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JVC RX-DV5RSL Service Manual page 42

Home cinema dvd/cd control center
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RX-DV5RSL
LP61L1024S-12-X (IC641) : SRAM
1. Pin layout
1
NC
2
A16
3
A14
4
A12
5
A7
6
A6
7
A5
8
A4
9
A3
10
A2
11
A1
12
A0
13
I/O1
14
I/O2
15
I/O3
16
Vss
NJM2246M (IC402, IC403, IC404) : Video switch
1. Pin layout / Block diaglam
GND
8
6dB
AMP.
1
Vin1
1-42
V
32
DD
31
A15
CS2
30
WE
29
28
A13
A8
27
26
A9
A11
25
24
OE
A10
23
CS1
22
21
I/O8
I/O7
20
19
I/O6
I/O5
18
17
I/O4
Vout
V+
Vin3
7
6
5
BIAS
2
3
4
CTL1
Vin2
CTL2
2. Block diagram
V
DD
Vss
A0
DECODER
A16
CS2
CS1
CONTROL
OE
WE
3. Pin function
Symbol
Description
A0 - A16
Address Input
I/O1 - I/O8
Data Input/Output
CS1, CS2
Chip Select Inputs
WE
Write Enable Input
OE
Output Enable Input
V
Power Supply
DD
Vss
Ground
NC
No Connection
Control input - output signal
CTL 1
CTL 2
L
L
H
L
L/H
H
CORE
ARRAY
I/O1
DATA I/O
I/O8
Output
VIN 1
VIN 2
VIN 3

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