Kenwood KRC-309S Service Manual page 13

U V
X25-
J3
Q Q
SWITCH UNIT (X13-986x-xx)
3 7 6 3 1 5 1 5 0
1/2
1
A
2
3
CAUTION: For continued safety, replace safety critical components
only with manufacturer's recommended parts
list).indicates safety critical components. For continued protection
against risk of fire, replace only with same type and rating fuse(s). 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.
T E
L 1 3 9 4 2 2 9 6 5 1 3
4
VOL+
VOL- ATT
1
5
2
6
(X13-986x-xx)
MODEL NAME UNIT No. C D1-15
w w w
KRC-409(K) NO B30-1533-05
KRC-489(M) 0-10 NO B30-1533-05
KRC-489G(M) NO B30-1533-05
KRC-309S(K) YES B30-1533-05
KRC-389(M) 0-11 YES B30-1533-05
KRC-389W(M)
YES B30-1533-05
KRC-479(M) 0-21 NO B30-1567-05
RX-380(J) 0-01 NO B30-1533-05
7
W X
SUB-ILL
∗
C
17
18
19
20
21
22
23
24
25
26
(refer to parts
27
28
29
30
31
32
KI1
6 SRC
KI2
5 AUTO FM
KI3
4 dB
KI4
3 CLK AM
∗
ED1
D16, R10,
D21,22 R6,8
D17 C6-8 ED1
18-20 20
NO B30-1564-05 B30-1572-05 NO YES YES B38-1055-05
NO B30-1564-05 B30-1572-05 NO YES YES B38-1055-05
x a o
y
NO B30-1564-05 B30-1572-05 NO YES YES B38-1055-05
YES B30-1533-05 NO YES NO NO B38-1055-05
. i
YES B30-1533-05 NO YES NO NO B38-1055-05
YES B30-1533-05 NO YES NO NO B38-1055-05
NO B30-1574-05 B30-1614-05 NO YES YES B38-1056-05
NO B30-1564-05 B30-1572-05 NO YES YES B38-1055-05
Y Z
17
S17
18 5V
S18
0V
19 5V
S19
0V
20
5V
S20
3V
21
S21
22
S22
0V
23
S23
24 LCD DRIVER 1.7V
S24
25
3.3V
IC1
S25
26
5.0V
S26
27
S27
28 0V
S28
29
3.3V
S29
30 1.7V
S30
31 5V
S31
0V
5V
32
S32
0V 5V
5V
Q Q
0V 0V
3 7 6
CP2
1K
IC1 : LC75853NE
IC2 : RS-171
Q1 : DTA114EK
u 1 6 3
∗
D1-15 :
D16,18-20 : B30-1533-05
∗
D17 :
∗
D21,22 :
D23,24,26 : MA3062WA
AA AB
2 4
8 9 9
5V
0V
D24
64
DATAS 64
63
CLK
63
62
CE 62
61
DATAL
61
C5
60
OSC
1000P
59
VSS
C1 0.047
58
D23
VDD1
C4 0.047
57
VDD2 R7
4.7
56
VDD
55
TEST
54
CP1
KI5
1K
53
R16
KI4 KI4
52 1K
KI3
KI3
51
KI2 KI2
50
C3
KI1 KI1
3 1 5 1 5 0 8 9
2.2
4.8V
49
0V
KS6
Q1
KEY
SCAN SW
REMOTE
SENSOR
D26
KRC-309S/389/389W (K/M/M) (2/2)
KRC-409/479,489/489G (K/M,M/M) (2/2)
RX-380 (J) (2/2)
m
c o
+B LINE
.
KRC-309S/389/389W,409/479,489/489G
AC AD
2
8 9 9
J1
ILL-GND
1
2 D-GND
NC
3
4 SW 5V
LAMP+B
5
LED+B
6
R11
470
L-DATAS
64 7
R12
470
L-CLK
63 8
R13
470
L-CE
62 9
R14
470
61 10 L-DATAL
PAN 5V
11
RESET
12 RST
REMOTE
13
14 PANEL SW
ESD-GND
15
2 4 9 8 2 9 9
IC2