Read Sony HCD-FR1K / HCD-FR8 / HCD-FR9 (serv.man2) Service Manual online
23
HCD-FR1/FR8/FR9
– DMB08 Board –
IC203 BR9040F-WE2
1
2
3
4
INSTRUCTION DECODE
CONTROL AND CLOCK
GENERATOR
ADDRESS
BUFFER
INSTRUCTION
REGISTER
DATA
REGISTER
4,096bit
EEPROM
R/W
AMPS
HIGH
VOLTAGE
GENERATOR
R/B
VCC
CS
SK
16bit
8bit
16bit
8 WC
7
6
5
GND
DO
DI
WRITE
DISABLE
DETECT
SUPPLY
VOLTAGE
8bit
ADDRESS
DECODER
DECODER
IC302 BR24L16F-WE2
8
VCC
7
WP
6
SCL
5
SDA
1 A0
2 A1
3 A2
4 GND
ADDRESS
DECODER
DECODER
SLAVE WORD
ADDRESS REGISTER
DATA
REGISTER
16 K bit EEPROM ARRAY
CONTROL CIRCUIT
POWER SUPPLY
VOLTAGE DETECTION
HIGHT VOLTAGE
GENERATOR
11 bit
8 bit
11 bit
STOP
START
ACK
IC215 SN74ALVCH16841DGGR
1
1OE
56 1LE
LE
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
LATCH
LATCH
28
2OE
29 2LE
OE
LE
OE
1D1
1D2
GND
1D3
1D4
VCC
1D5
1D6
1D7
GND
1D8
1D9
1D10
2D1
2D2
2D3
GND
2D4
2D5
2D6
VCC
2D7
2D8
GND
2D9
2D10
1Q1
1Q2
GND
1Q3
1Q4
VCC
1Q5
1Q6
1Q7
GND
1Q8
1Q9
1Q10
2Q1
2Q2
2Q3
GND
2Q4
2Q5
2Q6
VCC
2Q7
2Q8
GND
2Q9
2Q10
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
•
IC Block Diagrams
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