Kenwood KDC-C469 Service Manual page 16

U V
Q Q
3 7 6 3 1 5 1 5 0
MODEL C103, C108,
1 R308
NAME 203 208
KDC-C469FM(K)
0.01 1000P 150K
KDC-C519FM(K,M)
KDC-C469FM(E)
KDC-C469FMA(E)
4700P 680P 120K
KDC-C520FM(J)
IC1 : UPC7805AHF
IC2 : LC72329-9B24
IC4 : NJM78L05UA
IC101 : NJM2060M
IC102,302 : NJM4565MD
IC301 : BA1405F
Q1,3 : DTC124EK
Q2 : 2SA1782(T,U)
Q4,5,8 : DTC143TK
2
Q6 : DTA124EK
Q9 : 2SC4640(T,U)
Q101,201,304,305,308-310 : 2SK2158
Q303 : 2SA1162(GR)
Q306 : 2SK508L
Q307 : 2SC2714(Y)
14.4V
R1
F2 3A ZD1
D2
RED (ACC) 2.4K
+
3
14.4V
13.5V
R7
F1 3A L1
D15
(BATT) 22 2W
YEL
+ +
+
BLK (GND)
CN103
13.5V R8
22K
T E
L 1 3 9 4 2 2 9 6 5 1 3
12.6V
Q2
4
13.4V
12.6V
C20
220u25
+
C114
0.015
IC102 6.3V
8
(1/2)
R109 C106 5 R116
1.8K 10u16
6.8K
6
+
7
6.3V
6.3V
6.3V
0V
5
4
R209 C206 2
1.8K 10u16
1
R216
3
+
6.3V IC102 6.3V 6.8K
(2/2)
C214
0.015
L.P.F
R112
75K
∗
C108
6
Q308
R343
100
w w w
∗
C208
R212
75K
7
W X
RF MODULATOR UNIT
D1,5,14 : DSK10C-ET1
D2,15 : DSK10C-BT
D8,9,12,13,16 : 1SS131
to DISPLAY UNIT
D101,201,302 : DA204K
VD301 : HVU306A-3
ZD1-7 : MTZ6.2J(B)
(DATA IN)
8 7 6
(DATA OUT)
5 4 3
(LCD CE)
2 1
SIGNAL LINE
CN101
GND LINE
(LCD CLK)
B LINE
0V (GND)
3.5V Q1 Q6
ACC
22K 22K
DET
22K 22K
0V
RESET
SW
Q4 Q5
1.1V
4.7K 4.7K
5.0V
IC1
5V AVR
IN OUT
GND
+
R9
2.2K
SW
D8
22K
Q3 22K
6.3V 12.6V
6.3V
R106 10K
IC101
6.3V 4 C104 R102
IC101 R105 (1/4) 12 10u16 1.5K
R115 R114 10 10K
(2/4) +
6.8K 6.8K
13
14
9
8 6.3V
11
R108 0V R107 C105
6.3V
+
10K 10K 220u10
+
C205
R208 R207 220u10
+
10K 10K
6.3V
6.3V
6.3V
R214
6
R215 6.8K R205
7 2
10K C204
5 1
10u16 R202
6.8K IC101 3
(4/4)
6.3V IC101 +
6.3V 1.5K
R206
(3/4)
10K
R328
C111 3.7V
1u50
270
VR301 Q303
3.0V R302 12K
+
33K(B)
4.3V
3.9V R348 C306 R301 C335
0V 4.7u50
3.1V
220K 220P 150K
+
IC301
2.6V
3.5V 0V 0V
3.5V
0V 0V
3.5V
+
Q101 2.1V
0V
Q201
FM STEREO
x a o
MODULATOR
. i
C211
1u50
+
Y Z
X302 4.5MHz
C11 C12
R22
1K
22P 22P
2.2V 1
XIN
0V 2
TEST2
0V 3
R23 PG3
1K 0V
4
PG2
R25 5.0V 5
PG1
1K 0V 6
PG0
7
R26 PH3
1K
8
PH2
9
PH1
10
PH0 MUTE1
11
PF3 MUTE2
4.8V 12
12 PF2 REQC
5.0V 13
13 PF1 REQH
5.0V 14
14 PF0 CHCON
4.8V
15
15 PE3 DATE IN
0V 16
16 PE2 DATE OUT
5.0V 17
17 PE1 SCK
18
PE0
(CD RESET)
0V 19
PD3 DATE OUT
5.0V 20
PD2 CLK
0V 21
PD1 RST
0.6V 22
PD0 CE
(+5V) 23
PC3
24
PC2
5.0V
(D.GND)
R11
1K
Q Q
3 7
63
D14
6.3V
IC302
(1/2)
3
1
2
D302 IC302
(2/2)
C312
+
6.3V
0.01 7
4
6.3V
+
0V
R333 47
26
74
61
C321 R337 C320 C322
1u50 4.7K 180P 220P
R317 R319
+
2.4K 1.2K
R327 47K
R334 R325
4.7K 22K
+
+
Q310 Q304 Q305 Q309
u 1 6 3
y
AA AB
2 4
8 9 9
5.0V
5.0V
67
64
COM2
3.0V 2.4V 63 4.6V
P ON S1 63
62 2.8V
RELAY S2 62
0V
61
SEP ATT S3 61
60 0V
MUTE S4 60
59
ALC LOW S5
58
S6
57
S7
56
S8
55
S9
54
S10
IC2 17
53
ZD2
S11
SYSTEM u-COM
52
S12
51 ZD3
S13
CD
50
R15
S14
49
100K
S15
12
48
S16 ZD4
47
S17
46 16
S18
ZD5
45
S19
44
R18
S20
43
100K
S21 15
42
ZD6
4.5V S22
41
S23
13
ZD7
0V
0V 5.0V
14
+
6 3 1 5 1 5 0 8 9
+
12.6V 5.7V
IC4
5V AVR
Q9
4.9V
IN OUT
GND 13.5V
R34 5.6V
12.6V +
1.8K
RL1
RELAY
6.3V
8 R306
5 10K
+
R307
6
Q8
4.7K
4.7K
∗
R308
C310
33P
R35
150
C332 5P
C324 15P 4.1V
0.9V 0.7V
4.8V L305
C331 R338
L301 Q307 120nH
Q306 C328 1P 4.7K
220nH
2P
C325
0.01
C326
47u25
+
m
c o
.
KDC-C469FM (2/3)
AC AD
2
8 9 9
R14
3.3K (SCK)
13
R16
3.3K (REQ C) 9
R17
1K (DATA OUT)
11
R19 to CHANGER
3.3K (DATA IN)
10
CN102
R20
1K (REQ H) 1
1 5 9
R21 E
4.7K (CD POW) 2 6 10
4
13
3 7 11
4 8 12
(RESET) 7
(MUTE)
5
2 4 9 8 2 9 9
(D.GND) 2
(BATT)
3
E
(Rch)
8
(S GND) 6
(Lch) 12
ANT IN
CN104
CN105
to RADIO
CAUTION : For continued safety, replace safety
critical components only with manufacturer's rec-
ommended parts (refer to parts list).
Indicates safety critical components. To reduce
the risk of electric shock, leakage-current or resis-
tance measurements shall be carried out (ex-
posed parts are acceptably insulated from the
supply circuit) before the appliance is returned to
the customer.
• DC voltages are as measured with a high im-
pedance voltmeter. Values may vary slightly
due to variations between individual instruments
or/and units.