Block Diagram - Bus Control/Power Supply Section - Sony MDX-C8900R Service Manual

MDX-C8900R
4-5. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –
Q Q
3 7 6 3 1 5 1 5 0
RESET
I
(Page 34)
3
SIRCS
RESET SIGNAL
BACKUP +5V GENERATOR
IC505
SW701
RESET
SONY BUS INTERFACE
IC504
2
RST RST
RESET
RESET 2 13
SWITCH
5 DATA
DATA IN
DATA 6
DATA OUT
4
CLK CLK IN
CLK 4 11
BUS ON SWITCH
BUS ON
Q520 BUS
6
OUT
ON IN
BUS ON
BUS ON 1 12
SWITCH
7
BATT BU IN
BATTERY
BATT 3 10
SWITCH
CN501
BUS CONTROL IN D538
F500
(FOR SONY BUS)
D524
BATTERY
BATT B+ DETECT
Q516
T E
L 1 3 9 4 2 2 9 6 5 1 3
w w w
05
BACKUP +5V MASTER CONTROLLER
IC500 (4/4)
REMOTE CONTROL
RAM RESET
RECEIVER 55
RAMBU
IC503
IC901
SIRCS
BUFFER 24 SIRCS
Q522
90 RESET
86 HSTX
D502
11 SYSRST
9 18 UNISO
8 17 UNISI
19 UNICKIO
10
BUS-ON
77 BU-IN
MD MECHANISM CONTROLLER
IC501 (2/2)
60 BU-IN
61 BUS-ON
30 RESET
49 UNISI
48 UNICKI
LEVEL SHIFT
50 UNISO
Q521
46
LINKOFF
x a o
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– 37 –
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+5V
+5V
REGULATOR
(TUNER CIRCUIT B+)
Q2
SW500
(POWER SELECT)
POWSEL 56
+9V
REGULATOR
(FOR VT)
B (ON)
TUNER B+
(FM CIRCUIT B+)
A (OFF)
D6
(AM CIRCUIT B+)
COM +8V
(AUDIO CIRCUIT B+)
+5V
REGULATOR
(MIC AMP CIRCUIT B+)
FM-ON 6
TU-ON 7
BACKUP +5V
T501
INVERTER
EL900
(FOR BACK LIGHT)
Q Q
DIMMER 30
3 7 6
ILL-ON 29
DOOR-IND 59
LCD DRIVER (IC900)/
ACC IN 81
ILLUMINATION LED B+
ILL IN 78
REGULATOR
CONTROL SWITCH
Q505
(ILLUMINATION LED B+)
REGULATOR
CONTROL SWITCH
Q501
LOAD +12V
LOADING MOTOR
DRIVER (IC305) B+
MD-ON 65
REGULATOR
MDMON 10 CONTROL SWITCH
Q103
+3.3V
ACCESSORY CHECK
u 1 6 3 Q517
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STB
2 4
8 9 9
(POWER CONNECTOR)
AMP REMOTE
SWITCH
Q527, 528
6 AMP+B
+9V
BATT B+
8 ANT+B
POWER AMP
Q3
(IC600) B+
REGULATOR
IC506
FM B+
11 FM8V VCC 7
AM B+
10 AM8V
9 COM8V
+5V
3 2
4
Q901
D527, 529, 546 F1
+5.6V
REGULATOR
Q524, 525
OSC REGULATOR B+ SWITCH
Q510 IC501, Q513 Q518, 519
OSC OFF
SWITCH
Q532
DIMMER
CONTROL SWITCH
3 1 5 1 5 0 8 9
Q511, 512, 514
LCD +10V
+10V
REGULATOR
Q506
P-ON +10V
B+ SWITCH
Q507, 508
+10V
LED702, 703
REGULATOR
(FOR ILLUMINATION)
Q502
+12V
B+ SWITCH
REGULATOR
Q402, 403
Q102
DRIVER +5V
MOTOR/COIL DRIVER
(IC303) B+
+3.3V DC/DC
B+ SWITCH
REGULATOR CONVERTER
Q100
IC401, Q401 IC101
Q101
m
D526
c o
D523
ILLUMINATION
LINE DETECT
.
Q515
LED-ON
DOOR SW
– 38 –
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(Page 34)
2
8 9 9
CNP500 (2/2)
6
ANT REM
AMP REM
5
16
BATT
2 4 9 8 2 9 9
7
ACC
14
ILL
H (Page 38)
J (Page 36)