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MDX-C8500R/C8500X
5-2.
BLOCK DIAGRAM – TUNER Section –
FM/AM TUNER UNIT
TUX201
CN102
(FM/AM ANTENNA)
2 FM-ANT
1
AM-ANT
05
11
5
16
17
18
4
14
9
(MDX-C8500R)
RDS DECODER
IC201
SC
57 kHz
OUT
CIN
16
BAND-PASS
18
19
MPX
FILTER
MULTI
LVIN
20
PATH
2
DETECTOR
10
11
51
53
52
B/U +5V
TUNER VCC
TUNER +5V
MPX
10
AMDET
8
12 13
19
5
SIGNAL
QUALITY
DECODER
4
SDA
RDS/RDBS
IIC BUS
9
CLOCKED
INTERFACE
DEMODULATOR
SLAVE
SCL
COMPARATOR
REGISTER
10
& DECODER
TRANSCEIVER
OSCILLATOR
& CLOCK
5
4
8
X101
4.332MHz
75
MASTER CONTROLLER
IC502 (1/4)
20
20
MUTING
Q202
MUTING
Q205
MUTING
CONTROL SWITCH
Q206, 207
D202
BUFFER
Q209
BAND-PASS
FILTER
IC202
Q208
NOISE DET
DISCHARGE
SWITCH
56
50
MPX
D
(Page 21)
AM
E
(Page 21)
AM IF
F
(Page 21)
DATA, CLOCK
H
(Page 21)
(MDX-C8500X)
QUALITY
I
(Page 21)
SMETER
G
(Page 21)
32
• SIGNAL PATH
: FM
: AM (MW/LW)
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