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Toshiba 27DF47 Service Manual

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SERVICE MANUAL

COLOR TELEVISION
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.
FILE NO. 050-200701GR
(MFR'S VERSION A)
27DF47
DOCUMENT CREATED IN JAPAN, February, 2007 GREEN

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  • Page 1: Service Manual

    (MFR'S VERSION A) SERVICE MANUAL COLOR TELEVISION 27DF47 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: 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 4: Table Of Contents

    TABLE OF CONTENTS GREEN PRODUCT PROCUREMENT ..................A1-1 LEAD-FREE SOLDER ........................A1-1 SERVICING NOTICES ON CHECKING ..................A1-2 HOW TO ORDER PARTS ......................A1-2 IMPORTANT ..........................A1-2 TABLE OF CONTENTS ....................... A2-1 GENERAL SPECIFICATIONS ..................... A3-1~A3-5 DISASSEMBLY INSTRUCTIONS 1. REMOVAL OF ANODE CAP ....................B1-1 2.

  • Page 5: General Specifications

    GENERAL SPECIFICATIONS CRT Size / Visual Size 27 inch / 676.0mmV System CRT Type Flat Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Display Capability 480i Speaker 2Speaker Position Front Side Size 2.0 x 4.7 Inch Impedance Sound Output 1.0 + 1.0 10%(Typical) NTSC3.58+4.43 /PAL60Hz Tuning...
  • Page 6 GENERAL SPECIFICATIONS Unit RC-NH Remote Control Glow in Dark Remocon Format Toshiba Remocon Format Toshiba Custom Code 40-BFh Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys 26 Keys Keys Power CH Up/MENU Cursor Up CH Down/MENU Cursor Down...
  • Page 7 GENERAL SPECIFICATIONS Picture Brightness, Contrast, Color, Tint, Sharpness G-10 Features Mode (Picture preference) Color Temperature Audio Tone Control (Bass, Treble, Balance) Stable Sound Surround SRS WOW(SRS 3D/Focus/Tru Bass) Variable Audio Out Tuning TV/CABLE CH Program Add/ Delete Label CH Label Video Label Favorite CH Lock...
  • Page 8 GENERAL SPECIFICATIONS Owner's Manual Language English / Spanish G-11 Accessories W/ Warranty Remote Control Unit Rod Antenna Poles Terminal Loop Antenna Terminal U/V Mixer DC Car Cord (Center+) Guarantee Card Warning Sheet Circuit Diagram Antenna Change Plug Service Station List Important Safety Instruction Dew/AHC Caution Sheet AC Plug Adapter...
  • Page 9 40 (ORION SPEC:25) Container Stuffing Sets/40' container G-16 Material Cabinet Cabinet Front PS 94V0 DECABROM Cabinet Rear PS 94V0 DECABROM Non-Halogen Demand Eyelet Demand G-17 Environment Environmental standard requirement Green procurement of Toshiba Pb- Free Phase3(PHASE3A) Measures for Whisker A3-5...

  • Page 10: Disassembly Instructions

    DISASSEMBLY INSTRUCTIONS 3. After one side is removed, pull in the opposite direction to 1. REMOVAL OF ANODE CAP 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 11: Removal And Installation Of Flat Package Ic

    DISASSEMBLY INSTRUCTIONS When IC starts moving back and forth easily after REMOVAL AND INSTALLATION OF desoldering completely, pickup the corner of the IC using a FLAT PACKAGE IC tweezers and remove the IC by moving with the IC desoldering machine. (Refer to Fig. 2-3.) REMOVAL NOTE Put the Masking Tape (cotton tape) around the Flat...
  • Page 12 DISASSEMBLY INSTRUCTIONS INSTALLATION When bridge-soldering between terminals and/or the soldering amount are not enough, resolder using a Thin-tip Take care of the polarity of new IC and then install the new Soldering Iron. (Refer to Fig. 2-8.) IC fitting on the printed circuit pattern. Then solder each lead on the diagonal positions of IC temporarily.

  • Page 13: 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 or on the main unit and on the remote control for more than a standard time in the appropriate condition.
  • Page 14 WHEN REPLACING EEPROM (MEMORY) IC 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. IN IT Table 1 CONFIRMATION OF INITIAL DATA Enter DATA SET mode by setting VOLUME to minimum.

  • Page 15: Servicing Fixtures And Tools

    SERVICING FIXTURES AND TOOLS JG176 2007 SD DTV Rom Disc JG205 JG206 Flash UP-Date Soft Disc Serial Communication Change JIG Ref. No. Part No. Parts Name Remarks Serial Communication Connect the set to personal computer JG205 APJG205000 Change JIG Up-Date of the Firmware JG206 APJG206000 Flash UP-Date Soft Disc...

  • Page 16: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 1. ADJUSTMENT PROCEDURE FUNCTION FUNCTION OSD H Read and perform these adjustments when repairing the CONT.CENT OSD C CONT.MAX circuits or replacing electrical parts or PCB assemblies. CUT OFF CONT.MIN H.POSI COL.CENT CAUTION H BLK L COL.MAX H BLK R COL.MIN •...
  • Page 17 ELECTRICAL ADJUSTMENTS 2-5: BRIGHT CENT Receive the monoscope pattern. (RF Input) Set the screen mode to FULL. Using the remote control, set the brightness and contrast to normal position. Activate the adjustment mode display of Fig. 1-1 and press the channel button (29) on the remote control to select "BRI.
  • Page 18 ELECTRICAL ADJUSTMENTS 2-10: HORIZONTAL SIZE 2-14: TRAPEZIUM Receive the monoscope pattern. Receive the crosshatch signal from the Pattern Generator. Using the remote control, set the brightness and Using the remote control, set the brightness and contrast contrast to normal position. to normal position.
  • Page 19 ELECTRICAL ADJUSTMENTS 2-17: OSD POSITION 2-18: Confirmation of Fixed Value (Step No.) Receive the monoscope pattern from the Pattern Please check if the fixed values of each of the adjustment Generator. item is set correctly referring below. Using the remote control, set the brightness and ANALOG DIGITAL VIDEO1, VIDEO2...

  • Page 20: Purity And Convergence

    ELECTRICAL ADJUSTMENTS 3-3: STATIC CONVERGENCE 3. PURITY AND 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.
  • Page 21 ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) CRT PCB TP024 R805 TP022 R803 J801 CP806 CP802B CP801B CP803 CD803 CD802 CD801 CP801A CP101 J702 J703 J704 J701 FB401 CP401 CD1001 TP003 SPEAKER W002 VR401 VR502 CP1001 CP802A DEGAUSS COIL L503 CP502...

  • Page 22: Micon/Chroma

    MICON/CHROMA BLOCK DIAGRAM CHROMA IC IC601 LA76327M-MPB-E FB401 J801 Q802, Q806 35 XTAL 3.58 X601 B OUT BLUE OUT Q803, Q805 3.579545MHz GREEN OUT G OUT FRONT -VIDEO VIDEO IN2 V801 Q801, Q804 J709 V-OUT IC RED OUT R OUT IC401 LA7847-E 30 Y IN V OUT...

  • Page 23: Sd Digital Module

    SD DIGITAL MODULE BLOCK DIAGRAM X2401 25MHz SPI FLASH IC2405 EN25P16-50HCP 5 6 2 DTV ASIC 256Mbit DDR SDSAM IC2401 IC2402 ZR39740HGCF-B0 HY5DU561622ETP-D43 +2.6V +2.6V 1 2 3 4 AUDIO DAC EEPROM IC2406 IC2403 CS4345-CZZ AT24C04N-10SU-2.7 10 7...

  • Page 24: Printed Circuit Boards Tv Mt/Crt

    PRINTED CIRCUIT BOARDS TV MT/CRT (INSERTED PARTS) SOLDER SIDE CP801A J701 J704 C430 D404 CP101 D412 W890 J703 R408 J702 W820 D405 D411 C733 W882 W889 W883 C715 R459 C405 W175 R430 L403 W176 Q003 W177 W013 W012 W178 R006 R441 S826Y W179...
  • Page 25 PRINTED CIRCUIT BOARDS TV MT/CRT (CHIP MOUNTED PARTS) SOLDER SIDE Q105 R127 CMF094A R125 C720 R744 R102 CCF076A R104 R131 R136 IC199 Q104 Q108 R115 Q106 Q506 Q510 R175 IC102 Q604 R810 R814 R626 R656 R039 R638 R038 R030 Q612 Q605 Q601 R635...

  • Page 26: Digital

    PRINTED CIRCUIT BOARDS DIGITAL (TOP SIDE) DIGITAL (BOTTOM SIDE) CEF242A R2414 R2415 C2468 R2402 X2401 C2469 R2416 NTSC C2470 C2471 R2425 R2506 R2426 NR2404 C2551 NR2405 R2503 R2460 C2554 C2454 C2535 C2538 C2414 C2547 R2461 R2472 IC2402 R2497 C2474 R2445 R2498 NR2407 NR2406...
  • Page 27 MICON SCHEMATIC DIAGRAM P.CON+5V (TV MT PCB) CP101 A2001WR2-8P SCL1 BUFFER SDA1 Q104 IIC_OFF VIDEO_OUT KTA1504S_Y_RTK IIC_OFF C139 DTV_RX R142 DTV_RX VIDEO_AMP DTV_TX C109 DTV_TX C104 Q108 +3.3V_D KTC3875S +3.3V R140 Y_RTK RESET RESET 390K EEP ROM IC 8K IC R117 R116 TO AV SW/SOUND AMP/TONE CTL...
  • Page 28 CHROMA/IF SCHEMATIC DIAGRAM (TV MT PCB) FROM POWER W886 P.CON+5V_SW UN_REG.12V Q609 KTD1691Y P.CON+5V_SW C638 Q608 W817 KTC3209_Y R650 R659 UN_REG.12V R632 FROM/TO AV SW/SOUND AMP/TONE CTL R625 100 1/4W R623 Y_IN 100 1/4W U_IN V_IN Q604 VIDEO_IN1 C628 KTC3875S_ R641 Y_RTK VIDEO_IN2...
  • Page 29 DEFLECTION SCHEMATIC DIAGRAM (TV MT PCB) FROM/TO DY V.DRIVE IC IC401 LA7847-E V801 Pump up M68LWF088X50 CP401 A1561WV2-A6P L402_1 25.9 25.3 15.7 311015027 R407_1 R439 5.6K 1/4W +-1% P.CON+5V_B C425 0.0012 TO CRT/SVM CD803 CD807 CH823004 CH823004 (CP803) (CP807) R417 R414 R459 R444...
  • Page 30 POWER SCHEMATIC DIAGRAM (TV MT PCB) CP501 003P-2100 D516 RELAY DRIVE R515 Q504 CP509 10.9 1SS133 KTC3198 4.7K 1/4W 003P-2100 C516 0.001 TO AV SW/SOUND AMP/TONE CTL RY501 D505 W836 W855 ALKS321_M60 SOUND+B SR290-F R501 R541 P.CON+9V DEGAUSS COIL L503 CP502 T028R27021 0.22 1W...
  • Page 31 TUNER SCHEMATIC DIAGRAM (TV MT PCB) TU001 ENG36E03KF 31.4 C038 0.001 B C040 0.1 B TO CHROMA/IF C002 W850 6.3V A_TUNER_CVBS L001 22uH 0607 DTV_DATA SDA1 DTV_CLOCK W824 LEVEL CONVERT SCL1 Q006 2SK393800L LEVEL CONVERT Q005 2SK393800L FRON/TO MICON AFT_MAIN DTV_TX DTV_RX DEGI_ST_L...
  • Page 32 AV SW/SOUND AMP/TONE CTL SCHEMATIC DIAGRAM (TV MT PCB) YUV_IN(REAR) R1014 FROM/TO CHROMA/IF J704 5.6K MSP-213V1-652_NI_LF V_IN SOUND AMP IC IC1001 AN17822A U_IN R1015 VIDEO_IN3 P.CON+5V 5.6K Y_IN VIDEO_IN1 VIDEO_IN2 S_VIDEO_IN[Y] S_VIDEO_IN[C] AT+5V V_IN C1003 U_IN Y_IN C1001 FROM TUNER TUNER_AUDIO[R] TUNER_AUDIO[L] FROM/TO MICON...

  • Page 33: Crt Block

    CRT / SVM SCHEMATIC DIAGRAM (CRT PCB) CRT BLOCK L801 150uH 0607 FROM DEFLECTION R802 CP801B 2.7K 1/4W R803 FROM DEFLECTION B2013H02-5P RED OUT RED OUT 180V Q804 C802 S801 Q801 100.6 15K 2W KTC4217 R812 KTC3199_Y 123.0 0.001 TP022 D810 C811 R817...
  • Page 34 POWER & GROUND SCHEMATIC DIAGRAM FROM/TO SDRAM (DIGITAL PCB) FROM/TO FLASH/GPIO FROM/TO VIF/SIF DTV_ASIC IC DTV_ASIC IC IC2401 ZR39740HGCF-B0 (1/6 POWER) IC2401 ZR39740HGCF-B0 (2/6 GND) FROM/TO AV IN/OUT VDD Bypass Cap Place cap near pin C2424 3V3_D ADAC_VDD MVDD VDD Bulk Bypass cap 0.1 B Place 1 cap per side of ZR740 ADAC_VSS...
  • Page 35 FROM/TO POWER & GROUND SDRAM SCHEMATIC DIAGRAM (DIGITAL PCB) FROM/TO FLASH/GPIO FROM/TO VIF/SIF FROM/TO AV IN/OUT DTV_ASIC IC IC2401 ZR39740HGCF-B0 (3/6 DDR) NR2404 NR2401 4D02WGJ0150TCE 4D02WGJ0150TCE DDRWEN SWEN SDATA3 DDRDQ15 SWEN SDATA3 DDRRASN SRASN SDATA5 DDRDQ14 SRASN SDATA5 DDRBS1 SBS1 SDATA7 DDRDQ13 SBS1...
  • Page 36 FROM/TO POWER & GROUND FLASH/GPIO SCHEMATIC DIAGRAM (DIGITAL PCB) FROM/TO SDRAM FROM/TO VIF/SIF DTV_ASIC FROM/TO AV IN/OUT IC2401 ZR39740HGCF-B0 (4/6 FLASH/GPIO) JG2425 (SPI_HOLD) GPIO_03 NR2408 4D02WGJ0470TCE SPI_SO SD card update SPI_CLK SPI_CSN JG2445 C2472 CLKIN SPI_SI 18P CH SPI_WEN SPI_FLASH IC JG2409 3V3_D IC2405 EN25P16-50HCP...
  • Page 37 FROM/TO POWER & GROUND VIF/SIF SCHEMATIC DIAGRAM (DIGITAL PCB) FROM/TO SDRAM FROM/TO FLASH/GPIO FROM/TO AV IN/OUT DTV_ASIC IC IC2401 ZR39740HGCF-B0 (5/6 VIF/SIF) R2445 C2476 IF_P IFE_AIN_P 0.01 B R2446 C2477 IF_N IFE_AIN_N 0.01 B R2448 IF_AGC IF_AGC 2K +-1% JG2418 RF_AGC JG2419 AGC_SENSE...
  • Page 38 FROM/TO POWER & GROUND AV IN/OUT SCHEMATIC DIAGRAM (DIGITAL PCB) FROM/TO SDRAM Spurious filter FROM/TO FLASH/GPIO Place circuit near CP2403 DTV_ASIC B2407 IC2401 ZR39740HGCF-B0 (6/6 AV I/O) SD_H/SEL_SW FROM/TO VIF/SIF FCM1608KF-102T02 VDAC_COMP PIXOUT7 B2406 IF_AGC PIXOUT6 FCM1608KF-102T02 PIXOUT5 PIXOUT4 L2421_1 PB_OUT VDAC_U PIXOUT3...

  • Page 39: Deflection

    WAVEFORMS DEFLECTION POWER ON 20µs 10µs 200mV 10.0V AV/SOUND 20µs 20µs 20µs 200mV CHROMA/IF DEFLECTION 10µs 10ms 20µs 200mV 0.5V MICON 2µs 50µs 50µs 20µs 0.1ms 20µs NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 40: Crt/Svm

    WAVEFORMS DEFLECTION 50µs 200V AV/SOUND 20µs 200mV CRT/SVM 20µs 20µs 20µs NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 41: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW 102C 102B PCB110 (CRT PCB ASS'Y) 102A 102B PCBDH0 (DIGITAL PCB ASS'Y) 101I PCB070 101H (TV MT PCB ASS'Y) 101J 101D 101B 101G 101F 101E 101A 101C...
  • Page 42 MECHANICAL EXPLODED VIEW (PACKING DIAGRAM) 121, 122, 123, TM101...

  • Page 43: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description 75006463 7A701A849A FRONT CABI ASS'Y 101A 75006464 701WPJD391 CABINET FRONT 101B 72794709 711WPA0239 PLATE,FRONT 101C 72783334 712WPJ0956 DOOR 101D 72795045 713WPAA228 GUIDE,REMOCON 101E 72783335 7235490076 AV,LABEL 101F 72781985 7235490036 BADGE,BRAND 101G 72783336...

  • Page 44: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS R002 72794621 R3X28B010J R,METAL OXIDE OHM 3W R004 72796002 R3X28BR22J R,METAL OXIDE 0.22 OHM 3W R408 72794614 R65582010J R,FUSE OHM 1/2W R410 72795112 R3X18A181J R,METAL OXIDE 180 OHM 2W R411 72798042 R6558A5R6J...
  • Page 45 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description DIODES D512 72783906 D2LXSR2900 DIODE SCHOTTKY SR290-F D513 72794491 D1VT001330 DIODE,SILICON 1SS133T-77 D514 72794491 D1VT001330 DIODE,SILICON 1SS133T-77 D515 72794491 D1VT001330 DIODE,SILICON 1SS133T-77 D516 72794491 D1VT001330 DIODE,SILICON 1SS133T-77 D517 75003522 D2LXN49370 DIODE,FAST RECOVERY 1N4937-F...
  • Page 46 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description TRANSISTORS Q609 72781797 TDA0016910 TRANSISTOR SILICON KTD1691Y Q610 72794571 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q611 72794570 TCAT03209Y TRANSISTOR SILICON KTC3209_Y-AT Q612 72794571 TCAA3875SY TRANSISTOR SILICON KTC3875S_Y_RTK Q801 72794573 TCATC3199Y TRANSISTOR SILICON KTC3199_Y-AT Q802 72794573...
  • Page 47 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description MISCELLANEOUS BT002 72783174 141U004016 BATTERY,MANGAN MNAAA(R03) ! CD501 75005151 120Q414913 CORD AC BUSH P201-2469-2 CD801 72795620 WCL6842038 FLAT CABLE AWM2468 AWG26 5C GRAY 420MM CD802 75006460 WDL6054038 FLAT CABLE AWM2468 AWG26 6C BLACK 540MM CD803 72794460...
  • Page 48 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...

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