KDC-C471FM/C521FM
21
AD
AC
AB
AA
Z
1
2
3
4
5
6
7
LATOR
D301
(1/2)
IC302
Q303
Q351
Q301
Q304
Q305
(2/2)
IC302
VC401
Q411
Q401
Q402
ZD603
Q604
Q606
Q607
D604
ZD602
D603
Q608
Q605
D602
D601
Q601
PN601
PN302
RADIO
PN301
to
CAR ANT
D605
ACC
BATTERY
3/3
CONTROL
UNIT
-CN701
GND LINE
B LINE
SIGNAL LINE
Q609
Q602
1/2 VCC
RF
LPF
8V AVR
BU 5V AVR
6V AVR
IN2
.7u50
C220
C301
10u25
IN1
1
2
+
47u50
14
12
C120
V+
MPX OUT
PILO
T
6
4
+
3
GND
AC
5
X301
38kHz
C
X
7
VR301
11
10K
10
9
8
C315
3300P
3
2
4
8
1
13
10K
R304
10K
R303
15P
C303
TRIM
TRIM
NC
NC
BYP
A
AC
BYP
A
C302 100P
1.5M
R308
470P
C308
R352 3.3K
R355 18K
R351 22K
680
R353
3.3K
R316
6.8K
R318
2.2K
R356
10K
VR302
68K
R307
470
R309
330
R311
4.7u50
C309 +
180P
C307
6
5
7
6.8K
R306
0.033
C306
100u10
C313
+
10K
R322
10K
R324
150K
R325
R323 10K
33P
C314
40
39
POWER ON
RELAY ON
50
51
52
53
MUTE
REMOCON
C505
1
67
68
69
SNS
LCTR
HCTR
65
66
HOLD
56
54
55
57
58
61
59
60
62
63
64
R404
100P
C403
10K
R406
10K
R405
22u25
+
C401
+
C402
2.2K
R402
12P
C404
470P
C414
15P
C413
390
R451
100P
C418
1.5K
R414
15P
C411
15K
R411
0.022
C416
22K
R401
560
R403
4.7u50
C405
+
10u25
100K
220
R412
1.5K
R413
15P
C412
220u10
C415
+
220u10
C417
+
220u10
C607
+
1K
R613
R614
1K
0.1
C608
4.7K
R612
10K
R606
R605
10K
10K
R604
100u10
C603
+
4.7K
R603
10K
R601
1000u16
C602
+
100uH
L601
IN
OUT
GND
4.7K
R602
10K
R611
R608 4.7K
R607 4.7K
0.1
C604
GND
3
BATT
FUSE1
3A
2
ACC
FUSE2
3A
1
560
R310
+
C304
1.5K
R302
220u10
45
100
R407
1K
R301
R327
4.7
RY401
2
3
2
1
1
33P
C419
0.022
C420
C421
470P
0.1
C651
R314 2.2K
22K
R321
47u10
C312
+
C652 1
470
R651
47K
R617
470P
C451
OUT
KCA-R71FM
KDC-C521FM
KDC-C471FM
DESTNATION
E
J,E
J
680P
214
C114,
1000P
KDC-C471FM
KDC-C521FM
KCA-R71FM
K,M
K
K
+
IC301
IC601
KDC-C471FM/C521FM (2/3)
A
22K
22K
22K
22K
4.7K
2.2
4.7K
2.1V
2.5V
1.1V
0V
0.5V
1.3V
2.6V
1.7V
3.9V
7.7V
2.1V
2.1V
3.9V
3.9V
3.9V
13.5V
7.7V
13.5V
14.4V
13.5V
5.9V
CAUTION : For continued
safety, replace safety criti-
cal components only with
m a n u f a c t u r e r ’ s r e c o m -
mended parts (refer to parts
list).
Indicates safety critical
components. To reduce the
risk of electric shock, leak-
age-current or resistance
measurements shall be car-
ried out (exposed parts are
acceptably insulated from
the supply circuit) before the
appliance is returned to the
customer.
• DC voltages are as mea-
sured with a high imped-
ance voltmeter. Values
may vary slightly due to
variations between indi-
vidual instruments or/and
units.
FM MODULATOR UNIT (2/2)
www. xiaoyu163. com
QQ 376315150
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TEL 13942296513
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299