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CD RECEIVER
KDC-W237AY/W237GY
QQ
3 7 63 1515 0
KDC-W3037AY/W3037GY
KDC-W311AY/W311GY
KDC-W3537AY/W3537GY/W4037Y
SERVICE MANUAL
Panel assy
KDC-W237AY/W237GY (A64-4058-02)
B.BOOST
MENU
VOL
AUD
SET UP
AUTO
AME
ATT
Panel assy
KDC-W311AY/W311GY (A64-4057-12)
B.BOOST
MENU
VOL
AUD
SET UP
TI
AME
ATT
Panel assy
TE
L 13942296513
KDC-W4037Y (A64-4038-12)
B.BOOST
MENU
VOL
AUD
SET UP
TI
AME
ATT
Lever
(D10-4589-04) x2
Antenna adaptor
(T90-0523-05)
www
.
* Depends on the model. Refer to the parts list.
KDC-W237
FM
SCRL
AM
SCAN
RDM
REP
F.SEL
KDC-W311
FM
SCRL
AM
SCAN
RDM
REP
F.SEL
KDC-W4037
FM
SCRL
SW
AM
SCAN
RDM
REP
F.SEL
M.RDM
DC cord
(E30-6427-05)
* Escutcheon
(B07-xxxx-xx)
x
ao
y
i
8
Panel assy
KDC-W3037AY/W3037GY (A64-4056-12)
B.BOOST
MENU
/
DISP
VOL
AUD
SET UP
TI
AME
ATT
Panel assy
KDC-W3537AY/W3537GY (A64-4042-12)
B.BOOST
MENU
/ PTY
DISP
VOL
AUD
SET UP
TI
AME
ATT
SPARE TDF PANEL
Q Q
3
6 7
1 3
MAIN UNIT NAME
KDC-W237AY
KDC-W237GY
/ PTY
KDC-W3037AY
DISP
KDC-W3037GY
KDC-W311AY
KDC-W311GY
KDC-W3537AY
KDC-W3537GY
KDC-W4037Y
Carrying case
(W01-1685-05)
Mounting hardware assy
(J21-9716-03)
u163
.
2 9
9 4
2 8
© 2006-12 PRINTED IN JAPAN
B53-0483-00 ( N ) 229
KDC-W3037
FM
SCRL
AM
SCAN
RDM
REP
F.SEL
KDC-W3537
FM
SCRL
AM
SCAN
RDM
REP
F.SEL
M.RDM
1 5
0 5
8
2 9
9 4
TDF PARTS No.
TDF NAME
Y33-2660-60
TDF-W237A
Y33-2660-61
TDF-W237G
Y33-2650-63
TDF-W3037A
Y33-2650-64
TDF-W3037G
Y33-2650-65
TDF-W311A
Y33-2650-66
TDF-W311G
Y33-2650-61
TDF-W3537A
Y33-2650-62
TDF-W3537G
Y33-2650-60
TDF-W4037
* Remote controller assy (RC-557)
(A70-2087-05)
Battery
(Not supplied)
m
co
This product uses Lead Free solder.
9 9
/ PTY
DISP
/ PTY
DISP
2 8
9 9
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Related Manuals for Kenwood KDC-W237AY
Summary of Contents for Kenwood KDC-W237AY
- Page 1 KDC-W237AY/W237GY 3 7 63 1515 0 KDC-W3037AY/W3037GY KDC-W311AY/W311GY KDC-W3537AY/W3537GY/W4037Y SERVICE MANUAL © 2006-12 PRINTED IN JAPAN B53-0483-00 ( N ) 229 Panel assy Panel assy KDC-W3037AY/W3037GY (A64-4056-12) KDC-W237AY/W237GY (A64-4058-02) B.BOOST B.BOOST MENU MENU / PTY DISP DISP KDC-W237 KDC-W3037 SCRL...
- Page 2 3 7 6 3 1 5 1 5 0 L 1 3 9 4 2 2 9 6 5 1 3 u 1 6 3...
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Page 3: Block Diagram
KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y BLOCK DIAGRAM 3 7 63 1515 0 MOTHER CD PLAYER UNIT (X32-597x-xx) BOARD (X34- ) DPU1 SRAMSTB SRAMSTB LEVEL SIGNAL SHIFT A,B,C,E,F LEVEL SHIFT BUCK BUCK RF AMP VREF LEVEL SERVO SHIFT PIO0 PIO0 PROCESSOR R246,247 FO COIL... -
Page 4: Components Description
KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y COMPONENTS DESCRIPTION 3 7 63 1515 0 ELECTRIC UNIT (X34-467x-xx) Ref. No. Application / Function Operation / Condition / Compatibility System µ-COM Controls FM/AM tuner, the changer, CD mechanism, panel, volume and tone. IC2,3 E-VOL Controls the source, volume and tone. -
Page 5: Microcomputer's Terminal Description
KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y COMPONENTS DESCRIPTION 3 7 63 1515 0 Ref. No. Application / Function Operation / Condition / Compatibility D3.3V REG. Power supply for digital 3.3V. A3.3V REG. Power supply for audio 3.3V. IC11 BU1.5V REG. Power supply for back-up 1.5V. - Page 6 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Truth Value Pin No. Pin Name Application Processing Operation Description Table PON FL Key illumination power supply control ON: H, OFF: L Not used ON: L, Momentary power down/Panel detached...
- Page 7 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Truth Value Pin No. Pin Name Application Processing Operation Description Table Not used Output L fixed RDS AFS M Noise detection time constant switching Refer to the truth value table...
- Page 8 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y MICROCOMPUTER’S TERMINAL DESCRIPTION 3 7 63 1515 0 Truth Value Pin No. Pin Name Application Processing Operation Description Table AVSS REF CON VREF control Connects to VREF VREF AVCC LX DATA S Data from slave unit Pull-down (GND) •...
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Page 9: Test Mode
KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 3 7 63 1515 0 Example Description of display Description Disc EJECT times display Disc EJECT times display. MAX 65535 (times) While disc EJECT times is displayed, press and hold for 2 seconds or longer to clear disc EJECT times. - Page 10 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 3 7 63 1515 0 Special displays when all lights are on in STANDBY source Description of display Description Common All lights ON. All lights ON. “TYPE” indicates system µ-com (IC1) destination, and shows Destination terminal...
- Page 11 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 3 7 63 1515 0 • CD information display mode Description of display Description CD mecha- Mechanism error log 1 (Latest) 1 : X (forward nism error XX: Error number. “– –” is displayed in case there is no error.
- Page 12 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 3 7 63 1515 0 Test mode specifications in TUNER source Error is found in front-end (A1), etc. if indications below is displayed while in tuner source. Status Display Description Front-end (A1) E2PROM data error Front-end (A1) E2PROM is still the default (unspecified) value.
- Page 13 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 3 7 63 1515 0 Test mode specifications in CD source Display mode default: P-Time • Procedure in CD-DA media (KTD-02A) Description of display Description Track up procedure Every time pressed, jumps to the track shown below.
- Page 14 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 3 7 63 1515 0 MENU-related test mode Procedure Note Press the [B.BOOST] key (main unit) Continuous forwarding by remote control is prohibited Press the [DNPP/SBF] and [DIRECT] keys (Remote control) Backup current measurement Procedure Note While ACC OFF (Back Up ON), Reset MUTE terminal is OFF after 2 seconds, not after 15 seconds.
- Page 15 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 3 7 63 1515 0 Clearing DC offset error detection data (E2PROM data clearing) Procedure Note While pressing and holding [3] key and [6] key, reset-start. Entering DC offset error display mode. Procedure Display Description Press and hold the [3] and...
- Page 16 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 3 7 63 1515 0 ROM data transfer When replacing front-end (A1), this function is used to transfer E2PROM data (ROM correction, security and other data) to front-end (A1) to E2PROM of to mother unit (X34-), used for saving data, and, after completing replacement of front-end (A1), to recover data from the E2PROM of the mother unit (X34-), and for saving data to the new front-end (A1).
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Page 17: Rom Data Transfer Processes
KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y ROM DATA TRANSFER PROCESSES 3 7 63 1515 0 When replacing front-end (A1) of mother unit (X34-), or when Operation procedure adding or replacing ROM correction (program correction with Operation procedure is different depending on the conditions. ROM IC (IC10)), the following activities are required. - Page 18 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y ROM DATA TRANSFER PROCESSES 3 7 63 1515 0 Turn power on. Install new front-end (A1). Press and hold the [1] and [3] keys and press reset button. No ROM correction or other data status. (Enter the system in the test mode.) Press [B.BOOST] key.
- Page 19 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y ROM DATA TRANSFER PROCESSES 3 7 63 1515 0 4. In case of applying a new ROM correction when front-end Turn power on. (A1) is replaced (There is ROM correction data.) Press and hold the [1] and [3] keys, press reset button. (Enter 5.
- Page 20 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y ROM DATA TRANSFER PROCESSES 3 7 63 1515 0 Press [ ] key. (Exit ROM data transfer mode.) Turn power on. Turn power off. Press and hold the [1] and [3] keys press reset button. (Enter the system in the test mode.) Remove front-end (A1).
- Page 21 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y PC BOARD 3 7 63 1515 0 (COMPONENT SIDE VIEW) (FOIL SIDE VIEW) SWITCH UNIT SWITCH UNIT X16-386x-xx (J76-0360-02) X16-386x-xx (J76-0360-02) TDF DET FL+B AUX L AUX G AUX R GUARD VFD DATAS VFD CLK VFD DATAF VFD RST...
- Page 22 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y PC BOARD (FOIL SIDE VIEW) 3 7 63 1515 0 ELECTRIC UNIT X34-467x-xx (J76-0358-02) W100 W807 W806 W805 R101 W102 W803 R102 W902 R910 R908 D103 R106 Q901 R905 R903 R801 R110 R107 R901 Q102 D105 D106 W812...
- Page 23 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 3 7 63 1515 0 X34-467x-xx Ref. No. Address C703 2 3 4 8 12 11 13 R604 C604 Q701 Q702 C603 R959 R710 R712 R803 C706 Q704 R807 Q703 Q101 C705 W701 Q102 R492 Q103 L 13942296513...
- Page 24 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y PC BOARD (COMPONENT SIDE VIEW) 3 7 63 1515 0 CD PLAYER UNIT X32-5970-00 (J76-0366-02) R223 C100 R226 R221 R228 R222 R227 R230 R229 L 13942296513 u163 Refer to the schematic diagram for the values of resistors and capacitors.
- Page 25 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y PC BOARD (FOIL SIDE VIEW) 3 7 63 1515 0 CD PLAYER UNIT X32-5970-00 (J76-0366-02) DGND R217 3BUCK zDET PIO0 R244 3PIO0 3/CCE 3/MRST 3SRAMSTB R246 TRK+ R252 FCS- TRK- AGND R231 FCS+ SBAD IC11 RFRP R241 DM1.5V D1.5V...
- Page 26 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 3 7 63 1515 0 ELECTRIC UNIT (X34-46xx-xx) ∗ R606 1K REQ S TP98 R609 100 MUTE TP95 R607 1K DATA S TP97 2SB1565 R605 100 TP99 R608 100 DATA M TP96 R610 4.7K TP94 LX BUS TP102...
- Page 27 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 3 7 63 1515 0 TP315 C808 1u50 R807 4.3K ∗ POWER DC OFFSET TP903 TP316 Q903 R904 TP902 Q902 GND2 CH-L Q901 CH-R R598 W803 R892 R599 Q901 Q902,903 CH-G DC OFFSET DC OFFSET DET SW AUDIO+B-1 ∗...
- Page 28 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 3 7 63 1515 0 BU5V-1 BU5V-1 BU5V-2 ∗ R229 TP432 100K 5.0V 5.0V P ANT D104 TP502 5.0V RESET IC ∗ ∗ R201 BU DET LX DATA M P CON D102 0 or 1.6 or 2.5 or LX CLK ∗...
- Page 29 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 3 7 63 1515 0 DC CN F1 10A TP16 (F52-0023-05) FUSE CAUTION : For continued safety, replace safety critical components only with manufacturer’s recom- mended parts (refer to parts list). Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resis-...
- Page 30 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 3 7 63 1515 0 ANODE CONNECTION 3GA,3GB 1GA,1GB NAME (3GB/1GB/3GA/2G) (1GA) col (Downside) SWITCH UNIT (X16-386x-xx) R80 47 1/2W R81 47 1/2W R82 47 1/2W Upside Downside col (Upside) ∗ REMOTE CONTROL SENSOR L 13942296513 TP56 KEY MATRIX ∗...
- Page 31 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 3 7 63 1515 0 SWITCH UNIT (X16-386x-xx) C24, Q1, R1- DESTI- MODEL NAME UNIT No. D2,5 D3,4,6,9 D7,8 W1 W2 NATION E222/S J1/J2 X16-3860-01 B30-1575-05 YES YES B30-1767-05 E11-0650-05 E323S X16-3860-01 B30-1575-05 YES YES B30-1767-05 E11-0650-05 KDC-MP2035...
- Page 32 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 3 7 63 1515 0 CD PLAYER UNIT (X32-597x-xx) 3.7V 3.8V 3.5V 3.7V 4ch BTL 1.5V DRIVER SLD+ SPDL+ SLED IN SLD+ SPD+ SPDL+ /EJECT A3.3V REG. SLD- SPDL- SLED OUT AD3.3V SLD- SPD- SPDL- /LOAD 7.5V 7.5V...
- Page 33 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 3 7 63 1515 0 3.3V R233 16.934MHz 2200P FCS- 1.9V TRK- TRK+ 2200P FCS+ DPU1 0.033 0.033 (X92- ) 2.1V OPTICAL 87.7kHz 1.8V 2.5V PICKUP 16.934MHz 1.5V 1.7V 88.8kHz 1.7V 2.1V DVSS3 1 3.2V 1.4MHz 19.8kHz 16.934MHz 3.0V...
- Page 34 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y EXPLODED VIEW (CD MECHANISM) 3 7 63 1515 0 DPU1 L 13942296513 DFPC1 (X32) φ : N09-4460-15 M1.6x6.0 : N09-6317-05 M1.7x2.5 : N09-6004-15 M2x2 : N09-6007-15 u163 φ 2x5(BLK) : N09-6051-15 1.6 WASHER : N19-2163-04 M2x2 : N39-2020-48 φ...
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Page 35: Exploded View (Unit)
KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y EXPLODED VIEW (UNIT) 3 7 63 1515 0 Batteries for RC1 DME1 : N24-3015-48 : N80-2006-48 : N80-2008-43 : N83-3005-48 : N86-2610-48 : N80-3010-48 : N83-3005-48 : N83-3020-48 : N86-2606-48 L 13942296513 (X34) (X34) (X16-) (X34-) u163 Depends on the models. Refer to the parts list. -
Page 36: Parts List
K25-1859-02 PUSH KNOB (PRESET) RK73GB2A101J CHIP R J 1/10W E : KDC-W4037Y E1 : KDC-W3537AY E2 : KDC-W3537GY E3 : KDC-W3037AY E4 : KDC-W3037GY Indicates safety critical components. E5 : KDC-W311AY E6 : KDC-W311GY E7 : KDC-W237AY E8 : KDC-W237GY... - Page 37 RK73GB2A560J CHIP R J 1/10W CK73GB1H104K CHIP C 0.10UF E : KDC-W4037Y E1 : KDC-W3537AY E2 : KDC-W3537GY E3 : KDC-W3037AY E4 : KDC-W3037GY Indicates safety critical components. E5 : KDC-W311AY E6 : KDC-W311GY E7 : KDC-W237AY E8 : KDC-W237GY...
- Page 38 CYLINDRICAL RECEPTACLE EE1E2 CD04AB1C220M ELECTRO 22UF 16WV E63-0941-05 PIN JACK E : KDC-W4037Y E1 : KDC-W3537AY E2 : KDC-W3537GY E3 : KDC-W3037AY E4 : KDC-W3037GY Indicates safety critical components. E5 : KDC-W311AY E6 : KDC-W311GY E7 : KDC-W237AY E8 : KDC-W237GY...
- Page 39 CHIP R J 1/10W EE3E4 R508 RD14BB2C222J 2.2K J 1/6W E : KDC-W4037Y E1 : KDC-W3537AY E2 : KDC-W3537GY E3 : KDC-W3037AY E4 : KDC-W3037GY Indicates safety critical components. E5 : KDC-W311AY E6 : KDC-W311GY E7 : KDC-W237AY E8 : KDC-W237GY...
- Page 40 ZENER DIODE A10-5328-11 CHASSIS A10-5329-01 CHASSIS D101,102 D1F60-5063 DIODE E : KDC-W4037Y E1 : KDC-W3537AY E2 : KDC-W3537GY E3 : KDC-W3037AY E4 : KDC-W3037GY Indicates safety critical components. E5 : KDC-W311AY E6 : KDC-W311GY E7 : KDC-W237AY E8 : KDC-W237GY...
- Page 41 T42-1066-14 DC MOTOR (SPINDLE) T42-1067-14 DC MOTOR (LOADING/SLED) E : KDC-W4037Y E1 : KDC-W3537AY E2 : KDC-W3537GY E3 : KDC-W3037AY E4 : KDC-W3037GY Indicates safety critical components. E5 : KDC-W311AY E6 : KDC-W311GY E7 : KDC-W237AY E8 : KDC-W237GY...
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Page 42: Specifications
Weight ................. 1.40kg Dynamic range .............. 93dB MP3 decode ..Compliant with MPEG-1/2 Audio Layer-3 WMA decode ....Compliant with Windows Media Audio KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without notice. u163...
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