Kenwood KDC-W6527SEY User manual

© 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 DIAGRAM
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
ACCACC-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.
Q27Q25Q10,11Q7,9
IC13
IC19
Q3 Q1,2
A1
IC20 Q15,16
IC7
Q35
IC3,Q8
Q3ED1
IC1IC3
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
AUDIO
PWIC
POWER
DET
PON ILL
TYPE
PANEL
FL+B
2ZONE
(X34- )
(X16-251)
Refer to the service manual (B53-0124-00) of KDC-W6527 for COMPONENTS DESCRIPTION, MICROCOMPUTER’S DESCRIPTION andTEST MODE.

3
KDC-W6527SE/W6527SEY
KDC-W657/W657Y
ABCDE
1
2
3
4
5
6
7
PC BOARD
(COMPONENT SIDE VIEW) (FOIL SIDEVIEW)
CP14
C13
C15
C16
C17
C18
R54
FM
AM
DISP
EQ
654321
RST
WOW 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
EB
EB
C5
31
54
18
169
51
75 50
26
251
76
100
15
214
1
PN5V
IL+B
ESD
PSCL
SREQ
LEVM
RST
FLGND
KR1
FDC
ATT
KR2
KS1 KS0
SCCON
FL+B
SRC
PSDA
PRST
DGND
PREQ
GCP
KS3
KR0
KS2
KR3
S5V
SDAWR
SCL
EJE
EB
EB EB
EB
EB
EB
EB
EB EB
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
FGHIJ
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
83736 25
48 112
24
13
4
51
3
33
100
5
34 23
44 111
22
12
8
14
176
25
75
51
5026
124
122
116
1
8
16
9
1
45
8
5
1
6
10
EB
EB
EB
EB
EB
EB
EB
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
1576109
127
226
REARFRONT 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
ONMLK
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
P
207
5
0
5
1
5
2
5
3/W200
7
2
R
274
R141
R10
C12
R16
R15
R18
R20
R17
C24
GIO
EB
EB
GIO
B
E
E
C
C
1515
EB
EB
EB
EB
EB
EB
EB
EB
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
D
516
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