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Toshiba MD24F52 Service Manual
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Toshiba MD24F52 Service Manual

Toshiba MD24F52 Service Manual

Color television/dvd video player
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See also: Owner's Manual
SERVICE MANUAL
COLOR TELEVISION/
DVD VIDEO PLAYER
The above model is classified as a green product (*1), as indicated by the underlined serial number.
This Service Manual describes replacement parts for the green product. When repairing this green
product, use the part(s) described in this manual and lead-free solder (*2).
For (*1) and (*2), see the next page.
MD24F52
DOCUMENT CREATED IN JAPAN, April, 2006 GREEN
FILE NO. 810-200653GR

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  • Page 1 SERVICE MANUAL COLOR TELEVISION/ DVD VIDEO PLAYER MD24F52 The above model is classified as a green product (*1), as indicated by the underlined serial number. This Service Manual describes replacement parts for the green product. When repairing this green product, use the part(s) described in this manual and lead-free solder (*2).

  • Page 2: Green Product Procurement

    Hazardous Substances. From July 1, 2006, the RoHS Directive will prohibit any marketing of new products containing the restricted substances. Increasing attention is given to issues related to the global environmental. Toshiba Corporation recognizes environmental protection as a key management tasks, and is doing its utmost to enhance and improve the quality and scope of its environmental activities.

  • Page 3: Caution

    CAUTION THIS DIGITAL VIDEO PLAYER EMPLOYS A LASER SYSTEM. TO ENSURE PROPER USE OF THIS PRODUCT, PLEASE READ THIS SERVICE MANUAL CARE- FULLY AND RETAIN FOR FUTURE REFERENCE. SHOULD THE UNIT REQUIRE MAINTENANCE, CONTACT AN AUTHORIZED SERVICE LOCATION-SEE SERVICE PROCEDURE. USE OF CONTROLS, ADJUSTMENTS OR THE PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.

  • Page 4: Servicing Notices On Checking

    SERVICING NOTICES ON CHECKING 1. KEEP THE NOTICES 6. AVOID AN X-RAY As for the places which need special attentions, Safety is secured against an X-ray by consider- they are indicated with the labels or seals on the ing about the cathode-ray tube and the high cabinet, chassis and parts.

  • Page 5: Important Safeguards

    IMPORTANT SAFEGUARDS READ INSTRUCTIONS All the safety and operating instructions should be read before the unit is operated. RETAIN INSTRUCTIONS The safety and operating instructions should be retained for future reference. HEED WARNINGS All warnings on the unit and in the operating instructions should be adhered to. FOLLOW INSTRUCTIONS All operating and use instructions should be followed.
  • Page 6 IMPORTANT SAFEGUARDS (CONTINUED) OUTDOOR ANTENNA GROUNDING If an outside antenna or cable system is connected to the unit, be sure the antenna or cable system is grounded so as to provide some protection against voltage surges and built-up static charges. Section 810 of the National Electrical Code, ANSI/NFPA 70, provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes, and requirements for the grounding electrode.
  • Page 7 IMPORTANT SAFEGUARDS (CONTINUED) EXAMPLE OF ANTENNA GROUNDING AS PER THE NATIONAL ELECTRICAL CODE ANTENNA LEAD IN WIRE GROUND CLAMP ANTENNA DISCHARGE UNIT (NEC SECTION 810-20) ELECTRIC SERVICE EQUIPMENT GROUNDING CONDUCTORS (NEC SECTION 810-21) GROUND CLAMPS POWER SERVICE GROUNDING NEC-NATIONAL ELECTRICAL CODE ELECTRODE SYSTEM (NEC ART 250, PART H) S2898A...

  • Page 8: When Replacing Dvd Deck

    WHEN REPLACING DVD DECK [ When removing the DVD Deck ] Before removing Pick Up PCB and DVD MT PCB connector, the short circuit the position shown in Fig. 1 using a soldering iron. If you remove the DVD Deck with no soldering, the Laser may be damaged. [ When installing the DVD Deck ] Remove all the soldering on the short circuit position after the connection of Pick Up PCB and DVD MT PCB connector.

  • Page 9: Parental Control-Rating Level

    PARENTAL CONTROL - RATING LEVEL 4 DIGIT PASSWORD CANCELLATION If the stored 4 digit password in the Rating Level menu needs to be cancelled, please follow the steps below. Turn Unit ON. Set the DVD Mode. Confirm that the 'No Disc' will be appeared on the screen. Press and hold the '7' key on the remote control unit.

  • Page 10: Table Of Contents

    TABLE OF CONTENTS GREEN PRODUCT PROCUREMENT ..................A1-1 LEAD-FREE SOLDER ........................ A1-1 CAUTION ............................ A1-2 SERVICING NOTICES ON CHECKING ..................A1-3 HOW TO ORDER PARTS ......................A1-3 IMPORTANT SAFEGUARDS ..................... A1-4~A1-6 WHEN REPLACING DVD DECK ....................A1-7 DISC REMOVAL METHOD AT NO POWER SUPPLY ............. A1-7 PARENTAL CONTROL-RATING LEVEL ..................
  • Page 11 GENERAL SPECIFICATIONS CRT Size / Visual Size 24 inch / 600mmV System CRT Type Flat Magnetic Field BV/BH +0.45G / 0.18G Color System NTSC Speaker 2 Speaker Position Front Size 1.8 x 3.9 inch Impedance 8 ohm Sound Output 2.5W + 2.5W 10%(Typical) DVD System Color System...
  • Page 12 GENERAL SPECIFICATIONS Regulation Safety Radiation X-Radiation DHHS Laser DHHS Temperature Operation +5oC ~ +40oC Storage -20oC ~ +60oC Operating Humidity Less than 80% RH On Screen Menu(TV) Display Menu Type Icon TV Setup Picture Audio Picture Preference Channel Setup TV/CABLE Auto CH Memory Add/ Delete V-chip Setup...
  • Page 13 GENERAL SPECIFICATIONS G-10 On Screen Menu (DVD) Display Menu Type Icon Language Menu Subtitle Audio OSD Language(Set up Language) Video E.B.L. (Enhanced Black Level) TV Screen Size(4:3) OSD Display On/Off Picture Mode (Video/Film/Auto) JPEG Interval Screen Saver Audio DRC (Dynamic Range Control) Dialogue (On DRC[TV] / Off DRC[Std]) Surround System...
  • Page 14 GENERAL SPECIFICATIONS G-13 Remote Unit RC-MG Control Glow in Dark Remocon Remocon Format TOSHIBA Format TOSHIBA Custom Code 40-BF H, 44-BB H, 45-BA H, 45-BC H Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys 47 Key...

  • Page 15: Tray Lock

    GENERAL SPECIFICATIONS G-14 Features CABLE (TV) Auto Shut Off Auto Setup Auto CH Memory V-Chip USA V-chip CANADA V-chip Auto Search Game Position FM Transmitter Energy Star Closed Caption Comb Filter (2lines) Protect of FBT Leak Circuit Picture Preference Choke Coil Power On Memory Features Tray Lock...
  • Page 16 Height (cm) 60 (ORION SPEC:31) Container Stuffing (40' container) 180 Sets G-20 Material Cabinet Front 94V0 DECABROM Rear 94V0 DECABROM Jack Panel Non-Halogen Demand Eyelet Demand G-21 Environment Environmental standard requirement Green procurement of TOSHIBA Pb-free Phase3(Phase3A) Measures for Whisker A3-6...

  • Page 17: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF MECHANICAL PARTS 1-3: AV PCB/DVD BLOCK (Refer to Fig. 1-3) Unlock the support 1. AND P.C. BOARDS Remove the Plate Bottom Holder. 1-1: BACK CABINET (Refer to Fig. 1-1) Remove the screw 2. Remove the 6 screws 1. Disconnect the following connectors: Remove the 2 screws 2 which are used for holding the (CP303, CP404 and CP3800).
  • Page 18 DISASSEMBLY INSTRUCTIONS 1-5: DVD MT PCB/DVD DECK (Refer to Fig. 1-5) 1-6: AV PCB (Refer to Fig. 1-6) Remove the screw 1. Short circuit the position shown in Fig. 1-5 using a Remove the 2 screws 2. soldering iron. If you remove the DVD Deck with no Remove the 4 screws 3.

  • Page 19: Removal Of Dvd Deck Parts

    DISASSEMBLY INSTRUCTIONS 2. REMOVAL OF DVD DECK PARTS NOTE 1. Do not disassemble the DVD DECK PARTS except listed parts here. Minute adjustments are needed if the Main Frame Ass'y disassemble is done. If the repair is needed except listed parts, replace the DVD MECHA ASS'Y.
  • Page 20 DISASSEMBLY INSTRUCTIONS 2-3: LOADING MOTOR PCB ASS'Y/ LOADING BELT (Refer to Fig. 2-3-A) Pulley Gear Rack Loading Remove the Loading Belt. Remove the screw 1. Main Gear Remove the 2 screws 2. Remove the Loading Motor PCB Ass'y. Main Frame Ass’y Remove the Pulley Gear.
  • Page 21 DISASSEMBLY INSTRUCTIONS 2-6: TRAVERSE HOLDER/INSULATOR (F)/INSULATOR NOTE (R) (Refer to Fig. 2-6-A) When pushing the Rack Feed in the direction of the Remove the Traverse Holder. arrow, it should be restored to the original position by the Remove the 2 Insulator (F). spring force.
  • Page 22 DISASSEMBLY INSTRUCTIONS 2-8: FFC WIRE HANDLING When installing the FFC, fold it correctly and install it as shown from Fig. 2-8-A to Fig. 2-8-C. NOTE Do not make the folding lines except the specified positions for the FFC. [ 24 pin FFC ] Pick Up Side 54 ±...

  • Page 23: Removal Of Anode Cap

    DISASSEMBLY INSTRUCTIONS 3. REMOVAL OF ANODE CAP 3. After one side is removed, pull in the opposite direction to remove the other. Read the following NOTED items before starting work. NOTE After turning the power off there might still be a potential Take care not to damage the Rubber Cap.

  • Page 24: Removal And Installation Of Flat Package Ic

    DISASSEMBLY INSTRUCTIONS 4. REMOVAL AND INSTALLATION OF FLAT 3. When IC starts moving back and forth easily after desoldering completely, pickup the corner of the IC using PACKAGE IC a tweezers and remove the IC by moving with the IC REMOVAL desoldering machine.
  • Page 25 DISASSEMBLY INSTRUCTIONS INSTALLATION 4. When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin- 1. Take care of the polarity of new IC and then install the tip Soldering Iron. (Refer to Fig. 4-8.) new IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.

  • Page 26: Service Mode List

    SERVICE MODE LIST This unit is provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter to the SERVICE MODE function, press and hold both buttons simultaneously on the main unit and on the remote control for more than the standard time (second).
  • Page 27 WHEN REPLACING EEPROM (MEMORY) IC CONFIRMATION OF INITIAL DATA If a service repair is undertaken where it has been required to change the MEMORY IC, the following steps should be taken to ensure correct data settings while making reference to TABLE 1. NOTE: No need to set data for after position INI 67.
  • Page 28 ELECTRICAL ADJUSTMENTS BEFORE MAKING ELECTRICAL FUNCTION FUNCTION ADJUSTMENTS COLNA OSDC TNTCA Read and perform these adjustments when repairing the CUT OFF SHRPA HPOSI SBIASA circuits or replacing electrical parts or PCB assemblies. HBLKL BRTCD HBLKR BRTXD CAUTION VSIZE BRTND VPOSI CNTCD •...

  • Page 29: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 2-4: WHITE BALANCE NOTE: Adjust after performing CUT OFF adjustment. horizontal line Place the set with Aging Test for more than 15 minutes. Receive the gray scale pattern from the Pattern Generator. Notch Using the remote control, set the brightness and contrast to normal position.
  • Page 30 ELECTRICAL ADJUSTMENTS 2-12: SEPARATION L,H 2-14: LEVEL Set the multi-sound signal generator L-ch=1KHz, R-ch Receive the VHF HIGH (70dB). =Non input and receive the RF signal. Connect the AC voltmeter to pin 6 and pin 1 of CP101. Connect the oscilloscope to the SP351 code. Activate the adjustment mode display of Fig.
  • Page 31 ELECTRICAL ADJUSTMENTS 2-16: TINT 2-17: COLOR CENTER Receive the color bar pattern. (RF Input) Receive the color bar pattern. (RF Input) Using the remote control, set the brightness, contrast, Using the remote control, set the brightness, contrast, color and tint to normal position. color and tint to normal position.
  • Page 32 ELECTRICAL ADJUSTMENTS 2-18: CONTRAST MAX Activate the adjustment mode display of Fig. 1-1 and press the channel button (22) on the remote control to select "CNTX". Press the RIGHT/LEFT button on the remote control until the contrast step No. becomes "61" Receive a broadcast and check if the picture is normal.
  • Page 33 ELECTRICAL ADJUSTMENTS PURITY AND CONVERGENCE 3-3: STATIC CONVERGENCE ADJUSTMENTS NOTE Adjust after performing adjustments in section 3-2. NOTE Receive the crosshatch pattern from the color bar Turn the unit on and let it warm up for at least 30 generator. minutes before performing the following adjustments.

  • Page 34: Crt

    ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) CRT PCB CP804 TP022 TP024 J801 TP023 CP802B CP801 CP803B CD801 CD802 CP803A VR3800 J4201 J4203 FB401 AC IN CP101 CD3800 TP401 S3801 R423 S3802 CP3800 CP404 CP802A CP8002 VR404 CD303 CP8001 CP303...

  • Page 35: Mechanical Exploded Views

    MECHANICAL EXPLODED VIEW 102B 102B 102B 102A PCB110 (CRT PCB ASS'Y) 101K 101J 101B 101K 101I 101H 101K 101D 101E 101A 101C 101G 101L 101F I1-1...
  • Page 36 MECHANICAL EXPLODED VIEW PCB130 (DVD MT PCB ASS'Y) PCBD20 (AV PCB ASS'Y) I1-2...
  • Page 37 MECHANICAL EXPLODED VIEW (PACKING DIAGRAM) 131 132, 133, 134, BL001, TM101 I1-3...

  • Page 38: Dvd Deck Exploded View

    DVD DECK EXPLODED VIEW Cannot supply by a unit. M2603 PCB610 (LOADING MOTOR PCB ASS'Y) CD2302 CD2301 PCB640 CD2001 (SW PCB ASS'Y) Do not replace the parts. Because, minute adjustments are needed if this condition is disassembled further more. If the repair is needed, replace the DVD MECHA ASS'Y.

  • Page 39: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description 72781149 7A701A353A FRONT CABI ASS'Y 101A 72799317 701WPJC963 CABINET,FRONT 101B 72799459 712WPJC136 FLAP,DVD 101C 72795680 8995034000 CORD CLIP UL CO. 101D 75002958 713WPA0321 GLASS,LED 101E 75002959 713WPA0322 GUIDE,REMOCON 101F 75002960 7230007779 AV,LABEL...

  • Page 40: Dvd Deck Replacement Parts List

    DVD DECK REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description ! 600 72783201 A2I301H650 DVD MECHA ASS'Y A2I301H650 72795767 92P100109A HOLDER,TRAVERSE 72795768 92P100094A CLAMPER 72795769 92P100088A GEAR,MOTOR 72798813 92AAA0013A FEED RACK ASS'Y 72795771 92P200013A INSULATOR(F) 72795772 92P200014A INSULATOR(R) 72781331 92SBB0029A LOADER SUB ASS'Y...

  • Page 41: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS ! R401 72795515 R4X5T6472F R,METAL 4.7K OHM 1/6W ! R403 72794594 R4X5T6183F R,METAL 18K OHM 1/6W ! R405 72795516 R4X5T6153F R,METAL 15K OHM 1/6W ! R406 72795508 R3X18A151J R,METAL OXIDE 150 OHM 2W ! R412...
  • Page 42 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description DIODES D414 72794471 D97U03001B DIODE,ZENER MTZJ30B T-77 ! D415 72794472 D2WTAU02A0 DIODE,SILICON AU02A-EIC D416 72795626 D2WXN40050 DIODE,SILICON 1N4005-EIC D417 72794478 D97U06R81B DIODE,ZENER MTZJ6.8B T-77 D418 72794465 D97U03301B DIODE,ZENER MTZJ33B T-77 D419 72794491 D1VT001330...
  • Page 43 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description IC1503 72794502 I0UF015010 MM1501XNRE ! IC2301 72783216 I03FV65650 LA6565VR-TLM-E ! IC3001 72795906 I1KA78R050 KIA278R05PI ! IC3003 72795906 I1KA78R050 KIA278R05PI ! IC3004 72797593 I1KA98R060 KIA278R06PI ! IC3800 72794512 000220002W PHOTO COUPLER PS2561AL1-1-V(W) IC4001 72783220...
  • Page 44 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description COILS &TRANSFORMERS ! L3800 72783671 028T250021 COIL,DEGAUSS T028R25021 ! L3801 72796632 029T000105 COIL,LINE FILTER 2R2A752F28 ! L3802 72796632 029T000105 COIL,LINE FILTER 2R2A752F28 L3803 72796644 02A6B2E0A1 CORE,FERRITE HF70T22*10*14 L4001 72795936 02167F2R2J COIL 2.2 UH...
  • Page 45 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description MISCELLANEOUS CD803 72794461 WCL6840038 FLAT CABLE AWM2468 A WG26 5C GRAY 400MM CP101 72796805 069S290639 CONNECTOR PCB SIDE A2001WR2-9P CP303 72796793 069S140419 CONNECTOR PCB SIDE A2502WV2-4P ! CP404 72795550 069S460089 CORD,UX CONNECTOR A1561WV2-A6P...
  • Page 46 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...

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