© 2004-7 PRINTED IN JAPAN
B53-0185-00 (N) 1813
CD RECEIVER
KDC-W6527SE/W6527SEY
/W657/W657Y
SERVICE MANUAL
Plastic cabinet assy
(A02-2732-03)
Lever
(D10-4589-04) x2
Screw
(N09-6212-05)
Mounting hardware assy
(J21-9716-03)
CD MECHANISM EXTENSION CORD (24P) : W05-0935-00
MODEL
TDF PANEL No.
TDF NAME
KDC-W6527SE/W6527SEY
Y33-1990-65
TDF-W6527SE
KDC-W657/W657Y
Y33-1990-66
TDF-W657
TDF PANEL INFORMATION
Panel assy
(A64-3419-12) : KDC-W6527SE/W6527SEY
(A64-3420-02) : KDC-W657/W657Y
DC cord
(E30-6063-15)
Antenna adaptor
(T90-0523-05)
Remote controller assy (RC-420)
(A70-2055-05)
Escutcheon
(B07-3120-02) : KDC-W6527SE/W6527SEY
(B07-3098-02) : KDC-W657/W657Y
KDC-W6527SE/W6527SEY
KDC-W657/W657Y
2
BLOCK
DIA
GRAM
BU
BU
SW5
BU5
SW3
F+/F-
FL+B
RDS
F/E
LX-BUS
DISP
OPEL-
AUX
PANEL-
MECHA
CD
DXM6540W
INGAIN
STD
MAIN
SUB
PHONE
/NAVI
INPUT
-MPX
INGAIN
+
TREBLE
BASS
VOLUME
MID
0
AUTOZER
OUT-SEL
SOFT
MUTE
FRONT
REAR
NF/R
FRONT
REAR
NF
FADER
DC
DET
OFFSET
E'S LIGHT
C/R : DISCREET
E-VOL
PW-IC
PRE-OUT
PRE-OUT
SP-OUT
MUTE
MUTE
ACC
ACC-DET
REG.
ANT-SW
SERVO
CD
REG.
P-CON
REG.
BU
SW
BU5V
REG.
DC/DC
SW11V
FL
F+/F-
FL +B
SW5V
MECHA
PANEL
DRIVER+B
BU5V
ILL+B
A8V
CD-4.7V
BU-DET
ANT-CON
SYSTEM u-COM
REMO
KEY
MATRIX
u-COM
PANEL
SHIFT
LEVEL
FL
SW
IC4
Q49,50
Q47,48
Q36
SW REG.
Q27
Q25
Q10,11
Q7,9
IC13
IC19
Q3
Q1,2
A1
IC20
Q15,16
IC7
Q35
IC3,Q8
Q3
ED1
IC1
IC3
IC1
A2
IC12
IC2
Q58,59
MUTE
MUTE
Q56,57
METER
LEVEL
IC14
(E type ONLY)
(E type ONLY)
BU5
CD SERVO
MPX
AUX
CH
CD
NAVI
CH/AUX
AC
IN0
AC
IN1
AC
IN2
AC
IN3
AC
OUT
SUB
IN1 : HPF
IN2 : 2ZONE
IN3 : LPF
ACIN 3+LPF
: FREE ONLY
HPF
NF
FR
NO HPF
F/R/NF
DC
MUTE L/R
FRONT
MUTE L/R
REAR/NF
R/L
R/R
F/L
F/R
MONO 2ch
PON
P-CON
PON
PON CD/MD
PON
A
UDIO
PWIC
POWER
DET
PON ILL
TYPE
P
ANEL
FL+B
2ZONE
(X34- )
(X16-251)
Ref
er
to
the
ser
vice
man
ual
(B53-0124-00)
of
KDC-W6527
f
or
COMPONENTS
DESCRIPTION,
MICR
OCOMPUTER'S
DESCRIPTION
and
TEST
MODE.
3
KDC-W6527SE/W6527SEY
KDC-W657/W657Y
A
B
C
D
E
1
2
3
4
5
6
7
PC BOARD
(COMPONENT SIDE VIEW)
(FOIL SIDE VIEW)
CP14
C13
C15
C16
C17
C18
R54
FM
AM
DISP
EQ
6
5
4
3
2
1
RST
WO
W
CONT
13
24
SRC
EJECT
S25
D6
D1
D5
D4
D7
D8
D9
D12
D19
D11
D10
D3
D2
D13
D14
D15
D16
D17
D18
S1
S2
ED1
S24
IC3
SUB-CIRCUIT UNIT
X16-251x-xx (J76-0026-22)
R50
R53
R46
C14
R44
CP8
R34
R26
C9
R28
R27
R24
R23
R18
R14
R10
R906
CP12
CP10
R905
R904
C19
C20
R4
R29
R6
X1
R17
R2
R1
CP5
C7
CP11
C10
C6
R60
C21
R43
R42
R16
R12
R7
R5
R3
CP3
R19
R15
L1
CP4
C1
R903
R8
R39
R9
CP2
R13
R11
R21
C8
CP6
C3
R37
CP9
C11
C4
C2
R25
R20
R36
R35
L2
R38
CP7
E
B
E
B
C5
31
5
4
1
8
16
9
51
75
50
26
25
1
76
100
15
2
14
1
PN5V
IL+B
ESD
PSCL
SREQ
LEVM
RST
FLGND
KR1
FDC
AT
T
KR2
KS1
KS0
SCCON
FL+B
SRC
PSDA
PRST
DGND
PREQ
GCP
KS3
KR0
KS2
KR3
S5V
SD
A
W
R
SCL
EJE
E
B
EB
EB
E
B
EB
E
B
E
B
E
B
E
B
Q10
Q9
Q7
D901
J1
Q8
Q6
Q3
Q2
Q1
Q4
Q11
Q12
IC1
IC2
IC4
SUB-CIRCUIT UNIT
X16-251x-xx (J76-0026-22)
Refer to the schematic
diagram for the values
of resistors and
capacitors.
X16-251x-xx
Ref. No. Address
IC1
4D
IC2
3D
IC4
3C
Q1
3C
Q2
5D
Q3
5D
Q4
2D
Q6
6D
Q7
6D
Q8
6D
Q9
6D
Q10
6D
Q11
2D
Q12
2D
X16-251x-xx
Ref. No. Address
IC3
2B
4
KDC-W6527SE/W6527SEY
KDC-W657/W657Y
F
G
H
I
J
1
2
3
4
5
6
7
C314
C461
R310
CP205
CP202
C435
C121
C201
C203
C315
C316
C424
C457
C458
C507
C520
CP204
R273
R259
R311
R404
W400
R464
R469
R470
R504
R522
R523
X2
C317
W401
W403
C406
C409/
C427
C429
C430
C433
C434
C466
C467
C476
C477
L202
L201
R3
R4
R208
R213
R214
R215
R216
R223
R225
CP206
CP207
R229
R231
R239
R241
R250
R251
R252
R253/W200
R272
C411
R274
R280
R281
R285
R528
R309
R400
R414
R417
R441
R446
R447
R448
R449
R450
R451
R452
R454
R468
R471
R509
R510
R511
R512
R513
R514
R515
R516
R521
R524
R525
R526
TH1
C405
X1
CP201
CP203
C402
C410
C400
C412
C523
CP209
C470
C300
R529
C460/W405
C459/W404
R479
R418
R527
R477
C212
C211
C210
CP208
R284
C401/
W402
E
B
E
C
C
1
7
14
8
37
36
25
48
112
24
13
4
5
1
3
33
100
5
34
23
44
111
22
12
8
1
4
1
76
25
75
51
50
26
1
24
1
22
116
1
8
16
9
1
4
5
8
5
1
6
10
E
B
EB
E
B
EB
EB
E
B
E
B
EB
EB
CNVss
CD
SCL
SDA
MD
C449
C311
C207
C319
C418
C425
C426
C453
C454
C478
C515
L301
C403
C404
C407
C408
C451
C479
C480
C511
C516
C517
C518
C519
C521
C522
X3
CN2
Q
Q404
CN1
CN3
D503
D504
D510
D515
D516
Q4
Q44
Q53
D518
Q56
Q57
D106
D113
D114
D302
D511
D512
Q3
Q37
Q38
Q55
D315
D500
J2
J3
W3
P1
WH1
S1
S2
CN5
CN6
IC13
IC2
IC14
IC12
IC1
IC6
IC10
IC18
IC19
IC4
13
3
1
1
24
2
31
5
4
1
11 12 8 4
3 2
1
5
7
6
10
9
127
226
REAR
FRONT
PRE OUT
ELECTRIC UNIT X34-3012-7x (J76-0025-22/J74-1577-02)
PC BOARD (COMPONENT SIDE VIEW)
5
KDC-W6527SE/W6527SEY
KDC-W657/W657Y
O
N
M
L
K
1
2
3
4
5
6
7
C2
C113
C4
C5
C10
C19
C20
R273
R134
L3
R1
R2
R6
R9
R101
R102
R103
R121
R122
R132
R133
P207
50
51
52
53/W200
72
R274
R141
R10
C12
R16
R15
R18
R20
R17
C24
GI
O
EB
EB
GI
O
B
E
E
C
C
1
5
1
5
E
B
EB
E
B
EB
E
B
EB
E
B
E
B
COR
DET
C11
C1
C112
L1
L2
C3
C6
C7
C9
C14
C16
C17
C21
C23
R130
C114
L4
C13
Q5
Q10
D2
Q27
Q28
Q29
D3
D7
D5
D6
5
D516
Q30
Q35
D106
Q2
Q16
Q34
D4
Q9
Q15
Q11
D1
Q8
A1
J1
Q1
WH1
CN7
IC3
IC7
IC20
IC21
3
2
31
15
1
5
4
B
E
B
E
B
E
B
E
9
8
16
1
Refer to the schematic diagram for the values of
resistors and capacitors.
X34-3012-7x
Ref. No.
Address
IC1
5J
IC2
5H
IC3
3L
IC4
2I
IC7
4L
IC10
4J
IC12
6H
IC13
7I
IC14
4H
IC20
5L
IC21
4L
Q1
3M
Q2
3M
Q3
4J
Q4
4J
Q5
3L
Q8
2M
Q9
3L
Q10
3L
Q11
3M
Q15
3M
Q27
4K
Q28
3K
Q29
3K
Q30
3K
Q34
3K
Q35
3K
Q37
3H
Q38
3G
Q44
7J
Q55
5I
Q56
4H
Q57
5H