Kenwood KDC-3031A User manual

© 2005-4 PRINTED IN JAPAN
B53-0268-00 (N)1078
CD RECEIVER
KDC-3031A/AY/G/GY_309A/G
_F331A/G_W4031/Y_W409/Y
_W431GY_W4531/Y_WF431A
SERVICE MANUAL
This product uses Lead Free solder.
/ PTY
MENU
VOL
AUD
FF
SET UP
SCAN RDM REP
SWITCH UNIT (X16) TYPE 2
KDC-3031A T0102901~ X16-3262-73 X34-3412-71 784225GC282A TDF-3031/O Y33-2280-62
KDC-3031AY T0200001~ X16-3262-73 X34-3412-71 784225GC282A TDF-3031/O Y33-2280-62
KDC-3031G T0100501~ X16-3262-74 X34-3412-72 784225GC282A TDF-3031/O Y33-2280-62
KDC-3031GY T0200001~ X16-3262-74 X34-3412-72 784225GC282A TDF-3031/O Y33-2280-62
KDC-309A T0100501~ X16-3262-73 X34-3412-71 784225GC282A TDF-309/O Y33-2280-64
KDC-309G T0200001~ X16-3262-74 X34-3412-72 784225GC282A TDF-309/O Y33-2280-64
KDC-F331A T0102001~ X16-3262-73 X34-3412-73 784225GC282A TDF-WF431/O Y33-2280-63
KDC-F331G T0100701~ X16-3262-74 X34-3412-74 784225GC282A TDF-WF431/O Y33-2280-63
KDC-W4031 T0115401~ X16-3262-72 X34-3402-72 784225GC281A TDF-W4531/O Y33-2280-60
KDC-W4031Y T0200001~ X16-3262-72 X34-3402-72 784225GC281A TDF-W4531/O Y33-2280-60
KDC-W409 T0100001~ X16-3262-72 X34-3402-72 784225GC281A TDF-W409/O Y33-2280-65
KDC-W409Y T0200001~ X16-3262-72 X34-3402-72 784225GC281A TDF-W409/O Y33-2280-65
KDC-W431GY T0200001~ X16-3262-74 X34-3402-73 784225GC281A TDF-W431GY/O Y33-2280-61
KDC-W4531 T0300001~ X16-3262-71 X34-3402-71 784225GC281A TDF-W4531/O Y33-2280-60
KDC-W4531Y T0100701~ X16-3262-71 X34-3402-71 784225GC281A TDF-W4531/O Y33-2280-60
KDC-WF431A T0105901~ X16-3262-75 X34-3402-74 784225GC281A TDF-WF431/O Y33-2280-63
Illustration is KDC-3031A
MODEL SERIAL No.
ELECTRIC UNIT MCU IC (IC1:X34) TDF NAME TDF PANEL No.
SWITCH UNIT
(TYPE2 UNIT)
This service manual handles only switch unit (X16) for type 2.
Besides, please refer to the service manual of each model.
Switch unit (X16) has been changed from the following serial number to type 2.
Following system microcomputer (IC1:X34) also changes at the same time as changing
switch unit (X16).

2
KDC-3031A/AY/G/GY_309A/G_F331A/G_W4031/Y
_W409/Y_W431GY_W4531/Y_WF431A
ABCDE
1
2
3
4
5
6
7
PC BOARD
(COMPONENT SIDE VIEW) (FOIL SIDEVIEW)
Refer to the schematic diagram for the
values of resistors and capacitors.
C64
C63
G
VO
1866 171
VCC
D34
D31
D70
D35
D32
D65
D36
D33
D42
D39
D41
D38
D37
D40
D46
D43
D44
D47
D48
D45
D54
D51
D52
D49
D61
D53
D50 D62
S11 ED1
S12
D64
D63
IC3
EJECT
AUTO
RESET
65321SRCQ
VOL
AUD
ATT 4
SWITCH UNIT
X16-3262-7x (J76-0140-02)
R78
R77
R63
R31
R62
R32
CP11
C12
C11
R81
R80
R19
R17
R16
R82
W6
W5
C61
R95
R59
W13
C15
R11
C68
R13
R15
R14
C10
W11
C69
R70
R98
R75
R74
R97
R68
C66
C22
R67
R96
R58
R60
W14
W12
R84
R85 R83
R86
R64
W2
W3
R65
R33
R90
R88
R91
R89
R87
R18
R61
R22
R21
C21
R94
R23
C62
R93
R34
CLK
REMO
DATAS
KI4
KI3
KS2
KI5
ESD GND
RTRY CCW
TDF DET
CS
ILL D GND
RST
PAN5V
PAN SW5V
FL SW11.25V
LED +B
INT
KS3
KI6 KS1 KS4
KI1
KI2
RTRY CW
FL+B
VFD RST
BE
2
115
14
1281
38
103
3964
102
65
B
E
EB
EB
EB
EB
EB
EB
EB
C65
D75
D73
D74
D72
D71
D77
D76
Q21
J1
Q11
Q10
Q24
Q12
Q13
Q22
Q23
D96
Q25
IC4
SWITCH UNIT
X16-3262-7x (J76-0140-02)
X16-3262-7x
Ref. No. Address
IC3 6B
X16-3262-7x
Ref. No. Address
IC4 4E
Q10 5E
Q11 5E
Q12 5E
Q13 6E
Q21 4E
Q22 6E
Q23 6E
Q24 6E
Q25 6D

3
KDC-3031A/AY/G/GY_309A/G_F331A/G_W4031/Y
_W409/Y_W431GY_W4531/Y_WF431A
ABCDE
1
2
3
4
5
6
7
X16-3262-7x (1/2)
Q21
D96
J1
D71
D72
D73
D74
D75
D76
D77
∗
A
1/2
J5
X34-
REMOTE
SENSOR
PAN
SW5V
Q24
Q23
Q22
VFD DRIVER
Q25
+B SW
TP32
FL SW11.25V
1
2
34
56
7
8
9
10
11
12
13
14
15
ILL D GND
PAN5V
RTRY CW
LED+B
FL+B
RST
VFD RST
VFD DATAF
VFD CE
VFD CLK
VFD DATAS
REMOTE
RTRY CCW
TDF DET
ESD GND
TP19
TP24
TP22
TP23
TP21
TP20
TP25
TP31
TP30
32
13
12
31
30
15
29
3
6
1
2
3
GND VO VCC
R22 100R21 100K
12
2.2
C21
IC3
100K
∗R23
FL+B
FL+B
470
R11
470
R13
220
R14
470
R15
470
R16
470
R17
470
R19
1K
∗R18
28 27 32 30 29 31 34 33 36 35 40 38 37 39 41 43 42 58 47 45 44 46 50 48 49 52 51 53 54 55 57 56 61 59 60 63 62 64
R80 47
R81 47
1/2W
1/2W
65 66
P36 P38 P39 P37 P40 P41
P42
5 9
7
8 6
4
2
3
1
S8
S7
S9
S10
G3
S11
S12
S14
S15
S6
S4
S5 S3
S2
S29
S41
S40
S45 S46
S44
G3
S43
G1
S42
S31
S30 S23 S28
S27
S26
G2
G1
S25
S24
S20
S21
S22
S18
S17
S16
S51
S50 S49 S48
S47
S46 S45
S44
S43
S42
S41
S40 S39 S38
S37
S36 S35
S34
S33
S32
S31
S30 S29 S28
S27
S26 S25
S24
S23
S22
S21
S20 S18
S17
S16
S15
S14
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
G1
G2
G3
KS1
KS2
KS3
KS4
TP48 TP46 TP49 TP47
TP50
TP44 TP43 TP51
KI4
KI3
KI2
TP45 TP41 KI6
KI5
N
C
N
C
SEG5
3
SEG5
2
SEG5
6
SEG5
5
SEG5
4
SEG5
9
SEG5
8
SEG5
7
SEG
6
SEG6
0
SEG6
4
SEG6
3
SEG6
2
SEG6
6
SEG6
5
SEG7
2
SEG6
8
SEG6
9
SEG6
7
SEG7
0
SEG
7
SEG7
3
N
C
N
C
55
65
SEG46 SEG47 SEG50 SEG49 SEG48 NC SEG51 NC
102
100
101
98 99 96
97
95
SEG36 SEG37 SEG40 SEG39 SEG38 SEG41 SEG42 SEG45 SEG44 SEG43
93
94
91
92
90 88 89 86
87
85 75 SEG26
SEG27 SEG30 SEG29 SEG28 SEG31 SEG32 SEG35 SEG34 SEG33
80 83
84
81
82
78 79 76
77
NC NC SEG19 SEG20 SEG18 SEG21 SEG22 SEG25 SEG24 SEG23
70 73
74
71
72
68 69 66
67
60
SEG17
SEG16
NC
63
64 NC
62
61
SEG12
SEG11
SEG15
SEG14
SEG13
59
58
56
57
37
ROW5
SEG81
SEG76 SEG75
SEG74
NC NC 2
1 3 4
SEG80 SEG79
SEG77
SEG78 7
6 5 8 9
INT
VDD
D-GND
SEG82
VDISP 12
11 10 13 14
ROW4
ROW3
ROW1
ROW2 17
16 15 18 19 27 22
COL2
COL1
20 21
COL6
DUP/TRI
COL4
COL3 COL5
23 24 26 25 32
CLOCK
RESET
BLANK
CS
DATA I/O
28 29 31 30
NC NC
L-GND
OSC0
NC
33 34 36 35
VDISP
SEG5
SEG7
SEG6
SEG10
SEG9
SEG8
54
53
50
52
51
SEG1
SEG4
SEG3
SEG2
47
49
48
46
GRID2
GRID3
45
44
GRID1
42
43
NC
D-GND
39
40 NC
41
NC
38
47K
R87
47K
R89
47K
R91 2.2K
R85
2.2K
R84
2.2K
R83
47K
R90
47K
R88
47K
R86
1K
R78
4.7
R74
C10
2.2
R98 47K
C68
470P
1
C69
15
32 29
30
31
27P
C15
10K
R75
R70 220
10
11
R93
22K
2.2K
R94
TP26
TP28
TP27
TP29
TP18
TP17
S1
W11
W14
TP70
PAN SW5V
P33 P35
F+ F+
P34
P32
P31
P30 P28 P29
P27
3GB
P26
1GB
P25 P23
P24
3GA
P22
P20
P21
P19 P18
P17
P16 P15 P13
P14
P11
2G
P12
1GA
P10
P7
P9 P8
1/2W
R82 47
IC3
(X16-3xxx-xx)
A
IC4
10K
10K
5V
0V
0V
5.0V
0V
11.3V
5.0V
0V or
0V
5V
5V
0V
5V
RST 0V
11.3V
0V
0V
11.3V
0V
11.3V
5.0V
0V
5V
0V
0V
11.3V
0V
(3GB/1GB/3GA/2G)
2G3GA1GB3GB
a
a
m
rn
b
b
c
c
d
d
k
h
e
e
f
f
g
g
p
j
(1GA)
S3
S5 S4
S7
S9 S8
S10
S6
S1
S2
S1
col
col
Downside
Upside
Dp
3a 1a 2a 1a 2a 1a 2a 3a

4
KDC-3031A/AY/G/GY_309A/G_F331A/G_W4031/Y
_W409/Y_W431GY_W4531/Y_WF431A
JIHGF
1
2
3
4
5
6
7
X16-3262-7x (2/2)
S12
S11
DISP
6
5
4
3
1Q
ATT
2 SRC
EJECT
RESET
D31D32D33
D34D35D36
D37D39 D38
D40D42 D41
D45 D48
D44 D43 D47 D46
D51
D54
D50 D49 D53 D52
∗
D61
∗
D62
∗
D64
∗
D63
∗
D65 D70
Q12
D71-77
D31-33,37-39,43-45,49-51,70
D34-36,40-42,46-48,52-54
D61-65
Q10,12
IC3
Q11,13,22-24
IC4
∗
B30-1567-05 (COLOR:RED)
∗
UDZS5.6B
2SC4081
DTA114EE
2SC4617
PNA4S22M
ML9228GAZ-A
2SA1774
:
:
:
:
:
:
:
:
GND LINE
B LINE
RED LED SW GREEN LED SW
ED1 3-BT-224N:
D96 : DA204U
Q13
Q10
Q11
∗
B
S41
S42
S43
S44
S37
S38
S23
S22
S21
S39
S35
S36
S24
S25
S31
S32
S28
S27
S26
S29
S34
S33
∗
D
∗
C
Q25
Q21 :
:
S1
ESD GND
CP11 10K
25 34 16
VOL
VOL
AUDIO
0.01
C12
3
13
KS2
KS1
KS3
KS4
KI2
KI3
KI4
KI6
470
R31
470
R32
R33
470
R34
470
∗C61 0.01
∗C62 0.01
∗R61
∗C64 0.01 ∗C63 0.01
∗R62
∗C65 0.01
∗R63
∗W2
22K
R95
∗W3
IC3
6
21 18 20 19 25 23 22 24 28 26 27 29
12
P46 P48 P47 P49
17
16
14
15 13
P40 P41 P42 P43 P45 P44
10
11
9
7
8
6
S29
S41
S50
S51
S40 S49
S47
S48
S42
S39 S38
S37
S36 S35 S33
S31
S32
S30
C11
0.01
110
NC 104
103
NC
107
106
105
109
108
SEG53
SEG52
SEG56
SEG55
SEG54
120
115
111
112
114
113
SEG59
SEG58
SEG57
SEG61
SEG60
117
116
119
118
SEG64
SEG63
SEG62
SEG66
SEG65
SEG72
123
122
121
125
124
SEG68
SEG69
SEG67
SEG70
SEG71
128
127
126
SEG73
NC
NC
SEG74
NC NC 2
1
3
10
0.1
C22
47K
R96
22K
R68
2.2K
R64
47K
R65
11
C66
0.1
R58
47K
R59
22K R67 22K R60
2.2K
47K
R97
KI5
W6
S34
X16-3282-74 B30-1729-05
B30-1729-05
X16-3260-01
X16-3260-02 YES B30-1575-05
B30-1575-05 YES
YES 470
470
YES 300
300
300 300 YES
YES
D61-65
B30-1729-05 B30-1533-05 B30-1567-05 B30-1729-05 B30-1729-05 B30-1729-05 B30-1567-05 B30-1729-05 B30-1533-05
X16-3312-12
YES YES YES YES
X16-3302-71
X16-3262-74
X16-3262-75 X16-3282-73 X16-3262-73
X16-3282-72
X16-3302-70
X16-3262-72
X16-3282-71 X16-3262-71
X16-3282-70
YES YESYES
B30-1533-05
YES
B30-1533-05 B30-1533-05 YES
YES
C
YES YESX16-3260-10 YES
X16-3260-22
X16-3260-23
X16-3312-11 X16-3260-21
X16-3312-10
YES YES YES
No.
UNIT AB
YES
B30-1533-05 B30-1533-05
YES
D65
C61-
470 470
680
470
560
YES YES YESYES
YES YES
560 300
620
300
6801K
YESYES
YES
300300 300300
YES
YES YES
R63
470
560
680
470300300YES
YES YES YES
680
560620
1K
300300
R23R18 R62R61
YES
YES YES
YES
W2 W3
F-
P7
P9 P8 P5 P6
P4
P2
P3
F-
P1
FM+
AM-
MODEL NAME
KDC-MP2028 KDC-MP4029/G KDC-228 KDC-3029/R KDC-2029 KDC-W4531/Y KDC-W4031/Y KDC-W409/Y KDC-3031A/AY KDC-3031G/GY KDC-309A KDC-F331A KDC-309G KDC-F331G E303/S E303MD KDC-MP228 KDC-MP3029 KDC-W431GY KDC-WF431A
KDC-3031A/AY/G/GY_309A/G_F331A/G_W4031/Y
_W409/Y_W431GY_W4531/Y_WF431A(OKI) (2/2)
ANODE CONNECTION
1GA
2
S1
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
P14
P15
P16
P17
P18
P19
P20
P21
P22
P23
P24
P25
P26
P27
P28
P29
P30
P31
P32
P33
P34
P35
P36
P37
P38
P39
P40
P41
P42
P43
P44
P45
P46
P47
P48
P49
—
2d
1d
2n
1n
2p
1p
2r
1r
2e
1e
2c
1c
2g
1g
2m
1m
2f
1f
2a
1a
2h
1h
2j
1j
2k
1k
2b
1b
—
col
3d
3n
3p
3r
3e
3c
3g
3m
3f
3b
3k
3j
3h
3a
S1
2d
1d
2n
1n
2p
1p
2r
1r
2e
1e
2c
1c
2g
1g
2m
1m
2f
1f
2a
1a
2h
1h
2j
1j
2k
1k
2b
1b
S2
S3
S4
S5
S6
S7
S8
S9
S10
d
e
c
g
f
b
a
col (Downside)
2d
1d
2n
1n
2p
1p
2r
1r
2e
1e
2c
1c
2g
1g
2m
1m
2f
1f
2a
1a
2h
1h
2j
1j
2k
1k
2b
1b
col (Upside)
—
—
—
—
Dp
3d
3n
3p
3r
3e
3c
3g
3m
3f
3b
3k
3j
3h
3a
3GA,3GB 2G
PIN
NAME 1GA,1GB
CAUTION : For continued safety, re-
placesafety criticalcomponents onlywith
manufacturer’s recommended parts (re-
fer to parts list).
Indicates safety critical components.
To reduce the risk of electric shock, leak-
age-current or resistance measurements
shall be carried out (exposed parts are
acceptably insulated from the supply cir-
cuit) before the appliance is returned to
the customer.
•DC voltages are as measured with a
highimpedance voltmeter.Valuesmay
vary slightly due to variations between
individual instruments or/and units.
DTA114EE
2SC4617
2SA1774
2SC4081
DA204U

5
KDC-3031A/AY/G/GY_309A/G_F331A/G_W4031/Y
_W409/Y_W431GY_W4531/Y_WF431A
Indicates safety critical components.
✽New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Ref. No. A
d
dN
e
wParts No. Description Desti-
nation Ref. No. A
d
dN
e
wParts No. Description Desti-
nation
PARTS LIST
D31-33 B30-1567-05 LED (1608, RED) E1E2
D31-33 B30-1567-05 LED (1608, RED) E3E5
D34-36 B30-1533-05 LED (1608, PG)
E1E2E4
D37-39 B30-1567-05 LED (1608, RED) E1E2
D37-39 B30-1567-05 LED (1608, RED) E3E5
D40-42 B30-1533-05 LED (1608, PG)
E1E2E4
D43-45 B30-1567-05 LED (1608, RED) E1E2
D43-45 B30-1567-05 LED (1608, RED) E3E5
D46-48 B30-1533-05 LED (1608, PG)
E1E2E4
D49-51 B30-1567-05 LED (1608, RED) E1E2
D49-51 B30-1567-05 LED (1608, RED) E3E5
D52-54 B30-1533-05 LED (1608, PG)
E1E2E4
D61-65 B30-1533-05 LED (1608, PG) E4
D61-65 B30-1567-05 LED (1608, RED) E3
D61-65 B30-1729-05 LED (1608, BLUE)
E1E2E5
D70 B30-1567-05 LED (1608, RED)
C10 CK73GB0J225K CHIP C 2.2UF K
C11,12 CK73GB1H103K CHIP C 0.010UF K
C15 CC73GCH1H270J CHIP C 27PF J
C21 CK73FB1A225K CHIP C 2.2UF K E1
C22 CK73GB1C104K CHIP C 0.10UF K E1E2
C61-65 CK73GB1H103K CHIP C 0.010UF K
E1E2E5
C66 CK73GB1C104K CHIP C 0.10UF K E1E2
C68 CK73GB1H471K CHIP C 470PF K
C69 CK73FB1C105K CHIP C 1.0UF K
J1 E59-0840-05 RECTANGULAR PLUG (15PIN)
CP11 RK74HB1J103J CHIP-COM 10K J 1/16W
R11 RK73GB2A471J CHIP R 470 J 1/10W
R13 RK73GB2A471J CHIP R 470 J 1/10W
R14 RK73GB2A221J CHIP R 220 J 1/10W
R15-17 RK73GB2A471J CHIP R 470 J 1/10W
R18 RK73GB2A102J CHIP R 1.0K J 1/10W
R19 RK73GB2A471J CHIP R 470 J 1/10W
R21 RK73GB2A104J CHIP R 100K J 1/10W E1
R22 RK73GB2A101J CHIP R 100 J 1/10W E1
R23 RK73GB2A104J CHIP R 100K J 1/10W E2E3
R23 RK73GB2A104J CHIP R 100K J 1/10W E4E5
R31-34 RK73FB2B471J CHIP R 470 J 1/8W
R58 RK73GB2A473J CHIP R 47K J 1/10W E1E2
R59 RK73GB2A223J CHIP R 22K J 1/10W E1E2
R60 RK73GB2A222J CHIP R 2.2K J 1/10W E1E2
R61 RK73EB2E102J CHIP R 1.0K J 1/4W E3
R61 RK73EB2E621J CHIP R 620 J 1/4W E4
R61,62 RK73EB2E301J CHIP R 300 J 1/4W
E1E2E5
R62,63 RK73EB2E561J CHIP R 560 J 1/4W E4
R62,63 RK73EB2E681J CHIP R 680 J 1/4W E3
R63 RK73EB2E471J CHIP R 470 J 1/4W
E1E2E5
R64 RK73GB2A222J CHIP R 2.2K J 1/10W E1E2
R65 RK73GB2A473J CHIP R 47K J 1/10W E1E2
R67,68 RK73GB2A223J CHIP R 22K J 1/10W E1E2
R70 RK73GB2A221J CHIP R 220 J 1/10W
R74 RK73GB2A4R7J CHIP R 4.7 J 1/10W
R75 RK73GB2A103J CHIP R 10K J 1/10W
R78 RK73GB2A102J CHIP R 1.0K J 1/10W
R80-82 R92-1245-05 CHIP R 47 J 1/2W
R83-85 RK73GB2A222J CHIP R 2.2K J 1/10W
R86-91 RK73GB2A473J CHIP R 47K J 1/10W
R93 RK73GB2A223J CHIP R 22K J 1/10W
R94 RK73GB2A222J CHIP R 2.2K J 1/10W
R95 RK73GB2A223J CHIP R 22K J 1/10W E1E2
R96,97 RK73GB2A473J CHIP R 47K J 1/10W E1E2
R98 RK73GB2A473J CHIP R 47K J 1/10W
W2 R92-1252-05 CHIP R 0 OHM J 1/16W E4
W3 R92-1252-05 CHIP R 0 OHM J 1/16W E3E5
W6 R92-1252-05 CHIP R 0 OHM J 1/16W
W11 R92-1252-05 CHIP R 0 OHM J 1/16W
W14 R92-1252-05 CHIP R 0 OHM J 1/16W
S12 S70-0106-05 TACT SWITCH
S11 T99-0457-15 ROTARY ENCODER
D71-77 UDZS5.6B ZENER DIODE
D96 DA204U DIODE E1
ED1 3-BT-224N
FLUORESCENT INDICATOR TUBE
IC3 PNA4S22M ANALOGUE IC E1
IC4
✽ ML9228GAZ-A MOS-IC
Q10 2SC4617 TRANSISTOR E1E2
Q11 2SA1774 TRANSISTOR E1E2
Q12 2SC4617 TRANSISTOR E1E2
Q13 2SA1774 TRANSISTOR E1E2
Q21 DTA114EE DIGITAL TRANSISTOR
Q22-24 2SA1774 TRANSISTOR
Q25 2SC4081 TRANSISTOR
IC1
✽ 784225GC281A MCU IC #
IC1
✽ 784225GC282A MCU IC #
SWITCH UNIT (X16-3262-7x)
ELECTRIC UNIT (X34-3412-7x)
ELECTRIC UNIT (X34-3402-7x)
E1 : KDC-W4531/W4531Y E2 : KDC-W4031/W4031Y/W409/W409Y
E3 : KDC-3031A/3031AY/309A/F331A E4 : KDC-3031G/3031GY/309G/F331G/W431GY
E5 : KDC-WF431A #:Refer to cover page

KDC-3031A/AY/G/GY_309A/G_F331A/G_W4031/Y
_W409/Y_W431GY_W4531/Y_WF431A
MEMO