Toshiba 19A26C Service Manual
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Toshiba 19A26C Service Manual

Toshiba 19A26C 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. 050-200613GR
(MFR'S VERSION A)
19A26C
DOCUMENT CREATED IN JAPAN, March, 2006 GREEN

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  • Page 1: Service Manual

    (MFR’S VERSION A) SERVICE MANUAL COLOR TELEVISION 19A26C 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.REMOVAL AND INSTALLATION OF FLAT PACKAGE IC ...............

  • Page 5: General Specifications

    GENERAL SPECIFICATIONS CRT Size / Visual Size 19 inch / 480.0mmV System CRT Type Normal Magnetic Field BV/BH +0.45G/0.18G Color System NTSC Speaker 1Speaker Position Bottom Size 3 Inch Impedance Sound Output 1.5 W 10%(Typical) --- W NTSC3.58+4.43 /PAL60Hz Tuning Broadcasting System System M System...
  • Page 6 GENERAL SPECIFICATIONS On Screen Menu Display Menu Type Character Picture Contrast Brightness Color Tint Sharpness Audio Bass Treble Balance BBE On/Off Stable Sound On/Off CH Set Up TV/CABLE(CATV) Auto CH Memory Add/ Delete Language V-chip Lock On Timer CH Label Favorite CH Color Stream DVD/DTV Control Level...
  • Page 7 GENERAL SPECIFICATIONS G-10 Remote Unit RC-EH Control Glow in Dark Remocon Format Toshiba Custom Code 40-BF h Power Source Voltage(D.C) UM size x pcs UM-4 x 2 pcs Total Keys Keys Keys Power CH Up CH Down Volume Up Volume Down...
  • Page 8 GENERAL SPECIFICATIONS G-11 Features Auto Degauss Auto Shut Off Canal+ CATV Anti-theft Rental Memory(Last CH) Memory(Last Volume) V-Chip Type 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 Stable Sound...
  • Page 9 Height (cm) 60 (ORION SPEC:46) 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(Ph 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 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: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS 2. BASIC ADJUSTMENTS BEFORE MAKING ELECTRICAL ADJUSTMENTS 2-1: CUT OFF Read and perform these adjustments when repairing the Place the set in AV MODE without signal. circuits or replacing electrical parts or PCB assemblies. Using the remote control, set the brightness and contrast to normal position.
  • Page 15 ELECTRICAL ADJUSTMENTS 2-5: TINT 2-7: HORIZONTAL PHASE Receive the color bar pattern.(RF Input) Receive the monoscope pattern from the Pattern Connect the oscilloscope to TP023. Generator. Activate the adjustment mode display of Fig. 1-1 and Activate the adjustment mode display of Fig. 1-1 and press the channel button (22) on the remote control to press the channel button (05) on the remote control to select "TINT".
  • Page 16 ELECTRICAL ADJUSTMENTS 2-11: CONTRAST MAX Receive the color bar pattern.(RF Input) Activate the adjustment mode display of Fig. 1-1 press the channel button (17) on the remote control to select "CONT.MAX". Press the VOL. UP/DOWN button on the remote control until the contrast step No.

  • Page 17: Purity And Convergence

    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 18 ELECTRICAL ADJUSTMENTS 4. ELECTRICAL ADJUSTMENT PARTS LOCATION GUIDE (WIRING CONNECTION) CRT PCB CP806 CP803A TP022 TP023 CP802B CP801 CP502 S501B CD501 S501A CD101A SPEAKER CD101B MAIN PCB...

  • Page 19: Block Diagram

    BLOCK DIAGRAM J702 J703 CH. DOWN VOL. DOWN IC1001 AN7511 MICON/CHROMA IC IC101 OEC7091C CH. UP SPEAKER SOUND AMP SP1001 VOL. UP RGB Proc.2 OSD SW Q801 CONTRAST BRIGHTNESS POWER RGB OUTPUT Stage RED OUT DRIVE Chroma Proc. CUT OFF Q802 OS101 ACC/C-BPF...

  • Page 20: Printed Circuit Boards Main/Crt

    PRINTED CIRCUIT BOARDS MAIN/CRT (INSERTED PARTS) SOLDER SIDE CRITIQUE VOIR AUVERSO. D408 INFORMATIONPOUR SERVICE DESPIECE C406 ATTENTION R403 CP601 C435 W004 CP803A D410 C403 D405 C448_1 W009 W008 C434 C401 C440_1 FB401 R421 R408 L401 W001 W015 Q402 R542 Q401 R506 R446 C446...
  • Page 21 PRINTED CIRCUIT BOARDS MAIN (CHIP MOUNTED PARTS) SOLDER SIDE R702 R128 R101 IC199 Q607 R609 R627 R108 Q506 R532 R105_1 R129 Q505 R420...
  • Page 22 MICON/CHROMA/TUNER SCHEMATIC DIAGRAM (MAIN PCB) H.CTL Q607 R621 2SC2412K 220 1/4W R618 C118 FROM/TO DEFLECTION/CRT 6.3V R608 CLAMP 1K 1/4W P.CON+B S802Y C101 R110 V_OUT R109 0.01 B 10K 1/4W C630 10K 1/4W V_FEEDBACK AT+5V ABCL R124 H_OUT X-RAY C629 1 CNVSS 41 NC R130...
  • Page 23 TV POWER SCHEMATIC DIAGRAM (MAIN PCB) CAUTION :FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE 4A 125V (F501) FUSE. ATTENTION :POUR UNE PROTECTION CONTINUE LES RISQUES 4A 125V D’INCEIE N’UTILISER QUE DES FUSIBLE DE MEME TYPE 4A 125V (F501). TO SOUND/AV 11.3 R532...
  • Page 24 DEFLECTION/CRT SCHEMATIC DIAGRAM CP802A CP802B (MAIN PCB) B2013H02-5P B2013H02-5P FROM MICON/CHROMA/TUNER CLAMP CLAMP CLAMP CLAMP CLAMP G.OUT G.OUT G.OUT G.OUT G.OUT R.OUT R.OUT R.OUT R.OUT R.OUT B.OUT B.OUT B.OUT B.OUT B.OUT V-OUT IC IC401 STV9302B CP803A B2013H02-4P CP803B B2013H02-4P HEATER HEATER HEATER HEATER...
  • Page 25 SOUND/AV SCHEMATIC DIAGRAM (MAIN PCB) ACCESSORY RCA JACK WHITE TO MICON/CHROMA/TUNER J703 UM-4 (FRONT) AV1-09AD-4 BT001 GR03X-SP2 R703 W811 AUDIO 2 AUDIO_IN A_IN UM-4 BT002 TM101 GR03X-SP2 R704_1 V_IN VIDEO 2 RC-EH050(CT-859) VIDEO_IN 1/4W RCA JACK YELLOW J702 AV1-09AD-3 W807 FROM TV POWER CD101A SPEAKER...

  • Page 26: Micon/Chroma/Tuner

    WAVEFORMS MICON/CHROMA/TUNER 1 0.5V 2ms/div 5 1V 20µs/div 9 20V 20µs/div 10 2V 20µs/div 20V 20µs/div 6 1V 20µs/div 3 200mV 20µs/div 1V 20µs/div 200V 20µs/div DEFLECTION/CRT 0.5V 5ms/div 10V 5ms/div 8 0.5V 5ms/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 27: Sound/Av

    WAVEFORMS SOUND/AV 0.5V 1ms/div 10V 5ms/div 50V 20µs/div 1V 1ms/div 200mV 500µs/div 15 50V 20µs/div 20 500mV 20µs/div 16 50V 20µs/div NOTE: The following waveforms were measured at the point of the corresponding balloon number in the schematic diagram.

  • Page 28: Mechanical Exploded View

    MECHANICAL EXPLODED VIEW PCB110 (CRT PCB ASS'Y) 101D PCB070 (MAIN PCB ASS'Y) 101B 101C 101A...
  • Page 29 MECHANICAL EXPLODED VIEW (PACKING DIAGRAM) 111, 120, TM101...

  • Page 30: Mechanical Replacement Parts List

    MECHANICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description 72795617 7A701A420A FRONT CABI ASS'Y 101A 72795585 701WPJD025 CABINET FRONT 101B 72795615 713WPAA046 GLASS LED 101C 72795613 713WPAA050 GUIDE REMOCON 101D 72795588 735WPBA980 BUTTON FRAME 72784111 A3X302Q740 CABINET,BACK ASSY 72783474 726000A032 SHEET CRT SERVICEMAN...

  • Page 31: Electrical Replacement Parts List

    ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description RESISTORS ! R407 72797796 R002T23R9J 3.9 OHM 1/2W ! R408 72796016 R4X5T6103F R,METAL 10K OHM 1/6W ! R409 72797966 R4X5T6563F R,METAL 56K OHM 1/6W ! R429 72795521 R638813R9J R,FUSE 3.9 OHM 1W ! R447 72781689...
  • Page 32 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description IC199 72783483 A3X301Q075 INIT DATA BR24L02F-WE2 ! IC401 72783444 I0WTD9302B STV9302B ! IC501 72794512 000220002W PHOTO COUPLER PS2561AL1-1-V(W) ! IC1001 72795537 I01DP75110 TRANSISTORS Q105 72795555 TPATB03003 COMPOUND TRANSISTOR KRA102MAT ! Q401 72795478 TC1G058850...
  • Page 33 ELECTRICAL REPLACEMENT PARTS LIST Location No. TSB P/N Reference No. Description MISCELLANEOUS ! V801 72796977 098Q200490 CRT W/DY A48AKH13X04 X601 72783450 100BT3R537 CRYSTAL HC-49U RESISTOR RC....CARBON RESISTOR CAPACITORS CC....CERAMIC CAPACITOR CE....ALUMI ELECTROLYTIC CAPACITOR CP....POLYESTER CAPACITOR CPP....POLYPROPYLENE CAPACITOR CPL....
  • Page 34 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...

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