Mitsubishi S290U Service Manual page 69

Lc19 chassis
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IC BLOCK DIAGRAMS
IC604 NJM431U
1
REFERENCE
IC607,608,609 CXA3286R
11
V
RT
R1
R/2
R
R
R
9
R
VRM3
R
R
R
7
R
VRM2
6
V
IN
R
R
4
R
VRM1
R
R
R
2
R/2
V
RB
R2
15
CLK/T
13
CLK/E
14
CLKN/E
46
RESETN/T
48
RESETN/E
47
RESET/E
2
AV
CC
INV
DV
1
CC
5
8
44
30
1
2
6bit
63
64
65
6bit
126
127
128
129
6bit
191
192
8bit
193
6bit
254
255
D Q
SELECT
Q
3
10
45
SELECT1 DGND1
AGND
3
CATHODE
2
ANODE
DV
2
CC
DGND3
19
31
42
12
40
39
38
37
8bit
36
35
34
33
28
27
26
25
24
23
22
21
16
17
18
43
29
20
32
41
1
DV
3
EE
DGND2
IC6E1 74VHCT541AMTC
1
OE
2
I0
3
I1
4
I2
5
I3
6
I4
7
I5
8
I6
9
I7
10
GND
TRUTH TABLE
Inputs
OE1
OE2
L
L
H
X
X
H
L
L
H = High Voltage Level
L = Low Voltage Level
Z = Higt Impedance
X = Immaterial
(MSB)
PBD7
PBD6
PBD5
PBD4
PBD3
PBD2
PBD1
PBD0
(LSB)
(MSB)
PAD7
PAD6
PAD5
PAD4
PAD3
PAD2
PAD1
PAD0
(LSB)
SELECT2
VOCLP
PS
CLKOUT
Vcc
20
DC2
19
O0
18
O1
17
O2
16
O3
15
O4
14
O5
13
O6
12
O7
11
Output
I
H
H
X
Z
X
Z
L
L

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