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Toshiba 27D46 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. 050-200606GR
(MFR'S VERSION A)
27D46
DOCUMENT CREATED IN JAPAN, March, 2006 GREEN

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  • Page 1: Service Manual

    (MFR’S VERSION A) SERVICE MANUAL COLOR TELEVISION 27D46 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 Normal Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Speaker 2 Speaker Position Front Side Size 2.0 x 3.5 Inch Impedance Sound Output 2.5+2.5 W 10%(Typical) NTSC3.58+4.43 /PAL60Hz Tuning Broadcasting System Analog...
  • Page 6 GENERAL SPECIFICATIONS On Screen Menu Display Menu Type Icon Picture Mode(Picture preference) Contrast Brightness Color Tint Sharpness Color Temperature Reset Sound Bass Treble Balance BBE On/Off Stable Sound On/Off Audio Language Digital Output(PCM/Dolby Digital) Surround On/Off Reset Set Up Language Clock Set TV/Cable Auto CH Memory...
  • Page 7 Timer Back-up (at Power Off Mode) more than G-10 Remote Unit RC-KK Control Glow in Dark Remocon Back Light Remocon Remocon Format Toshiba Format Toshiba Custom Code TV:40-BFh Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys...
  • Page 8 GENERAL SPECIFICATIONS G-11 Features Auto Degauss Auto Shut Off Canal+ Cable(CATV) Anti-theft Rental Memory(Last CH) Memory(Last Volume) V-Chip(Analog & Digital) Type USA,Orion Type Auto Search CH Allocation Just Clock Function CH Label VM Circuit Full OSD Premiere Comb Filter Lines Auto CH Memory Hotel Lock Closed Caption(Analog &...
  • Page 9 Height (cm) 60 (ORION SPEC:31) Container Stuffing Sets/40' container G-17 Cabinet Material Cabinet Cabinet Front PS 94V0 DECABROM Cabinet Rear PS 94V0 DECABROM Non-Halogen Demand Eyelet Demand G-18 Environment Environmental standard requirement (by buyer) Green procurement of Toshiba Pb-free Phase3(Pha 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 provided with the following SERVICE MODES so you can repair, examine and adjust easily. To enter the Service Mode, press both set key and remote control key for more than 2 seconds. Set Key Remocon Key Operations Releasing of V-CHIP PASSWORD.
  • 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. Table 1 CONFIRMATION OF INITIAL DATA Enter DATA SET mode by setting VOLUME to minimum.

  • Page 15: Re-Write For Digital Soft Firmware

    RE-WRITE FOR DIGITAL SOFT FIRMWARE JG198 JG199 Flash UP-Date Soft JG176 USA SD DTV ROM Serial Communication Disc DISC Change JIG Ref. No. Part No. Parts Name Remarks Serial Communication JG198 APJG198000 Connect the set to personal computer Change JIG Up-Date of the Firmware JG199 APJG199000...

  • 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 Use an isolation transformer when performing any •...
  • 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 ìAî press the channel button (17) on the remote control to select "BRI CENT".
  • Page 18 ELECTRICAL ADJUSTMENTS 2-9: HORIZONTAL POSITION 2-13: VERTICAL SIZE Receive the monoscope pattern. Receive the monoscope pattern. Using the remote control, set the brightness and contrast Using the remote control, set the brightness and contrast to normal position. to normal position. Activate the adjustment mode display of Fig.
  • Page 19 ELECTRICAL ADJUSTMENTS 2-17: OSD POSITION Receive the monoscope pattern from the Pattern Generator. 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 (00) on the remote control to select "OSD H".

  • 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 CD804 TP024 R805 CP804 TP022 R803 S801 J801 CP802B CP803 CP801B CD803 CD801 CD802 CP801A J702 J703 J708 J704 J701 CD1001 FB401 SPEAKER CP401 TP003 VR401 CP1001 W002 VR502 CP802A CP502...

  • Page 22: Micon/Chroma

    MICON/CHROMA BLOCK DIAGRAM CHROMA IC IC601 LA76327M-A-MPB-E 35 XTAL 3.58 X601 FB401 J801 3.579545MHz Q802, Q806 B OUT BLUE OUT FRONT -VIDEO VIDEO IN2 Q803, Q805 J705 G OUT GREEN OUT V801 Q801, Q804 30 Y IN V-OUT IC RED OUT R OUT YUV_IN IC401 LA7847-E...

  • Page 23: Sd Digital Module

    SD DIGITAL MODULE BLOCK DIAGRAM X2401 24.567MHz 16Mbit MOR FLASH IC2408 SST39VF1681-70-EKE RESET 256Mbit DDRSAM +3.3V IC2404 HY5DU561622DTP-D43 SD_DTV ASIC I2C1_CLK IC2401 I2C1_DATA ZR39640BGCG-B1 F/E_RESET TS_DATA TS_CLK TS_FRAME +2.6V TS_DVALID 8VSB/QAM/BTSC DEMOD. IC2402 ADATA CAS-220/CS BCLK +3.3V 94 93 AUDIO DAC IC2501 CS4345-CZZ 10 7...

  • Page 24: Printed Circuit Boards Main/Crt

    PRINTED CIRCUIT BOARDS MAIN/CRT (INSERTED PARTS) SOLDER SIDE CP801A C426 D404 D411 CP101 J701 B402 C427_1 J702 J703 D405 R408 J704 J708 W859 W183 W049 R441 L403 R411 C026 CME077A D409 W177 Q003 R430 C715 HS002 HS001 C442 W176 IC005 C425 IC004 W878...
  • Page 25 PRINTED CIRCUIT BOARDS MAIN/CRT (CHIP MOUNTED PARTS) SOLDER SIDE Q105 R127 R125 R176 R139 CCE070A IC199 R137 Q102 R115 R150 Q107 R136 R624 R138 R104 Q101 R102 R107 R108 R110 R109 R128 R169 R155 R168 IC102 R126 R638 R810 Q510 Q605 Q601 R814...

  • Page 26: Digital

    PRINTED CIRCUIT BOARDS DIGITAL (BOTTOM SIDE) DIGITAL (TOP SIDE) CCE139B CEE139B C2468 C2489 C2487_1 X2401 C2410_1 C2453 C2452 NR2408 C2490 C2402 C2488 C2411_1 B2402 C2403 C2412 C2406 R2464 R2457 C2405 C2493 R2456 R2465 C2492 R2494 C2425 C2424 C2444 C2515 C2420 R2509 C2430 IC2401...

  • Page 27: Micon

    MICON SCHEMATIC DIAGRAM (MAIN PCB) CP102 A2001WV2-7P W842 EEP_SCL SCL_EEP W860 EEP_SDA SDA_EEP C101 W843 IIC_OFF IIC_OFF 0.01 SDA1 C139 SDA2 SCL1 SCL2 C104 FROM/TO AV SW/SOUND AMP/TONE CTL D112 EEP ROM IC 128K SDA1 IC199 AT24C128N-10SU-1.8 SCL1 MTZJ5.6B T-77 S_IN D113 VOLUME...
  • Page 28 CHROMA/IF SCHEMATIC DIAGRAM (MAIN PCB) TU P 5V_SW Q611 KTC3209_Y S817X R631 FROM POWER 1.8 1/4W UN_REG.12V P.CON+5V_SW C638 Q609 KTC3209_Y R651 R650 P.CON+5V_SW UN_REG.12V Q608 KTC3209_Y R625 R632 FROM/TO AV SW/SOUND AMP/TONE CTL R623 1/4W 100 1/4W R647 R659 Y_IN U_IN 100 1/4W...
  • Page 29 DEFLECTION SCHEMATIC DIAGRAM (MAIN PCB) FROM/TO DY IC401 LA7847-E V.DRIVE CP401 V801 Pump up B06B-DVS-L_(LF) M68LWF088X50 L402 25.9 25.3 15.7 ELH5L4132N R407 S817Y R439 5.6K C425 0.001 CD803 (CP803) FROM/TO CRT/SVM CH823004 R417 R414 R459 R444 27K 1/4W +-1% 330K 2.2 1/2W C424 R405...
  • Page 30 POWER SCHEMATIC DIAGRAM (MAIN PCB) D516 RELAY DRIVE R515 Q504 10.9 1SS133 KTC3198 10K 1/4W S818X C516 RY501 0.001 B ALKS321_M60 TO AV SW/SOUND AMP/TONE CTL D505 W836 SOUND+B 21DQ09N P.CON+9V DEGAUSS COIL R501 R541 D538 L503 VRK0968-065-060 1 7W 0.22 1W 21DQ09N-FC4 TH501...
  • Page 31 TUNER SCHEMATIC DIAGRAM (MAIN PCB) DIGITAL/ANALOG TUNER W/NTSC_MPX TU001 TO CHROMA/IF ENG36A49KF 31.45 3.36 3.36 3.36 1.69 2.37 4.96 4.96 1.37 W844 A_TUNER_CVBS C004 0.1 B C001 0.1 B L004 C002 L003 22uH 0305 6.3V 100uH 0305 L001 C024 C007 0.01 B 22uH 0305 0.1 B...
  • Page 32 AV SW/SOUND AMP/TONE CTL SCHEMATIC DIAGRAM (MAIN PCB) YUV_IN(REAR) J704 R1014 MSP-213V1-652_NI_LF SOUND AMP IC V_IN IC1001 AN17822A U_IN FROM/TO CHROMA/IF Y_IN P.CON+5V R1015 VIDEO_IN1 VIDEO_IN2 S_VIDEO_IN[Y] S_VIDEO_IN[C] AV2 AUDIO IN/COX OUT P.CON+8V J708 C1003 V_IN C727 R734 MSP-213V2-732_NI_LF AUDIO_YUV[R] U_IN C1001 C724...
  • Page 33 CRT / SVM SCHEMATIC DIAGRAM CRT / SVM SCHEMATIC DIAGRAM (CRT PCB) L801 150uH 0607 FROM DEFLECTION FROM DEFLECTION R802 S801 CP801B (CP801A) B2013H02-5P 2.7K 1/4W R803 RED OUT RED OUT 180V Q804 Q801 100.6 KTC4217 15K 2W C802 R812 KTC3199_Y 123.0 0.001...
  • Page 34 COMB FILTER SCHEMATIC DIAGRAM (MAIN PCB) FROM TUNER D_Y_OUT D_C_OUT L1511 15uH 0305 BUFFER Q1508 2SC3052 C1535 L1505 15uH 0305 R1502 3.3K R1512 BUFFER Q1503 C1513 2SC3052 0.1 B W875 FROM MICON DIGITAL_H FROM/TO CHROMA/IF COMB FILTER IC IC1501 LA76605M-TLM-E COMB_Y C1529 COUT...
  • Page 35 ASIC SCHEMATIC DIAGRAM (DIGITAL PCB) ASIC/CLEAR CABLE ASIC IC2401 ZR39640BGCG-B1 (1/8 VDD&GND) TO FLASH ATSC/CLEAR CABLE ASIC 10 C IC2401 ZR39640BGCG-B1 (3/8 I/F) C2412 FOR IR RECIEVER C2413 0.1 B IVDD JG2401 C2414 0.1 B IVDD JG2409 C2415 0.1 B JG2410 IVDD C2416...
  • Page 36 SDRAM SCHEMATIC DIAGRAM (DIGITAL PCB) IC2401 ZR39640BGCG-B1 (4/8 DDR SDRAM) DDRDQ3 SDATA0 R2432 DDRA2 DDRDQ4 SADR2 SDATA1 DDRA3 R2433 DDRDQ1 SADR3 SDATA2 DDRDQ2 NR2410 SDATA3 4D02WGJ0220TCE DDRA5 DDRDQ6 SADR5 SDATA4 DDRCKE SCKE 256Mbit DDR SDRAM DDRA7 DDRDQ0 SADR7 SDATA5 IC2404 HY5DU561622DTP-D43 DDRA9 SADR9...
  • Page 37 FLASH SCHEMATIC DIAGRAM (DIGITAL PCB) ATSC/CLEAR CABLE ASIC IC2401 ZR39640BGCG-B1 (5/8 FLASH MEMORY) GDAT15 JG2411 GDAT14 JG2412 GDAT13 GDAT13 GDAT12 GDAT12 GDAT11 16Mbit(x8) NOR FLASH Firm wrote GDAT11 IC2408 SST39VF1681-70-4C-EKE GDAT10 GDAT10 GDAT8 GDAT9 GDAT9 GDAT9 GADR15 GDAT8 GDAT8 GADR14 GDAT7 GDAT7 GADR13...
  • Page 38 FRONT END SCHEMATIC DIAGRAM (DIGITAL PCB) FROM AV OUT C2401 R2471 C2552 R2442 IF_OUT1_P 0.01 B C2555 R2443 C2505 X2402 IF_OUT2_N 100GA02502 0.01 B B2408 56P CH 25.000MHz FCM1608KF-151T06 C2503 C2479 +-50ppm 100P CH L2402 C2508 C2504 0.22uH C2513 0.1 B R2508 C2509 0.1 B...
  • Page 39 AV OUT SCHEMATIC DIAGRAM (DIGITAL PCB) POWER_GND B3404 HCB3216KF-601T20 B3402 +2.6V HCB3216KF-601T20 B3405 ASIC+1.8V B3403 HCB3216KF-601T20 +3.3V FCM1608KF-151T06 B2405 FCM1608KF-151T06 CLOSE TO CP2403 FROM/TO FRONT END ATSC/CLEAR CABLE ASIC IC2401 ZR39640BGCG-B1 (7/8 COMPONENT VIDEO) F/E+1.8V IF_OUT1_P IF_OUT2_N AVID_PR IF_AGC ADATA_DEMOD TU_CLK L2404 TU_DATA...

  • Page 40: Chroma/If

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

  • Page 41: Waveforms

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

  • Page 42: Mechanical Exploded Views

    MECHANICAL EXPLODED VIEW 102C 102B 102A PCB110 102B (CRT PCB ASS'Y) PCBDH0 (DIGITAL PCB ASS'Y) 101G 101G 101G 101G PCB070 (MAIN PCB ASS'Y) 101F 101D 101G 101B 101E 101C 101A...
  • Page 43 MECHANICAL EXPLODED VIEW (PACKING DIAGRAM) 122,123,124, TM101...

  • Page 44: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description 72783579 7A7010189A FRONT CABI ASS'Y 101A 72783559 701WPJ1410 CABINET,FRONT 101B 72783245 711WPAA131 PLATE,FRONT 101C 72783246 712WPBA147 DOOR 101D 72783247 713WPAA229 GLASS,LED 101E 72783552 7235490075 AV,LABEL 101F 72783248 735WPBB468 BUTTON,ASS'Y 101G 72795625 800WQ0A041...

  • Page 45: 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 72794621 R3X28B010J R,METAL OXIDE OHM 3W ! R007 72794621 R3X28B010J R,METAL OXIDE OHM 3W ! R408 72794614 R65582010J R,FUSE OHM 1/2W ! R410...
  • Page 46 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description DIODES D106 72783214 D9WU05R62B DIODE,ZENER MTZJ5.6B-EIC D109 72795529 0021721150 SLR-342VCT32 D110 72795627 D2WXSB1400 DIODE,SCHOTTKY SB140-EIC D111 72795627 D2WXSB1400 DIODE,SCHOTTKY SB140-EIC D112 72794489 D97U05R61B DIODE,ZENER MTZJ5.6B T-77 D113 72794489 D97U05R61B DIODE,ZENER MTZJ5.6B T-77 D114...
  • Page 47 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description IC101 72783371 I56F07144A OEC7144A IC102 72795101 I9UF032290 PST3229NR IC199 72783591 S3W4022E01 MEMORY DATA AT24C128N-10SU-1.8 IC301 72783378 I5AFF11730 NJW1173V(TE1) ! IC401 72783379 I03SD78470 LA7847-E ! IC504 72794512 000220002W PHOTO COUPLER PS2561AL1-1-V(W) IC601 72783380...
  • Page 48 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description COILS &TRANSFORMERS L003 72794540 02167F101J COIL 100 UH L004 72794526 02167F220J COIL L301 72794526 02167F220J COIL L402 72795064 022100034A COIL,LINEARITY ELH5L4132N ! L403 72794529 02DK000058 COIL,CHOKE 02DK000058 ! L501 72796639 029X000098 COIL,LINE FILTER...
  • Page 49 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description MISCELLANEOUS B2420 72783356 024HC51023 CORE,BEADS FCM1608KF-102T02 B2421 72783357 024HC51513 CORE,BEADS FCM1608KF-151T06 B2423 72783356 024HC51023 CORE,BEADS FCM1608KF-102T02 B2501 72783356 024HC51023 CORE,BEADS FCM1608KF-102T02 B3402 72783358 024HC16014 CORE,BEADS HCB3216KF-601T20 B3403 72783357 024HC51513 CORE,BEADS FCM1608KF-151T06 B3404...
  • Page 50 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...

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