JVC RX-DV3SL Service Manual page 26

RX-DV3SL
W24L010AJ-12 (IC641) : SRAM
1. Pin layout
3. Pin function
Pin No. Symbol
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, 403, 404) : Video switch
1. Pin layout / Block diaglam
GND
8
6dB
AMP.
1
Vin1 CTL1
1-26
Function
No Connection
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Address Input
Data Input/Output
Data Input/Output
Data Input/Output
Ground
Vout V+ Vin3
7 6 5
BIAS
2 3 4
Vin2 CTL2
2. Block diaglam
V
DD
Vss
A0
DECODER
A16
CS2
CS1
CONTROL
OE
WE
Pin No. Symbol
17 I/O4 Data Input/Output
18 I/O5 Data Input/Output
19 I/O6 Data Input/Output
20 I/O7
Data Input/Output
21 I/O8
Data Input/Output
22 CS1
Chip Select Inputs
23 A10
Address Input
24 OE
Output Enable Input
25 A11
Address Input
26 A9
Address Input
27 A8
Address Input
28 A13
Address Input
29 WE
Write Enable Input
30 CS2
Chip Select Inputs
31 A15
Address Input
32 VDD
Power Supply
Control input - output signal
CTL 1 CTL 2
L L
H L
L/H H
CORE
ARRAY
I/O1
DATA I/O
I/O8
Function
Output
VIN 1
VIN 2
VIN 3