IC8 : TC51832ASPL-10
32768-word x 8 bit High Speed Pseudo Static RAM
Ao
ADDRESS
LATCH
CONTROL
ROW
DECODER
MEMORY MATRIX
(256 x 128) x 8
A7
1/00
1/07
CE~l+----.rTIr®~~~1---------~
OE
O-----+-----~~~~~
WEQ-------
Other ICs
• IC7 : YSS223--.See page 14
35
IC451 : BU2090
Serial In/Parallel Out Driver
No.
Name
Function
1
VSS
GND
2
DTB
Data in
3
CKB
Clock in
4
TMT
Tuner mute out
5
VIB
Video selector B (LA7956)
6
VIA
Video selector A (LA7956)
7
VIND
Volume indicator
8
CES
Chip enable M35010
9
STEQ
IF request
10
CE7000
Chip enable lM7000
11
IMONO
Force Mono out
12
CEl2
ChiD enable lC7535
(FRONT)
13
CEl
Chip enable lC78213/lC7535/lC78213
14
CET
Chip enable TC9273N
15
ICRS
Reset out YSS223
16
VDD
+5V
Содержание RX-V990
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Страница 61: ...1 A B I c RX V990 SCHEMATIC DIAGRAM MAIN I I I 2 3 I I I I l I MAIN L I co C 0 4 I l I 5 I I I l ...
Страница 79: ...A c B D 1 2 3 4 5 6 RX V990 EXPLODED VIEW o v 50 ...
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