Filter
Top Products
17
Operating Manual - DPX-100 Graphic Equalizer - Compressor/Limiter
15. SCHEMATICS
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.
C
S:\En
g
ineerin
g
\CLIENT98\1551\10s1551c-1.Sch
10S1551
DPX-100 MINI-EQ + COMPRESSOR/LIMITER
James B Franks
Sheet # of
14
847 Holt Road
Webster, NY 14580-9103
Phone: Fax:
(716) 872-0010
(716) 872-0739
Print Date
3-May-2002
11:44:50
A->B @ 157%
C
J1
47P3151
J2
47P3151
1
3
2
J6
47P1030
1
3
2
J8
47P1295
5
6
7
U1B
4560
5
6
7
U2B
4560
R1
100
R2
100
R3
10.0K
R4
10.0K
R5
10.0K
C1
27P
C2
27P
C64
47U
R610.0K
VR1
B10K
R7
22K
R8
4.7K
R9
22K
C3
27P
R10
15K
D1
1N4148
R11
68
R12
4.7K
R13
68
R14
300K
VR7
50K
Ec+
2
1 8
V-
5
V+
7
Ec+
4
GND
6
Ec-
3
U18
52P2150
-18
+18
+18
-18
3
2
1
U2A
4560
R15
15K
C4
27P
C65
47U
J3
47P3151
R16
1K
3
2
1
U1A
4560
5
6
7
U3B
4560
VR2
B100K
C66
47U
R17
9.76K
R18
1M
R19
100K
R20
100K
C5
5pF
C6747U
R21
10K
R22 4.99K
R23
3.3K
R24
47K
R25
150K
R26
10K
R27
10K
3
2
1
U3A
4560
D2
1N4148
D3
1N4148
D4
1N4148
5
6
7
U4B
4560
D15
1N0754
D5
1N4148
2
3
1
SW1A
45P2600
-18
Q1
2N4125
R28
100
VR3
A10K
3
2
1
U4A
4560
-18
VR4
A1MEG
R29
100K
C79
1.5U
C80
1.5U
R30
68K
R31
3.3K
Q6
2N4123
+18
R32
1K
R33
1K
VR5
C10K
C68
47U
R34
10K
5
6
7
U5B
4560
VR6
B10K
R35
10K
R36
820
R37 12K
C6
27P
C69
47U
R38
10K
D6
1N4148
OUTPUT METER
PEAK BUS 1
INPUT METER
PEAK BUS 1
GAIN METER
THRES
OUTPUT
BALANCED
INPUT
GAIN +/- 15db
DETECTOR
TIP = INPUT
RING = SEND
SYMMETRY
ADJUST
THRESHOLD
(-20db MIN +41.4db MAX)
OUTPUT
(+17.0db MAX)
LIMIT
OUT
RATIO
ATTACK
RELEASE
TO EVEN
T1
TO ODD
T2
T3
FILTERS
10s1551c-2.SCH
PEAK BUS 1
PEAK BUS 2
THRES
SIG
GAIN METER
INPUT METER
OUTPUT METER
PWR SUPPLY + METERS
10s1551c-3.SCH
REVISION HISTORY
10s1551RV.SCH
J4
47P3151
1
3
2
J9
47P1295
3
2
1
U6A
4560
R39
10.0K
R40
10.0K
R41
10.0K
C7
27P
C8
27P
R42
10.0K
BALANCED
INPUT
C70
47U
R43
10K
J5
47P3151
1
3
2
J7
47P1030
R44
100
R45
100
3
2
1
U23A
4560
C71
47U
R46
10K
OUTPUT
D7
1N4148
PEAK BUS 2
C9
.1U
C10
.1U
C11
.1U
R47
62K
R48
470K
R49
22K
5
6
7
U23B
4560
2
3
1
SW8A
45P2600
OUT
C72
47U
R50
15K
R51
20K
VR8
R52
30K
C12
27P
5
6
7
U7B
2043
5
6
7
U8B
2043
3
2
1
U8A
2043
3
2
1
U7A
2043
3
2
1
U9A
4560
R53
10K
R54
10K
R55
10K
D8
1N4148
C73
47u
5
6
4
SW3B
45P2600
R56
20K
R57
390K
C74
47U
R5820K
PEAK BUS FLTR
R59
2.2M
T1
R60
10K
R61
10K
R62
10K
C13 27P
C14 27P
C15 27P
T2 T3
R63
10K
R64
10K
5
6
4
SW2B
45P2600
R65
2.55K
R66
8.2K
TO ODD
5
6
7
U9B
4560
2
3
1
SW2A
45P2600
R67
2.55K
R68
8.2K
TO EVEN
PEAK BUS FLTR
D9
SIG
2
3
1
SW5A
45P2000
C16
.1U
HPF
EQ SWITCH
RANGE SWITCH
IN +/- 6 dB
OUT +/- 15 dB
EQ GAIN
20 Hz HPF 18dB
/OCT.
EQ
COMPRESSOR/LIMITER
CASCADE
IN
OUT
OUT OUT
5
6
7
U6B
4560
R17610K
R177
10K
5
6
4
SW5B
45P2000
IN
D53
1N4148
PEAK BUS 1
JP18
JP18/2
JP17
JP17/2
JP16
JP16/2
1
J20/2A
1
J20A
7
J20G
7
J20/2G
2
J20/2B
5
J20/2E
4
J20/2D
3
J20/2C
2
J20B
3
J20C
5
J20E
4
J20D
+18
-18-18
+18
PEAK BUS FLTRPEAK BUS 2
JP20JP19 JP20/2JP19/2
FILTER BOARD
(ALONG WITH SHEET 2)
JP21/2
JP21