Kenwood KDC-218-A Service Manual
CD RECEIVER
FRONT GLASS
(B10-4281-11): KDC218A
(B10-4282-11): KDC-218S
Panel
(A64-2770-01): KDC-218A
(A64-2771-01): KDC-218S
(B07-3054-02): KDC-218A
(B07-3070-02): KDC-218S
MANUFACTURED BY VISTEON
KDC-218A
SERVICE MANUAL
© 2001-12 PRINTED IN JAPAN
B51-7874-00 (N) 1754
The CD mechanism infomation is not in this sarvice manual.
Please, refer to sarvice manual X92-4030-0x (B51-7867-00).
Panel assy
(A64-2544-02): KDC-219
(A64-2545-02): KDC-2019
(A64-2546-02): KDC-29MR
COMPACT
DIGITAL AUDIO
OFF
(A64-2547-02): KDC-2020
(A64-2548-02): KDC-4020
(A64-2680-02): KDC-3020
(A64-2711-02): KDC-2019V
KDC-XXXX
RDMLOUD REPSCAN
Panel assy
(A64-2566-02): KDC-217
(A64-2695-02): KDC-217S
KDC-XXXX
COMPACT
DIGITAL AUDIO
OFF
RDMLOUD REPSCAN
CD MD-Changer Control
M. RDM
CD mechanism extension cord : W05-0618-00
Escutcheon
(B07-3054-02): KDC-2019/2019V
KDC-219/2020
(B07-3055-02): KDC-29MR
KDC-3020/4020
50W
x4
CRSC
AMEAUTOADJCLK
AUD
Escutcheon
(B07-3054-02): KDC-217/217S
45W
x4
CRSC
AMEAUTOADJCLK
AUD
DC cord
∗
(E30-4783-05)
(E30-4784-05)
Mounting hardware assy
(J21-9641-13)
Depends on the model. Refer to the parts list.
∗
Plastic cabinet assy
(A02-1486-13)
Lever
(D10-4589-04)x2
Remote controller assy
(A70-2024-05)
Screw set
(N99-1719-05)
∗
Stay
(J54-0606-04)
Screw set
(N99-1610-15)
∗
∗
2
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
DSIBU5V
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
DATAS
MUTE
LO/DX
PLL-DATA
PLL-CLK
AFS
NOISE
S-METER
SCL
SD
SDA
PLL-CE
EN2
EN3
EN1
PC DET
PA DET
CLK
DATAL
CE
REMO
PANEL
DSI
RES
SDA
SCL
P-CON
P.ANT
FM+B
VP2
AM+B
AUDIO
ILLUM
BU5V
SW1
SW2
203mV
170mV
1200mV
1200mV
382mVK:
E:
382mVJ:
(K)
FM
(E)
(K)
(J)
(J)AM
(E)
: 1605mV
: 1276mV
: 561mV
: 1700mV
: 561mV
: 792mV
: 3529mVCD.CH
LCD
KDC-218A/218S
KDC-2019/V/217/S/219/29MR
/2020/3020/4020
BLOCK DIAGRAM
SYSTEM MICROCOMPUTER µPD780058GC-XXX (IC1 : X25)
KDC-218A/218S
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
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
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 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 pow er 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
50 BEEP O Buzzer output L
51,52
53 DSI O DSI control output L, H/L when panel is detached. FIX output is L.
PS1-0~PS1-2
PS2-0,PS2-1
KDC-2019/V/217/S/219/29MR
/2020/3020/4020
MICROCOMPUTER’S TERMINAL DESCRIPTION
H, L when the panel is detached or with 7-segment output.
Destination type and servicing setting 5V output
GND potential (for other parts than ports and analog circuitry)
O Power supply IC AUD/P.CON/P.ANT SW L
O Power supply IC ILL/AM/FM SW L
L
-
3
KDC-2019/V/217/S/219/29MR
KDC-218A/218S
/2020/3020/4020
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 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 por ts) 75 AVREF0 I 5V power supply (A/D converter reference v oltage) 76 S-METER I S-meter input Hi-Z
77 PHONE I
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
Positive power supply (for other parts than ports and analog circuitry)
Navigation muting 2.5V or more, Telephone muting 1V or less
-
. Hi-Z, L when TEL is not available.
ADJUSTMENT
No. ITEM INPUT SETTINGS
FM SECTION
1SD 0 dev FM
AM SECTION
(1) SD 0% mod AM
TEST MODE : ON While holding the FM key and preset “6” key, reset the unit.
TEST MODE : OFF Reset the unit.
4
TUNER (RECEIVER) ALIGNMENT
SETTINGS POINTS
98.1MHz TEST MODE : ON
35dBµ (ANT input) 98.1MHz
990kHz TEST MODE : ON
35dBµ (ANT input) 990kHz
ALIGN FOR
While holding preset “1” key, press and
Preset “1” key, and hold preset “6” k ey for a few seconds.
preset “6” key “1111” is good.
“0000” is not good.
While holding preset “1” key, press and
Preset “1” key, and hold preset “6” k ey for a few seconds.
preset “6” key “1111” is good.
“0000” is not good.
A B C D E F G H I J
IC1
D267
D264
D268
D13
D11
Q20
Q201
IC2
IC6
Q102
Q224Q223
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
C356C355
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
W162W161
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
43
17
814
14
58
114
1528
1
16
8
9
EB
EB
EBE
EEB
BE
BE
EB
BE
EB
EB
EB
EB
EB
EBEB
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
2348912 11 13
106157
2
113
1
24
15
1
142
1
21
22
2
1
12
B
E
1
2
3
4
5
6
7
PC BOARD
(COMPONENT SIDE VIEW)
X16-1460-xx/
X16-1482-7x (J74-1285-12)
KS5
D20
KI1
KI2
VOL
IC2
1 39
D8
ED1
D9
D7
X16-1460-xx
IC Q
Address
22B
X16-1460-xx
IC Q
15D
D17
SRC
D19
KS4
ATT
D11
123456
D1
CLK
TI
KI5
KS3
AUD
KS2
KI4
AM
FM
KI3
D10
D2
D3
D4
D5
D6
RST
D12
D13
D18
Refer to the schematic diagram for the values of resistors and capacitors.
(FOIL SIDE VIEW)
X16-1460-xx/
X16-1482-7x (J74-1285-12)
C6
R19
C5
C9
R13
Address
16D
R16
SW5V
DATAS
ILL GND
3348
KS5
KS4
KS2
KS3
KI1
R17
R12
R5
R2
R4
R3
L-CE
32
49
R22
R21
D22
KI4
PAN-SW
REMO
R10
BE
KI2
L-CLK
C4
LED+B
PAN5V
IC1
C3
RES
Q1
KI5
R14
R15
DATAL
C2
KI3
R20
142
C1
R18
D-GND
1764
R8
C7
ESDGND
J1
115
116
R7
X25-9120-xx
IC Q
Address
15F
24H
42H
73E
84G
IC Q
11 5E
12 4H
10 3F
20 3G
40 3I
Address
IC Q
Address
50 4G
51 3E
53 4F
55 2E
70 3F
65
IC Q
101
102
221
222
223
Address
6E
6F
3I
3I
2I
IC Q
224
251
Address
2I
3G
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