Kenwood KDC-305RG Service Manual page 9

A B
(X25-871X-XX)
IC1
IC2
UNIT R139,170,
MODEL NAME C D C404 R135 R136 R137 R138 R140
IC4
No. 171,412-414
IC6
KDC-4590RY 2-70 YES YES YES YES NO NO YES YES NO
IC7
KDC-4590RYV 2-75 YES YES YES YES NO YES NO YES NO
IC8
KDC-4090RY 2-71 YES NO YES NO YES NO YES YES NO
IC11
KDC-3018R 2-74 NO NO NO NO NO NO YES
YES YES IC12
2-72
KDC-3090RG
KDC-3090RA 2-73
NO NO NO NO YES YES NO NO YES
KDC-3090RYG 2-73
KDC-3090RYA 2-73
KDC-305RG
2-72 NO NO NO NO NO NO YES NO YES
J4
1 REQ H 7 RST
∗
13 11 12 8 4 3 2 1 5 9
2 GND 8 Rch
C
3 B.U 9 REQ C
9 10 6 7 5 1
4 CHCON 10 DATA C
2 6 10
5 MUTE 11 DATA H
6 A GND 12 Lch
3 7 11
13 CLK
4 8 12
∗
REAR
D
FRONT
J5 CN2
1 2 3
R227 R228 R225 R226
30K 30K 30K 30K
Q223 Q224 Q221 Q222
MUTE
REAR FRONT
Q40
5.0V
IC8
60
IC11
RESET
MUTE DRIVE 5V
0V
18
R127
61
2.2K
R204
Q201
17
1K
63
5V
0V
R129
64
2.2K
KEY
R130
66
2.2K
IC6 RDS 5.0V
R351 R353
2.2K 5V 2.2K C104 R131
1 16
15 QUAL 0V RDCL
15P 6.8K
R352
X1
2.2K 2 5V 15
14 RDDA T57 C105 4.19MHz
0V
C351
C356 15P R120
14
10u6.3 3
OSCO
VREF 2.4V
+ 10P 10K
C352
330P 4 13 C355
MPX OSCI
5 12 10P
OSEL 5.0V VCC
6 11
GND 0V EXTRES
7 10
ARI TM
8 9
FI 1 OUT F SEL
R134
2.2K
Q102
47K
10K
ILL+B
15 13 11 9 7 5 3 1
14 12 10 8 6 4 2
J3
C D
: UPD780058GC251 D1 : S2V20 A D30 : MA4047-M or
: TDA7407D D2,40,50,101,103,104,251-253 HZS5B1
: TDA7386 : 1SS133 D51 : MA4082(N)-L or
: TDA7479D D4 : SA-C2012-101TB or HZS9A1L
: BA4911-V4 IMSA-6801 D102 : B30-1567-05
: HD74HC27FP D10,20,70,201,202,401,402 D106,107,403,404,409-411
: S-80830ANNP : MA4068(N)-M : MA4062-L or
: BR24CO1AF D13,14,261-263,265,266 HZS6C1
: AM01Z or D264,267,268 : D1F60
DSM1SD2 or
ERA15-02
(X25-871X-XX)
13
D268
D264
D266
D262
41 R261 R260
430
R256
1K
Q251
10K
40
47K
38
BU5V
SW5V
77
43
+5V
5.0V
0V 1
CP1
2
10K
CP3 CP2
3
1K 2.2K
4
R264
47K
0V
61
REMO
5V
0V
5.0V
5V
40
0V
0V SVR
62 5V
0V or 5.0V
R-CLK 5V
0V
0V
5V 5V
or 0V 39
63
0V 0V
CH-REQC P-MUTE
38
MUTE
5V
0V 37 R117 1K
CLK
5V
64
5V
CD-SW1 0V 36 R115 1K
5V 0V DATA
65
0V
KEY-REQ
66
CD-SW2
67
0V
VSS 0 5V
68 0V
VDD 1
35 R114 47K
69
IC2 TYPE0
X2
R113 47K
34
IC2 TYPE1
33
VSS 1
70 IC1 0V
X1
32
71 u-COM 0V or 5.0V TYPE0 ∗
IC 0V
R139
72
XT2
73 31 47K
XT1 5.0V 0V or 5.0V TYPE1 ∗
74 R137
VDD 0
5V 47K
75 30
AVREF0 0V 0V or 5.0V TYPE2 ∗
29 R135
76
5.0V TYPE REF
S-METER
0-4.0V
47K
28
CH-CON
5V
27 R110
0V SD
77 26 4.7K
0.6-4.1V N.C
PHONE
25
78 5V 5V N.C
NOISE 2.2-4.5V
0V 5V 0V 24
79
N.C
5V 0V
N.C 23
5V
80 0V R109
N.C
AV CONT 0V 5.0V
22 2.2K
5V 5V
0V LO/DX
5V
0V 5V 0V
0V 21 R58
0V
AFS
4.7K
28
ILL+B
E F
Q10,20,70,101,201 Q102 : DTA114YUA or
: 2SC4081 or UN5114
2SD1819A Q221-224 : DTC143TUA or
Q40 : DTA124EUA or UN5216
UN5112 Q251 : DTC114YUA or
Q50 : 2SA1036K UN5214
Q51,53 : UMC2N Q301 : DTC124EUA or
Q55 : 2SD2375 or UN5212
2SD2396
SIGNAL LINE
B LINE
J2
16 15 14 13 12 11 10 9
POWER
IC4 1 2 3 4 5 6 7 8
AMP
3.4V D267
SURGE
DET
D261
Q70
D263
D265
TEL R10
ACC DET
MUTE 30K
Q20
R21
D20
33K
Q10
BU DET
43
C258
750 1u50
+ AUDIO+B
D251 TH1
49
Q53
D50
47
42
52
5.0V
IC12
8
Q101
VCC
7
WP
0V
6
SCL
VSS
5
SDA
L201
4.7uH
5.0V
0V
E.VOL
IC2
28 1
C203
AC OUT L VREF
27 2 2.2u50
4.1V
AC OUT R CREF
+
C205
2.2u50
26 3
4.0V L 3
FL OUT FL 4.1V
+
25
R119 47K FR OUT FR
24
C204
RL OUT RL
4 2.2u50
R118 10K 23
RR OUT RR R 4
+
R116 10K
5
22
CDR 5
VDD 8.2V
6
21
CD GND 6
GND
0V
7
CDL 7
8
PH-
W21
9
AFS
C206 R201
10 0.015 2.7K
20 AM AM
∗ SDA SDA
5.0V
R140 19
SCL SCL 0V
47K 11 C207 R202
18
∗ MPX FM
18 S MUTE 3.5V
R138 0.47 4.7K
47K
∗ 12
LEVEL
R136
17
17 QUAL 0V
47K
16 13 4.7V
OUT R MP IN
15 14 1.0V
27
OUT L MP OUT
22
21
R141 R144
100K 100K
R143
2.2K
1 3 5 7 9 11
2 4 6 8 10 12
P1 CN1
to CD MECHANISM
G H
SP. OUT
SP. OUT
ANT CONT
P. CONT
FUSE
ACC
AM+B
FM+B
GND
POWER
R71 SUPPLY
D70 82K
IC7
1
0V
GND
D13
14.0V 2
P-CON
D10
3
P-ANT
8.1V
4
FM +B
7.9V 5
AM +B
8.1V 6
AUDIO +B
SW5
14.3V 7
VCC
Q50
5.0V
8
BU 5V
5.0V
9
V BU
7
5
3 VDD
1
10
SW 1
4
3 VDD
1
11
SW 2
10.3V 12
ILLUM
Q51
SW14V
J1
L4
52mH
Q55
D4
TUNER
A1
SERVO
(X86-3302-71)
C302
0.01
1
RF GND
C301
100u10
2
+ FM ANT
3
AM ANT
L303 4.7uH
4
FM +B
L304 4.7uH 5
AM +B
R302
6
AM LO/DX
4.7 7
FM LO/DX
8
IF SELECT
22K
22
Q301
22K
9
4 RDS OUT
10
REQUEST
11
K2I-VTH
12
VCO GND
13
27 FM SD OUT
14
76 FSD OUT
15
FM FM DET OUT
16
AM AM DET OUT
L305
R301 17
COMMON +B
2.2 4.7uH
18
IF GND
19
HI UP ADJ
20
20 PLL CE
21
9 PLL DATA
22
10 PLL CLK
L306 23
P-ON 5V
4.7uH 24
DIG GND
R145
2.2K
13 15 17 19 21
14 16 18 20 22
1/2
KDC-305RG/3018R/3090R/A/G/YA/YG
I
1
WHT GRN
8 9
FRONT L REAR L SP. OUT
WHT/BLK GRN/BLK
7 10
GRY/BLK VIOL/BLK
6 11
FRONT R REAR R SP. OUT
GRY VIOL
5 12
4 13
BLU/WHT BRN
ANT CONT/ TEL MUTE
3 14
P. CONT
RED
2 15
BLK YEL
1 16 BU
DC CORD
(E30-4785) 2
KDC-3018R
WHT GRN
FL+ 8 9 RL+
WHT/BLK GRN/BLK
FL- 7 10 RL-
GRY/BLK VIOL/BLK
FR- 6 11 RR-
GRY VIOL
FR+ 5 12 RR+
ANT CONT/ BLU/WHT
4 13
P. CONT
BLU/WHT BRN
TEL MUTE
3 14
RED
2 15
BLK YEL
1 16
MOLEX
3
CONNECTOR
7 5 3 1
B
8 6 4 2
ISO CONNECTOR
7 5 3 1
A
8 6 4 2
BUP
DC CORD
(E30-4790) 4
KDC-4090RY/4590RY/305RG/
3090RG/3090RYG/3090RA/3090RYA
WHT GRN
FL+ 8 9 RL+
WHT/BLK GRN/BLK
FL- 7 10 RL-
GRY/BLK VIOL/BLK
FR- 6 11 RR-
GRY VIOL
FR+ 5 12 RR+
ANT CONT/ BLU/WHT
4 13
P. CONT
BLU/WHT BRN
TEL MUTE
3 14
RED
2 15
BLK YEL
1 16
MOLEX
CONNECTOR 5
7 5 3 1
B
8 6 4 2
ISO CONNECTOR
7 5 3 1
A
8 6 4 2
BUP
DC CORD 6
(E30-4791)
KDC-4590RYV
X13-
J1
2/2
A
7