Sony HCD-GZR888D Service Manual page 66

HCD-GZR888D/GZR999D
• IC Block Diagrams
IC701 BA6956AN (DRIVER Board)
IC712 BA6956AN (DRIVER Board)
TSD
1 2 3 4 5
IC103 S-24CS16A0I-J8T1G (DMB19 Board (1/4))
START/STOP
DETECT CIRCUIT
DEVICE
ADDRESS
COMPARATOR
A0 1
A1 2
A2 3
DIN
GND 4
IC105 TK11133CSCL-G (DMB19 Board (1/4))
IC107 TK11133CSCL-G (DMB19 Board (1/4))
IC801 TK11133CSCL-G (FRONT Board)
IC001 TK11118CSCL-G (LCD CTRL Board)
IC003 TK11118CSCL-G (LCD CTRL Board)
IC004 TK11133CSCL-G (LCD CTRL Board)
5
OVERHEAT &
OVERCURRENT
PROTECTION
CONTROL
CIRCUIT
BAND GAP
REFERENCE
1 2
HCD-GZR888D/GZR999D
CONTROL LOGIC
6 7 8 9
8 VCC
7 WE
6 SCL
5 SDA
HIGH VOLTAGE
SERIAL CLOCK GENERATOR
CONTROL CIRCUIT
LOAD
DATA
COMP
REGISTER
LOAD INC
EEPROM
R/W ADDRESS
COUNTER
Y DECODER SELECTOR
DATA OUTPUT/
ACK OUTPUT/
CONTROL CIRCUIAT
DOUT
4
3
IC111 MM1661JHBE (DMB19 Board (1/4))
1
VO
NC 2
CURRENT
GND 3 DRIVER
LIMITTER
4 REFERENCE
CN
IC201 FAN8036L (DMB19 Board (3/4))
48 47 46
1
IN1-
OUT1 2
IN2+ 3
IN2- 4
REG VCC REG VCC
OUT2 5
RES1 6
REG VCC REG VCC
FIN
(GND)
RES2 7
REGCTL 8
9
IN3+
IN3- 10
OUT3 11
IN4+ 12
13 14 15 16
66 66
8 VIN
BIAS
7 NC
THERMAL
SHUTDOWN
6 NC
5 CONT
FIN
(GND)
45 44 43 42 41 40 39
REG VCC
TSD
M
S
S
W
C
MUTE123 MUTE4 PS TSD_M
17 18 19 20 21 22
FIN
(GND)
38 37
36 DO1-
35
DO2+
34 DO2-
33 PGND1
32
REGO1
31 REGO2
FIN
(GND)
30 DO3+
29 DO3-
DO4+
28
27 DO4-
26 PGND2
25 DO5+
23 24