Symetrix 402, 1A01 Schematic
65 4 3 2 1
FACTORY TEST: HOLD DELAY + UNITS
HOLD DEC AND PRESS INC TO ADVANCE TESTS
SYSTEM INIT: HOLD INC AND DEC
ADD00
D
ADD01
ADD02
ADD03
ADD04
ADD05
ADD06
ADD07
ADD08
ADD09
ADD10
ADD11
ADD12
ADD13
RD-
BMS-
(SH 2,B3)
C
ADD00
ADD01
ADD02
(SH 2,B3)
DMS-
ADD12
ADD13
1
2
3
4
5
6
B
ADD01
ADD02
ADD03
ADD04
ADD05
ADD06
ADD07
ADD08
ADD09
+5V
C80
.1uF
A
C79
.01
256K x 4 or 1M x 4
11
A0
10
A1
9
A2
8
A3
7
A4
6
A5
5
A6
4
A7
29
A8
28
A9
24
A10
27
A11
3
A12
30
A13
31
A14
2
A15
25
OE
/VPP
23
CE
27C512 SMD
U17A
A
B
C
G2A
G2B
G1
74HC138 SMD
U25
9
A0
10
A1
11
A2
12
A3
14
A4
15
A5
16
A6
17
A7
18
A8
5
A9
13
VCC
26
VSS
DRAM_1MX4
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
RAS
CAS
DQ2
DQ3
DQ4
DQ1
U20A
WE
OE
15
14
13
12
11
10
9
7
4
23
3
22
1
2
24
25
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
13
14
15
18
19
20
21
22
SEGCLK
DIGCLK
(SH 3,7)
MTRCLK_1
MTRCLK_2
KICK
KEY1
KEY2
RASCASDWRRD-
DATA20
DATA21
DATA22
DATA23
DATA08
DATA09
DATA10
DATA11
DATA12
DATA13
DATA14
DATA15
DATA23
DATA22
(SH 3)
(SH 8)
(SH 8)
(SH 5)
(SH 3)
(SH 3)
(SH2,D1)
(SH2,D1)
(SH2,D1)
(SH2,B3)
RST-
(SH 7)
C72
33pF
Y1
12.288MHZ
C73
33pF
U21D
12
13
74ACT00_SMD
+5V
11
ADD[00:13]
DATA[00:23]
20
RESET-
19
IRQ2-
18
BR-
40
BG-
17
MMAP-
42
CLKIN
43
CLKOUT
41
XTAL
U27C
9
10
74ACT32_SMD
U27D
12
13
74ACT32_SMD
U22A
ADSP_2105
8
11
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
PMSDMSBMS-
RD-
WR-
SCLK1
DR1
RFSI
TFSI
DT1
DRAWN:
RELEASED:
DMS-
U21B
DATED:
62
63
64
65
66
67
68
1
3
4
5
6
7
8
9
58
59
60
61
11
12
13
14
15
21
22
23
24
25
27
28
30
31
32
33
34
35
36
37
38
39
45
44
56
55
54
53
52
DATA00
DATA08
DATA09
DATA10
DATA11
DATA12
DATA13
DATA14
DATA15
DATA20
DATA21
DATA22
DATA23
ADD00
ADD01
ADD02
ADD03
ADD04
ADD05
ADD06
ADD07
ADD08
ADD09
ADD10
ADD11
ADD12
ADD13
ADD13
DMSBMS-
(SH2, C6)
RDWR-
SDATAIN
(SH 4)
SDATAOUT
(SH 6)
ADD00
4
5
74ACT00_SMD
A.R.G./CH 10-17-95
DATED:
RD-
WR-
R30
0 OHM
U24A
2
CLR
1
CLKA
74HC393_SMD
U24B
12
CLR
13
CLKA
74HC393_SMD
U21C
74ACT00_SMD
8
R77
51.1
6
U27A
2
1
74ACT32_SMD
U21A
1
2
74ACT00_SMD
3
QA
4
QB
5
QC
6
QD
11
QA
10
QB
9
QC
8
QD
9
10
COMPANY:
TITLE:
DRAWING NO:
MCLK
(SH 4,6)
+5V
U26A
4
S
3
CLK
3
3
R92
51.1
R93
51.1
ADDR/DMS-
U27B
4
5
74ACT32_SMD
RDWR-
SCLK
(SH 4,6)
L/R-
(SH 4,6)
A13
A0
RD-/WR-
RASCAS-
DRAMWR-
6
2
D
1
R
74ACT74_SMD
U26B
10
S
11
CLK
12
D
Q-
13
R
74ACT74_SMD
U23B
10
S
11
CLK
12
D
13
Q-
R
74ACT74_SMD
U23A
4
S
3
CLK
2
D
1
R
74ACT74_SMD
R91
10K0
SYMETRIX INC.
14926 35th Avenue West
Lynnwood, WA 98037-2303 USA
402 - KERNEL
5
Q
6
Q
9
Q
8
9
Q
8
5
Q
6
Q
SHEET:
RAS-
(SH2, B5)
CAS-
(SH2, B5)
DWR-
(SH2, B5)
REV:
OF
1952 402-1
D
C
B
A
A01
65 4 3 2 1
REVISION RECORD
REV
A
A.01 R16,17,22,24 TO 249, WHEN AK5351 SUBSTITUTED FOR U3 12/28/98
REVISIONS DONE OR ECO NUMBER:
RELEASED TO PRODUCTION
DATE:
9/30/96
D
C
B
+ INPUT
SIG GND
CHAS GND
BALANCED/
UNBALANCED
INPUT
- INPUT
J3-1
J3-3
J3-4
J2 1/4" TRS JACK
J3-2
CHGND1
BALANCED
INPUT
J1
XLR-FEM
1
4
-BYP
(SH5)
2
3
C13
220pF
(CHGND)
R1
4K99
C14
220pF
1
MTHOLE#6
(CHGND)
R2
4K99
+BYP
(SH5)
MT1
C1
220pF
AGND
C2
220pF
R3
4K99
R4
4K99
5
6
33pF
C7
33pF
R8
4K99
U1B
+
NJM2068M
R7
4K99
C6
D
C
7
A/D
(SH4)
B
A
DRAWN:
A.R.G./CH 10-17-95
RELEASED:
DATED:
DATED:
COMPANY:
TITLE:
DRAWING NO:
SYMETRIX INC.
14926 35th Avenue West
Lynnwood, WA 98037-2303 USA
402 - INPUT SECTION
SHEET:
A
REV:
OF
2952 402-1
64321
5
INPUT LEVEL
D
C
A/D
(SH 1)
C16
47NP
R10
1K05
R13
1K05
R26B
10KA
BKT
45
1
R26A
10KA
2
3
CW
C9
D
33pF
U2A
2
+
NJM2068M
U2B
+
NJM2068M
1
R12
4K99
R11
4K99
7
2
3
U1A
+
NJM2068M
LEFT:INVERTED, RIGHT:NONINVERTED
R18
2K00
R21
R14
2K00
R15
2K00
1
R16
249
2K00
R17
249
R24
249
R22
249
1500pF
1500pF
C19
.1uF
C21
C15
4.7NP
8
9
3
4
5
C17
U3A
AINL+
SDATA
FSYNC
L/R*
SCLK
AINL-
SMODE
AINR+
AINR-
VREF
AK5350_SMD
MCLK
CMODE
TSTH
TST2
TST3
TST4
TST5
PD
TST1
23
22
21
20
25
19
24
18
11
10
12
13
16
17
SDATAIN
L/R-
SCLK
MCLK
RST-
(SH 2)
(SH 2)
(SH 2)
(SH 2)
(SH 7)
C
3
6
5
B
+15VAIN
(SH 9)
C28
.1uF
R9
4K99
U6
7805CT
1
VIN
GND
VOUT
2
3
C20
.1uF
4K99
C27
.1uF
R5
4.7NP
C5
.1uF
C12
C3
4.7NP
BEAD_SMD
6
VA
26
VB
7
AGND
AK5350_SMD
BEAD_SMD
L2
L1
U3B
VD
DGND
14
15
C32
4.7NP
C26
.1uF
D2
1N4148
COMPANY:
D3
1N4148
B
R23
0 OHM
SYMETRIX INC.
DRAWN:
A.R.G./CH 10-17-95
RELEASED:
DATED:
DATED:
TITLE:
DRAWING NO:
14926 35th Avenue West
Lynnwood, WA 98037-2303 USA
402 - ANALOG TO DIGITAL
SHEET:
REV:
OF
3952 402-1
AA
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