Toshiba N2PS CHASSIS 32HF72 Service Manual
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Toshiba N2PS CHASSIS 32HF72 Service Manual

Toshiba N2PS CHASSIS 32HF72 Service Manual

Toshiba crt television user manual
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See also: Owner's Manual
SERVICE MANUAL
COLOR TELEVISION
32HF72 , 32HFX72
(TAC0233)
32HF72, 32HFX72 are the same as 36HFX72 except for the parts tabled on back of this sheet.
Use this service manual together with the service manual of 36HFX72, 36HF72 (File No. 020-
200206).
– SUMMARY –
FILE NO. 023-200213
N2PS Chassis
(TAC0232)
PUBLISHED IN JAPAN, Jul., 2002 So

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Summary of Contents for Toshiba N2PS CHASSIS 32HF72

  • Page 1 SERVICE MANUAL COLOR TELEVISION 32HF72 , 32HFX72 (TAC0233) 32HF72, 32HFX72 are the same as 36HFX72 except for the parts tabled on back of this sheet. Use this service manual together with the service manual of 36HFX72, 36HF72 (File No. 020- 200206).
  • Page 2 REPLACEMENT PARTS LIST DIFFERENCES Location Location Part No. Description Part No. Description TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...
  • Page 3 FILE NO. 020-200206 SERVICE MANUAL COLOR TELEVISION N2PS Chassis 36HFX72 , 36HF72 (TAC0230) (TAC0231) PUBLISHED IN JAPAN. Jun. 2002 So...

  • Page 4: Table Of Contents

    CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS ... 3 SET-UP ADJUSTMENT ... 4 SERVICE MODE ... 8 ELECTRICAL ADJUSTMENTS ... 11 CIRCUIT CHECKS ... 13 CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA ... 14 LOCATION OF CONTROLS ... 15 PROGRAMMING CHANNEL MEMORY ... 17 CHASSIS AND CABINET REPLACEMENT PARTS LIST ...

  • Page 5: Chapter 1 General Adjustments

    CHAPTER 1 GENERAL ADJUSTMENTS WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” INSTRUCTIONS BELOW. 1. Excessive high voltage can produce potentially hazard- ous X-RAY RADIATION. To avoid such hazards, the high voltage must not be above the specified limit.

  • Page 6: Set-Up Adjustment

    WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL. The following adjustments should be made when a complete realignment is required or a new picture tube is installed. Perform the adjustments in order as follows : 1.
  • Page 7 CONVERGENCE ADJUSTMENTS NOTE: Before attempting any convergence adjustments, the receiver should be operated for at least fifteen minutes. CENTER CONVERGENCE ADJUSTMENT 1. Display built-in cross-dot pattern using the TEST SIG- NAL SELECTION function. 2. Adjust the BRIGHTNESS and CONTRAST Controls for well defined pattern.
  • Page 8 WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAU- TION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF SERVICE MANUAL. (SET-UP ADJUSTMENT FOR FLAT TUBE) The following adjustments should be made when a complete realignment is required or a new picture tube is installed. Perform the adjustments in order as follows : 1.
  • Page 9 (5)Adjust the sub-4-pole magnets only in case there is any deviation of Xv bow-shaped convergence. (To be usually set at the initial position) Align both sides with the sub-4-pole magnets and minimize the deviation of blue and red with the main 4-pole magnets. blue blue Main 4-pole magnet...

  • Page 10: Service Mode

    1. ENTERING TO SERVICE MODE 1) Press MUTE button twice on Remote Control. 1/2 MUTE MUTE 2. DISPLAYING THE ADJUSTMENT MENU 1) Press MENU button on TV. Service mode Press Press 3. KEY FUNCTION IN THE SERVICE MODE The following key entry during display of adjustment menu provides special functions. A single horizontal line ON/OFF: Test signal selection : Selection of the adjustment items :...
  • Page 11 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 14) 5.
  • Page 12 8. SELF DIAGNOSTIC FUNCTION 1) Press “9” button on Remote Control during display of adjustment menu in the service mode. The diagnosis will begin to check if interface among IC’s are executed properly. 2) During diagnosis, the following displays are shown. SELF CHECK NO.

  • Page 13: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS ITEM FOCUS VR ADJ 1. Enter the service mode, then select any register item. 2. Press the TV/VIDEO button on the Remote until the black cross-bar pattern ap- pears on the screen. 3. Adjust the FOCUS control (on T461) for well defined scanning lines on the picture screen.
  • Page 14 ITEM E-W PARABOLA (DPC) 1. Call up the adjustment mode display, then select the item PARA. (PARA) 2. Press the TV/VIDEO button on Remote until the cross-hatch pattern appears on the screen. 3. Press the VOLUME s or t button to make vertical lines straight as shown below. HORIZONTAL POSITION 1.

  • Page 15: Circuit Checks

    HIGH VOLTAGE CHECK CAUTION: There is no HIGH VOLTAGE ADJUSTMENT on this chassis. Checking should be done following the steps below. 1. Connect an accurate high voltage meter to the second an- ode of the picture tube. 2. Turn on the receiver. Set the BRIGHTNESS and CON- TRAST controls to minimum (zero beam current).

  • Page 16: Chapter 2 Specific Informations

    CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS HIGH VOLTAGE AT ZERO BEAM: MAX HIGH VOLTAGE: SERVICE MODE ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE: Item Name of adjustment RCUT R CUTOFF GCUT G CUTOFF BCUT B CUTOFF GDRV G DRIVE BDRV...

  • Page 17: Location Of Controls

    LOCATION OF CONTROLS (Representatives: 36HFX72) TV Front TV Rear Video/Audio inputs (Video 3) DEMO MENU TV/VIDEO VIDEO-3 IN S-VIDEO VIDEO L/MONO-AUDIO-R TV/VIDEO DEMO S-VIDEO COLOR COLOR VIDEO STREAM STREAM HD - 1 HD - 2 L/MONO AUDIO AUDIO AUDIO VIDEO-1 VIDEO-2 ColorStream Video 1/2...

  • Page 18: Remote Control

    Remote Control Power turns the TV on or off SLEEP sets the TV to turn at a specific time LIGHT The initial press of the LIGHT button causes two actions: Channel Numbers (0–9, 100) allow direct access to channels MODE cycles through the 6 device modes FAVOURITE allows access to Multi-Window function PIC SIZE cycles through the three picure formats...

  • Page 19: Programming Channel Memory

    PROGRAMMING CHANNEL MEMORY The channel memory is the list of TV channel numbers your TV will stop on 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 20: Chassis And Cabinet Replacement Parts List

    CHASSIS AND CABINET REPLACEMENT PARTS LIST WARNING: BEFORE SERVICING THIS CHASSIS, READ THE “X-RAY RADIATION PRECAUTION”, “SAFETY PRECAUTION” AND “PRODUCT SAFETY NOTICE” ON PAGE 3 OF THIS MANUAL. CAUTION: The international hazard symbols “ ponents 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.
  • Page 21 Location Parts No. Description C476 24214471 CERAMIC DISC, 500V B 470PF K C477 24666220 ELECTROLYTIC, 16V 22UF M 3A C480 24794100 ELECTROLYTIC, 16V 10UF M C481 24214121 CERAMIC DISC, 500V B 120PF K C481 24794100 ELECTROLYTIC, 16V 10UF M C482 24109122 CERAMIC CHIP, 50V B 1200PF K C488...
  • Page 22 Location Parts No. Description C884 24086049 ELECTROLYTIC, 160V 330UF M 3D C885 24214471 CERAMIC DISC, 500V B 470PF K C886 24214471 CERAMIC DISC, 500V B 470PF K C889 24668332 ELECTROLYTIC, 35V 3300UF M 3A C891 24082229 PLASTIC FILM, 250V 0.1UF D C893 24092335 CERAMIC DISC, 2KV R 150PF K...
  • Page 23 Location Parts No. Description CD19 24590183 PLASTIC FILM, 50V 0.018UF J (36HFX72) CD19 24567333 PLASTIC FILM, 50V 33000PF J (36HF72) CD20 24503038 MT PLA CAP 63V 0.056UF J (36HFX72) CD20 24503039 MT PLA CAP 63V 0.068UF J (36HF72) CD21 24590473 PLASTIC FILM, 50V 0.047MF J (36HFX72) CD21 24539104...
  • Page 24 Location Parts No. Description CV266 24794470 ELECTORLYTIC, 16V 47UF M CV269 24794470 ELECTORLYTIC, 16V 47UF M CV272 24794470 ELECTORLYTIC, 16V 47UF M CV275 24794470 ELECTORLYTIC, 16V 47UF M CW08 24794100 ELECTROLYTIC, 16V 10UF M CW09 24109103 CERAMIC CHIP, 50V B 0.01UF K CY23 24797100 ELECTROLYTIC, 50V 10UF M...
  • Page 25 Location Parts No. Description R514 24011103 CHIP, METAL FILM, 1/20W 10K OHM J R515 24011103 CHIP, METAL FILM, 1/20W 10K OHM J R525 24011752 CHIP, METAL FILM, 1/20W 7.5K OHM J R526 24011101 CHIP, METAL FILM, 1/20W 100 OHM J R543 24011680 CHIP, METAL FILM, 1/20W 68 OHM J...
  • Page 26 Location Parts No. Description R926 24366102 CARBON FILM, 1/6W 1K OHM J R928 24366151 CARBON FILM, 1/6W 150 OHM J R929 24366470 CARBON FILM, 1/6W 47 OHM J R930 24366180 CARBON FILM, 1/6W 18 OHM J R932 24366332 CARBON FILM, 1/6W 3.3K OHM J R933 24366750 CARBON FILM, 1/6W 75 OHM J...
  • Page 27 Location Parts No. Description R4819 24366102 CARBON FILM, 1/6W 1K OHM J R4820 24011103 CHIP, METAL FILM, 1/20W 10K OHM J R5020 24011101 CHIP, METAL FILM, 1/20W 100 OHM J R5030 24011101 CHIP, METAL FILM, 1/20W 100 OHM J R9701 24366821 CARBON FILM, 1/6W 820 OHM J RA01...
  • Page 28 Location Parts No. Description RD02 24366105 CARBON FILM, 1/6W 1M OHM J (36HFX72) RD02 24366223 CARBON FILM, 1/6W 22K OHM J (36HF72) RD03 24366101 CARBON FILM, 1/6W 100 OHM J RD04 24366101 CARBON FILM, 1/6W 100 OHM J RD05 24366101 CARBON FILM, 1/6W 100 OHM J (36HFX72) RD06 24366472...
  • Page 29 Location Parts No. Description RS109 24011392 CHIP, METAL FILM, 1/20W 3.9K OHM J RS110 24011471 CHIP, METAL FILM, 1/20W 470 OHM J RS112 24011223 CHIP, METAL FILM, 1/20W 22K OHM J RS113 24011392 CHIP, METAL FILM, 1/20W 3.9K OHM J RS114 24011471 CHIP, METAL FILM, 1/20W 470 OHM J RS116 24011223...
  • Page 30 Location Parts No. Description L836 23248235 COIL, CHOKE 12X18H 22MMH 4.2A, TLN3462AF L837 23280018 COIL, PEAKING, TRF4220AZ L861 23103941 COIL, CHOKE, TEM2011 L862 23103880 COIL, CHOKE, TEM2011Y L883 23103880 COIL, CHOKE, TEM2011Y L884 23103880 COIL, CHOKE, TEM2011Y L885 23248073 COIL, CHOKE, TLN3299D L886 23103880 COIL, CHOKE, TEM2011Y...
  • Page 31 Location Parts No. Description Q836 23114458 TRANSISTOR, RN1206 Q836 23319202 IC, MC7809CT Q836B 70391355 SCREW, 3X8MM Q837 23319202 IC, MC7809CT Q837B 70391355 SCREW, 3X8MM Q838 23319202 IC, MC7809CT Q838B 70391355 SCREW, 3X8MM Q839 23905239 IC, PQ30RV1 Q839B 70391355 SCREW, 3X8MM Q840 23905976 IC, PQ05RD11...
  • Page 32 Location Parts No. Description D408 23316472 DIODE, RGP10J D410 23118094 DIODE, EU2A D412 23118094 DIODE, EU2A D413 23118859 DIODE, 1SS133 D414 23316688 DIODE, ZENER, MTZJ9.1C D415 23316472 DIODE, RGP10J D417 23316726 DIODE, ZENER, MTZJ15C D418 23316726 DIODE, ZENER, MTZJ15C D419 23316716 DIODE, ZENER, MTZJ11B D420...
  • Page 33 Location Parts No. Description DV11 23316587 DIODE, ZENER CHIP VZ8.58-9.02V MA8091-L DV13 23316587 DIODE, ZENER CHIP VZ8.58-9.02V MA8091-L DV17 23316587 DIODE, ZENER CHIP VZ8.58-9.02V MA8091-L DV18 23316587 DIODE, ZENER CHIP VZ8.58-9.02V MA8091-L DV121 23316587 DIODE, ZENER CHIP VZ8.58-9.02V MA8091-L DV161 23316591 DIODE, ZENER, MA8100-M DV162 23316591 DIODE, ZENER, MA8100-M...
  • Page 34 Location Parts No. Description UA01 23787490 CONTROL-1 BOARD, PD0651A UA02 23787491 CONTROL-2 BOARD, PD0652A UD01 23787466 WOW BOARD, PD0645A (36HFX72) UD01 23787893 SRS-3D BOARD, PD0644B (36HF72) PICTURE TUBE * V901 23312929 PICTURE TUBE, ITC36VPF LH0.22, A90AJZ90X30 TUNER * H001 23321411 TUNER, TIM 181CH IIC PH SHINSEN, EL967LW * HY01...

  • Page 35: Pc Boards Bottom View

    SIGNAL BOARD PD0650 BOTTOM (FOIL) SIDE – 33 – – 34 –...
  • Page 36 POWER/DEF BOARD PD0159 BOTTOM (FOIL) SIDE – 35 – – 36 –...
  • Page 37 CRT-D/VM BOARD PD0164 BOTTOM (FOIL) SIDE – 37 –...
  • Page 38 AC IN BOARD PD0161 BOTTOM (FOIL) SIDE LOW B BOARD PB9567 BOTTOM (FOIL) SIDE – 38 –...
  • Page 39 CONTROL-1 BOARD PD0651 BOTTOM (FOIL) SIDE – 39 –...
  • Page 40 CONTROL-2 BOARD PD0652 BOTTOM (FOIL) SIDE – 40 –...
  • Page 41 WOW BOARD PD0645 BOTTOM (FOIL) SIDE – 41 –...

  • Page 42: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 (old) 2SD1763A 2SC5243 2SC1569 2SC4544 2SA1788 2SA1306 2SA1186A 2SD1554 RN2203 RN2201 2SD2253 RN2004 2SD1556 RN1203 2SC5143 RN1204 2SC5570 RN2204 2SD2553 RN1205 RN1202 RN1201 2SC752GTM 2SC752 2SA562TM 2SC2482 2SA1015 2SC2655 2SC4721P 2SC1815 2SC2878 2SC1740S 2SC2120 2SA9335 ON4409 –...

  • Page 43: Schematic Diagram

    SCHEMATIC DIAGRAM MODEL : 36HFX72 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.
  • Page 44 – 44 –...

  • Page 45: Specifications

    SPECIFICATIONS(Represenlative: 36HFX72) TELEVISION SYSTEM CHANNEL COVERAGE POWER SOURCE POWER CONSUMPTION AUDIO POWER SPEAKER TYPE VIDEO/AUDIO TERMINALS DIMENSIONS MASS SUPPLIED ACCESORIES * Please refer to owner's manual in detail. NTSC standard VHF: 2 through 13 UHF: 14 through 69 Cable TV: mid band (A-8 through A-1, A through I) super band (J through W) hyper band (AA through ZZ, AAA, BBB) ultra band (65 through 94, 100 through 125)

  • Page 46: Circuit Block Diagram

    TOSHIBA CORPORATION 1-1, SHIBAURA 1- CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...
  • Page 47 SCHEMATIC DIAGRAM MODEL : 36HFX72 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.
  • Page 48 – 44 –...

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