Ffffff

7
ANT. J4

6

5

4

3

2

1

KDC-MP225,MP4026/G KDC-W4527/G/GY/Y,W427Y

16
∗A1 ∗B
C116 330P
AUDIO OUT IFC OUT SDA NOISE OUT AMIF OUT RDS OUT FM ANT AM ANT SCL DIG GND RF GND VDD 5V NC OSC GND OSC GND OSC GND OSC GND S-METER IF1 GND AM+B PLL+B IF1+B W/N

A

4.9V
V1

ELECTRIC UNIT (X25-998x-xx)

TP654
4 3 2 1 9 8 7 6 5 18 13 20 19 17 16 15 14 12 11 10 24 23 22 21 7 6 54 8

C117 2.2u50 +

0V 5V 0V
R111 4.7K
TP104 TP122 TP120 TP115 TP114 TP113 TP102 L7 4.7uH L6 4.7uH L3 0.052uH L8 4.7uH

1 QUAL 2 RDDA 2.4V 3 VREF 2.4V

REMO.CONT

C108 0.01 C106 0.01 C104 0.01

IC7

ARI TP650 TP651 R104 470 R102 470 C105 0.01 R101 1K EXTRES OSCIN

MPX

GND

OSEL

∗G

FILOUT

TP533
1 2

RDS DEMODULATOR
R105 4.7K R103 4.7K
19 20 21

TP535 TP536TP534

FSEL VCC TM

MARIN REMO
2.2K R113 R112 2.2K

WIRED REMO

REMO CONT

∗CN4

FM/AM TUNER

4.9V 16 0V RDCL 15 T57 14 OSCOUT

∗CN3
9 10 11 12 13

3 4 5

2

2

1

1

X25-998x-xx/X34-3172-70 (1/3)
TP538 TP537
14

B

4V 0V

4V 0V

13 TP100

4.9V
X3

C114 0.01

R106 2.2K

0V

0V
1
4 7 8 6 5

C506 0.01 C507 0.1
INH VSS VEE

TP539
3 2 1

67 8

TP652

∗R374

CN1

ESD-GND
L9 4.7uH TP653

TDF DET
47K 47K

PON 5

4V 0V

REMO

P1
5V 0V
4.332MHz
4.7K

1K

TP371

Q101
C111 1000P
Z0

TP540
9 Y0 Y1 ZCOM

C113 10P C112 10P R114 2.2K

R161 63

C115 10u16 +

TP541

Z1 4.0V

TP165

2.2M

IC10 SELECTOR

15 C

R176 TP164 1K

16 8.1V VDD 15 0V 4V YCOM 0V XCOM 14 4.0V

14

4V 0V

∗R172∗D159
Q501
R508

47

X0 A B

X1

13

9

13

11

12

10

TP163

∗D151
SW

TP162

∗R183

1K

R160 2.2K

1K

12

65

5.1V 0V

R501 47K

WH2

11

L-DATAS

R175 TP161 470

R154 470

9

C

TP160

L-CLK

R173 470

R152 470

10 6 5
TP530 TP532 TP531

1 2 3

10

TP159

R171 1K

D162

9

IC2

L-CE

6

TP158 1K

R174 100R153 470

∗R211

8

L-DATAL

∗D205
4.0V
1 VREF ACOUTL ACOUTR CREF LFOUT RFOUT CASSL LROUT RROUT RR L10 4.7uH VDD CASSR GND 5 5 21 0V 22
C211 47u10 + C210 0.01

∗W114

∗W113

∗W111

8 R162 100K 28 27 26 4.1V 25 4.1V 24 4.1V 23 4.1V RL FR FL

TP157

R180 1K

62

4.0V
2

WH1

7

to SWITCH UNIT (X16- ) (J1) ELECTRONIC VOLUME & FM MPX DETECTOR
4.0V
3

TP527TP528

TP529

L-RST

5

R182

RST

TP156

1K

60

R G

6 5 4 3 TP526 TP525 TP524 2 1

6

∗D157 ∗D158

∗D201
11

C209 2.2u50 + C201 0.47u50 +

LED+B

TP154

5 4

8.1V

LED+B

∗D156
∗Q151

C202 0.47u50 +

4.0V
4

3
10K 47K

ILL GND

TP153

∗D202
6

D

TP152

R181 10

2

PANE 5V

∗F

CN6

D GND

TP151

∗W39
6 CDGND CDL RHAFSSCL SDA 20 19 7 8 9

4.0V 0V
CDR

5V 0V

4.0V

R208 470 R207 470

R210 4.7K
SCL SDA

1

TP501 23 24 R209 4.7K

D502 D503
D203
18

C502 R504 0..22 10
R502 180K

∗R206
1K C204 0.01

AUX R
3

∗J5
4.0V 4.9V 0V
C203 R201 10K 0.022 10 AM MPX 11 R202 4.7K C205
47K

∗D525

∗D524

TP502
2

AUX GND
R503 180K

TP503 SMUTE

D501
0-2.0V

C504 R506 22u10 4.7 +C503 R505 0..22 10 R507 1K

PARK SW

AUX L
1

∗E
0.47

CN5

VIDEO OUT

Q521
C206 150P C212 R520 1K 0.1 38 C213 0.1
R203 4.7K

3.5V 0.5V

PARK SW

R522 10K

AUX IN

47K

D521 C521

1

0-5.0V 12 0-5.0V 13 4.2-4.9V 14

4V 0V
LEVEL MPIN MPOUT

Q201

TP523

D GND

R521 47K

QUAL MUXR MUXL

17 16 15

4.7K

0.1

TP522

Q350

R205 2.2K
R204 4.7KFL
22K 22K

C351 R351 10u16 270 + 2
R355 30K
4.7K

R357 100

TP351

2

Q351

D522 D523

TP352

E

VIDEO OUT

R523 75

PRE OUT

3

TP521

Q352

22

R356 30K

4.7K

D-OUT

TP51 R65 4.7K

C352 10u16 R352 FR + 270

TP353 R358 100

CN2 1

J3

CD DISC12 SW

TP52 R51 2.2K

2

47

N2 1
FR

D-OUT

TP51 R65 4.7K

C352 10u16 R352 + 270...