15
J
I
H
G
F
1
2
3
4
5
6
7
R404 100K
R403 100K
R402 100K
R401 100K
R406 100K
R405 100K
C256
33u10
0.22u50
C252
OUT1+
OUT1-
FR+
FR-
7
9
10
8
VCC1
SVR
PGND1
L11
4.7uH
N.C
REGC
10
IC2-SCL
7
6
BEEP
N.C
9
8
15
14
13
12
R
D
ATA
R Q
U
AL
REMO
11
L-INH
N.C
L-CE
R408
100K
MUTE
LOE/LIM SW(SW3)
M MUTE L
M MUTE R
RESET
XT2
N.C
20
19
18
17
16
TEST
N.C
DSI
N.C
N.C
21
25
24
23
22
LO/EJ
MOSW
M RST
M ST
OP
26
N.C
27
28
29
XT1
30
31
32
33
PRE MUTE
(DC DET)
IFC-OUT
12EJE SW(SW2)
LO.S SW(SW1)
KEY-REQ
CH-REQC
R CLK
CH-REQH
CH-MUTE
92
91
90
89
88
87
86
85
NOISE
S-METER
N.C
N.C
N.C
N.C
N.C
84
83
82
81
80
79
78
77
N.C
76
72
73
74
75
AV
R
E
F
PHONE
66
67
68
69
70
71
CH-CON
A
V
CONT
N.C
CH-RST
61
62
63
64
65
N.C
N.C
N.C
N.C
N.C
A
CC DET
CLKOUT
IC2 TYPE1
IC2 TYPE0
TYPE1
TYPE0
CD MECHA+B
SW5V
PS2-0
PS2-1
PS1-0
N.C
X2
X1
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
PS1-1
55
56
57
58
59
60
(SVR)
P-MUTE
P-STBY
N.C
51
52
53
54
N.C
PS1-2
BE DET
50
C406
0.1
R410
32.768kHz
R420 10K
X2
100K
C408
27P
R407
240
∗
R411 100K
∗
R416 100K
∗
R417 100K
∗
R412 100K
R409
15K
R419 100K
R415 100K
20.000MHz
X1
C409
47u16
10K
R7
100K
R9
33K
R6
10K
C31
0.01
∗
R32
R31
R2
36K
R25 1K
R13
5.6K
R28 1K
R27 1K
R26 1K
1K
C30
ILM
SW2
SW1
12
11
10
2
VBU
VDD
VCC
AUDIO
AM
FM
PANT
PCON
6
9
8
7
5
4
3
GND
1
R33
47K
∗
W101
∗
R23
4.7K
R22
4.7K
C251
0.22u50
C253
0.22u50
C254
0.22u50
R254
R253
10
4.3K
C257
1u50
OUT4+
OUT3-
OUT4-
SGND
OUT3+
19
FL+
11
13
IN1
17
15
IN3
RL+
FL-
RL-
23
21
25
HSD
20
16
18
12
14
IN4
IN2
A
CGND
PGND3
22
24
MUTE
VCC2
PGND4
FR-
RL+
FL+
RL-
FL-
FR+
RR-
RR+
P-CON
11
6
REAR L+
FR
ONT L+
FR
ONT R-
REAR L-
FR
ONT L-
9
8
10
7
REAR R+
REAR R-
FR
ONT R+
P-ANT
12
5
13
4
PHONE
AC
C
GND
15
14
2
3
16
1
B.
U
.
FUSE
2200u16
C1
1
FR
FL
RL
RR
R257 4.3K
R255 220
TH1
22K
R256
C258 1u50
59
9
3
1
ILL GND
PA
N
5
V
D GND
2
140uH
L1
0.01
C5
10K
R10
0.01
C4
1/2W
3.3K
R8
100K
R11
10u25
C22
10u25
∗
C23
10u16
C24
10u16
C29
10u16
C25
10u25
C26
220u16
C28
48
47
50
49
10u50
C27
+
+
51
∗
R24
EVSS
EVDD
VSS
VDD
A
VSS
AV
D
D
BVSS
BVDD
22P
C407
C405 1
V
OUT
VDD
VSS
NC
3
4
2
1
25
24
23
22
47K
5
15
13
10
59
60
9
53
74
100K
R3
R5 10K
1000P
C3
3
2
R1 82K
R4 20K
+
6
2
69
68
53
52
74
82
84
87
83
90
60
63
45
31
51
RST
48
47
49
50
12
11
29
28
27
26
91
85
86
88
52
3
2
MODEL NAME
KDC-MP222
KDC-MP4023/G
KDC-M4524/G
KDC-M4524Y/GY
K
M
E
E2
UNIT No.
X25-9620-10
X25-9620-21
X25-9812-70
X25-9622-71
A
NO
NO
YES
YES
B
C
NO
YES
YES
NO
C23
YES
YES
YES
NO
R23
R24,
NO
YES
NO
NO
411
R32
100K
22K
100K
22K
R412
YES
NO
YES
YES
NO
NO
YES
YES
R417
YES
YES
NO
NO
R206,
Q23
NO
YES
NO
NO
YES
YES
YES
NO
25
D23,
YES
NO
NO
YES
W101
ANT CONT
4 13
P.CON
RR+
RR-
FR-
FR+
FL-
FL+
RL+
RL-
1
B
3
2
4
5
7
6
8
1
2
A
3
4
B.
U
5
6
8
7
AC
C
GND
BLU/WHT
2 15
BLK
1 16
YEL
RED
3 14
BRN
TEL MUTE
ANT CONT
AC
C
GND
9
8
GRN/BLK
VIOL/BLK
FL+
8
9
BLU/WHT
WHT/BLK
GRY/BLK
FR+
P CONT
FR-
FL-
GRY
VIOL
5 12
6
7
11
10
WHT
GRN
RL+
RR+
RL-
RR-
GRN/BLK
VIOL/BLK
13
4
BLU/WHT
P
. CON
RED
2
1
BLK
15
16
YEL
3
14
WHT/BLK
GR
Y/BLK
FR
ONT R
FR
ONT L
11
6
GR
Y
BLU
5
12
VIOL
7
10
B.
U
P
REAR R
REAR L
WHT
GRN
46
46
Q3
R44
85
0.01
C410
100K
R264
47K
R12
416
+
+
+
+
+
+
+
+
+
+
+
D252
D401
D402
Q401
D51,52,152-155,160,161,
B30-1567-05
HZS12A2
MA4062-L or
HZS6C1
1SS133
D1F60
S1J or
2SC4081
2SA1036K
2SD2396
2SD1819A or
2SD2375 or
UMC2N
KRC410
UN5216 or
DTC143TUA or
KRA307
KRA303
UN5114 or
DTA114YUA or
UN5112 or
DTA124EUA or
Q350
Q151
:
:
:
D402
Q1-3,41,201,401
Q22,23
Q101,351,352
Q21
Q4
:
:
:
:
:
203,206,269-271,401
301-308,311
D151,157-159,162,
D256-258
D156
:
:
:
:
HZS5B1
AM01Z or
MA4047-M or
DAN202K or
MA152WK or
KDS184
DSM1SD2 or
ERA15-02
D1F60
SFPB-54V
MA4082(N)-L or
HZS9A1L
MA4068(N)-M
1N5393G-M6 or
S2V20
∗
A
UPD703030GC011
TDA7407D
BA4911-V4
TDA7560
HD74HC27FP
SAA6581T
PST3436UL
SI-8050JD
IC8
:
D22,23,251-255
D24,25
D31
D41
D26
:
:
:
:
D2-4,201,202,309,310
D21
IC9
D1
:
:
:
:
:
IC2
IC7
IC3
IC4
IC6
IC1
:
:
:
:
:
:
Q3
D4
Q2
Q1
D3
D31
D2
Q4
D26
∗
Q23
D24
∗
D25
∗
D23
D22
D1
D271
D270
D269
D255
D251
D253
D257
J1
J5
SERGE
B.U.
ACC
TEL
SW for
SUPPLY IC
POWER
SW
5V
RESET
IC
DSI
SYSTEM
u-COM
POWER SUPPLY IC
DET.
DET.
DET.
MUTE
ILLUMI
SW
GND LINE
SIGNAL LINE
B LINE
2/2
J1
X16-
(X25-9XXX-XX)
∗
A
IC1
IC8
IC3
A
KDC-M4524/G (1/2)
KDC-M4524Y/GY (1/2)
DC CORD
(B30-4790-05)
DC CORD
(B30-4784-05)
(B30-6131-05)
(B30-6134-05)
0V
6.7V
6.7V
6.7V
6.7V
6.7V
6.7V
6.7V
0V
0V
0V
4.3V
14.3V
6.7V
6.7V
6.7V
5V
0V
14.0V
0V
14.0V
8.1V
7.9V
8.1V
14.3V
5.0V
13.1V
10.3V
1V
3V
VDD
5V
1V
3V
5V
VDD
7V
4.6V
0V
0V
5V
0V
5V
5V
0V
5.0V
3.3V
0V
5.0V
0V
0V
0V or 5.0V
5V
0V
0V or 5.0V
5.0V
0V
0V
5V
5.0V
0V
5V
0V
5V
0V
5V
0V
5V
0V
0V
5V
0V
0V
5V
or 0V
0V
5V
0V
5V
5.0V
0V
0V
5V
0V
5V
0V
0.6-4.2V
0-4.9V
0-2.2V
5V
0V
or
5V
0V
0V
5V
0V
5V
0V
5V
5V
0V
0V
5V
0V
5V
5V
0V
5V
0V
X25-9622-71/9812-70 (2/2)
CAUTION : For continued safety, replace safety critical components only with manufacturer's recommended parts (refer to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be
carried out (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer.
• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between individual
instruments or/and units.
KDC-M4524/G/Y/GY
www. xiaoyu163. com
QQ 376315150
9
9
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9
4
2
9
8
TEL 13942296513
9
9
2
8
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2
9
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0
5
1
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1
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6
7
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Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
