HS-MB1 - Sony Audio Service Manual (repair manual). Page 15

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HS-MB1
HS-MB1
15
15
4-5.  BLOCK  DIAGRAM – RS-232C  Section –
3
2
AUDIO AMP
IC1111
IC1112
IC1103
IC1104
1
RS232C AMP
IC1101
5
Lch+
SOURCE 1D
SOURCE-1-L
S1C_RX
S1C_TX
SOURCE-2-L
S2C_TX
S2C_RX
Lch-
Rch+
Rch
Rch-
CN1105
INPUT
SOURCE 1
D
1
2
6
7
8
3
RS232C TX AMP
IC1102
5
RS232C TX+
RS232C TX-
RS232C RX+
RS232C RX-
RS232C MB K TX+1
RS232C MB K TX-1
RS232C MB K RX+1
RS232C MB K RX-1
4
5
CN700 (2/2)
OUTPUT
ZONE 1
B
3
6
5
4
Lch+
Lch-
Rch+
Rch-
CN1106
INPUT
SOURCE 2
D
1
2
6
7
8
3
RS232C RX+
RS232C RX-
RS232C TX+
RS232C TX-
4
5
CN2300
CN300
RS-232C
SERVICE
B
S300
SERVICE
B
LOCAL
LOCAL
ZONE
INPUT
SOURCE
DMPORT
G
3
4
IC1113
IC1105
IC1106
SOURCE-3-L
S3C_TX
S3C_RX
Lch+
Lch-
Rch+
Rch-
CN1107
INPUT
SOURCE 3
D
1
2
6
7
8
3
RS232C RX+
RS232C RX-
RS232C TX+
RS232C TX-
4
5
IC1114
IC1107
IC1108
SOURCE-4-L
S4C_TX
S4C_RX
Lch+
Lch-
Rch+
Rch-
CN1108
INPUT
SOURCE 4
D
1
2
6
7
8
3
RS232C RX+
RS232C RX-
RS232C TX+
RS232C TX-
4
5
4
3
3
2
AUDIO AMP
IC1115
1
RS232C RX AMP
IC305
5
Lch+
DMPORT_L
ZONE1 (2/2)
K1CV_TX
K1CV_RX
DM_RX
DM_TX
Lch-
Rch+
Rch
Rch-
CN1105
1
2
4
7
8
5
RS232C TX AMP
IC304
5
RS232C TX+
RS232C TX-
RS232C RX+
RS232C RX-
6
3
3
4
4
3
3
4
RS232C AMP
IC319
SOURCE1 RX
DMPORT_RX
DMPORT_TX
RS232C_TX
RS232C_RX
DM_RX
DM_TX
K1CV_TX
K1CV_RX
K2CV_TX
K2CV_RX
K3CV_TX
K3CV_RX
K4CV_TX
K4CV_RX
K5CV_TX
K5CV_RX
K6CV_TX
K6CV_RX
K7CV_TX
K7CV_RX
K8CV_TX
K8CV_RX
RS232C_TX
RS232C_RX
KEYPAD1 TX
KEYPAD1 RX
KEYPAD2 TX
KEYPAD2 RX
KEYPAD3 TX
KEYPAD3 RX
KEYPAD4 TX
KEYPAD4 RX
KEYPAD5 TX
KEYPAD5 RX
KEYPAD6 TX
KEYPAD6 RX
KEYPAD7 TX
KEYPAD7 RX
KEYPAD8 TX
KEYPAD8 RX
BURN IN MODE
SOURCE1 TX
SOURCE2 RX
SOURCE2 TX
SOURCE3 RX
SOURCE3 TX
SOURCE4 RX
SOURCE4 TX
S1C_RX
S1C_TX
S2C_RX
S2C_TX
S3C_RX
S3C_TX
S4C_RX
S4C_TX
5
4
RS232C TX+J
RS232C TX-J
RS232C RX+J
RS232C_TX
RS232C_RX
RS232C RX-J
6
3
4
3
RS232C TX AMP
IC2300
RS232C TX AMP
IC300
5
137
138
163
173
164
174
165
175
POW_LED_SW
31
154
155
135
134
141
140
144
143
149
151
152
148
169
168
158
170
159
171
160
157
4
3
RS232C RX AMP
IC301
15
RXD
R1IN
T1OUT
R1OUT
T1IN
TXD
3
2
13
16
17
166
5
RS232C TX AMP
IC318
SYSTEM CONTROL
IC100 (5/7)
5
SOURCE 2D
SOURCE 3D
SOURCE 4D
RS232C MB K TX+2
RS232C MB K TX-2
RS232C MB K RX+2
RS232C MB K RX-2
CN701 (2/2)
OUTPUT
ZONE 2
B
3
6
5
4
ZONE2 (2/2)
Same as ZONE1 
Same as SOURCE 1D
Same as SOURCE 1D
Same as SOURCE 1D
K2CV_TX
IC316
IC317
K2CV_RX
RS232C MB K TX+5
RS232C MB K TX-5
RS232C MB K RX+5
RS232C MB K RX-5
CN708 (2/2)
OUTPUT
ZONE 5
B
3
6
5
4
ZONE5 (2/2)
Same as ZONE1 
K5CV_TX
IC312
IC313
K5CV_RX
RS232C MB K TX+6
RS232C MB K TX-6
RS232C MB K RX+6
RS232C MB K RX-6
CN709 (2/2)
OUTPUT
ZONE 6
B
3
6
5
4
ZONE6 (2/2)
Same as ZONE1 
K6CV_TX
IC302
IC303
K6CV_RX
RS232C MB K TX+7
RS232C MB K TX-7
RS232C MB K RX+7
RS232C MB K RX-7
CN706 (2/2)
OUTPUT
ZONE 7
B
3
6
5
4
ZONE7 (2/2)
Same as ZONE1 
K7CV_TX
IC308
IC309
K7CV_RX
K7CV_TX
K8CV_TX
RS232C MB K TX+8
RS232C MB K TX-8
RS232C MB K RX+8
RS232C MB K RX-8
CN707 (2/2)
OUTPUT
ZONE 8
B
3
6
5
4
ZONE8 (2/2)
Same as ZONE1 
K8CV_TX
IC310
IC311
K8CV_RX
RS232C MB K TX+3
RS232C MB K TX-3
RS232C MB K RX+3
RS232C MB K RX-3
CN702 (2/2)
OUTPUT
ZONE 3
B
3
6
5
4
ZONE3(2/2)
Same as ZONE1 
K3CV_TX
IC306
IC307
K3CV_RX
RS232C MB K TX+4
RS232C MB K TX-4
RS232C MB K RX+4
RS232C MB K RX-4
CN703 (2/2)
OUTPUT
ZONE 4
B
3
6
5
4
ZONE4 (2/2)
Same as ZONE1 
K4CV_TX
IC314
IC315
K4CV_RX
LED
DRIVER
Q320
BURN IN MODE
CONTROL
Q101,102
D362
(DC IN INDICATOR)
SOURCE-1-L-SOURCE-4-L
DMPORT-L
AUDIO
SELECT
SECTION
C
5
3
4
(Page 11)
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