Block Diagram - Bus Control/Power Supply Section - Sony MDX-CA580 Service Manual

MDX-CA580
4-4. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –
CN701
BUS CONTROL IN
(FOR SONY BUS)
3
SIRCS
2
RESET
5
DATA
4
CLK
BUS ON SWITCH
Q705
6
BUS ON
7
BATT
TH701
BACK-UP B+
05
REMOTE CONTROL
RECEIVER
IC951
D708
SIRCS BUFFER
Q704
RESET SIGNAL
BU B+
GENERATOR
IC652
SW503
RESET
SONY BUS INTERFACE
IC701
RST RST
RESET
2 13
SWITCH
DATA
DATA IN
6 9
DATA OUT
8
CLK CLK IN
4 11
BUS ON
BUS
OUT
ON IN
BUS ON
1 12
SWITCH
BATT BU IN
BATTERY
3 10
SWITCH
D702
D701
BATTERY
DETECT
Q701
LEVEL SHIFT
Q706
MASTER CONTROLLER
IC501 (3/3)
24 SIRCS
90 RSTX
86 HSTX
D301
11 SYSRST
18 UNISO
17 UNISI
19 UNICKO
20 UNICKI
3 BUSON
PW ON 120
TUNON 1
77 BUIN
ILLON 7
ACC IN 82
DOORIND 29
MD MECHANISM CONTROLLER
IC501 (2/2)
60 BU-IN MD-ON 65
61 BUS-ON
MDMON 10
30 RESET
49 UNISI
48 UNICKIO
50 UNISO
46 LINKOFF
20 20
6 AMP+B
8 ANT+B
REGULATOR
IC671
TUNER +8.7V
11 TU8.7V
VCC 7
D2
TUNER +5.6V 10 TU5.6V
RDS DECODER
(IC51) B+
COM +8V
9 COM8V
(AUDIO CIRCUIT B+)
D1
BU B+ BU+B
5
D676
PULL UP +5V
D677
4 3 2
U-COM +5V
LCD B+
LCD DRIVER
(IC901) B+
LED901 – 904,
LED910 – 913,
LSW901 – 917
REGULATOR
CONTROL SWITCH
Q633
ACCESSORY CHECK
Q661
LED810
(MD DISC SLOT)
LED810,
LSW810 LSW810
Z
LO +12V
LOADING MOTOR
DRIVER (IC305) B+
B+ SWITCH
Q402, 403
REGULATOR
CONTROL SWITCH
Q363
DRIVER +5V
MOTOR/COIL DRIVER
(IC303) B+
+3.3V
+3.3V
REGULATOR
IC401, Q401
REGULATOR
CONTROL SWITCH
Q250
CN601 (2/2)
(POWER)
D673
6
ANT-R
D674
AMP-R
5
BACK-UP B+
POWER AMP
(IC611) B+
FU601
16
REGULATOR
+B
Q631
D662
7
ACC
REGULATOR
Q551
+12V
REGULATOR
Q361
+5V
REGULATOR
Q362