SMART MN586B User manual

MN586B Active Cinema Booth Monitor
The SMART MN586B Cinema booth monitor is a low cost active monitor that employs a 10
Watt solid state amplifier and a 4 inch loudspeaker mounted on a 5 1/4 inch high rack mount
panel. Input connections are made to Phoenix screw type terminal strips on the back of the PC
board of the audio power amplifier. Each of six channels can be selected by the front panel
Channel Selector Switch. The channels are labeled:
LEFT-CENTER-RIGHT-LEFTSURROUND-RIGHTSURROUND-SUBWOOFER.
Theslideswitch mounted on the front panel allowsforswitchingbetwenprocessorandampli-
fierinputs. Inputwiringtothemonitoramplifiermaybeamulti-conductorshieldedaudio cable
orwithindividualshieldedcablesforeachchannel. SincetheMN586Bisalmostalways
mountedbetween the cinema stereo processor and the power amplifiers,wiringisgenerally
very short. The processor and amplifier grounds are isolated from each other to prevent ground
loop hum in the rack system.
The power transformer for the MN586B delivers 18VoltsAC to the PC board. The quick con-
nect inputs for theAC are clearly labeled on the PC board. Export models are supplied with a
US type line cord. You must cut off the power plug and add your own local power plug.
The special loudspeaker used in the MN586B has a clean midrange response to allow the
sound to penetrate the normal booth noise. This shaped response allows maximum clarity while
monitoringeach channel.
SMART maintains a factory service department to assist you in any service questions you may
have. Technicians are available from 9:00A.M. until 5:00 P.M. EasternTime Monday through
Friday.
SMARTDevices, Inc.
5945 Peachtree Corners East
Norcross, GA 30071-1336
800-45-SMART Toll Free
770-449-6698 Voice
770-449-6728 FAX
Information:[e-mail]
Service:[e-mail]
http://www.smartdev.com/

1 1
2 2
3 3
4 4
A A B B
-
4+1
AC2
3
AC1
2
BR1
200pFc
C5
0.1uF
C8
1uF
C3
1T3 1T4
+
1000uF 35V
C6
+
4700uF 35V
C1
1
T1
1
T2
21
1%
10 R27
21
1%
10 R22
21
1%
10 R25
21
1%
10 R29
21
1%
10 R31
21
10
1%
R19
21
1%
10 R6
21
1%
2K7
R3
21
1%
15K R2
2
TB2B
3
TB2C
1
TB2A
5
TB2E
6
TB2F
4
TB2D
12
TB1L
10
TB1J
8
TB1H
5
TB1E
4
TB1D
2
TB1B
1
TB1A
7
TB1G
11
TB1K
9
TB1I
6
TB1F
3
TB1C
2
TB3B
5
TB3E
7
TB3G
9
TB3I
11
TB3K
4
TB3D
1
TB3A
3
TB3C
6
TB3F
8
TB3H
10
TB3J
12
TB3L
+
1
-
2
GND
3
OUT 4
Vs
5
U1
+
4.7uFT 35V C2
+
4.7uFT 35V
C7
+
4.7uFT 35V
C4
1 8
2 3 4 5 6 7 9
10 11 12 13 14
SW1
21
2.7
1%
R4
21 1%
10K
R16
21 1%
10K
R15
21 1%
10K
R14
21 1%
10K
R13
21 1%
3K3
R12
21 1%
10K
R11
21 1%
3K3
R10
21 1%
10K
R9
21 1%
3K3
R8
21 1%
180K
R17
21 1%
470K
R18
21 1%
180K
R20
21 1%
470K
R21
21 1%
180K
R23
21 1%
470K
R24
21 1%
470K
R26
21 1%
470K
R28
21 1%
470K
R30
21
1%
910 R5
1 3 4 6
2 5
SW2
2 1
t
100K
R1
21
1%
OPEN
R7
P_GND
A_GND
P_GND P_GND P_GND P_GND P_GND P_GND
A_GND
A_GND
A_GND
A_GND
A_GND A_GND
0
0 0
0
0
24V+
0
0
24V+
0
5945 Peachtree Corners East Norcross, GA 30071-1336 770 449-6698 Revision: Page of
Page Size:
SMART Devices, Inc.
586BB500 - MN586B ECONOMY MONITOR
RJL
B
March 18, 19991 - 3.25.1999 - RJL 11
Designer:
A_LS+
A_RS+
A_SUB+
A_R+
A_C+
A_L+
P_L+
P_C+
P_LS+
P_RS+
P_SUB+
P_R+
To S
p
eaker
From Power Transformer 18 VAC