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

6
KDC-W6527SE/W6527SEY
KDC-W657/W657Y
PQRST
1
2
3
4
5
6
7
L401
R5
C18
C115
C116
C117
C118
C119
C120
C122
C202
C204
C205
C206
C208
C209
C417
C419
C420
C421
C422
C
4
C456
C514
R7
R14
R115
R119
R120
R123
R124
R129
R135
R207
R211
R212
R217
R218
R224
R227
R236
R240
R245
R247
R254
R257
R261 R263
R265
R276 R279
R282
C8
C320
C423
C455
C483
R8
R11
R12
R116
R117
R118
R125
R126
R128
R131
R136
R137
R201
R202
R138
R206
R210
R230
R232
R139
R127
R140
R258
R260
R262
R264
R277
R278
R283
R316
R317
R319
R321
R322
R324
R325
R326
R327
R328
R329
R330
R331
R
R444
R445
R453
R45
R461
R462 R463
R505
R506
R507
R508
W2
R270
R333
C322 C321
R332
R203
R226
R25
R30
R28 R29
R26
R27
R23 R24
R21
R22
R19
BE
EB
BEE
CC
BE
CC
EBE
EBE
CC
21
34
85
41
BE
EB
EB
EB EB EB
BE
BE
BE
EB
BE
Q13
D107
D110
D103
D105
D108 D109
D309
D501
D502
D507
D508
D509
D513
D514
Q12
Q26
Q32
Q33
D115
Q36
Q46
D104
D111
D112
D201
D305
D307
D308
Q25
Q31
Q45
Q6
D311
Q7
D519
D314
Q18
Q19
Q20
Q21
Q17
IC9
IC11
ELECTRIC UNIT X34-3012-7x (J76-0025-22/J74-1577-02)
PC BOARD (FOIL SIDE VIEW)

7
KDC-W6527SE/W6527SEY
KDC-W657/W657Y
YXWVU
1
2
3
4
5
6
7
C303
L304
C309
L306
C301
C302
C305
C310
C312 C313
C417
C419
C420
C431
C432
C456
C509
C513
R303
R313
R315
R408
R409
R420
R421
R473
R474
R520
C308
C318
R416
R401
R402
C413
C414
C415
C416 C428
C450
C452
C455
C462
C463
C464
C465
C468
C469
C483
C510
C512
L302
L303
L305
R219
R220
R221
R222
C501
R301
R302
R304
R305 R306
R307
R308
R312
R314
R318
19
R320
R321
R322
R323
3
24
R325
R407
R410
R411
R412
R419
R422
R423
R424
R437
R438 R439
R440
R442
R443
R444
R453
R455
R456
R457
R458 R459
R460
R461
R463
R472
R475
R480
R481
R501
R502
R503
R517
R518
R519
R415 R403
R413
R405R406
C437
C436
R478
R467
R466
R476
C485
C484
BBE
CC B
EB
CC
BEB
CC
BEB
CC
BE BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
D301
D309
D310
D402
D403
D404
D505
D506
Q42
Q47
Q48
Q49
Q50
Q58
Q59
Q60
D303
Q401
Q403
Q402
D304
D306
D308
Q39
Q40
Q41
Q43
D300
Q400
Refer to the schematic diagram for the values of resistors and capacitors.
X34-3012-7x
Ref. No. Address
IC11 5T
Q6 3Q
Q7 3Q
Q12 5Q
Q17 4Q
Q18 6R
Q19 6R
Q20 6R
Q21 6R
Q31 3S
Q32 3R
Q33 3R
Q36 3R
Q39 4U
Q40 4U
Q41 3V
Q42 4V
Q43 4V
Q45 6T
Q46 6T
Q47 3U
Q48 3U
Q49 3V
Q50 3U
Q58 4U
Q59 5U
Q60 7V

8
KDC-W6527SE/W6527SEY
KDC-W657/W657Y
ZAA AB AC AD
1
2
3
4
5
6
7
PC BOARD (COMPONENT SIDE VIEW)
S
D
G
EB
C52
C44
C25 C29
C50
RFOK
R12
C3
C8
C10
C11
C13
C15
C27
C35
C37
/RESET
MIDIO
MIACK
C41
C46
C32
CP6
R27
R47
C18
CP2
CP3
CP5
CP7
CP11
R6
R13
L1
R42 R46
R48
R49
R50
R63
R38
CP12
CP15
CP13
R68
CP14
R65
R67 C69
C67
C66
R66
R69
C72
1
34
5
1
1633
48
32 17
6449
BEC
CBE
Q5
Q4
Q7
S1 S2
S3
S4
IC3
IC6
CD PLAYER UNIT X32-5500-00 (J74-1552-12)
(for KDC-W657/W657Y)
Refer to the schematic diagram for the values of resistors and capacitors.
X32-5500-00
Ref. No. Address
IC3 4AA
IC6 5AB
Q4 5AA
Q5 5AC
Q7 5AB

9
KDC-W6527SE/W6527SEY
KDC-W657/W657Y
AIAHAGAFAE
1
2
3
4
5
6
7
C54
L2
R21
C24
C71
R54
R56
R53
R58
C57
C56
R57
C63
C58
R60
R62
R59
R61
R52
R5
CP1
R10
C12
C5
R70
R2
C7
R9
R34
C28
R36
R35
C6
C34
R22
R37
C30
C31
R43
C26
C21
R29
R64
C38
R45
R44
C53
R40
C51
C48
C49
R51
C36 C47
CP4
R23
C16
X2
C14
R18
CP16
R14
R11
R7
R8
R17
R15
R16
C9
C19
C4
R1
C70
C42
C20
R31
R33
R32
C22 C23
R24
R25
C17
X1
R3
R4
C1 C2
C68
C64
C43
C33
R28
C45
CP9
CP8
C59
C55
R55
CP10
C60
R39
C61
C62
C39
1
16
1
100 25
51
75
76 50
26
1
34
5
3
1
4
5
241
45
31
25
15
26 1
50
100
76
7551
16
130
BEC
CEBBEC
ECB
13
45
S
D
G
EB
EB
EB
BU5V
S.7.5V
FCS
TRK
/MUTEL
/MUTER
SLED
SD
TD
S.GND
MOTOR
SPDL MD
FD
/MSTOP
LIM-SW T2
INT
T1 /RST
T3 T4
FLAGIN
SEARCH
/RESET
BU3.3V /STB
TXD1
/MICK
CLK
A0
/BOOT
/MILP
RXD1
LZM
RZM /MIRST
/MICS
POND3.3
XI
FOGUP
/MRST
SLED IN
LD
LO/EJ
DGND
/EJECT
/LOAD DATA
SLED OUT
/MUTER
D5V
8EJE
LOE/LIM
D.GND
FCS UP
D3.3V
TRK IN
TRK OUT
FCS DOWN
LOS Lch
/MUTEL
Rch
/MSTOP
PON
T
ADCIN
/CLK
FE
D.OUT
Vref
VR
IOP-
PD
C+D
VCC
TE
RF
ARF
F
E
F
A
B
SDO
SPDL+
SPDL-
A.GND
DAVdd3.3V
12EJE
A.+8V
BU2.5V
LRCKIA
D.GND
SDIO
MIRR LOCK HOLD
TZD
BCKIA
TXO
FZD
IOP+ GND
ATEST
FLAG
TX
Vref
REQ
STBY
Q6
Q3
Q10
CN1
D3
Q8
Q9
D2
CN2
Q1
IC2
IC4
IC5
IC1
IC9
IC7
IC8
CD PLAYER UNIT X32-5500-00 (J74-1552-12)
PC BOARD (FOIL SIDE VIEW)
(for KDC-W657/W657Y)
Refer to the schematic diagram for the values of resistors and capacitors.
X32-5500-00
Ref. No. Address
IC1 5AH
IC2 2AG
IC4 5AF
IC5 3AF
IC7 4AG
IC8 3AH
IC9 3AG
Ref. No. Address
Q1 5AH
Q3 5AF
Q6 5AG
Q8 3AF
Q9 3AF
Q10 3AF

10
KDC-W6527SE/W6527SEY
KDC-W657/W657Y
AJ AK AL AM AN
1
2
3
4
5
6
7
PC BOARD (COMPONENT SIDE VIEW)
(for KDC-W6527SE/W6527SEY)
C52
C44
CP12
CP13
C50
R12
R124
C10
C11
C13
C15
C27
R11
C37
C41 R47
C86
CP11
CP3
CP2
R6
R13
R42 R46
R48
R49
R50
R63
R138
CP17
CP14
R68
CP15
C90
R128
R65
C91
C71
C89
C87
R135
R134
R122
R123
C74 C92
C69
R140
R141
C70
R129
CP7
R137
R143
R142
R145
R146
R147
R148
R144
R149
1
1633
48
1732
6449
BCE
ECB
1
34
5
S
D
G
EB
EB
EB
Q5
Q4
Q7
S1
S2
S3
S4
Q12 Q11
IC3
IC14
CD PLAYER UNIT X32-5560-00 (J74-1599-12)
Refer to the schematic diagram for the values of resistors and capacitors.
X32-5560-00
Ref. No. Address
IC3 4AK
IC14 2AK
Q4 5AK
Q5 5AM
Q7 5AL
Q11 3AL
Q12 3AK