Dvd Board - Sony AVD-S50 Service Manual

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

(DVD Board)

8 7 6 5
S R Q
C D Q
1 2 3 4
16 NC
VCO 0 SO2
15
14 FSEL
SO3
13
CONTROL
LOGIC
VCO 1
12 VDD3
11 VSS3
10 SO2
9
SO1
75