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Kenwood DV-303 Service Manual
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Kenwood DV-303 Service Manual

Kenwood DV-303 Service Manual

Dvd vcd cd player
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DVD VCD CD PLAYER
DV-303
SERVICE MANUAL
KENWOOD badge
(B43-0302-04)
Power button
(K27-2389-08)
Top cover
RCA jack
(A01-3749-08)
(E63-1134-08)
DIGITAL OUTPUT
(PCM/BIT STREAM)
OPTICAL COAXIAL
Oscillating module
Pin jack
(TOTX178A)
(E63-1135-08)
In compliance with Federal Regulations, following are repro-
ductions of labels on, or inside the product relating to laser
product safety.
KENWOOD-Crop. certifies this equipment conforms to DHHS
Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock
defeated.
AVOID DIRECT EXPOSURE TO BEAM
Tray top
(A29-1088-08)
Front cover
(B10-3573-08)
Switch
(S90-0134-08)
AUDIO OUTPUT
VIDEO OUTPUT
L
S-VIDEO
R
Y/C connector
(E40-8534-08)
Caution : No connection of ground line if disassemble
NOTE : Please use the remote controller
© 1999-8/B51-5561-00 (K/K) 1378
OPEN/CLOSE
VIRTUAL
STANDBY
SURROUND
Operation button
(K27-2390-08)
COMPONENT
VIDEO OUTPUT
Cr
VIDEO OUTPUT
SELECTION
Cb
Y
Pin jack
(E63-1133-08)
the unit. Please connect the ground line on
rear panel, PCBs, Chassis and some others.
for self-diagnosis and tilt adjust-
ment.
Front panel
(A60-1788-08)
Leg
(J02-1468-08)
AC IN~
Connector
(E40-8535-08)
70%

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Summary of Contents for Kenwood DV-303

  • Page 1 PCBs, Chassis and some others. NOTE : Please use the remote controller KENWOOD-Crop. certifies this equipment conforms to DHHS Regulations No. 21 DFR 1040. 10, Chapter 1, Subchapter J. for self-diagnosis and tilt adjust- DANGER : Laser radiation when open and interlock ment.

  • Page 2: Table Of Contents

    DV-303 CONTENTS / ACCESSORIES Contents CONTENTS / ACCESSORIES ........2 PC BOARD .............. 34 DISASSEMBLY FOR REPAIR........3 SCHEMATIC DIAGRAM .......... 39 BLOCK DIAGRAM ............14 EXPLODED VIEW ............61 CIRCUIT DESCRIPTION ..........18 PARTS LIST..............64 ADJUSTMENT ............22 SPECIFICATIONS ........Back cover WIRING DIAGRAM ...........33 Note: There is different part in this manual as compared with a usual one because we use OEM factory's data.

  • Page 3: Disassembly For Repair

    DV-303 DISASSEMBLY FOR REPAIR 1. Assembling and Disassembling the Casing 1-4 Disassembling the Front Panel and Checking C.B.A.s 1. Release the 3 tabs on the bottom. 2. Release the 2 tabs on the left and right. 1-1 Casing Parts and C.B.A. Positions...
  • Page 4 DV-303 DISASSEMBLY FOR REPAIR 1-6 Checking the Module C.B.A. 2. Release the two tabs on the left and right. 1. Remove the 2 screws. 1-8 Checking the Power Supply C.B.A. 1. Remove the 3 screws. 2. Connect the module C.B.A. to the mother C.B.A. with the extension cables for inspection.
  • Page 5 DV-303 DISASSEMBLY FOR REPAIR 1-9 Checking the Mother C.B.A. 2. To preserve the quality of the optical pickup replacement parts during transport and installation, the terminals of 1. Remove the 5 screws. the laser diode are short-circuited. After replacing the 2.
  • Page 6 DV-303 DISASSEMBLY FOR REPAIR 2-3Lubricating the Loading Base Unit When replacing parts, lubricate the parts maked “xxx” in the diagram Part number Service Tool Grease 410-0013-05 Grease EM-30LG...
  • Page 7 DV-303 DISASSEMBLY FOR REPAIR 2-4 Static Electricity Countermeasures 2-5 Disassembling the Clamp Base Unit The laser diode inside the traverse unit (optical pickup) can Remove the 2 screws. be damaged by static electricity from your body. Be sure to take static electricity countermeasures when working around the optical pickup.
  • Page 8 DV-303 DISASSEMBLY FOR REPAIR 2-7 Disassembling the Traverse Unit 2-8 Disassembling the Stepping Motor Unit 1. Remove the 3 screws. 1. Disconnect the flexible cable. 2. Remove the 2 screws. Note Take care when handling the flexible cable because it can be broken by excessive force.
  • Page 9 DV-303 DISASSEMBLY FOR REPAIR 2-10 Disassembling the Nut Unit 2-12 Assembling the Optical Pickup 1. Remove the screw. 1. Install the optical pickup. Notes Note Take care not ot attach the tilt spring and guide shaft in • The nut unit is not part of the optical pickup.
  • Page 10 DV-303 DISASSEMBLY FOR REPAIR 3. Insert the pickup FPC into connector FP5201 on the mod- 2-14 Optical Pickup Tilt Adjustment ule C.B.A. 4. Remove the solder from the pickup FPC's soldered short- circuit. 5. Adjust the optical pickup tilt after removing the solder.
  • Page 11 DV-303 DISASSEMBLY FOR REPAIR Notes • Adjustment is generally unnecessary after replacing other parts of the traverse unit. However, adjust if there is a noticeable degradation in picture quality. • Optical adjustments cannot be made inside the optical pickup. • Adjustment is generally unnecessary after replacing the traverse unit.
  • Page 12 DV-303 DISASSEMBLY FOR REPAIR 2-15 Disassembling the Intermediate Chassis 2-17 Disassembling the Pulley Gear and Deceleration Gear 1. Push the stopper downward, then rotate it until it contacts the Vertical cam. 1. Remove the screw. 2. Release the 2 tabs.
  • Page 13 DV-303 DISASSEMBLY FOR REPAIR 2-19 Lubricating the Optical Pickup and Peripheral Parts When replacing parts, lubricate the parts marked “xxx" in the diagram.
  • Page 14 MECHANISM UNIT MODULE C.B.A. MOTHER C.B.A. IC5202 IC2001 IC7001 IC3001 IC4201 FRONT OPTICAL AUDIO PICK UP PROCESSOR UNIT CONVERTER (FEP) IC2501 16.9MHz AUDIO OPTICAL DIGITAL 5.1ch SPINDLE IC4211 DISC SPINDLE SERVO MODEL MOTOR DECODER CONTROLLER MOTOR CONTROLLER ONLY DRIVE (AV DEC) (ODC) (DSC) AUDIO...
  • Page 15 RF SIGNAL SPINDLE MOTOR DRIVE SIGNAL STEPPING MOTOR DRIVE SIGNAL TRACKING ERROR SIGNAL FOCUS ERROR SIGNAL STEPPING MOTOR UNIT IC5202 IC2001 IC2511 STEPPING MOTOR OPTICAL PICK UP UNIT (FEP) (DSC) (MOTOR DRIVE) VO3- VIN6 PHOTO DETECTOR VIN5 VO3+ VIN1 RDTN TRSDRV-A OPIN4- HEAD...
  • Page 16 MODULE C.B.A. MOTHER C.B.A. A770,A360 SERIES MODEL ONLY IC3531-16 IC3531-14 IC3531-19 IC3201-29 IC3201-32 IC3001-206 IC3001-201 IC3001-161 to 168 2.2Vp-p(20usec./div.) 1.2Vp-p(20usec./div.) 2.2Vp-p(20usec./div.) 0.68Vp-p(20usec./div.) 0.64Vp-p(20usec./div.) 1.5Vp-p(20usec/div) 1.2Vp-p(20usec/div) 6.0Vp-p(20usec./div.) Q3601 Q3602 IC3201-23 IC3201-25 IC3001 1.2Vp-p(20usec./div.) 1.5Vp-p(20usec./div.) FROM (AV DECORDER) IC6201-80PIN QR3601 IC3531 EXCEPT A770,A360 SERIES Y ADJ.
  • Page 17 A112,A115,A120 KARAOKE MODEL ONLY A270,K520 SERIES ONLY IC4461 IC4671 VR4691 VOICE DET LEVEL IC6001-51PIN MIC1 IC4461 IC3001-185 IC4671 IC4691 IC4952 IC4951 IC4952 IC4691 6.4Vp-p(10usec./div.) VR4692 VR4952 ECHO IC3001 MIC2 0.7Vp-p(0.5msec./div.) Except A770,A560, A360 SERIES Except A770,A560, A770,A560,A360 A360 SERIES ECHO MUT FROM IC4451 IC6001-49PIN...

  • Page 18: Circuit Description

    DV-303 CIRCUIT DESCRIPTION 1. Optical Pickup Self-Diagnosis and Replacement Procedure The optical pickup self-diagnosis function and tilt adjustment check function have been newly added to this player. When repairing, use the following procedure for effective Self-diagnosis and tilt adjustment. Be sure to use the self-diagnosis function before replacing the optical pickup when "NO DISC" is displayed. As a guideline, you should replace the optical pickup when the value of the laser drive current is more than 50.
  • Page 19 DV-303 CIRCUIT DESCRIPTION 2. Self-Diagnosis Function and Service Modes 2-1 Service Mode Table The service modes can be activated by pressing various button combinations on the player and remote control unit. Player Remote control Application Note buttons unit buttons Displaying the UHF display F_ _ _...
  • Page 20 DV-303 CIRCUIT DESCRIPTION 2-4 Examples of Repairs Using Error Codes Refer to this section when carrying out repairs. Error display Malfunction example F0** Disc, IC7001 F103 Disc, IC7001 F4FF IC6001 F500 Optical pickup, IC2001, IC5201, IC2511, IC2501 F501 IC2001, IC6201...
  • Page 21 DV-303 CIRCUIT DESCRIPTION 3. Service Tools and Equipment 3-1 Service Tools and Equipment Table Application Name Number General DVD disc (Include the color bar 75%) Tilt adjustment Hex wrench (ø1.27mm) Inspection Extension cables (power supply C.B.A. to mother C.B.A.) Extension cable(A) Extension cable (module C.B.A.

  • Page 22: Adjustment

    DV-303 ADJUSTMENT 1. Video Output (Luminance Signal) Adjustment Do this adjustment after replacing a C.B.A. Measurement point Adjustment point Mode Disc Video output terminal VR3501 (mother C.B.A.) Color bar 75% DVD disc (Color bar 75%) Measuring equipment, tools Adjustment value Screwdriver, Oscilloscope 1000mVp-p±20mV...
  • Page 23 DV-303 ADJUSTMENT 3. Video Component Signal (CB) Output Adjustment Do this adjustment after replacing a C.B.A. Measurement point Adjustment point Mode Disc Video output terminal VR3041 (mother C.B.A.) Color bar 75% DVD disc (Color bar 75%) Measuring equipment, tools Adjustment value Screwdriver, Oscilloscope 525mVp-p±11mV...
  • Page 24 DV-303 ADJUSTMENT INITIAL/LOGO ABBREVIATIONS INITIAL/LOGO ABBREVIATIONS ETMCLK EXTERNAL M CLOCK R RE READ ENABLE (81MHz/40.5MHz) RFENV RF ENVELOPE ETSCLK EXTERNAL S CLOCK RF PHASE DIFFERENCE OUTPUT (54MHz) (CD-ROM) REGISTER SELECT FBAL FOCUS BALANCE RSEL RF POLARITY SELECT FCLK FRAME CLOCK...
  • Page 25 DV-303 ADJUSTMENT INITIAL/LOGO ABBREVIATIONS INITIAL/LOGO ABBREVIATIONS VBLANK V BLANKING X CHIP SELECT COLLECTOR POWER SUPPLY XCSYNC X COMPOSITE SYNC VOLTAGE X DATA STROBE VCDCONT VIDEO CD CONTROL (TRACKING XHSYNCO X HORIZONTAL SYNC OUTPUT BALANCE) XHINT XH INTERRUPT REQUEST DRAIN POWER SUPPLY VOLTAGE...
  • Page 26 DV-303 ADJUSTMENT...
  • Page 27 DV-303 ADJUSTMENT...
  • Page 28 DV-303 ADJUSTMENT...
  • Page 29 DV-303 ADJUSTMENT 5-3 MOTHER C.B.A.
  • Page 30 DV-303 ADJUSTMENT...
  • Page 31 DV-303 ADJUSTMENT 5-4 MIC JACK C.B.A. 5-5 MIC VOLUME C.B.A.
  • Page 32 DV-303 ADJUSTMENT 5-6 VIDEO COMPONENT C.B.A. 5-7 HEADPHONE C.B.A.
  • Page 34 THE STRIPED FRAME INDICATES THE PRIMARY CIRCUIT TO DISTINGUISH CAUTION PS1101 THE PRIMARY FROM THE SECONDARY CIRCUIT. PAY ATTENTION NOT TO RECEIVE AN ELECTRIC SHOCK DURING REPAIR AND SERVICE OF THE PRODUCTS. R1161 W004 POWER SUPPLY C.B.A. POWER SUPPLY C.B.A. W052 C1117 Transistors...
  • Page 35 MODULE C.B.A. (1/2) TC4014 TC4013 TC4011 TC4010 TC4008 LB3201 TC3204 TC3205 TP6252 C3041 LB4014 TC4012 TC4009 TC3201 TP6251 IC6511 L4602 TP6204 FL6251 L6501 TP6202 D6511 PS4201 PS3201 C6601 C6502 TP6254 C4650 TC4001 TC4002 TC4003 TC4004 TC4005 TC4006 TC4007 C3012 TC3202 TP6257 TP6255 TP6253...
  • Page 36 MODULE C.B.A. (2/2) C6508 C4617 C6501 C6514 C6252 C4615 C6506 LB6502 C3003 R4640 C4614 C4612 C6507 PS6201 C6253 C3286 C3032 R3042 IC6501 C4206 C4619 R3032 W6501 R3038 C3039 X6501 IC4607 R3037 C6254 C3031 C3042 IC3051 IC4601 C3037 C6585 C6521 LB6585 LB6521 IC4606 R3008...

  • Page 37: Pc Board

    PC BOARD(Component side view) MODULE C.B.A. Transistors Transistors Adjustments IC4271 IC4272 Q3201 TP5201 VR3041 E-13 IC4273 Q3211 TP5206 Connectors IC4601 E-17 Q3221 TP5207 IC4602 FP2501 Q3231 TP5208 IC4604 D-16 FP2511 Q5201 A-16 TP6201 IC4605 D-16 FP5201 A-15 TP6202 IC4606 E-16 Transistor-resistors PS3201 TP6203...
  • Page 38 MOTHER C.B.A. S6007 S6003 S6005 S6001 S6006 S6002 S6004 IC6003 OPEN/CLOSE STOP RVS-SKIP PAUSE FWD-SKIP PLAY DL6001 D6013 D6014 W048 R6010 R6008 ST-BY C6021 R6057 R6011 LB6004 LB6003 R6001 R6044 W107 R6009 R6056 R6002 R6035 W136 LB6002 R6003 W108 W021 R6049 LB6006 R6055...
  • Page 39 The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The measurement value may vary depending on the measuring instru- ments used or on the product. DV-303 Y22-8200-10...
  • Page 40 The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The mea- surement value may vary depending on the measuring instruments used or on the product. DV-303 Y22-8200-10...
  • Page 41 (exposed parts are acceptably insulated from the supply circuit) before the appliance is returned to the customer. The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The measure- ment value may vary depending on the measuring instruments used or on the product. DV-303 Y22-8200-10...
  • Page 42 The DC voltage is an actual reading measured with a high impedance type volt- meter with no signal input. The measurement value may vary depending on the measuring instruments used or on the product. DV-303 Y22-8200-10...
  • Page 43 The DC voltage is an actu- al reading measured with a high impedance type volt- meter with no signal input. The measurement value may vary depending on the measuring instruments used or on the product. DV-303 Y22-8200-10...
  • Page 44 The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The measure- ment value may vary depending on the measuring instruments used or on the product. DTA123JK UN4213 UPC1093J UN5213 2SB1218A 2SB709A 2SB709A-R 2SD1328 UN5212 TC7SH08FU BA5983FM TC7SHU04FU PCM1716E DV-303 Y22-8200-10...
  • Page 45 The DC voltage is an actual reading measured with a high impedance type voltmeter with no sig- nal input. The measurement value may vary depending on the measuring instruments used or on the product. DV-303 Y22-8200-10...
  • Page 46 The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The measurement value may vary depending on the measuring instruments used or on the product. DV-303 Y22-8200-10...
  • Page 47 The DC voltage is an actual reading mea- sured with a high impedance type voltmeter with no signal input. The measurement value may vary depending on the measuring instruments used or on the product. DV-303 Y22-8200-10...
  • Page 48 The DC voltage is an actual reading measured with a high impedance type volt- meter with no signal input. The measurement value may vary depending on the measuring instruments used or on the product. DV-303 Y22-8200-10...
  • Page 49 The DC voltage is an actual reading measured with a high impedance type voltmeter with no signal input. The measurement value may vary depending on the measuring instruments used or on the product. DV-303 Y22-8200-10...

  • Page 50: Exploded View

    DV-303 EXPLODED VIEW (CD MECHANISM) Parts with exploded numbers larger than 700 are not supplied.
  • Page 51 DV-303 EXPLODED VIEW (CD MECHANISM) Parts with exploded numbers larger than 700 are not supplied.
  • Page 52 JK3591 S3581 JK3541 JK4501 JK4771 DL6001 OPEN/ STOP PAUSE PLAY CLOSE SKIP SKIP S6007 S6003 S6005 S6001 S6006 S6002 B3x2 POWER B9 B9 S6401 B3x2 N09-5149-08 N09-5150-08 N09-5150-08 N09-5153-08 3x12 N09-5154-08 3x20 N09-5155-08 3x25 N09-5156-08 2.6x10 N09-5157-08 3x10 N09-5158-08 DV-303...
  • Page 53 Add- Desti- Ref. No Parts No. Description Ref. No Parts No. Description ress nation marks Parts ress Parts nation marks DV-303 C1111,2 C90-3872-08 CHIP C 1800UF 10WV C1114 CE04KW1A222M ELECTRO 2200UF 10WV A01-3749-08 TOP COVER VGM1591 C1115 C90-3873-08 CHIP C 0.01UF...
  • Page 54 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 55 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 56 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 57 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 58 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 59 New Parts New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No.
  • Page 60 New Parts Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Teile ohne Parts No. werden nicht geliefert. Add- Desti- Ref. No Parts No. Description ress Parts nation marks N09-5158-08 SCREW XTV3+10G N09-5161-08...

  • Page 61: Specifications

    KENWOOD ELECTRONICS GULF FZE KENWOOD ELECTRONICS U.K. LIMITED P.O.Box 61318, Jebel Ali, Dubai, U.A.E. KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB., United Kingdom KENWOOD ELECTRONICS SINGAPORE PTE LTD. KENWOOD ELECTRONICS BELGUM N.V. No. 1 Genting Lane #02-02, KENWOOD Building, Singapore, 349544 Meachelsesteenweg 418, B-1930 Zaventem, Belgium KENWOOD ELECTRONICS (MALAYSIA) SDN BHD.