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5-3.
BLOCK DIAGRAM – MAIN Section –
LEVEL SHIFT
IC803 (1/2)
DADT
9
8
10
LRCK
2
3
1
DADT,
BCK
5
6
BCK,
LRCK,
4
512FS
512FS
A
(Page 19)
CN302 (1/2)
L
BUS
INPUT SELECT, FM MPX
AUDIO IN
IC301 (1/2)
R
R-CH
SEL
1
AM
AM
E
11
(Page 20)
AM IF
AMIF
F
AM/FM
12
NOISE
(Page 20)
BLANKER
MPX
MPX
D
13
L.P.F.
(Page 20)
PLL
DIGITAL
CONTROL
IIC BUS
20
21
DATA, CLOCK
H
(Page 20)
QUALITY
I
(Page 20)
SMETER
G
(Page 20)
DSPDATA, DSPCKO
J
(Page 22)
EMPHASIS
B
(Page 19)
05
DIGITAL SIGNAL PROCESSOR,
ANALOG +8V
71
SI1
DIGITAL FILTER,
D/A CONVERTER
FL-OUT
27
76
IC805
AOUTL1
LRCK
RL-OUT
AOUTR1
29
75
BCK
FR-OUT
54
AOUTR3
RR-OUT
81
PLCLK
AOUTL3
52
IC806
SUB-OUT
AOUTR2
43
XTLI38
41
35 LIN
X801
R-CH
46 RIN
16.9344MHz
XTLO38
40
77 XMST
12
11
82
XECKSTP
LEVEL SHIFT
61
63 59 62
60
57
IC803 (2/2)
ACOUTL
LOUDNESS/
SOFT
TONE
38
VOLUME
MUTE
CONTROL
TO
OUTPUT
MUTE
LOUDNESS
SELECTOR
DEMODULATOR
PILOT
+STEREO ADJUST
L.P.F.
S & H
HIGH-CUT
CANCELATION
+STEREO BLEND
PILOT
DET
D/A
CONVERTER
MULTIPATH
QUAL
DETECTOR
18
16
15
14
(MDX-C8500X)
CENTER VOLTAGE
ELECTRICAL VOLUME
GENERATOR
IC301 (2/2)
R-CH
(FOR BIAS)
IC809 (2/2)
ACINLF
LOW-PASS
34
FILTER
MONO FADER
ACINLR
33
IC807
R-CH
SUBWOOFER
R-CH
+PHASE CONTROL
LOW-PASS
FILTER
35
SWINR
IC809 (1/2)
BATT B+
XMST
29
DSPMST
DSPPLL
28
DSPPLL
TRDT
25 DSPSI
RVDT
26 DSPSO
SCK
27 DSPCKO
XLAT
35
DSPLAT
REDY
78 DSPREADY
DSPRST
36
DSPRST
DSPDATA
DSPCKO
SM
18
31
VOLATT
MASTER CONTROLLER
IC502 (2/4)
R-CH
DATA
70 I2C SDA
CLOCK
71 I2C SCL
97 EMPH
21
21
(MDX-C8500R)
OUTLF
LINE
30
MIXER
DRIVER
OUTLR
29
IC303
(MDX-C8500X)
OUTSWR
MONO
R-CH
25
FADER
R-CH
D352
(MDX-C8500R)
BATTERY OFF
MUTE DRIVER
Q352
LINE
DRIVER
IC304
(MDX-C8500X)
R-CH
MUTING
5
CONTROL SWTICH
ATT
Q354, 355
D354
MUTING
CONTROL SWITCH
Q353
TESTIN
84
LEVEL SHIFT
TELATT
96
Q111
AMPON
55
MDX-C8500R/C8500X
CN302 (2/2)
L
AUDIO
MUTING
OUT FRONT
Q356
R
MUTING
Q357
L
AUDIO
MUTING
OUT REAR
Q358
R
MUTING
Q359
(L)
MUTING
Q360
(R)
CN301
MUTING
SUB OUT
Q361
CN101 (1/2)
POWER AMP
(POWER CONNECTOR)
IC351
1
5
OUT2+
FL+
12
IN2
9
OUT2–
3
FL–
4
21
FR+
OUT4+
14
IN4
12
OUT4–
23
FR–
2
OUT1+
9
RL+
11
IN1
10
OUT1–
7
RL–
3
OUT3+
17
RR+
15
IN3
11
OUT3–
19
RR–
22 MUTE
4
15
TEST
13
TEL-ATT
D353
MD-ATT
C
(Page 19)
AMPON
K
(Page 23)
• SIGNAL PATH
: MD PLAY
: FM
: AM (MW/LW)
: BUS AUDIO IN
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