Download
Share
Print this page
Kenwood KDC-W237AY Service Manual
  1. Manuals
  2. Brands
  3. Kenwood Manuals
  4. Car Receiver
  5. KDC-W237AY
  6. Service manual
Kenwood KDC-W237AY Service Manual

Kenwood KDC-W237AY Service Manual

Cd receiver
Hide thumbs Also See for KDC-W237AY:

Advertisement

Quick Links

Download this manual
CD RECEIVER
KDC-W237AY/W237GY
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
SCAN
RDM
ATT
Panel assy
KDC-W311AY/W311GY (A64-4057-12)
B.BOOST
MENU
VOL
AUD
SET UP
TI
AME
SCAN
RDM
ATT
Panel assy
KDC-W4037Y (A64-4038-12)
B.BOOST
MENU
VOL
AUD
SET UP
TI
AME
SCAN
RDM
ATT
Lever
DC cord
(D10-4589-04) x2
(E30-6427-05)
Antenna adaptor
(T90-0523-05)
* Depends on the model. Refer to the parts list.
/
DISP
KDC-W237
FM
SCRL
AM
REP
F.SEL
/ PTY
DISP
KDC-W311
FM
SCRL
AM
REP
F.SEL
/ PTY
DISP
KDC-W4037
FM
SCRL
SW
AM
REP
F.SEL
M.RDM
Carrying case
(W01-1685-05)
* Escutcheon
(B07-xxxx-xx)
© 2006-12 PRINTED IN JAPAN
B53-0483-00 ( N ) 229
Panel assy
KDC-W3037AY/W3037GY (A64-4056-12)
B.BOOST
MENU
VOL
AUD
SET UP
TI
AME
SCAN
RDM
ATT
Panel assy
KDC-W3537AY/W3537GY (A64-4042-12)
B.BOOST
MENU
VOL
AUD
SET UP
TI
AME
SCAN
RDM
ATT
SPARE TDF PANEL
MAIN UNIT NAME
TDF PARTS No.
KDC-W237AY
Y33-2660-60
KDC-W237GY
Y33-2660-61
KDC-W3037AY
Y33-2650-63
KDC-W3037GY
Y33-2650-64
KDC-W311AY
Y33-2650-65
KDC-W311GY
Y33-2650-66
KDC-W3537AY
Y33-2650-61
KDC-W3537GY
Y33-2650-62
KDC-W4037Y
Y33-2650-60
* Remote controller assy (RC-557)
(A70-2087-05)
Mounting hardware assy
(J21-9716-03)
This product uses Lead Free solder.
/ PTY
DISP
KDC-W3037
FM
SCRL
AM
REP
F.SEL
/ PTY
DISP
KDC-W3537
FM
SCRL
AM
REP
F.SEL
M.RDM
TDF NAME
TDF-W237A
TDF-W237G
TDF-W3037A
TDF-W3037G
TDF-W311A
TDF-W311G
TDF-W3537A
TDF-W3537G
TDF-W4037
Battery
(Not supplied)

Advertisement

loading
Need help?

Need help?

Do you have a question about the KDC-W237AY and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for Kenwood KDC-W237AY

Summary of Contents for Kenwood KDC-W237AY

  • Page 1 CD RECEIVER KDC-W237AY/W237GY 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 SCRL SET UP...

  • Page 3: Block Diagram

    KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y BLOCK DIAGRAM 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 MP3 DECODER FO OUT LEVEL...

  • Page 4: Components Description

    KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y COMPONENTS DESCRIPTION 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. Power Supply IC Outputs 5Vx2, 8.1Vx2, 10.2V, P-CON and P-ANT.

  • Page 5: Microcomputer's Terminal Description

    KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y COMPONENTS DESCRIPTION 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. APC (Auto Power Control) Drives LD (Laser Diode).
  • Page 6 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y MICROCOMPUTER’S TERMINAL DESCRIPTION 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 PON PANEL Panel 5V control...
  • Page 7 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y MICROCOMPUTER’S TERMINAL DESCRIPTION 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 TUN IFC OUT Front-end IFC-OUT input...
  • Page 8 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y MICROCOMPUTER’S TERMINAL DESCRIPTION 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) • Truth value table q CD motor control...

  • Page 9: Test Mode

    KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 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. A symbol “ ” in the key column indicates that the key should be pressed and held for 1 second or longer.
  • Page 10 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 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 E : 1 condition indication real-time condition of the destination terminal.
  • Page 11 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE • 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. rotation)
  • Page 12 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 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 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. No.9 → No.15 → No.10 → No.11 → No.12 → No.13 →...
  • Page 14 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y TEST MODE 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 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 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).

  • Page 17: Rom Data Transfer Processes

    KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y ROM DATA TRANSFER PROCESSES 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 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. (ROM data System enters data trans- fer mode.)
  • Page 19 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y ROM DATA TRANSFER PROCESSES 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 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 (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 REMO PAN5V FL SW11 25V...
  • Page 22 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y PC BOARD (FOIL SIDE VIEW) 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 C102 D901 D803 DC-DET R108...
  • Page 23 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 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 Q104 R791 Q105 Q401 R793 Q301 R493...
  • Page 24 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y PC BOARD (COMPONENT SIDE VIEW) CD PLAYER UNIT X32-5970-00 (J76-0366-02) R223 C100 R226 R221 R228 R222 R227 R230 R229 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) 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 SRAMSTB 12EJE-SW SLED IN...
  • Page 26 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 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 R601 C601 GND2 0.47 CH-L...
  • Page 27 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 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 ∗ D801 ROM CORRECTION (NOT USED)
  • Page 28 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 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 ∗ ACC DET 3.4 or 5.0V...
  • Page 29 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 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 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 TP56 KEY MATRIX ∗ 100K AUTO BASS BOOST TP57...
  • Page 31 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 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 X16-3860-10 YES YES YES YES...
  • Page 32 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 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 VCC2 VCC1 C24 4.7 R251 5.0V...
  • Page 33 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y 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 TNPC 1.7V 1.8V 3.5V 1.8V...
  • Page 34 KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y EXPLODED VIEW (CD MECHANISM) DPU1 DFPC1 (X32) φ : N09-4460-15 M1.6x6.0 : N09-6317-05 M1.7x2.5 : N09-6004-15 M2x2 : N09-6007-15 φ 2x5(BLK) : N09-6051-15 1.6 WASHER : N19-2163-04 M2x2 : N39-2020-48 φ 2x3.5 : N09-6108-15 φ : N09-6155-15 Parts with the exploded numbers larger than 700 are not supplied.

  • Page 35: Exploded View (Unit)

    KDC-W237AY/W237GY/W3037AY/W3037GY/ W311AY/W311GY/W3537AY/W3537GY/W4037Y EXPLODED VIEW (UNIT) 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 (X34) (X34) (X16-) (X34-) 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 SEMS (TAPTITE SCREW) (PT2X6) 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...

  • 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. DANGER: Please do not look at the laser beam directly during repair or operation check.

This manual is also suitable for:

Kdc-w237gyKdc-w3037ayKdc-w3037gyKdc-w311ayKdc-w311gyKdc-w3537ay ... Show all