Panasonic WJ-FS616 Service Manual page 22

Pin Name I/O
122 GND – Ground terminal.
123 DFULZA O DFULZA signal output terminal.
124 ORUNA O ORUNA signal output terminal.
125 BFMPZA O BFMZA signal output terminal.
126 RX/TXZA I RX/TXZA signal input terminal.
127 WENZA O Write Enable signal output terminal.
128 CHSLA1 I CHSLA1 signal input terminal.
129 CHSLA2 I CHSLA2 signal input terminal.
130 CHSLA3 I CHSLA3 signal input terminal.
131 CHSLA4 I CHSLA4 signal input terminal.
132 SYNC16 I 16CH Sync signal input terminal.
133 DIN16 I 16CH Data input terminal.
134 DOUT16 O 16CH Data output terminal.
135 IFCP16 O 16CH IF Clamp Pulse output terminal.
136 DGP3_16 O 16CH DGP3 signal output terminal.
137 GND – Ground terminal.
138 SYNC15 I 15CH Sync signal input terminal.
139 DIN15 I 15CH Data input terminal.
140 DOUT15 O 15CH Data output terminal.
141 IFCP15 O 15CH IF Clamp Pulse output terminal.
142 DGP3_15 O 15CH DGP3 signal output terminal.
143 SYNC14 I 14CH Sync signal input terminal.
144 DIN14 I 14CH Data input terminal.
145 DOUT14 O 14CH Data output terminal.
146 IFCP14 O 14CH IF Clamp Pulse output terminal.
147 DGP3_14 O 14CH DGP3 signal output terminal.
148 GND – Ground terminal.
149 SYNC13 I 13CH Sync signal input terminal.
150 DIN13 I 13CH Data input terminal.
151 DOUT13 O 13CH Data output terminal.
152 IFCP13 O 13CH IF Clamp Pulse output terminal.
153 DGP3_13 O 13CH DGP3 signal output terminal.
154 SYNC12 I 12CH Sync signal input terminal.
155 DIN12 I 12CH Data input terminal.
156 DOUT12 O 12CH Data output terminal.
157 IFCP12 O 12CH IF Clamp Pulse output terminal.
158 DGP3_12 O 12CH DGP3 signal output terminal.
159 GND – Ground terminal.
160 GND – Ground terminal.
Description
2.2.
IC60 on the Main Board is using the Octal 3-State
Inverted Bus Transceivers IC MC74AC640DT.
Description of this IC is as follows:
DIR 1
A1 2
A2 3
A3 4
A4 5
A5 6
A6 7
A7 8
A8 9
GND 10
Truth Table
INPUTS
DIR
G
L L
L H
∗
H
∗
: Don't care.
22
20 Vcc
19 G
18 B1
17 B2
16 B3
(TOP VIEW)
15 B4
14 B5
13 B6
12 B7
11 B8
OPERATION
B Data to A Bus
A Data to B Bus
Isolation