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11
Operating Manual - DLM-821 Stereo Ducking Line/Microphone Mixer
1 2 3 4 5 6 78
A
B
C
D
E
8
7654321
E
D
C
B
A
B
APPROVED: Dw
g
#
Size
Drawn B
y
Rev.
D
10s8210-1.Sch
10S8210
DLM-821
(
Out
p
uts and Duckers
)
James B Franks
Sheet # of
16
847 Holt Road
Webster, NY 14580-9103
Phone: Fax:
(716) 872-0010
(716) 872-0739
Print Date
22-Jan-2004
11:47:56
A->B @ 157%
C
5
6
7
U6B
4560
3
2
1
8 4
U6A
4560
3
2
1
8 4
U3A
4560
5
6
7
U5B
2043
3
2
1
8 4
U7A
2043
5
6
7
U3B
4560
J9
SlimJack
R5
68
R7
68k
R11
4.7k
VR1B
C100K
R8
68k
3
2
1
8 4
U5A
2043
R6
68
R9
68k
R12
4.7k
VR1A
C100K
R10
68k
R14
100
10
11
12
SW2D
R15
100
7
8
9
SW2C
R22
5.6k
R26
15k
R16
100
R29
100k
C14
none
C5
1.5U
C16
47U
D11
1N4148
R23
5.6k
D12
1N4148
R31
22k
C28 27p
R39
2k
VR2D
B20K
R45
10k
C17
47U
3
2
1
8 4
U4A
4560
5
6
7
U4B
4560
R24
5.6k
R27
15k
R17
100
R30
100k
C15
none
C6
1.5U
C18
47U
D13
1N4148
R25
5.6k
D14
1N4148
R32
22k
C29 27p
R40
2k
VR2C
B20K
R46
10k
C19
47U
Ri
g
ht Output
Headphone Output
Left Output
Ri
g
ht Output Mute
Left Output Mute
VR2B
B20K
VR2A
B20K
Pan
(+0.4dB At Center)
Master Level
(+3dB Mid, +18dB Max)
R51
33k
D15
1N4148
5
6
7
U7B
2043
R52
33k
D16
1N4148
R37
22k
R38
22k
R28
15k
R13
4.7k
C24
47U
VR1C
B10k
R4
1k
R49
10k
C32
68p
C25
47U
D17
1N4148
D18
1N4148
R20
100
R50
10k
R21
100
Mono Output
Mono Level
(Shown Out)
(Shown Out)
C10 10pf
C11
10pf
C12
10pf
C13
10pf
C35
.1U
C36
.1U
-18
+18
RPeakBus
LPeakBus
RBus
LBus
Channels 3-6
10S8210-3.sch
Revision Sheet
10s8210RV.sch
CH 7 & 8 + Power Supply
10S8210-4.sch
RMeter
RPeakBus
LMeter
LPeakBus
Meter Cards and Indicators
10s8210-5.Sch
+18
-18
R18
4.7K
R66
None
R64
0
R55
33K
R34
33K
C22
10P
3
2
1
8 4
U1A
2043
LBus
LDuckBus
LPeak
LSum
RPeak
RSum
RPeak
LPeak
RPeak
LPeak
RMeter
LMeter
LPeak RPeak
LBus
RBus
+18
-18
R3
4.7K
R65
None
R63
0
R47
33K
R19
33K
C9
10P
5
6
7
U1B
2043
RBus
VCA-DC
RDuckBus
D1
1N4148
D3
1N4148
RPeak
LPeak
6
5
4
3
2
1
J5
EUROBLOCK 6
RSum
LSum
Left Ducking VCA
Right Ducking VCA
-18
+18
3
2
1
J4
EUROBLOCK 3
-18
+18
-18
+18
-18
+18
+18
-18
-18
+18
C37
.1U
C41
.1U
C26
.1U
C21
.1U
RPeakBus
LPeakBus
RBus
LBus
Channels 1-2
10S8210-2.sch
5
6
7
U10B
4560
3
2
1
84
U10A
4560
-18
+18
C23
.1U
2
1 8
5 7
4
6
3
+
-
U11
2180LC
2
1 8
5 7
4
6
3
+
-
U12
2180LC
5
6
4
2
3
1
SW1A
R2
100
1
2
3
J14
HDRM 1X3
1
2
3
J15
HDRM 1X3
J8
J2
Mic/Line
(Shown Out)
(Line = Out)
C42
.1U
C40
.1U
Enable
Enable
R33
47K
R35
2.7K
12. DLM-821 SCHEMATIC DIAGRAMS