Yamaha NHB32-C Service Manual page 19
Network hub and bridge
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Also See for NHB32-C:
- Owner's manual (44 pages) ,
- Owner's manual (43 pages) ,
- Manual (32 pages)
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TC74LVX4245FS (XU229A00)
MAIN: IC403
TRANSCEIVER
V
CCA
1
DIR
2
G
22
A1
3
A8
10
11
INPUTS
OUTPUTS
G
DIR
L
L
A=B
L
H
B=A
H
X
TE
L 13942296513
TC7WH04FU
MAIN: IC413, IC419
INVERTER
1A
1
3Y
2
2A
3
GND
4
TC7SH08FU
(XR680A00)
MAIN: IC220
AND
IN B
1
IN A
2
www
3
GND
.
http://www.xiaoyu163.com
V
CCB
23
24
Logic
Level
Converter
21
B1
Same as above block
14
B8
12
13
FUNCTION
A-BUS
B-BUS
OUTPUT
INPUT
INPUT
OUTPUT
X : Don't Care
Z
High lmpedance
Z : High lmpedance
(XY363A00)
TC7WH14FU
MAIN: IC208, IC306, IC317
SCHMITT INVERTER
8
Vcc
7
1Y
6
3A
5
2Y
TC74VHC32FT
MAIN: IC210, IC213, IC216, IC217
OR
Vcc
5
4
OUT Y
x
ao
y
i
http://www.xiaoyu163.com
8
V
1
24
V
CCA
CCB
2
23
DIR
V
CCB
A1
3
22
G
A2
4
21
B1
20
A3
5
B2
6
A4
19
B3
A5
7
18
B4
17
A6
8
B5
16
A7
9
B6
A8
10
15
B7
GND
11
14
B8
GND
12
13
GND
(TOP VIEW)
Q Q
3
6 7
1 3
(XY806A00)
1A
1
8
Vcc
3Y
2
7
1Y
2A
3
6
3A
GND
4
5
2Y
(XY945A00)
1A
1
14
Vcc
1B
2
13
4B
1Y
3
12
4A
2A
4
11
4Y
2B
5
10
3B
u163
2Y
6
9
3A
.
GND
7
8
3Y
2 9
9 4
2 8
TC74NHC163FT (X2378A00)
MAIN: IC313
CLEAR
1
16
CLOCK
2
CK
R
15
C
A
3
A
OA
14
B
4
B
OB
13
C
OC
C
5
12
D
6
OD
11
D
EN
EN
ENABLE
10
7
P
T
P
GND
8
9
TC7WH08FU (XW948A00)
MAIN: IC209
AND
1A
1
1B
2
2Y
3
GND
4
1 5
0 5
8
2 9
9 4
TC74VHC08FT
(XV891A00)
AES: IC201, IC321, IC414, IC715, IC814
AND
1A
1
14
1B
2
13
1Y
3
12
2A
4
11
2B
5
10
2Y
6
9
7
VSS
8
TC74VHC138FT
(XZ495A00)
AES: IC202
MAIN: IC205, IC206
3-8 DEMULTIPLEXER
1
16
A
A
Select
2
B
Y0
15
B
3
C
Y1
14
C
m
4
G2A
Y2
13
G2A
Enable
5
G2B
12
Y3
G2B
co
6
G1
Y4
11
G1
Output
7
10
Y7
Y5
Y7
Y6
8
9
GND
NHB32-C
9 9
Vcc
RIPPLE
CARRY
OUTPUT
OA
OB
OC
OD
ENABLE
T
LOAD
V
CC
8
1Y
7
6
2B
5
2A
2 8
9 9
VDD
4B
4A
4Y
3B
3A
3Y
Vcc
YO
Y1
Y2
Output
Y3
Y4
Y5
Y6
19
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