Kenwood KDC-5021 Service Manual page 12

K L
Q Q
3 7 6 3 1 5 1 5 0
BU
REAR FRONT N-F(3PRE)
R226 R225 R224 R223 R228
22K 22K 22K 22K 22K
Q204 Q203
Q202 Q201 Q206
Q203 Q201 Q205
PRE MUTE SW PRE MUTE SW PRE MUTE SW
(REAR Lch) (FRONT Lch) (NON-FADER Lch)
Q204 Q202 Q206
PRE MUTE SW PRE MUTE SW PRE MUTE SW
(REAR Rch) (FRONT Rch) (REAR Rch)
0V or 5V
IC5
8.0V 1
16
VCC
SW2
15 4.0V
R406 R208 2 RL
SW1
1K 22K
R212
4.0V 3 RR 14 4.0V
22K
R216 4.0V
4 4.0V
13
22K
4.0V
5 4.0V
12
R214
T E
L 22K 4.0V 1 3 9 4 2 2 9 6 5 1 3
6 FR 11 4.0V
FL
R210
0V
22K 7 10
SW R
4.0V
R206
9 0V
22K 8
GND
SW C
SWITCHING OP AMP
PON5V
A8V
E-VOL NOISE
MUTE SW BUFFER
22K Q402
Q401
22K
3.6V
0V-3.5V
5V
0V
D202
D201
w w w
IC2
E-VOL/
NC/
MPX
.
A8V
BU5V
7.5V
ILL+B
M N
J4
1 5 9
D GND J4 TOP VIEW
2 6 10
BU
13
3 7 11 REQ C
BU
∗
E
4 8 12
R227
22K
Q205
Q404
AUDIO
MUTE
Q404
DRIVER
∗
F
R207
22K
R211
22K
R215
22K
∗
EEP ROM
IC9
5 4
0V
R213 SDA GND
22K
6 5V 3
0V
SCL
0V A2
R209
0V 7 2 5.0V
22K TEST A1
5.0V 8 1 0V
VCC A0
R205
22K
RR
FR
FL
RL
PON5V
BU5V
77
IC2
A8V
ILL+B
C409
0.1 7.5V
4.8V
BU5V
C406
0.1
C407 150P
C408 0.01
x a o
y
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
i CN2
A8V
BU5V
7.5V
ILL+B
O P
8
CLK DATA H Lch Rch CHCON BUP D GND
13 11 12 8 4 3 2
L1
DATA C A GND RST MUTE REQ H
52mH
9 10 6 7 5 1
∗
Q1,2
A1
FM+B SW R1 Q2
1K
+B
1
Q1 C1
RF GND
10u16
2
22K FM ANT
40 R2 +
3
22K AM ANT
C2 0.01
22K 4
OSC GND
5
+B FM +B
R3 Q4
6
1K
+B AM +B
C3 C5 7
Q3
OSC GND
10u16 100u10
8
Q3,4
22K OSC GND
R4 +
39 +
9
AM+B SW
22K
C4 0.01 C6 W/N
22K 10
0.01 OSC GND
11
Vt
12
A8V A8V PLL +B
13
79 IFC OUT
14
Q6
16 SDA
15
IFC SCL
18
BUFFER 16
L5
DIG GND
4.7uH
17
PON5V VDD 5V
18
NOISE OUT
∗ 19
RDS OUT
G
20
AUDIO OUT
21
AMIF OUT
22
S-METER
L6
23
76 +B
IF1 +B
4.7uH C8 24
IF1 GND
Q6 100u10
+
C9 C17
R7 0.01 0.1
4.7K
PON5V
∗
63
H
IC7
1 5V 16
35 QUAL RDCK
0V
2 5V
36 RDDA 0V
Q Q 15
R6 C14
T57
3 7 6 3
2.2K 27P
2.4V 3 14
VREF OSC O
C12
2.4V
330P 4
MPX
C15
5.0V 5 13 27P
OSEL OSC I
0V 6 12 5.0V
GND VCC
7 11 0V
ARI EXT RES
0V
10
TM
2.4V
8 9 0V
FIL OUT FSEL
IC7
RDS DEMODULATOR
BU5V
PANEL GUIDE
DET ILLUMI SW
R626
S1 Q906
470K
C607
0.22
P5V
ILL+B
7.5V
u 1 6 3
18 17 16 15 14 13 12 11 10 9 8 7 6 5 4
.
to CD MECHA
Q R
CAUTION: For continued safety, replace safety critical components only with manufacturer's
ANT.
recommended parts (refer to parts list). indicates safety critical components. For continued
2 4
9 9 8
protection against risk of fire, replace only with same type and rating fuse(s). To reduce the
WH1
risk of electric shock, leakage-current or resistance measurements shall be carried out
1
(exposed parts are acceptably insulated from the supply circuit) before the appliance is
returned to the customer.
2
(X25-xxxx-xx)
MODEL NAME UNIT No. B C D E F G H I J A1
KDC-419 (K) X25-9210-10 NO YES YES NO NO NO NO YES NO X86-3240-11
KDC-X459 (K) X25-9210-11 NO YES YES YES YES NO NO NO YES X86-3240-11
KDC-319 (K) X25-9210-12 NO NO YES NO NO NO NO YES NO X86-3240-11
KDC-5020 (M) X25-9210-21 NO NO YES NO NO NO NO YES NO X86-3240-11
KDC-5021Y (E2) X25-9212-71 YES NO NO NO NO YES YES YES NO X86-3242-70
KDC-5021 (E) X25-9222-70 YES NO NO NO NO YES YES YES NO X86-3342-71
KDC 506 (E) X25-9222-71 YES NO NO NO NO YES YES YES NO X86-3342-71
KDC-5021YV (E2) X25-9212-72 YES NO NO NO NO YES YES YES NO X86-3342-70
KDC-5021V (E) X25-9222-72 YES NO NO NO NO YES YES YES NO X86-3242-71
KDC-4019 (K) X25-9210-13 NO NO YES YES YES NO NO NO YES X86-3240-11
KDC-5020R (M) X25-9210-22 YES NO NO NO NO YES YES YES NO X86-3242-70
MODEL NAME UNIT No. IC1 IC9 R611 R615 R617 R618 R619
KDC-419 (K) X25-9210-10 UPD784225GC156 BR24C01AF-W NO YES NO YES NO
KDC-X459 (K) X25-9210-11 UPD784225GC156 BR24C02F-W YES YES NO YES YES NO
KDC-319 (K) X25-9210-12 UPD784225GC157 NO NO YES NO YES NO
KDC-5020 (M) X25-9210-21 UPD784225GC157 NO NO YES YES NO NO
KDC-5021Y (E2) X25-9212-71 UPD784225GC157 NO NO NO NO YES YES
KDC-5021 (E) X25-9222-70 UPD784225GC157 NO NO NO NO YES YES
KDC 506 (E) X25-9222-71 UPD784225GC157 NO NO NO YES NO YES
KDC-5021YV (E2) X25-9212-72 UPD784225GC157 NO NO NO NO YES NO
KDC-5021V (E) X25-9222-72 UPD784225GC157 NO NO NO NO YES NO
KDC-4019 (K) X25-9210-13 UPD784225GC157 NO YES YES YES NO NO
X25-9210-22 UPD784225GC157 NO NO NO NO YES YES NO
KDC-5020R (M)
∗
IC1 : Q1,3,401,704,901 : DTC124EUA
IC2 : TDA7407D Q2,4,503,505 : 2SB1277(Q,R) or 2SB1434
IC3 : TC74HC02AF Q6,201-204,402 : DTC143TUA
IC4 : TA8273H Q205,206 : 2SC2114K
IC5 : NJM2123V-TE2 Q403,404,507,705,902 : DTA124EUA
IC7 : SAA6581T Q501,502,702,707 : 2SC4081
IC8 : S-80830ANNP Q504,508 : DTC114YUA
∗
IC9 : Q506,703 : 2SA1576A
Q510 : DTC144EUA
Q701,706 : 2SA2057
D1 : IMSA-6801 Q708 : 2SD2375
1 D100-103 5 1 5 : MA4062-L 0 Q903 8 9 2 : 2SD1760 4
D201-205,502,503 : MA4068(N)-M Q905-907 : DTA114YUA
D207-214,504-507,701 : AMO1Z
D401 : MTZJ4.3(B)
D402-405,408,508,601 : 1SS133
D406,907-911 : DAP202U
D501 : 1N5393G-M5
D510 : MA4047-M
D702 : MA4056(N)-M
D703 : MA4091(N)-L
D704 : MA4082(N)-L
D901 : MA4110-L
D902-906 : DAN202U
D912 : B30-1567-05
D913 : MA3062
(X89-xxxx-xx)
CN1
SIGNAL LINE
ILL-GND 18
GND LINE
ILL+B 17
+B B LINE
VDD 16
D-GND 15
BU5V NC/DIMMER 14
EJECT KEY & RST 13
DSI ILLUMI SW
Q905 REMO 12
47K L-INH/L-RST 11
Q907
PANEL
5V SW D/A DATA/NC 10
10K
L-DATAL 9
L-CE 8
L-CLK 7
D913
L-DATAS 6
D/A CLK/NC 5
FLIP DET 4
EJECT 3
EJECT ILL 2
D902 D903 D904 D905 D906
ESD-G 1
m
D907 D908 D909 D910 D911
c o
KDC-5021/5021V,506 (E/E,E) (1/2)
KDC-5020R,5021Y/YV (M,E/E) (1/2)
3 2 1
KDC-319/4019,5020 (K/K,M) (1/2)
CN3 P1
KDC-419/X459 (K/K) (1/2)
KDC-5021/5021V,506
S T
2
9 9
D404,
C418 CP61 D506
405
NO NO NO YES
YES NO YES YES
NO NO NO YES
NO NO NO YES
NO YES NO NO
NO YES NO NO
NO YES NO NO
NO YES NO NO
NO YES NO NO
YES NO YES YES
NO YES NO NO
R653,
R620 R621 R622 R909 W32
656
YES NO YES YES YES NO
NO YES YES YES NO
YES NO YES NO NO NO
YES NO YES NO NO NO
NO NO YES NO NO YES
NO NO YES NO NO YES
NO NO YES NO NO YES
YES YES NO NO NO YES
YES YES NO NO NO YES
YES YES NO NO NO NO
YES NO NO NO YES
9 8 2 9 9
J1
1 ILL-GND
+10.5V 2 ESD-G
+5V 6 3 L-DATAS
X16-
4 D-GND J1
14 7 5 L-CLK
2/2
13 14 6 NC/DIMMER
12 8 7 L-CE
11 8 ILL+B A
10 9 9 L-DATAL
9 10 10 D/A DATA/NC
8 EJECT 11 11 L-INH/L-RST
7 S1 12 12 REMO
6 13 13 RST
5 5 14 D/A CLK/NC
4 4 15 FLIP DET
+5V 16 VDD