KENWOOD KDC-1020S Service Manual

Cover page of KENWOOD KDC-1020S Service Manual

Service Manual for KENWOOD KDC-1020S, downloadable as a PDF file.

We also have owner's manual to this model.

Manual details

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Sample pages

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© 2001-12 PRINTED IN JAPAN
B51-7875-00 (N) 1754
CD RECEIVER
KDC-1020/1020S
KDC-119/119S
SERVICE MANUAL
COMPACT
DIGITAL AUDIO
RDM
LOUD
REP
SCAN
OFF
KDC-1020
CRSC
AME
AUTO
ADJ
CLK
AUD
50Wx4
COMPACT
DIGITAL AUDIO
RDM
LOUD
REP
SCAN
OFF
KDC-119
CRSC
AME
AUTO
ADJ
CLK
AUD
45Wx4
Panel assy
(A64-2557-02): KDC-1020
(A64-2679-02): KDC-1020S
Front glass
(B10-4145-01): KDC-1020
(B10-4233-01): KDC-1020S
Mounting hardware assy
(J21-9641-13)
DC cord
(E30-4783-05): KDC-119/119S
(E30-4784-05): KDC-1020/1020S
Lever
(D10-4589-04)x2
Screw set
(N99-1719-05)
Panel assy
(A64-2556-02): KDC-119
(A64-2559-02): KDC-119S
Front glass
(B10-4144-01): KDC-119
(B10-4147-01): KDC-119S
Escutcheon
(B07-3054-02): KDC-1020
(B07-3055-02): KDC-1020S
Escutcheon
(B07-3054-02): KDC-119/119S
The CD mechanism infomation is not in this sarvice manual.
Please, refer to sarvice manual X92-4030-0x (B51-7867-00).
CD mechanism extension cord : W05-0618-00
background image
© 2001-12 PRINTED IN JAPAN
B51-7875-00 (N) 1754
CD RECEIVER
KDC-1020/1020S
KDC-119/119S
SERVICE MANUAL
COMPACT
DIGITAL AUDIO
RDM
LOUD
REP
SCAN
OFF
KDC-1020
CRSC
AME
AUTO
ADJ
CLK
AUD
50Wx4
COMPACT
DIGITAL AUDIO
RDM
LOUD
REP
SCAN
OFF
KDC-119
CRSC
AME
AUTO
ADJ
CLK
AUD
45Wx4
Panel assy
(A64-2557-02): KDC-1020
(A64-2679-02): KDC-1020S
Front glass
(B10-4145-01): KDC-1020
(B10-4233-01): KDC-1020S
Mounting hardware assy
(J21-9641-13)
DC cord
(E30-4783-05): KDC-119/119S
(E30-4784-05): KDC-1020/1020S
Lever
(D10-4589-04)x2
Screw set
(N99-1719-05)
Panel assy
(A64-2556-02): KDC-119
(A64-2559-02): KDC-119S
Front glass
(B10-4144-01): KDC-119
(B10-4147-01): KDC-119S
Escutcheon
(B07-3054-02): KDC-1020
(B07-3055-02): KDC-1020S
Escutcheon
(B07-3054-02): KDC-119/119S
The CD mechanism infomation is not in this sarvice manual.
Please, refer to sarvice manual X92-4030-0x (B51-7867-00).
CD mechanism extension cord : W05-0618-00
background image
KDC-1020/S/119/S
2
BLOCK
DIA
GRAM
CD
IC4
IC12
IC1
POWER IC
TUNER
FM+B
AM+B
SW5V
BU5V
A8V
SERVO
CH
BACK UP
E-VOL & MPX
u-COM
BU5V
TEL-MUTE
ACC DET.
BU DET.
IC2
SW5V
E2PROM
SW5V
SERVO
SW14V
IC7
IC2
IC1
PRE OUT
SP-OUT
ACC
TEL-MUTE
BACK-UP
P-CON
ANT-CONT
POWER SUPPLY
MUTE
PRE MUTE
DSI
BU5V
REMOTE
SW5V
PAN DET.
PAN5V
PAN5V
LCD DRIVER
KEY MATRIX
With
ILLUM SW
A8V
CONTROL
BU5V
MARINE CN.
ANT-CON DET.
P-CON DET.
FM DET OUT
AM DET OUT
REQUEST
LO/DX
PLL-CLK
PLL-CE
S-METER
PLL-DATA
SD
MSDA
MSCLK
SW2
SW1
SW3
M MUTE
RST
STOP
LO/EJ
MO SW
RST
CH-CON
MUTE
DATA C
REQ H
DATA H
CLK
REQ C
FM
AM
CD
CH
AFS
NOISE DET
LEVEL
D
ATA
S
MUTE
LO/DX
PLL-D
A
T
A
PLL-CLK
AFS
NOISE
S-METER
SCL
SD
SD
A
PLL-CE
EN2
EN3
EN1
PC DET
PA DET
CLK
D
ATA
L
CE
REMO
P
ANEL
DSI
RES
SDA
SCL
P-CON
P.ANT
FM+B
VP2
AM+B
AUDIO
ILLUM
BU5V
SW1
SW2
203mV
170mV
1200mV
1200mV
382mV
K:
E:
382mV
J:
(K)
FM
(E)
(K)
(J)
(J)
AM
(E)
: 1605mV
: 1276mV
: 561mV
: 1700mV
: 561mV
: 792mV
: 3529mV
CD.CH
LCD
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KDC-1020/S/119/S
3
MICROCOMPUTER'S TERMINAL DESCRIPTION
SYSTEM MICROCOMPUTER
µPD780058GC-XXX (IC1 : X25)
Pin No.
Pin Name
I/O
Purpose
Processing in STBY Mode
1
PANEL
I
Panel detection
Hi-Z
2
8EJE SW *1
I
8 cm disk eject end detection switch
L, L when the 8 cm CD compatibility is not provided.
3
NC
O
Not used
L
4
AVss
-
GND potential (for A/D and D/A)
-
5
L-RST
O
LCD driver reset
H, L when the panel is detached or with 7-segment output.
6
L-CE
O
LCD driver chip enable
L, L is output when the panel is detached.
7
AVREF1
I
5V power supply (D/A converter reference voltage)
-
8
NC
I
Not used
Hi-Z
9
PLL-DATA
I/O
F/E (IC3) communication data
L
10
PLL-CLK
O
F/R (IC3) communication clock
L
11
L-DATAL
I
LCD driver communication data (LCD)
Hi-Z
12
L-DATAS
O
LCD driver communication data (SYSTEM)
L, L is output when the panel is detached.
13
L-CLK
O
LCD driver communication clock
H, L is output when the panel is detached.
14
R-DATA
I
RDS DATA
Hi-Z, L when RDS is not available.
15
R-QUAL
I
RDS QUAL
Hi-Z, L when RDS is not available.
16
CH-DATAC
I
5-wire communication data (CH)
Hi-Z, L when CH is not available.
17
CH-DATAH
O
5-wire communication data (HEAD)
L, L when CH is not available.
18
CH-CLK
I/O
5-wire communication clock
Hi-Z, L when CH is not available.
19
CH-REQH
O
5-wire CH request (HEAD)
H, L when CH is not available.
20
PLL-CE
O
F/E chip enable
L
21
AFS
O
Noise detection time constant switching
L
22
LO/DX
O
Local seek switching
L
23~26
NC
O
Not used
L
27
SD
I
Station detection
Hi-Z
28
CH-CONT
O
5-wire communication CH ON output
L, L when CH is not available.
29
TYPE REF
O
Destination type and servicing setting 5V output
L
30
TYPE2
I
Destination type setting
Hi-Z
31
TYPE1
I
Destination type setting
Hi-Z
32
TYPE0
I
Destination type setting
Hi-Z
33
Vss1
-
GND potential (for other parts than ports and analog circuitry)
-
34
IC2TYPE1
I
Servicing pin (SEL1), normally "L"
Hi-Z
35
IC2TYPE0
I
Servicing pin (SEL0), normally "L"
Hi-Z
36
DATA
I/O
IC2, CD mechanism and F/E communication data
L
37
CLK
O
IC2, CD mechanism and F/E communication clock
L
38
MUTE
O
Muting control output
L, 15 sec. after power OFF.
39
P-MUTE
O
PWR IC muting output
H, 15 sec. after power OFF.
40
SVR
O
SVR control output
L
41
P-STBY
O
PWR IC standby output
L
42
SW5V
O
SW5 control output
"H" in 10 sec. after power OFF.
43
B.U-DET
I
B.U. detection
Hi-Z
44
ACC-DET
I
ACC detection
Hi-Z
45,46
NC
O
Not used
L
47~49
PS1-0~PS1-2
O
Power supply IC AUD/P.CON/P.ANT SW
L
50
BEEP
O
Buzzer output
L
51,52
PS2-0,PS2-1
O
Power supply IC ILL/AM/FM SW
L
53
DSI
O
DSI control output
L, H/L when panel is detached. FIX output is L.
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KDC-1020/S/119/S
4
MICROCOMPUTER'S TERMINAL DESCRIPTION / ADJUSTMENT
Pin No.
Pin Name
I/O
Purpose
Processing in STBY Mode
54
LOE/LIM SW
I
CD mechanism Down & Limit detection
Hi-Z
55
MOSW
O
CD mechanism motor switching
L
56
LO/EJ
I/O
Lo/Ej switching
Hi-Z
57
M-STOP
O
Mechanism COM stop output
L
58
M-RST
O
Mechanism COM reset output
H
59
M-MUTE
I
Mechanism COM mute input
Hi-Z
60
RESET
I
System reset input
Hi-Z
61
REMO
I
Remote control input
Hi-Z
62
R-CLK
I
RDS CLOCK
Hi-Z, L when RDS is not available.
63
CH-REQC
I
5-wire CH request (CH)
Hi-Z, L when CH is not available.
64
LOS SW
I
Loading SW detection
Hi-Z
65
KEY-REQ
I
Key input detection
Hi-Z
66
12EJE SW
I
12 cm disc detection
Hi-Z
67
Vss0
-
GND potential (for ports)
-
68
VDD1
-
Positive power supply (for other parts than ports and analog circuitry)
-
69
X2
-
Main system clock oscillation
-
70
X1
I
Main system clock oscillation
-
71
IC
-
Flash uCOM write
-
72
XT2
-
Not used
-
73
XT1
-
Not used (Connected to 5V power supply)
-
74
VDD0
-
Positive power supply (for ports)
-
75
AVREF0
I
5V power supply (A/D converter reference voltage)
-
76
S-METER
I
S-meter input
Hi-Z
77
PHONE
I
Navigation muting 2.5V or more, Telephone muting 1V or less. Hi-Z, L when TEL is not available.
78
NOISE
I
FM noise detection
Hi-Z, L when RDS is not available.
79
NC
O
Not used
L
80
AVCONT
O
A/D reference voltage control
L
No.
ITEM
INPUT SETTINGS
TUNER (RECEIVER)
ALIGNMENT
ALIGN FOR
SETTINGS
POINTS
FM SECTION
98.1MHz
TEST MODE : ON
While holding preset "1" key, press and
1SD
0 dev
FM
Preset "1" key, and
hold preset "6" key for a few seconds.
35dB
µ (ANT input)
98.1MHz
preset "6" key
"1111" is good.
"0000" is not good.
AM SECTION
990kHz
TEST MODE : ON
While holding preset "1" key, press and
(1)
SD
0% mod
AM
Preset "1" key, and
hold preset "6" key for a few seconds.
35dB
µ (ANT input)
990kHz
preset "6" key
"1111" is good.
"0000" is not good.
TEST MODE : ON
While holding the FM key and preset "6" key, reset the unit.
TEST MODE : OFF
Reset the unit.
ADJUSTMENT
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A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
6
5
PC BOARD
(COMPONENT SIDE VIEW)
Refer to the schematic diagram for the values of resistors and capacitors.
IC1
D267
D264
D268
D13
D11
Q20
Q201
IC2
IC6
Q102
Q224
Q223
Q222
Q251
Q51
Q50
Q221
Q101
Q53
IC8
IC11
IC12
D102
Q40
Q10
Q70
J1
X25-9142-7x (J74-1368-12)
CN3
CN1
CN2
J2
J3
A1
D108
Q55
D1
D403
D265
D266
D263
D261
D262
D14
D12
D110
D251
D101
D103
D104
D253
D252
D109
D106
D107
J5
P1
D30
D202
D201
D10
D50
D20
D404
D402
D401
D407
D411
D410
D409
IC4
J4
D111
D70
D51
IC7
D40
X25-9120-xx/913x-xx (J74-1290-12)
R56
W157
R123
C211
W160
C208
C104
C62
W156
C225
R139
C307
W163
W164
C226
W167
W168
C59
R57
W166
C356
C355
TH1
R127
R126
R128
R130
R129
R125
R122
R138
R137
R143
R144
R132
R131
R133
R140
R134
R119
R104
R103
R105
R107
R106
R102
R136
R135
C207
R67
R115
R114
R116
R118
R117
R113
R108 R110
R112
R111
R261
R260/W178
R263
R255
R254/W176
R256
R258
R257
R413
R412
R414
R415
C30
C21
R202
R201
R203
R205
R204
C103
C202
C206
C142
C106
C102
R251/W177
R222
R221
R223
R224
C354
R12
R23
R22
C404
R11
C305
C303
C302
R10
R52
R58
R51
R31
C209
C210
R32
W179
CP3
C352
W162
W161
R53
C64
C310
R54
C60
R55
C61
CP1
W151
W158
C40
W152
C309
W165
R264
CP2
W159
C105
R121
W155
W150
C500
R71
R72
C228
R73
W169
W171
W172
W173
W174
C501
R142
C311
C312
C313
80
61
40
21
1
20
41
60
21
4
3
17
8
14
14
5
8
114
15
28
1
16
8
9
E
B
E
B
EBE
EE
B
BE
B
E
E
B
B
E
E
B
E
B
E
B
E
B
E
B
E
BE
B
W53
W54
W142
W66
W79
C58
W38
C1
W82
L1
W108
W119
W85
W112
W132
W81
W137
W58
W44
W55
W37
R404
R402
R408
R411
R409
R410
R407
R405
R406
R403
R401
R231
R232
W91
W1
R227
R228
W3
W47
W14
W87
W120
C403
C402
W61
C253
W39
C252
C254
C251
W83
C401
R253
W50
R252
W86
W90
W93
W124
R301
C63
W114
W84
R28
R25
R21
R20
R30
R165
R166
R167
R101
R163
R164
R168
R172
R229
R230
R169
R170
R171
X1
X2
W41
W129
R145
W56
R352
R351
R259
R353
R226
R225
W17
R50
L4
L305
L306
L304
L101
L303
L201
C222
C221
C223
C51
C52
C53
C55
C56
C54
C205
C204
C353
C257
C351
C224
C258
C203
C255
C101
C304
C201
C256
C57
C301
C306
W6
W5
W51
W57
W60
W45
W48
W25
W35
W31
W23
W30
W27
W22
W28
W40
W42
W43
W13
W15
C50
W67
W115
W102
W133
W122
W136
W135
W113
W125
W134
W111
W104
W103
W88
W89
W70
W74
W65
W68
W80
W19
W46
W75
W52
W49
W96
W92
W101
W71
W69
W18
W12
W29
W2
W20
W4
W10
W11
W7
W21
W9
W100
W72
W32
W26
W95
W121
W73
W77
W76
W59
W24
W33
W34
W36
W138
W105
W62
W64
W78
W130
W128
W131
W94
W99
W116
W117
W98
W97
W106
W110
W127
W107
W63
W139
L2
W140
W141
W143
R173
R141
W16
9
16
8
1
25
1
2
24
2348
9
12 11 13
10
6
15
7
2
1
1
3
1
24
15
1
14
2
1
21
22
2
1
12
B
E
(FOIL SIDE VIEW)
KI3
KI1
KI5
KI2
KI4
KS3
KS4
KS5
KS2
VO
L
SRC
AT
T
12
3
4
5
6
RST
CLK
TI
AU
D
AM
FM
1
39
D19
ED1
D20
D13
D6
D7
D9
D8
D5
D2
D1
D4
D3
D17
D18
D12
D10
D11
IC2
X16-1482-7x (J74-1285-12)
X16-1460-xx/
R21
R22
C6
C7
C9
R18
R13
R12
R15
R14
R10
R3
R2
R5
R4
R20
C5
R19
R16
R17
C3
C2
C1
R8
R7
C4
P
AN5V
RES
KI2
KI3
KI1
KI4
KS5
SW5V
L-CE
D
ATA
L
REMO
ILL GND
DATAS
L-CLK
LED+B
P
AN-SW
KS2
KI5
KS4
D-GND
ESDGND
14
2
11
5
11
6
33
48
32
17
64
49
B
E
KS3
Q1
IC1
J1
D22
X16-1482-7x (J74-1285-12)
X16-1460-xx/
X16-1460-13
IC Q Address
15D
16D
IC Q Address
15F
24H
42H
73E
84G
IC Q Address
11
5E
12
4H
10
3F
20
3G
40
3I
IC Q Address
50
4G
51
3E
53
4F
55
2E
70
3F
IC Q Address
223
2I
224
2I
251 3G
X25-9120-14/22

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