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Toshiba 65H81 Service Manual

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FILE NO. 020-200113

SERVICE MANUAL

COLOR TELEVISION
N1PSP Chassis
65H81
(TAC0153)
PUBLISHED IN JAPAN, Jul., 2001 So

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Summary of Contents for Toshiba 65H81

  • Page 1: Service Manual

    FILE NO. 020-200113 SERVICE MANUAL COLOR TELEVISION N1PSP Chassis 65H81 (TAC0153) PUBLISHED IN JAPAN, Jul., 2001 So...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS .............................. 3 CRT ASSEMBLY REPLACEMENT AND MOUNTING ....................4 PICTURE TUBE COMPONENTS ADJUSTMENT ......................6 SERVICE MODE ................................9 ELECTRICAL ADJUSTMENT ............................11 CONVERGENCE ADJUSTMENT ..........................13 SCREEN AND MIRROR ALIGNMENTS ........................15 CIRCUIT CHECKS ...............................

  • Page 3: Chapter 1 General Adjustments

    CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW. X-RAY RADIATION PRECAUTION 1. Excessive high voltage can produce potentially hazardous 2. This receiver is equipped with a Fail Safe (FS) circuit which X-RAY RADIATION.

  • Page 4: Crt Assembly Replacement And Mounting

    CRT ASSEMBLY REPLACEMENT AND MOUNTING CAUTION : DO NOT LOOSEN THE HEX HEAD BOLTS WITH SPRINGS (12 PCS), BECAUSE THOSE ARE FOR SEALING OF CRT COOLANT. Attention Serviceman The Hex Head Bolts with Springs. (see sketch) used on CRT assembly, 8 o’clock are “NOT”...

  • Page 5: Servicing Precautions

    TO REMOVE CRT (Same procedure for R, G, B) 1. Remove CRT DRIVE Board, S. V. M. COIL and DEF. YOKE from CRT. 2. Remove Lens Assembly. 3. Detach CRT Anode Cap from CRT. 4. Remove CRT Assembly from CRT Mounting. Anode Cap CRT REPLACEMENT (Same procedure for R, G, B) Reverse the removal procedures except the followings.

  • Page 6: Picture Tube Components Adjustment

    WARNING : BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRE- CAUTION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL. PICTURE TUBE COMPONENTS ADJUSTMENT Pole 4, 6 magnet Pole 2 magnet DESCRIPTION OF NECK COMPONENTS 2. Select adjustment mode (see page 9). 3.
  • Page 7 R, G, B FOCUS ADJUSTMENT TILT ADJUSTMENT 1. Before adjusting the R, G, B FOCUS, remove the 4 screws Rotate R, G, B deflection yoke so that picture becomes hori- of Lens Assembly which is fixed on the CRT Assembly. zon, then fasten screw.
  • Page 8 LOCATION OF SCREEN AND FOCUS VR’S SCREEN VR FOCUS VR Speaker grille REPLACEMENT OF HIGH VOLTAGE CABLE 1. When replacing Anode Lead or Anode Cap with new one, remove Lead Holder from old lead as shown in figure ANODE LEAD below, and put it on new lead.

  • Page 9: Service Mode

    SERVICE MODE 1. ENTERING TO SERVICE MODE 1) Press MUTE button twice 2) Press MUTE button 3) While pressing the MUTE button, on Remote Control. again to keep pressing. press MENU button on TV set. 1/2 MUTE MUTE (Service mode display) 2.
  • Page 10 4. SELECTING THE ADJUSTING ITEMS 1) Every pressing of CHANNEL s button in the service mode changes the adjustment items in the order of table-2. (t button for reverse order) Refer to table-2 for preset data of adjustment mode. (See SETTING & ADJUSTING DATA on page 17) 5.

  • Page 11: Electrical Adjustment

    ELECTRICAL ADJUSTMENT ITEM ADJUSTMENT PROCEDURE ƒH 1. Receive NTSC signal. (free-running fre- 2. Short the terminal “TP +9V ” and the terminal “ TP (Free run) ” on the signal board with a jumper quency of Hor. wire. oscillator) 3. Connect the probe of frequency counter to the lead of R426 and GND. 4.
  • Page 12 ITEM ADJUSTMENT PROCEDURE HEIGHT 1. Receive NTSC signal. (HIT) 2. Select the "FULL" mode by PIC SIZE button on Remote Control. 3. Call up the adjustment mode display and select the item HIT. 4. Press the VOLUME s or t button to get the picture so that top and bottom of video signal begin to lack.

  • Page 13: Convergence Adjustment

    CONVERGENCE ADJUSTMENT Adjust convergence from center to circumference in order. 1. Select the adjustment mode following the steps on page KEY FUNCTION IN THE CONVERGENCE ADJUSTMENT: RCUT Up : 2 button Selet Green color: 3 button Left : 4 button Blinking of cursor ON/OFF: 5 button Right:...
  • Page 14 Adjusting Dimension of Each Picture Screen (16:9 screen size:) 50 inches (1) HD (1080I/NTSC) QH173,16KB Vspan 50.5mm Hspan 115mm 353.5 303.0 151.5 Screen center 151.5 303.0 353.5 31.0 690.0 575.0 345.0 115.0 115.0 345.0 575.0 690.0 31.0 65 inches 16:9 Screen size : Horizontal 1442 mm Vertical 810 mm NOTES...

  • Page 15: Screen And Mirror Alignments

    SCREEN AND MIRROR ALIGNMENTS ASSEMBLING OF FRONT SCREEN MOUNTING OF FRONT SCREEN INSIDE 0 to 1 mm OUT SIDE K503 FRONT PANEL K501 K502 LENTICULAR FRESNAL <INSIDE> SMOOTH LENS FRESNEL LENTICULAR FRONT PANEL BLACK STRIPES <OUTSIDE> BLACK STRIPES SMOOTH BEZEL SPACER FRONT PANEL LENTICULAR...

  • Page 16: Circuit Checks

    CIRCUIT CHECKS HIGH VOLTAGE CHECK FS CIRCUIT CHECK CAUTION: There is no HIGH VOLTAGE ADJUSTMENT on The Fail Safe (FS) circuit check is indispensable for the final this chassis. Checking should be done following check in servicing. Checking should be done following the the steps below.

  • Page 17: Chapter 2 Specific Informations

    CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 65" HIGH VOLTAGE AT ZERO BEAM: 31.0 kV MAX HIGH VOLTAGE: 32.5 kV Table-1 SERVICE MODE ADJUSTING ITEMS AND DATA IN THE SERVICE MODE: Item Name of adjustment Preset Data Item Name of adjustment Preset...

  • Page 18: Location Of Controls

    LOCATION OF CONTROLS TV front Remort sensor (Behibd the screen) Channel ts Volume T S Menu tsT S Automatic Light Sensor VOL T SVOL POWER MENU POWER EXIT TV/VIDEO Video 3 Power indicator Video/audio inputs (behind the door) TOUCH FOCUS TV rear ANT (75Ω) AUDIO CENTER...

  • Page 19: Remote Control

    Remote Control RECALL LIGHT RECALL POWER LIGHT POWER TV/CABLE/VCR switch MUTE TV/VIDEO TIMER CABLE Set to “TV” to control the TV. TIMER MUTE TV/VIDEO CHANNEL s/t Channel Number VOLUME s/t CH RTN CH RTN FAVORITE ADV/ PIC SIZE POP CH ENTER POP CH s MENU/...

  • Page 20: Programming Channel Memory

    PROGRAMMING CHANNEL MEMORY The channel memory is the list of TV channel numbers the TV tunes in when you press the CHANNEL s or t button. First, use the TV/CABLE and CH PROGRAM functions to preset all active channels in your area automatically. If necessary, arrange the preset channels with the ADD/ERASE functions so that you can tune into only desired channels.

  • Page 21: Circuit Block Diagram

    CIRCUIT BLOCK DIAGRAM 65H81 Series BLOCK DIAGRAM – 21 – – 22 –...

  • Page 22: Mechanical Disassembly

    MECHANICAL DISASSEMBLY 1 Speaker Grille Removal 2 Control Panel Removal 3 Front Mask Removal A001 A201 (A268) 2 screws K501 A202 K502 (A214) K503 (A213) 8 screws (A224) A102 4 Shield Plate, Lens Removal 5 Mirror Removal 6 Back Board Removal 7 Light Box Removal 5 screws 4 screws...

  • Page 23: Chassis Replacement Parts List

    • The part number must be used when ordering parts, in order to assist in processing, be sure to include the Model number and Description. • The PC board assembly with mark is no longer available after the end of the production. Models : 65H81 Capacitors ..... CD Ceramic Disk : Plastic Film : Electrolytic Resistors ....
  • Page 24 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description C413 24214221 CERAMIC DISK CK45 B 500V 220PF K...
  • Page 25 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description C662 24206010 ELECTROLYTIC CE04WS 50V 1.0UF M...
  • Page 26 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description C7710 24105150 CERAMIC CHIP CC73CH 50V 15PF J...
  • Page 27 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description CD48 24590472 PLASTIC FILM CQ922M 50V 4700PF J...
  • Page 28 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description CH206 24105331 CERAMIC CHIP CC73CH 50V 330pF J CS03...
  • Page 29 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description CV21 24203100 ELECTORLYTIC CE04WS 16V 10UF M 7L 3A...
  • Page 30 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description CX309 24100104 CERAMIC CHIP CK73F 25V 100000PF Z CX552 24105820...
  • Page 31 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description CX844 24105221 CERAMIC CHIP CC73CH 50V 220PF J CZ28...
  • Page 32 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description R201 24011101 CHIP, METAL FILM, 1/20W 100 OHM J...
  • Page 33 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description R425 24366101 CARBON FILM, 1/6W 100 OHM J...
  • Page 34 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description R732 24366470 CARBON FILM, 1/6W 47 OHM J...
  • Page 35 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description R969 24366683 CARBON FILM, 1/6W 68K OHM J...
  • Page 36 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description R7776 24011472 METAL FILM CHIP 1/20W 4.7K J...
  • Page 37 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description RA49 24011102 CHIP, METAL FILM, 1/20W 1K OHM J...
  • Page 38 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description RH173 24011122 CHIP, METAL FILM, 1/20W 1.2K OHM J RH331 24011152...
  • Page 39 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description RS29 24366104 CARBON FILM, 1/6W 100K OHM J...
  • Page 40 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description RX115 24011272 METAL FILM CHIP 1/20W 2.7K J RX201 24011101...
  • Page 41 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description RX317 24019439 CHIP BLOCK P-8 1/16W P-8 470J RX557 24871681...
  • Page 42 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description RY21 24011101 CHIP, METAL FILM, 1/20W 100 OHM J...
  • Page 43 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description L305 23103775 COIL, FERRITE CHOKE, TEM2014...
  • Page 44 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description LX175 23103806 INDUCTOR, BEAD TEM2114T...
  • Page 45 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description * T461A 23192961 ANODE CAP ASSY, TCC5605AU KTC3875Y...
  • Page 46 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Q781 23205057 TRANSISTOR, CHIP 50V 150MA SM...
  • Page 47 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description QH306 23906585 IC, QUAD OP-AMP DMP14 14P NJM2058M QW17...
  • Page 48 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description QX630 23000803 IC, +2.5V 2% REG.SC-63 UPC2925T D314...
  • Page 49 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description D862 23118094 DIODE, EU2A...
  • Page 50 Location Location Location Location Location Location Location Location Location Location Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description Parts No. Parts No. Parts No. Parts No. Parts No. Description Description Description Description Description DV164 23316591 DIODE, ZENER, MA8100-M GJ28...
  • Page 51 SWITCH, 1C1P, PUSH PICTURE TUBE SA07 23145226 SWITCH, 1C1P, PUSH SA08 23145226 SWITCH, 1C1P, PUSH * V901R 23008518 CRT COUPLING R 65H81 SA09 23145226 SWITCH, 1C1P, PUSH * V902G 23008175 OTHER BLOCK, COUPLING G 50H81 SR81 23146577 RELAY, DLS5D1-O(M)0.25W DLS5D1-O(M)0.
  • Page 52 THIS PAGE IS INTENTIONALLY LEFT BLANK. – 54 –...
  • Page 53 SIGNAL BOARD PD0073 BOTTOM (FOIL) SIDE – 55 – – 56 –...
  • Page 54 DEF/POWER BOARD PD0074 BOTTOM (FOIL) SIDE – 57 – – 58 –...
  • Page 55 A/V BOARD PD0075 BOTTOM (FOIL) SIDE – 59 –...
  • Page 56 SRS-3D BOARD PD0076 BOTTOM (FOIL) SIDE – 60 –...
  • Page 57 DPC BOARD PD0077 BOTTOM (FOIL) SIDE – 61 –...
  • Page 58 DIGI-CONV BOARD PD0078 BOTTOM (FOIL) SIDE – 62 –...
  • Page 59 CONV-SEN BOARD PD0079 BOTTOM (FOIL) SIDE CRT DRIVE(RED) BOARD PD0080 BOTTOM (FOIL) SIDE – 63 –...
  • Page 60 CRT DRIVE(GRN) BOARD PD0080 BOTTOM (FOIL) SIDE CRT DRIVE(BLE) BOARD PD0080 BOTTOM (FOIL) SIDE – 64 –...
  • Page 61 SVM-R BOARD PD0080 BOTTOM (FOIL) SIDE SVM-G BOARD PD0080 BOTTOM (FOIL) SIDE SVM-B BOARD PD0080 BOTTOM (FOIL) SIDE – 65 –...
  • Page 62 FRONT BOARD PD0081 BOTTOM (FOIL) SIDE FRONT BOARD PD0081 BOTTOM (FOIL) SIDE FRONT BOARD PD0081 FRONT BOARD PD0081 BOTTOM (FOIL) SIDE BOTTOM (FOIL) SIDE – 66 –...
  • Page 63 WOW BOARD PD0220 BOTTOM (FOIL) SIDE – 67 –...
  • Page 64 NEXT HYPER BOARD PD0264 BOTTOM (FOIL) SIDE – 68 –...

  • Page 65: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SC5144 2SC3852 2SC752GTM 2SC752 2SA1788 2SD1763A 2SA562TM 2SC2482 2SC1569 2SA1015 2SC2655 2SC4544 2SC4721P 2SC1815 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 2SD1554 ON4409 RN2203 RN2201 2SD2253 RN2004 2SD1556 RN1203 2SD2553 RN1204 2SC5143 RN2204 RN1205 RN1202 RN1201 –...
  • Page 66 MEMO ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................– 70 –...
  • Page 67 MEMO ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................– 71 –...
  • Page 68 MEMO ..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................– 72 –...

  • Page 69: Specifications

    0-300 mV(rms) (30% modulation equivalent, 4.7 kohm) AUDIO CENTER CHANNEL INPUT 300 mV(rms) (30% modulation equivalent, 10 kohm) DIMENSIONS/MASS Dimension (W/H/D) Mass 65H81 59-7/16 x 60-10/16 x 29 inches 413 lbs (1,510 x 1,540 x 736 mm) (187.5 kg) SUPPLIED ACCESSORIES Remote Control with 2 size “AA”...
  • Page 70 TOSHIBA CORPORATION 1-1, SHIBAURA 1- CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...

  • Page 71: Schematic Diagram

    SCHEMATIC DIAGRAM MODEL : 65H81 Chassis No. TAC0153 WARNING: BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAUTION" AND "PRODUCT SAFETY NOTICE" ON THE MANUAL FOR THIS MODEL. CAUTION: The international hazard symbols "*" in the schematic diagram and the parts list designate components which have special characteristics important for safety and should be replaced only with types identical to those in the original circuit or specified in the parts list.
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