Sony MKS-8080 Maintenance Manual page 64

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2
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3
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001
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5
A B
ADDRESS
ADDRESS
Q4
2SC2412K-T-146-QR
2SC2412K-T-146-QR
R225
4.7k
VS-BUS
IC37
MAX489CSD+TG068
IC14 (3/5)
6 7
IC16 (4/7)
TC74VHC08F(EL) GND +5V
TC74VHC04F(EL) GND1 GND2
9 8
RE B
3 11 R226
100k
RS422RXD
RO A
2 12 1.8k
9
R239
RS422OE 8
10 DE Z
4 10
R240
1.8k
RS422TXD DI Y
5 VCC 9 R227
100k
C205 14 +5V
0.1uF
GND
IC38
MAX489CSD+TG068
6 7
R229
GND GND
R241
GND1 GND2 100k 1.8k
RS422DIR B
RE
3
11
RO A
2 12
R242
1.8k
DE Z
4 10 R230
100k
DI Y
+5V
5 VCC 9
C210 +5V
14
0.1uF
R233
4.7k
Q6
2SC2412K-T-146-QR
A5
DATA
RS232CTX
RS232CRTS
RS232CRX
RS232CCTS
C
CPU-323 (2/3) CPU-323 (2/3)
SUFFIX: -14, 15 SUFFIX: -14, 15
Q5
%A10
%A6
%A5
R228
4.7k %A4
%A3
%A2
%A1
TERM
%A0
S201
1 2
3 4
GND
VSBUS
CN3
RXD(+) 3 (3/10)
(EMC)
R231
R235 R237 R223
330 330 330
10k
A5
CN3
RXD(-) 8 (8/10)
%FL1
%WR1
%FL2
%A9
%A8
TXD(-) 2 CN3 (2/10)
R238 R232 R236 R224
330 330 330 10k
CN3 (7/10)
TXD(+) 7
RB206
1k
CN3 (1/10)
FRAM-GND 1
%D7
4 CN3 (4/10)
RXD-COM
%D6
NC 5 CN3 (5/10)
%D5
CN3 (6/10)
TXD-COM 6
%D4
CN3
FRAM-GND 9 (9/10)
R234 %D3
4.7k
CN3 (10/10)
%D2
11 10
%D1
Q7
%D0
GND
2SC2412K-T-146-QR
%RD1
DATA
+5V
C211 0.1uF C206 0.1uF
GND
2 16
11 V+ VCC 14
T1IN T1OUT
10 7
T2IN T2OUT
13
12
R1OUT R1IN
9 8
R2OUT R2IN
4
1
C1+ C2+
C207
C208
0.1uF 0.1uF
3 5
C1- C2-
V- GND
IC36 6 15
MAX202CSE-T
C212 GND
0.1uF
5-6 5-6
D E
+5V
IC9
C200
0.1uF
TC74VHC541F(EL)
20
GND
FB201
2 Vcc 18
(20/36) CN1
A1 Y1 A10 20
FB202
3 17
19 (19/36) CN1
A2 Y2 A5
FB203
4 16
18 (18/36) CN1
A3 Y3 A5
15 FB204
5
17 (17/36) CN1
A4 Y4 A4
6 14 FB205
16 (16/36) CN1
A5 Y5 A3
7 13 FB206
15 (15/36) CN1
A6 Y6 A2
FB207
8 12
14 (14/36) CN1
A7 Y7 A1
FB208
9 11
13 (13/36) CN1
A8
Y8 A0
1
G1
19
G2
GND
GND
10
GND IC10
+5V
C201
TC74VHC541F(EL)
0.1uF
20
GND
FB209
2 Vcc 18
26 (26/36) CN1
A1 Y1 A5
3 17
25 (25/36) CN1
A2 Y2 FL1
FB211
4 16
24 (24/36) CN1
A3 WR
Y3
5 15 FB212
23 (23/36) CN1
A4 Y4 FL2
6 14 FB213
22 (22/36) CN1
A5 Y5 A9
7 13 FB214
21 (21/36) CN1
A6 Y6 A8
8 12
A7 Y7
9 11
A8 Y8
1
G1
19
G2
+5V
GND
GND
10
GND
+5V C202
IC11
0.1uF
TC74VHC245F(EL)
36 (36/36) CN1
D7
GND
20
37
38
FB215
2 VCC 18
B1
A1
3 17 FB216
35 (35/36) CN1
A2 B2 D6
4 16 FB217
34 (34/36) CN1
A3 B3 D5
5 15 FB218
33 (33/36) CN1
A4 B4 D4
FB219
6 14
32 (32/36) CN1
A5 B5 D3
FB220
7 13
31 (31/36) CN1
B6 D2
A6
8 12 FB221
30 (30/36) CN1
A7 B7 D1
9 11 FB222
29 (29/36) CN1
A8 B8 D0
19
G
1
GND
DIR
GND
10
RB205
GND
1k
+5V
+5V
R243
10k CN5
DCD 1
RXD 2
TXD 3
DTR 4
GND 5
GND
DSR 6
RTS 7
CTS 8
NC 9
(EMC)
F G
CPU-323 (2/3)
BOARD NO. 1-678-829-14, 15
MKS-8080
MKS-8082
MKS-8080/8082
H