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MDX-C6400R/C6500R/C6500RX
2020
4-4. BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –
BU B+
RESET SIGNAL
GENERATOR
IC652
SIRCS BUFFER
Q704
REMOTE CONTROL
RECEIVER
IC951
BATTERY
DETECT
Q701
ACCESSORY CHECK
Q661
LEVEL SHIFT
Q706
6
8
4
CLK
ANT+B
TU8.7V
AMP+B
REGULATOR
IC671
COM8V
TU5.6V
5.6VON SW
8.7VON SW
STB
CLK IN
DATA OUT
DATA
2
RST
RESET
SWITCH
BUS ON
SWITCH
13
11
1
BUS ON
OUT
BUS
ON IN
12
9
DATA IN
SONY BUS INTERFACE
IC701
MASTER CONTROLLER
IC501 (3/3)
MD MECHANISM CONTROLLER
IC501 (2/2)
BUS ON SWITCH
Q705
BATT
BACK-UP B+
BUS ON
DATA
CLK
RESET
7
6
5
4
2
SIRCS
3
16
+B
ANT-R
AMP-R
6
5
CN701
BUS CONTROL IN
(FOR SONY BUS)
CN601 (2/2)
(POWER CONNECTOR)
REGULATOR
CONTROL SWITCH
Q633
FU601
COM +8V
(AUDIO CIRCUIT B+)
05
RST
3
BATT
BATTERY
SWITCH
10
BU IN
UNISI
50
UNISO
UNICKIO
MDMON
10
77
3
19
UNICKO
17
UNISI
18
UNISO
86
HSTX
11
24
SIRCS
90
65MD-ON
D301
D708
TH701
D702
D701
D662
LED810,
LSW810
LED810
(MD DISC SLOT)
VCC
TUNER +5.6V
RDS DECODER
(IC51) B+
TUNER +8.7V
VCC
7
7
ACC
REGULATOR
Q631
+12V
REGULATOR
Q361
+3.3V
REGULATOR
IC401, Q401
+5V
REGULATOR
Q362
B+ SWITCH
Q402, 403
+3.3V
D674
D673
BU B+
23
4
9
BU+B
5
10
11
8
6
TUNON
ILLON
82
7
1
PW ON
120
RSTX
SYSRST
20
UNICKI
BU-IN
BUS-ON
RESET
LINKOFF
BUIN
BUSON
ACC IN
29
DOORIND
48
61
60
30
49
46
DRIVER +5V
MOTOR/COIL DRIVER
(IC303) B+
LO- +12V
LOADING MOTOR
DRIVER (IC305) B+
REGULATOR
Q551
LCD B+
LCD DRIVER
(IC901) B+
REGULATOR
CONTROL SWITCH
Q363
REGULATOR
CONTROL SWITCH
Q250
BACK-UP B+
POWER AMP
(IC611) B+
SW503
RESET
D1
D2
PULL UP +5V
D676
U-COM +5V
D677
LED901-904,
LED910-915,
LSW901-917
LSW810
Z