED ROUGE ROT ROJO ROSSO
 BLACK NOIR SCHWARZ NEGRO NERO
FIGURE 8 •ABBILDUNG 8 FIGURA 8
MICROPHONE WIRING DIAGRAM
RED ROUGE ROT ROJO ROSSO
BLACK NOIR SCHWARZ NEGRO NERO
WHITE/SHIELD BLANC/BLINDAGE WEIß/SCHILD
BLANCO/BLINDAJE BIANCO/SCHERMATURA
BLACK NOIR SCHWARZ NEGRO SCHEMATURA
RED ROUGE ROT ROJO ROSSO
A.C. Voltage
D.C. Voltage
A.C. Voltage, Mic Off
D.C. Voltage, Mic Off
Printed Clrcuit Ground
Case Ground
(+) / (–) indicate A.C. polarity relative to input test signal.
NOTES
:
1. All resistors1/10 Watt, 1%, 0805 unless otherwise speci-
fied.
2. Electrolytic capacitors shown in µF, ±10%, 50V or more, un-
less otherwise specified.
3. The elements U1E and U2C designate Power (+Vcc) and
Ground Terminals only the corresponding ICs.
4. The following symbols denote:
5. All voltages measured with a meter or oscilliscope having 10
megaohm or greater input impedance with preamp input driv- en by a 0.1 Vrms, 1kHz signal through the test circuit shown below. A Shure M367 mixer or equivalent, with 48 V phantom power switched on, supplies the required power and load to the preamp. Values shown may vary +/– 20%.
6. Standard symbols indicate voltages for mic on. Symbols with
dark edges indicate voltages for mic off (see note 4). Note: Mic is truned off by holding the membrane switch closed, shorting J4.
0.1 Vrms
1 kHz
TEST CIRCUIT
W2
W3
W1
30.1 K
1.82 K
10 µF, 10V
+Vcc
+Vcc
+Vcc
+Vcc
+Vcc+Vcc
+Vcc
+Vcc
+Vcc
+Vcc
+Vcc
+Vcc
+Vcc
+Vcc
NOT INSTALLED
Logic Ground
12
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