DBX 290 (rev A1) Schematic
ECN# DATE ECN# DATEDESCRIPTIONREVISIONREVISION DESCRIPTION
A0 6-28-96
A1
RELEASE FOR PRODUCTION EMI VERSION OF THE dbx 290
100ns DRAMS ARE TO SLOW AND CAUSE EXCESS DISTORTION
AND A ERROR IN 2.07 SOFTWARE WAS DISCOVERED. 1019 16 AUG 96
|LINK
|056038A1.001
|056038A1.002
|056038A1.003
|056038A1.004
|056038A1.005
dbx PROFESSIONAL PRODUCTS
8760 South Sandy Parkway
Sandy, Utah 84070
Title
dbx 290 (EMI) 80-6038
Size Document Number Rev
056038A1.000 A1
B
Monday, October 18, 1999
Date: Sheet of
0 5
Input Left/Mono
J1
J322110
3
Input Right
J2
J322110
3
+5V
R6
4.7K
DETECTOR
DETECTOR
THRSH
1
4
5
2
6
1
4
5
2
6
.22LLME1
C26
STEREO_IN
R30
20K
.047MA3
C23
25PJD1
100K
R50
+12V
6
U16B
5
4558
P3A
100K402011
R47 100K
8
C61
1NPME1
C47
25PJD1
R100
OMIT
7
1NPME1
R101
C59
C57
1NPME1
R93
OMIT
100K402011
P1A
2
13
3
2
U31A
-12V
R92
10.0K 1%
NE5532
4
R11
470
1
C14
470PMD1
2
13
Output Left
J3
J322110
1
4
5
2
6
R13
470
C22
470PMD1
3
C20
470PMD1
C12
470PMD1
R18
10.0K 1%
R38
20.0K 1%
R19
10.0K 1%
R39
20.0K 1%
2
U14A
3
-12V
P2A
100K402005
1 3
2
C49
10NPME1
1
4558
4
R96
2.00K 1%
4558
2
U32A
3
4
-12V
RET_L
1
R102
4.7K
DETECTOR
DETECTOR
R76
4.7K
1NPME1
51.1K 1%
C35
R98
R52
R51
2K
18K
C27
.0033J
SEND_L
OMIT
C42
R48
1NPME1
RET_R
51.1K 1%
D9
1N4148
P2B
100K402005
4 6
5
+12V
8
6
U32B
5
Q2
2N4124
C31
1NPME1
4558
+12V
7
+12V
R58
C45
OMIT
.022J
+12V
R44
10K
6
U15B
5
R27
3.3K
R22
100K
-12V
R41
20.0K 1%
C13
470PMD1
R20
10.0K 1%
C21
470PMD1
C43
200PMD1
D11
1N4148
D12
1N4148
R60
470K
R31
2K
+12V
8
6
U18B
5
4558
C7
R63
10K
R40
20.0K 1%
+12V
8
U14B
4558
C50
10NPME1
7
R59
15K
2
3
C29
240PMD1
D10
1N4148
U18A
4
-12V
R97
2.00K 1%
R29
220K
4558
1
6
5
R21
10.0K 1%
C51
7
.22LLME1
4558
3
1
U15A
2
4
-12V
R42
12K
2K
R99
8
R36
47K
7
4558
R43
150K
18K
C28
.0033J
SEND_R
R49
GATE
2
3
P3B
100K402011
C58
1NPME1
-12V
U16A
4558
4
1
C60
46
1NPME1
5
1NPME1
C56
P1B
100K402011
R95
OMIT
+12V
8
R12
NE5532
5
5
U31B
6
46
R94
10.0K 1%
C4
470PMD1
470
7
470PMD1
R14
470
Output Right
J4
J322110
1
4
C1
5
2
6
3
+5V
R7
4.7K
STEREO_OUT
VCC VDD +5V VSS
dbx PROFESSIONAL PRODUCTS
8760 South Sandy Parkway
Sandy, Utah 84070
Title
dbx 290 (EMI) - INPUT,OUTPUT,MIX 80-6038
Size Document Number Rev
056038A1.001 A1
B
Monday, October 18, 1999
Date: Sheet of
1 5
+12V
R69
10K
L_0DB_LED R_0DB_LED
L_0DB_LED R_0DB_LED
11
R68
R104
R105
SEND_L SEND_R
H3
HDR321076
PA3
PA5X2
SEND_R
SEND_L
10K
2N4124
R103
470K
-12V
1
2
L_18DB
L_18DB
3
L_12DB
L_12DB
4
L_0DB L_18DB_LED R_18DB_LED
L_0DB L_18DB_LED R_18DB_LED
5
L_6DB
L_6DB
6
R_18DB L_18DB R_18DB
R_18DB L_18DB R_18DB
7
R_12DB
R_12DB
8
R_0DB
R_0DB
9
R_6DB
R_6DB
10
1
-12V_LED
-12V_LED
2
L_18DB_LED LROW2 SWCOL0
L_18DB_LED LROW2 SWCOL0
3
L_12DB_LED DA0 SWCOL1
L_12DB_LED DA0 SWCOL1
4
L_0DB_LED DA1 LROW1 SWCOL2
L_0DB_LED DA1 LROW1 SWCOL2
5
L_6DB_LED DA2 LCOL0
L_6DB_LED DA2 LCOL0
6
R_18DB_LED DA3 LROW0 LCOL1
R_18DB_LED DA3 LROW0 LCOL1
7
R_12DB_LED DA3 DA4 SWROW3 LCOL2
R_12DB_LED DA3 DA4 SWROW3 LCOL2
8
R_0DB_LED SWCOL2 DA2 DA5 SWROW2 LROW3
R_0DB_LED SWCOL2 DA2 DA5 SWROW2 LROW3
9
R_6DB_LED SWCOL1 DA1 DA6 SWROW1 LROW2
R_6DB_LED SWCOL1 DA1 DA6 SWROW1 LROW2
10
+5VA
R145
4.7K
R144
1K
C37
.0047J
C71
4.7ME1
C40
.0047J
R142
1K
R143
4.7K
Q7
+5VPR
18K
OMIT
+12V
-12V
R53
10
1LLM50E1
C64
R56
R55
OMIT
R141
OMIT
R37 10K
C70
4.7ME1
1.2K
R108
2K
R109
2K
R131
2K
R107
1K
R106
330
R64
6.8
C25
47ME1
C46
47ME1
C48
47ME1
68PJD1
10K
OMIT
68PJD1
C30
OMIT
C66
C72
C65
13
L_0DB R_0DB
L_0DB R_0DB
U28D
10
LM339
L_6DB_LED R_6DB_LED DA4
L_6DB_LED R_6DB_LED DA4
9
14
L_6DB R_6DB DA6
L_6DB R_6DB DA6
U28C
8
LM339
12
-12V
+12V
3
L_12DB_LED R_12DB_LED
L_12DB_LED R_12DB_LED
5
2
L_12DB R_12DB
L_12DB R_12DB
U28A
4
LM339
7
1
U28B
6
LM339
.047MA3
C53
10
R23
200
+5VA
R62
200
.047MA3
R35 10
R45
10
C15
10KT
CLK_256
CLK_256
C73
25PJD1
C76
25PJD1
C69
C52
10KT
C74
.047MA3
C39
.047MA3
C75
.047MA3
R57
10K
R26 15K
R25
R32
10K
+5VA
10K
1LLM50E1
C62
XSYS2
SCK1
SCK0
SD0
SWS1
SWS0
DSEL
TSEL
WSEL
ODF2
ODF1
RST
CEN
HPEN
DCK0
DIOR
DIOL
FSEL
TEST1
TEST2
VDD
VSS
R74
1.2K
R114
2K
R115
2K
R118
2K
R113
1K
R112
330
C11
47ME1
R75
+12V
11
13
U29D
10
LM339
9
14
U29C
8
LM339
12
-12V
+12V
3
5
2
U29A
4
LM339
7
1
U29B
6
SWCOL0 DA0 DA7 SWROW0 LROW1
SWCOL0 DA0 DA7 SWROW0 LROW1
+5VA
*PROG
9
10
11
12
13
14
+5VA
15
39
40
41
42
43
44
38
16
17
.047MA3
C38
.047MA3
+5VA
18
1
2
3
5
4
LM339
C68
R28
100
2N4125
Q3
R15
10K
R46
10
C67
47ME1
+12V
+12V
R71
2K
R89
R88
10K
10K
*INEN0
Q6
2N4124
+5V
*UART_RST
*UART_RST
XLX_CLK
XLX_DATA
BUS_A
SYNC
CLK_256
D40
LEDR702113
0dB 0dB
D24
LEDG702114
-6dB
D20
LEDG702114
-12dB
D16
LEDG702114
-18dB
+12V
+12V
R65
2K
2N4125
Q4
U7
7805-V
1
3
I
O
G
2
R24
200
C36
47ME1
R54
200
C44
.047MA3
R67
20K
R66
47K
20
19
21
22
23
24
25
26
28
27
29
30
31
32
33
34
35
36
37
2N4124
R111
10K
R70
470K
U17
6
XIN
7
XOUT
8
XSYS1
VDDT
VSST
VREFR
BBOR
PINR
NINR
BAOR
BAIR
IREF
VDACN
VDACP
BAIL
BAOL
NINL
PINL
BBOL
VREFL
VDDA
VSSA
SAA7360/SM
Q8
R146
470
R110
OMIT
18K
+12V
-12V
-12V_LED
-12V_LED
D41
LEDR702113
D25
LEDG702114
-6dB
D21
LEDG702114
-12dB
D17
LEDG702114
-18dB
R73
20K
R72
47K
R90
10K
R77
4.7K
*OUTEN2
U21B
74HC244A
11
13
15
17
+5V
9
7
5
3
19
*OUTEN1
8
17
16
18
28
27
38
36
22
7
2
14
CLK_256
CLK_256
U34
PWRDWN
M0
M1
M2
PROG
RESET
CCLK
DIN/TEST
CBUS
CLK256
SYNC
DATA_IN
XILINX DBX1
DA0
DA0
DA1
DA1
DA2
DA2
DA3
DA3
DA5
DA5
DA7
DA7
+12V
11
1
DOUT
DA_DATA
DA_SCLK
DA_LRCLK
AD_LRCLK
AD_SCLK
U30
D02Q0
D13Q1
D24Q2
D35Q3
D46Q4
D57Q5
D68Q6
D79Q7
11
CLK
1
OE
74HC574
U20
D02Q0
D13Q1
D24Q2
D35Q3
D46Q4
D57Q5
D68Q6
D79Q7
CLK
OE
74HC574
HDC
LDC
S0
S1
S2
S3
S4
S5
S6
S7
100
R147
100
R132
19
20
37
5
6
4
10
40
44
34
32
30
15
25
35
11
DA[0..7]
DA[0..7]
.047MA3
C63
P4
123
5K402071
+5V
R81
R82 200
R83
R84
R85
10K
R86
10K
R87
10K
U22
1
SDATAI
2
SCLK
3
LRCK
4
MCLK
CS4330/SM
DELAY
R125
20.0K 1%
R123
20.0K 1%
R122
20.0K 1%
R119
20.0K 1%
R127
20.0K 1%
R128
20.0K 1%
200
200
200
Q9
2N5088
AOUTL
AOUTR
AGND
dbx PROFESSIONAL PRODUCTS
8760 South Sandy Parkway
Sandy, Utah 84070
Title
Size Document Number Rev
B
Date: Sheet of
19
18
17
16
15
14
13
12
19
18
17
16
15
14
13
12
3
U37
2
LM311
1
4
R124
10.0K 1%
R121
10.0K 1%
R120
10.0K 1%
R126
10.0K 1%
R129
10.0K 1%
R130
20.0K 1%
*UART_RST
*UART_RST
LROW3
LROW3
LROW0
LROW0
LCOL2 SWROW0
LCOL2 SWROW0
SWROW1
SWROW1
SWROW2
SWROW2
SWROW3
SWROW3
LCOL1
LCOL1
Q10
2N5088
LCOL0
LCOL0
Q11
2N5088
7
VA+
8
5
6
dbx 290 (EMI) - A/D/A,BAR GRAPH 80-6038
056038A1.002 A1
Monday, October 18, 1999
658
R135
7
1M
C16
.047MA3
DA[0..7]
+5V
R133
1K
*UART_RST
H2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
HDR321055
RET_L
RET_R
+5VA
C17
10KT
2 5
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