Block Diagram - Tuner Section - Sony MDX-CA580 Service Manual

MDX-CA580
4-2. BLOCK DIAGRAM – TUNER Section –
FM/AM TUNER UNIT
TU1
J1
(FM/AM ANTENNA)
2 ANT-FM
1 ANT-AM
05
11 5 16
17 18 4 14 9
RDS DECODER
IC51
SC
57 kHz OUT
CIN
16 BAND-PASS 18 19
MPX
FILTER
MULTI
LVIN
20 PATH 2
DETECTOR
9 10 51 53 52
BU B+
TUNER +8.7V
TUNER +5.6V
MPX 10
AM-DET 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
X51
4.332MHz
64
MASTER CONTROLLER
IC501 (1/3)
18 18
MUTING
Q111
MUTING
Q121
MUTING
CONTROL SWITCH
Q131
D131
BUFFER
Q1
BAND-PASS
FILTER
IC90
Q90
NOISE DET
DISCHARGE
SWITCH
50 32 56
MPX
E (Page 19)
AM
F
(Page 19)
IF-AM
G (Page 19)
DATA, CLOCK
I (Page 19)
S-METER
H (Page 19)
• SIGNAL PATH
: FM
: MW/LW