Sony HCD-EA20 Service Manual page 63

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3 7 63 1515 0
– I/O BOARD –
TE
L 13942296513
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VCC
8
11 bit
TEST 7
ADDRESS
DECODER
SCL
6
CONTROL CIRCUIT
HIGHT VOLTAGE
SDA 5
GENERATOR
IC101,111 NJM4580E(TE2)
A OUT
A –IN
A +IN
V–
IN1A GND1 IN2B
16 15 14
L Bias Type
H
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i
1 2 3
IN1B CTL1 OUT1
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2 9
8
IC903 BR24L16F-WE2
16 K bit EEPROM ARRAY
SLAVE WORD
11 bit
ADDRESS REGISTER
START STOP
ACK
POWER SUPPLY
VOLTAGE DETECTION
Q Q
3 6 7 1 3
V+
1 8
2 7 B OUT
A
B
3 6 B –IN
B +IN
4 5
IC106 NJM2285V-TE2
VDD CTL2 IN2A
13 12 11
H L
Clamp Type
.
4 5 6
GND2 OUT2 OUT3
9 4 2 8
1 A0
8 bit
2 A1
DATA
REGISTER
3 A2
4 GND
1 5 0 5 8 2 9 9 4
GND3 IN3B
10 9
Clamp Type
H
m
L
co
7 8
CTL3 IN3A
HCD-EA20
9 9
2 8 9 9
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