Sony AVD-S50 Service Manual page 75

IC302 BR24C08F-E2 (DVD Board)
2048bit EEPROM ARRAY
8bit
ADDRESS
DECODER
A0 1
A1 2
CONTROL CIRCUIT
A2
3
GND 4
HIGH–VOLTAGE POWER SUPPLY
GENERATOR VOLTAGE DETECTOR
IC303 SM8707GV (DVD Board)
1
VDD1
VSS1
2
MO1 3
4
NC
VDD2 5
6
VSS2
XTI 7
8
XTO
IC203 BR9040F (DVD Board)
8
1
SLAVE/ WORD DATA
ADDRESS REGISTER REGISTER
8
7
6
5
ACK
REFERENCE PHASE
DIVIDER 0 DETECTOR 0
LOOP
DIVIDER 0
REFERENCE PHASE
DIVIDER 1 DETECTOR 1
LOOP
DIVIDER1
X'TAL
OSC
7
4096bit
EEPROM ARRAY
ADDRESS R/W HIGH VOLTAGE
DECODER AMP GENERATOR
ADDRESS DATA
BUFFER REGISTER
2
IC803 TC7W74FU
8
Vcc
C
TEST
1
SCL
SDA
CHARGE
LPF 0 VCO 0
PUMP 0
CHARGE
LPF 1 VCO 1
PUMP 1
6 5
COMMAND
REGISTER
WRITE
DISABLE
POWER
SUPPLY
VOLTAGE
DETECTOR
COMMAND DECODE
CONTROL CLOCK
GENERATION
3 4
AVD-S50/S50ES
(DVD Board)
7 6 5
S R Q
D Q
2 3 4
NC
16
15 SO2
14 FSEL
13 SO3
CONTROL
LOGIC
12 VDD3
11 VSS3
10 SO2
9
SO1
75