MDX-C8900R
– 33 –
– 34 –
4-3.
BLOCK DIAGRAM – MAIN Section –
DATA BUS
ADDRESS BUS
DATA BUS
ADDRESS BUS
104 LOCK
109 MD-ATT
67
VOLCKO/SUBCKO
66
VOLSO/SUBSO
68
SUBCE
64
VOLCE
20 CSV-SI
21 CSV-SO
23 CSV-CE
117 CSV-NAR
9
CSV-RST
22
36
38
37
35
39
CSV-CKO
CLK
DATA
SUBCE
VOLCE
62
SUB-SW0
D0 – D7
D0 – D7
D0 – D7
A0 – A18
A0 – A15
61
SUB-SW1
65
ATT
POWON
79
TEL-ATT
58
118
120
LED-ON
LOW-PASS
FILTER
IC100
05
• SIGNAL PATH
: MD PLAY
: FM
: AM
C
(Page 30)
LOCK,
MD-ATT
H
(Page 38)
LED-ON
STB
I
(Page 37)
G
(Page 38)
RESET
CSV
D
(Page 31)
MASTER CONTROLLER
IC500 (2/4)
MIC AMP
IC905 (1/3)
BUFFER
IC905 (2/3)
BUFFER
IC904
B+ SWITCH
Q533, 534
BUFFER
IC905 (3/3)
NOISE
SHAPER
INPUT
INTERFACE
D/A
CONVERTER
MODE
CONTROL
CLK
CONTROL
DIGITAL FILTER,
D/A CONVERTER
IC101
CSV
IC901
FLASH
MEMORY
IC902
PROGRAM
ROM
IC903
12
9
VOUTL
VOUTR
DAC
P01
P03
P00
P02
P04
20
19
XI1
X901
14.3MHz
XO1
R-CH
BATTERY OFF
MUTE DRIVER
Q400
MUTING
CONTROL SWITCH
Q401
MUTING
CONTROL SWITCH
Q402
RESET SWITCH ON
MUTING DRIVER
Q535
MUTING
CONTROL SWITCH
Q403
6
5
4
1
15
51
48
28
26
45
11
17 16
DATA
BCK
LRCK
XTI
RSTB
AN0
50 AN1
27 P14
A-1
A0
A1 – A19
A0 – A15
D0 – D7
D0 – D7
D0 – D7
45
32 P07
33 P06
DM1
DM0
BCK
DADT
LRCK
FS256
A
(Page 30)
DADT,
BCK,
LRCK,
FS256
B
(Page 33)
E
(Page 32)
F
(Page 32)
EMPHASIS
DIGITAL
FILTER
RESET,
EMPHASIS
FM
AM/TIR
RESET
COM +8V
BATT B+
D406
D407
D402
D403
CN602 (2/2)
FRONT AUDIO OUT
(L)
(R)
CN601 (1/2)
REAR AUDIO OUT
(L)
(R)
CN601 (2/2)
SUB WOOFER OUT
(L)
(R)
MUTING
Q200
MUTING
Q300
MUTING
Q201
MUTING
Q301
FL+
1
11
14
9
7
OUT1+
OUT1–
21
23
OUT4+
OUT4–
IN1
IN4
12
5
3
OUT2+
OUT2–
IN2
15
22
17
19
OUT3+
OUT3–
IN3
MUTE
4
STBY
LEVEL SHIFT
Q509
CNP500 (1/2)
(POWER CONNECTOR)
POWER AMP
IC600
FL–
9
FR+
4
FR–
12
RL+
2
RL–
10
RR+
3
RR–
11
TEST MODE
15
TEL-ATT
13
MUTING
Q204
MUTING
Q305
MUTING
Q304
MUTING
Q205
AUX-IN-L
MD-IN-L
FM-IN-L
AM-IN-L
41
42
40
39
VOLUME
CONTROL
CIRCUIT
LOUDNESS
CONTROL
CIRCUIT
INPUT
SELECTOR
31
VR1
IN
VOUT1
33
32
INAO1
(L)
(R)
R-CH
R-CH
INPUT SELECT,
ELECTRICAL VOLUME
IC400 (1/2)
CN602 (1/2)
BUS
AUDIO IN
TESTIN
TONE
CONTROL
CIRCUIT
30
26
TIN1
TCO1
BUFFER
IC401
CENTER VOLTAGE
GENERATOR (FOR BIAS)
IC402
LINE
DRIVER
IC200
FADER
CONTROL
CIRCUIT
25
17
FDIN1
SHIFT
REGISTER &
LATCH
23
24
FNTO1
R-CH
R-CH
VCT
REO1
16 21 22
DATA
CLK
CE
CLK
DATA
VOLCE
R-CH
ELECTRICAL
VOLUME
IC400 (2/2)
COM +8V
BUFFER
IC404
49 VRSW
SUB CUT
SWITCH
Q206, 207
R-CH
D+5V
5V
R-CH
21
RST
VOLUME
CONTROL
CIRCUIT
20
17
INP1
BUFFER
16
VRIN1
INAO1
15
OUT1
ZC
DET
R-CH
ELECTRICAL VOLUME
(FOR SUBWOOFER)
IC403
SHIFT
REGISTER &
LATCH
8 9 7
DATA
CLK
CE
CLK
DATA
SUBCE
MUTING
Q202
MUTING
Q203
29, 31, 33, 35, 38, 40, 42, 44
64 –
5
7
25 – 18, 8 – 1, 48, 17, 16
21 – 23, 25 – 29
OE
CE
WE
32
6
10
OE
A16
A17
RESET
WRD
42
RDC
P15
44
RDD
A0 – A15
A16
IC908 (1/2)
IC908 (2/2)
A17
A0 – A15
18 – 11, 8 – 1
P10 – P13
31 – 28
A16 – A19
12
CNJ501
MIC
7
2
1
3
5
6
IC906
4
1
2
IC907
4
1
2
20 – 13, 3, 2, 31
1, 12, 4, 5, 11
26
Содержание MDX-C8900R
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Страница 34: ...SUB TRANSLATION board SENSOR board AUDIO board KEY board MAIN board SERVO board Circuit Boards Location 39 ...
Страница 51: ... 71 MDX C8900R 4 22 SCHEMATIC DIAGRAM RELAY Section Page 60 Page 67 ...