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MDX-C8970
23
23
4-5.
BLOCK DIAGRAM – BUS CONTROL/POWER SUPPLY Section –
5V
5V
RESET SIGNAL
GENERATOR
IC506
REMOTE CONTROL
RECEIVER
IC910
SIRCS
BUFFER
Q275
RAM RESET
IC507
BATTERY
DETECT
Q271
ACCESSORY CHECK
Q441
LEVEL SHIFT
Q273
S703
6
8
4
CLK
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
IC271
MASTER CONTROLLER
IC500 (4/4)
MD MECHANISM CONTROLLER
IC501 (2/2)
BUS ON SWITCH
Q272
BATT
BATT B+
BUS ON
DATA
CLK
RESET
7
6
5
4
2
SIRCS
3
16
BATT
CN271
BUS CONTROL IN
(FOR SONY BUS)
CNP401 (2/2)
(POWER CONNECTOR)
ILLUMINATION
LINE DETECT
Q431
POWER
CONTROL SWITCH
Q882
REGULATOR
CONTROL SWITCH
Q423, 424
F1
05
RST
3
BATT
BATTERY
SWITCH
10
BU IN
UNISI
50 UNISO
UNICKIO
MDMON 10
77
7
22 UNICKO
20 UNISI
21 UNISO
86 HSTX
6
24 SIRCS
90
65
MD-ON
D204
TH271
D276
D275
D442
D431
VCC
7
ACC
14
ILL
+5V
REGULATOR
Q421, 422
+3.3V REGULATOR
IC404
+3.3V REGULATOR
IC401, Q401
SWITCHING
REGULATOR
Q883
SWITCHING
REGULATOR
Q884
+3.3V
REGULATOR
IC401, Q401
B+ SWITCH
Q801, 802
B+ SWITCH
Q881
B+ CHECK
IC421
B+ SWITCH
Q402, 403
B+ SWITCH
Q886,887
OSC SWITCH
Q890
+3.3V
D424
5V
DIG +3.3V
ANA +3.3V
DSP +5V
+5V
(CSV CIRCUIT B+)
(DSP CIRCUIT B+)
PULL UP +5V
FM-ON
TU-ON
FM-ON
TU-ON
POW-ON
BUS-ON
POW-ON
ILL-ON
61
SHIFT OUT 72
PWM IN 65
CSV ON 16
B+ SWITCH
Q402, 403
DSP ON 96
114
84
RESET
SYSRST
RAMBU
BU-IN
BUS-ON
RESET
LINKOFF
BU-IN
BUS-ON
ACC IN
85
ILL IN
ACC IN
ILL IN
48
61
60
30
49
46
LEVEL SHIFT
Q274
LIQUID CRYSTAL DISPLAY
DRIVE CONTROLLER
IC701 (2/2)
UNISI
97 UNISO
UNICKI
52
ILL-ON
BU-IN
BUS-ON
RESET
101
38
49
NMI (H)
82
81
98
35
G
(Page 21)
H
(Page 21)
RESET
5V
MOTOR/COIL DRIVER
(IC303) B+
LOAD +12V
LOADING MOTOR
DRIVER (IC305) B+
BATT B+
POWER AMP
(IC481) B+
RESET
D422
D403
TH461
TH462
OUT2
IN1
OUT1
POWER CONTROL
IC871
RT
IN2
VCC
9
ERROR
AMP
2
14
3
7
10
PWN
COMPARATOR
OUTPUT
CIRCUIT
ERROR
AMP
OSC
PWN
COMPARATOR
OUTPUT
CIRCUIT
Q183
LEVEL SHIFT
IC702
Q181
TU +5V
(TUNER CIRCUIT B+)
FM +8V
(FM CIRCUIT B+)
AM +8V
(AM CIRCUIT B+)
TU +8V
(TUNER CIRCUIT B+)
+8V
REGULATOR
IC403
+5V
REGULATOR
Q185
B+ SWITCH
Q182
B+ SWITCH
Q180
+5V
(MIC AMP CIRCUIT B+)
AUDIO +8.5V
(AUDIO CIRCUIT B+)
+8.5V
REGULATOR
IC402
+5V
REGULATOR
Q841
BUS-ON
TU-ON
B+ SWITCH
Q253, 256
LCD +10V
LCD DRIVER (IC900, 920)/
ILLUMINATION LED B+
ANT REM
AMP REM
6
5
AMP REMOTE
SWITCH
Q461(1/2), 462(1/2)
ANTENNA REMOTE
SWITCH
Q461(2/2), 462(2/2)
POW-ON
Содержание MDX-C8970
Страница 4: ...4 SECTION 1 GENERAL This section is extracted from instruction manual ...
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Страница 40: ...MDX C8970 40 40 4 21 PRINTED WIRING BOARD RELAY Board See page 24 for Circuit Boards Location Page 38 Page 29 ...
Страница 41: ...41 MDX C8970 4 22 SCHEMATIC DIAGRAM RELAY Board Page 39 Page 33 ...