MDX-C8970
21
21
4-3.
BLOCK DIAGRAM – MAIN Section –
DATA BUS
ADDRESS BUS
DATA BUS
ADDRESS BUS
81 EMPH
57
VOL-DATA-R
56
VOL-DATA-L
55
VOL-LOAD
58
VOL-CLK
111 CSV-CE
110 CSV-REQ
112 CSV-RST
27
37
35
39
CSV-CK
DAT-R
DAT-L
LOD
CLK
D0 – D7
D0 – D7
D0 – D7
A0 – A18
A0 – A15
36
MUTE
POWON
83
TEL-MUTE
80
98
62
AMP-STBY
05
B
(Page 19)
EMPHASIS
POW-ON
H
(Page 23)
G
(Page 23)
RESET
MASTER CONTROLLER
IC500 (2/4)
MIC AMP
IC841 (1/3)
BUFFER
IC841 (2/3)
BUFFER
IC843 (1/2)
BUFFER
IC841 (3/3)
CSV
IC801
FLASH
MEMORY
IC805
PROGRAM
ROM
IC803
DAC
25 CSV-SI
38
DO
CLK
CE
REQ
20
19
XI1
X801
14.318MHz
XO1
BATTERY OFF
MUTE DRIVER
Q472
MUTING
CONTROL SWITCH
Q473
MUTING
CONTROL SWITCH
Q471
RESET SWITCH ON
MUTING DRIVER
Q501
MUTING
CONTROL SWITCH
Q474
I
(Page 22)
TEL 5V
51
48
28
26
45
11
AN0
50 AN1
27
A-1
A0
A1 – A19
A0 – A19
D0 – D7
D0 – D7
D0 – D7
45
32 P07
33 P06
AUDIO +8.5V
BATT B+
D472
D527
D471
D491
CNP601 (2/2)
FRONT
LINE OUT
REAR
LINE OUT
CN291
SUB OUT
(L)
(R)
MUTING
Q601
MUTING
Q602
MUTING
Q631
MUTING
Q632
FL+
1
12
14
5
3
OUT2+
OUT2–
21
23
OUT4+
OUT4–
IN2
IN4
11
9
7
OUT1+
OUT1–
IN1
15
22
17
19
OUT3+
OUT3–
IN3
MUTE
4
STBY
LEVEL SHIFT
Q451
CNP401 (1/2)
(POWER CONNECTOR)
POWER AMP
IC481
FL–
9
FR+
4
FR–
12
RL+
2
RL–
10
RR+
3
RR–
11
TEST MODE
15
TEL-ATT
13
TEST
LINE
DRIVER
IC604
R-CH
R-CH
BUFFER
IC663
41
40
XTLI38
X300
16.9344MHz
XTLO38
26 CSV-SO
36
DI
21
RST
R-CH
MUTING
Q661
MUTING
Q662
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
7
6
OE
A17
A18
RESET
WRD
FCE
42
RDC
44
RDD
ROMCONT
A0 – A15
A16
A18
A0 – A19
18 – 11, 8 – 1, 31-28
5, 1, 17
12
CNJ252
MIC
6
4
5
10
A16
A17
11
12
13
8
9
10
SWITCHING
IC802
3
2
1
SWITCHING
IC804
4
1
2
20 – 13, 3, 2, 31
1, 12, 4, 5, 11
26
F
(Page 22)
DSPCK,
SA DATA
LOW-PASS
FILTER
IC601
LOW-PASS
FILTER
IC661 (1/2)
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER,
D/A CONVERTER
IC300
27
29
AOUTL1
AOUTR1
54
52
AOUTR3
AOUTL3
R-CH
R-CH
R-CH
75
71
76
81
60
61
SI1
BCK
LRCK
PLCLK
35 LIN
46 RIN
77 XMST
82
REDY
TRDT
63
RVDT
59
SCK
62
57
XRST
8
9
SEL0
SEL1
XMST
DSPSTP
TRDT
XLAT
REDY
DSPRST
SCK
RVDT
SEL0
SEL1
XMST
DSPSTP
TRDT
XLAT
REDY
DSPRST
SA DATA
DSPCK
SCK
RVDT
BCK
DADT
LRCK
5
9
2
6
8
3
4
10
1
512FS
A
(Page 19)
DADT,
BCK,
LRCK,
512FS
D
(Page 20)
E
(Page 20)
FM
AM/TIR
AUX-IN-L
FM-IN-L
AM-IN-L
20
18
16
INPUT
SELECTOR
14
L
R
L
R
L
R
R-CH
R-CH
R-CH
INPUT SELECT
IC771
CNP601 (1/2)
BUS
AUDIO IN
BUFFER
IC603
RESISTIVE
NETWORK &
TAP SWITCHES
4
IN1
2
IN2
GND 1-3
SHIFT
REGISTER &
LATCH
20
6
OUT1
OUT2
11 9 10
D-IN
CLK
CLK
DAT-L
LOD
ELECTRICAL
VOLUME
IC602
CSV MIX SWITCH
IC691
Q691
1
2
7
LEVEL SHIFT
IC351 (1/2)
LEVEL SHIFT
IC351 (2/2)
12
11
CKSTP
XLAT
28
79 DSP-REDY
59
18 DSP-SO
19 DSPCK
17 DSP-SI
9
30
37 AUDIO SEL0
11
40 AUDIO SEL1
DSPSTP
DSP-XMST
CSV-PLAY
DSP-XLAT
DSP-RST
R-CH
R-CH
R-CH
R-CH
43
AOUTR2
FL-OUT
RL-OUT
FR-OUT
RR-OUT
SUB-OUT
5, 1, 17
RESISTIVE
NETWORK &
TAP SWITCHES
2
IN2
18
IN3
GND 1-3
SHIFT
REGISTER &
LATCH
16
20
OUT2
4
IN1
6
OUT1
OUT3
11 9 10
D-IN
CLK
CLK
DAT-R
LOD
ELECTRICAL
VOLUME
IC632
CENTER VOLTAGE
GENERATOR
(FOR BIAS)
IC661 (2/2)
AUDIO +8.5V
R-CH
R-CH
L/S
L/S
• SIGNAL PATH
: MD PLAY
: FM
: AM
REFERENCE VOLTAGE
GENERATOR (FOR BIAS)
IC843 (2/2)
+5V
Summary of Contents for MDX-C8970
Page 4: ...4 SECTION 1 GENERAL This section is extracted from instruction manual ...
Page 5: ...5 ...
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Page 41: ...41 MDX C8970 4 22 SCHEMATIC DIAGRAM RELAY Board Page 39 Page 33 ...