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MPEG-01B BLOCK DIAGRAM
To Front Microprocessor
via Servo Board
Conn.
MPEG-01B
1601
DRAM
MSM514265E
2
I
S
- SCLK
- WCLK
ES3880
From SAA7324H
- DATA
Video CD
on Servo Board
Conn.
Processor
1601
+5V
2M ROM
AT27C020
- DSA_A
- DSA_D
- DSA_S
Conn.
To / From
CPU
1601
8-Bit Microcontroller
SAA7324H
- SDA
(IC 7212)
on Servo Board
- SICL
- SILD
- RAB
- CD10_RST
8-3
DSA
- DSA_ACK
- DSA_DAT
- DSA_STB
+5V
+5V
+3.5V
MIC_IN
MIC_DET
ES3883
Conn.
RS OUT
Video CD
1602
Companion
Video-out
Conn.
1603
+12V
OP Amp
Left
NJM4560M
AGND
Right
+5V
AGND
Conn.
1601
DRST
8-BIT MICROCONTROLLER (IC 7212) INTERNAL BLOCK
P2-0
18
P2-1
19
P2-2
20
P2-3
21
P2
P2-4
22
P2-5
23
From
P2-6
24
Karaoke
P2-7
Board
25
To Video-out
Board
P3-0
5
P3-1
7
P3-2
8
P3-3
9
P3
P3-4
10
P3-5
11
To / From
P3-6
12
Servo Board
P3-7
13
8-3
16
38
VSS
VDD
P0
CPU
P1
P0-0
37
P0-1
36
P0-2
35
P0-3
34
P0-4
33
P0-5
32
P0-6
31
P0-7
30
P1-0
40
P1-1
41
P1-2
42
P1-3
43
P1-4
44
P1-5
1
P1-6
2
P1-7
3
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