MPEG-01B BLOCK DIAGRAM
8-3
ES3883
Video CD
Companion
ES3880
Video CD
Processor
OP Amp
NJM4560M
2M ROM
AT27C020
+5V
+5V
+5V
+12V
Left
Right
AGND
AGND
From
Karaoke
Board
To Video-out
Board
RS OUT
To Front Microprocessor
via Servo Board
DRAM
MSM514265E
+3.5V
DSA
- DSA_ACK
- DSA_DAT
- DSA_STB
I
2
S
- SCLK
- WCLK
- DATA
- SDA
- SICL
- SILD
- RAB
- CD10_RST
MPEG-01B
Conn.
1601
To / From
Servo Board
Conn.
1602
Conn.
1603
Conn.
1601
Conn.
1601
From SAA7324H
on Servo Board
DRST
Conn.
1601
+5V
CPU
8-Bit Microcontroller
(IC 7212)
- DSA_A
- DSA_D
- DSA_S
To / From
SAA7324H
on Servo Board
MIC_IN
MIC_DET
Video-out
8-BIT MICROCONTROLLER (IC 7212) INTERNAL BLOCK
8-3
P0-0
P0-1
P0-2
P0-3
P0-4
P0-5
P0-6
P0-7
5
7
8
9
10
11
12
13
18
19
20
21
22
23
24
25
P0
P1
P3
P2
37
36
35
34
33
32
31
30
P1-0
P1-1
P1-2
P1-3
P1-4
P1-5
P1-6
P1-7
P2-0
P2-1
P2-2
P2-3
P2-4
P2-5
P2-6
P2-7
P3-0
P3-1
P3-2
P3-3
P3-4
P3-5
P3-6
P3-7
CPU
VDD
VSS
RST
PSEN
ALE
EA
XTAL1
XTAL2
NC1
NC2
NC3
NC4
4
26
27
29
15
14
6
17
28
39
38
16
40
41
42
43
44
1
2
3
