WX-C570R
6-3. BLOCK DIAGRAM — MAIN SECTION —
– 37 –
– 38 –
LPF
Q41
D1
FM 8V
TU 8V
AM 8V
AM 8V
L-CH OUT
R-CH OUT
AMDET
S-METER
SD
ST
IFC AM
IFC FM
VCO
VT
LO/DX
SEEK
TUNER UNIT
TU1
18
16
11
10
12
19
53
62
57
13
20
22
11
21
6
5
4
13
35
37
38
33
16
CL
18
DI
17
CE
TONE/
DBB
36
34
OFF
ON
S501
POWER
SELECT
ELECTRONIC VOLUME
IC302
POWER AMP
IC306
CN900
CN304
R-CH
R
–2
–1
X51
7.2MHz
X501
32.768KHz
X502
3.68MHz
SI
FM ST
SD IN
VSM
TU MUTE
SO
PLL
CKO
CE
X1A
X0A
X0
X1
AF SEEK
04
FL
RL
1
3
5
FL+
FL–
1
9
21
20
L
10 MUTE1
2 STBY
11
7
9
RL+
RL–
10
2
4
12
3
11
13
14
7
15
5
6
BUZZER
DRIVE
Q591
START
MUTE
Q921,922
5V REG
Q71
+B SWITCH
Q81
MUTE
CONTROL
Q903
R-CH
Q151
Q351
Q31
S-METER
RV31
R-CH
TAPE SECTION
CD SECTION
TAPE L-CH
CD L-CH
16
18
9
64
15
FM DET
16
23
MPX
20 LVIN
AM IF
AM OSC
FM OSC
PD
LO/DX
SEEK OUT
X1
X0
DO
DI
CLK
CE
1
20
74
93
83
6
5
4
2
PLL
IC51
FM/AM SELECT
IC303
9
10
11
19
73
X81
4.332MHz
OSCO
OSCI
5
4
92
VOL CKO
VOL CE
VOL SO
MUTE
67
68
66
84
15
85
117
116
118
2
3
4
7
6
8
9
10
11
31
101
102
81
100
BEEP
AMP ON
TU ON
FM ON
P ON
POR SEL
TEL MUTE
ILL IN
ACC IN
TEST
SYSTEM CONTROL
IC501(1/2)
TEL MUTE
CONTROL
Q902
6V REG
IC941
19
ACC
CHECK
Q971
DIMMER
CONTROL
Q901
BATT
HIGH VOLT
CHECK
Q923
BATT
MODE 2
MODE 1
STBY
AM 8V
AM 8V
+6V
PUL 5V
FM 8V
FM 8V
Q1001
VCC
AMP +B
ANT +B
COM 8V
BATT
RDS 5V
TU 5V
TU 8V
COM 8V
R-CH
FR+
FR–
RR+
RR–
AMP REM
ANT REM
ATT
ILL
ACC
TEST
POWER SUPPLY
IC901
BZ591
(BUZZER)
ANT FM
ANT AM
+B FM
+B TU
+B AM
1
2
8
9
10
BU 5V
D922
2
1
TAPE SECTION
3
J1
(ANTENNA)
BATT
D564
D569
BATT
PON
: CD
BUS AUDIO IN
MUTE
DRIVE
Q451
CN803
R-CH
R-CH
Q801
Q802
9
6
65
12
8
MUTE
DRIVE
Q924
MUTE
DRIVE
Q352
Q181
Q182
L
-1
-2
-3
-4
R
L
R
LINE OUT
FRONT
LINE OUT
REAR
AM 8V
1
2
Q61
SWITCH
IC41
6
3
7
5
Q82
MPTH
DAVN
RDS
SDA
SCL
MPTH
DAVN
SDA
SCL
2
8
9
10
RDS MODULATOR
IC81
52
72
70
71
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
