Kenwood KRC-309S Service Manual page 12

K L
Q Q
3 7 6 3 1 5 1 5 0
7.2V
4.7V 7.3V
7.3V
7.3V
T E
L 67 1 3 9 4 2 2 9 6 5 1 3
67
C103
0.1
R107 3.3V
2.5V
100K
1V 1.7V
65
R139
ACC-DET
47K 0-3.5V 66
S-METER
5V
67
HOLD 0V
5V
5.0V 68
VDD 0V
69
69 M-STBY
5V
70
70 T-END 0V
71
NC
72
NC
5.0V 73
VDD
74
GND
75
GND
76
GND
77
OPEN
78
OPEN
79
GND
0V
5V
0V
80
X OUT
X1
4.5MHz
w w w
11 .
M N
PRE OUT
∗ ∗
B A
J5 J6
C225 0.01
IC4
R227 R228 R225
30K 30K
POWER
AMPLIFER
Q223 Q224 Q221
Q221-224
PRE MUTE
+ +
C257 +
1u50
R257
3.6K
R262
180K
44
5V
5V
0V
0V
R161
10K
5V
0V
40
EN2-1
5V 5V 5V CP1
5V
10K
0V 0V 0V
0V
39
EN3-0 39
4.8V
5V
38
0V
0V EN3-1
37
EN1 37
36
SVR
R134 47K
35
P-STBY
34
∗
P-MUTE
5V
IC1 33
0V SW 5V
5V 5V
SYSTEM R136 1K
0V 0V
u-COM
R137 10K
32
IC2-SDA
31 5.0V
VDD ∗
5V R184 10K
30
0V TYPE 0 ∗
5V
0V 5V 29 R183 10K
OPEN or 5.0V TYPE 1
0V
5V 28
5V NC
5V 0V
27
0V 0V
NC
26
5V 5V
NC
0V 0V
25
NC
5V
5V
0V
0V
R122 R133 R132
100K 10K 4.7K
∗
R121
5V 5V
100K D101
C R196 240
0V 0V
Q191
10K
x a o
R131 47K y DSI DRIVER
100K
i
O P
8
J1
∗
L301
A1
52mH
W501
0 1
RF GND
2
FM ANT
3
AM ANT
4
R226
OSC GND
30K 30K
Q222 5
FM+B
6
AM+B
7
OSC GND
8
OSC GND
9
OSC GND
10
OSC GND
11
VT
12
PLL+B
R123 13
IFC OUT
14
22K
8 PLL DATA
15
∗
9 PLL CLK
W6
16
DIG GND
∗
L306
R301
150 4.7uH
17
VDD 5V
D301
18
L307
IF2 GND
4.7uH
19
IF2+B
20
11 AUDIO OUT
21
10 SD
22
66 S-METER
23
IF1+B
24
IF1 GND
5V SW
R51 47K
Q50
R1
33
4.7K
P.CON.
DETECTION D3
46
Q52
R52
Q Q
3 7 6 3
220K
C50
10u35
∗
R2
∗
4.7K
POWER D
∗
ANTENNA
DETECTION D5
41 47
R53
∗
220K
Q51 C51
10u35
5.0V 41
0V 2.5V
39
36
35
34
32
5V
0V
L101
4.7uH
W510
0
4
∗
5
R199
10
6
∗
∗
R198
Q190 3
10
67
56
u 1 6 3
PANEL
7
SW
.
KRC-309S/389/389W (K/M/M) (1/2)
KRC-409/479,489/489G (K/M,M/M) (1/2)
RX-380 (J) (1/2)
Q R
2 4
9 9 8
∗
IC1 : D1 : S2V20 A
IC2 : TDA7407D D2,4 : 1GWJ43 (TPB5)
IC4 : TDA7386 D3,5,551 : AM01Z
∗
IC5 : D10,11,401,402
IC6 : LB1930M : MA4068(N)-M
IC7 : TDA3682ST D20 : MA4051-L
IC10 : HD74HC27FP D101 : B30-1567-05
D102,103,106,108,
Q10,11,51,52 403-405,407-409
: 2SC4081 : MA4062-L
Q41 : DTA124EUA D201,251-253
Q50 : 2SA1036K : 1SS133
Q190,191 D301 : MA4051 (N)-M
: DTA114YUA
Q221-224
: DTC143TUA
Q251 : DTC114YUA
Q501 : 2SD1760
Q551 : 2SB1443
Q552 : DTC114EUA
(X14-639x-xx)
MODEL NAME UNIT No. A B C D CN5 J3 IC1
KRC-409 0-10 YES NO YES NO YES E58-0879-05 LC72366-9996
KRC-489
0-21 YES NO YES YES YES E58-0879-05 LC72366-9996
KRC-489G
KRC-309S 0-11 NO YES YES NO YES E58-0879-05 LC72366-9996
KRC-389
KRC-389W 0-22 NO YES YES YES NO E58-0879-05 LC72366-9996
KRC-479
RX-380 0-01 NO YES NO YES YES E58-0880-05 LC72366-9995
D102,103, R106, R144, R145,
D4,5 VR1,2
MODEL NAME UNIT No. R2 R183
106,108 199 523,524 505
KRC-409 0-10 NO YES YES NO NO YES YES NO
KRC-489
0-21 YES YES YES YES NO YES YES YES
KRC-489G
KRC-309S 0-11 NO YES YES NO NO NO YES NO
KRC-389
KRC-389W 0-22 YES YES NO YES NO NO NO YES
KRC-479
RX-380 0-01 YES NO YES YES YES YES YES NO
C212-217, C503,
R519
MODEL NAME UNIT No. L306 C51 C104 C504 W6
-522 308 519,520
KRC-409 0-10 NO NO NO YES NO YES YES YES
KRC-489
0-21 NO NO YES YES NO YES YES YES
KRC-489G
KRC-309S 0-11 NO NO NO YES NO YES NO YES
KRC-389
KRC-389W 0-22 YES NO YES YES NO NO NO YES
KRC-479
RX-380 0-01 NO YES YES NO YES YES YES NO
1 5 1 5 0 8 9 2 4
AVR
IC7
13.6V 1
P.CON
2
EN2
13.6V 3
P.ANT
4
EN3
8.2V 5
FM+B
14.4V 6
VP2
8.2V 7
AM+B
0V 8
GND
8.2V 9
AUDIO
10
EN1
10.3V 11
ILLUM
5.0V 12
VP1
5.0V 13
BU5V
∗
J3
W508
1 ILL GND
0
2 D GND
3 LRST
R194 47
4 SW5V
X13
5 LAMP +B
-J1
W509 0
6 LED +B
R103 560
2/2
7 LDATAS
R104 470
8 L CLK
A
R105 560
9 L CE
R101 1K
10 LDATAL
m
11 VDD
R193 1K
12 RST
R187 1K
13 REMO
c o
∗
R197 1K
14 PANEL SW
15 ESD GND
P1
KRC-309S/389/389W,409/479,489/489G
S T
2
9 9
IC5 Q190
HA12216F YES
HA12216F YES
HA12216F YES
HA12221F YES
HA12216F NO
R197,
R184
198
NO YES
NO YES
YES YES
YES YES
NO NO
A1
X86-3280-11
X86-3280-11
X86-3280-11
X86-3280-11
X86-3280-01
9 8 2 9 9