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FILE NO. 040-200314
SERVICE MANUAL
COLOUR TELEVISION
S7PJ Chassis
43S7DE , 43S7DT
Oct., 2003

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Summary of Contents for Toshiba 43S7DE

  • Page 1 FILE NO. 040-200314 SERVICE MANUAL COLOUR TELEVISION S7PJ Chassis 43S7DE , 43S7DT Oct., 2003...
  • 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 POSITION ............................... 9 SERVICE MODE ................................10 DESIGN MODE ................................13 ELECTRICAL ADJUSTMENT ............................14 CONVERGENCE ADJUSTMENT ..........................
  • 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 hazard- 2. The only source of X-RAY RADIATION in this TV receiver ous 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 8 o'clock CRT assembly, are “NOT”...
  • Page 5 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. Anode Cap 4. Remove CRT Assembly from CRT Mounting. 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 ADJUSTING PROCEDURE IN REPLACING CRT RGB FOCUS ADJUSTMENT 1. Call-up the adjustment mode (see page 10) User convergence center check Cutoff 2.
  • Page 7 Note: The aim of the above-described adjustment procedure Note: Keep in mind that only the BLUE electric focus is ad- for the Green lens focus is to obtain the best lens focus justed with the black cross-hatch. after 2 - 3 hours of warming up taking into account the focus drift;...
  • Page 8 LOCATION OF SCREEN AND FOCUS VR'S To remove the Speaker grille and Front panel. FOCUS VR's SCREEN VR's Front 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 ANODE LEAD figure below, and put it on new lead.
  • Page 9: Service Position

    WARNING : BEFORE SERVICING THIS CHASSIS, READ THE "X-RAY RADIATION PRECAUTION", "SAFETY PRECAU- TION" AND "PRODUCT SAFETY NOTICE" ON PAGE 3 OF THIS MANUAL. SERVICE POSITION In order to assure the performance, processed wires shall be replaced after the repair work. Work procedures are as follows: 1.
  • Page 10: Service Mode

    SERVICE MODE 1. ENTERING TO SERVICE MODE 3) While pressing the o button, 1) Press o button once on 2) Press o button again to Remote Control. keep pressing. press MENU button on TV set. Item Data or Sound Mute (Service mode display) 2.
  • 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 27) 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. Indicated color of mode now selected : Green and Red Indicated color of other modes : White...
  • Page 13: Design Mode

    DESIGN MODE 1. ENTERING TO DESIGN MODE 1) Select the Service mode. 2) While pressing CALL button on Remote 3) Press MENU button on TV. and press MENU button on TV. ITEM Press DATA Press (Design mode) (Adjustment mode) When QA02 is initialized, items “OPT0” and “OPT1” of DESIGN MODE are set to the data of the representative model of this chassis family.
  • Page 14: Electrical Adjustment

    ELECTRICAL ADJUSTMENT ITEM ADJUSTMENT PROCEDURE WIDTH 1. Receive the Philips pattern. (WID) 2. Call up the adjustment mode display, then select the item WID. 3. Press the VOLUME t or s button to get the 7 bars (Left + Right). Note : Check the horizontal picture position is correct.
  • Page 15 S7PJ: Series (Reference factory adjustment) – 15 –...
  • Page 16 – 16 –...
  • Page 17 Viewpoint of WID (adjustment of horizontal amplitude) Left side Right side Left flag end Right flag end Adjust the WID data so that the number of register flags on the left and right of Phillips pattern will come to 7 in total when added. Direction of adjustment: Facing to the east Adjusting method of IF board Item:...
  • Page 18 Adjustment items Adjusting methods Focus adjustment (Conditions) • User adjustment : Dynamic mode • To be performed after centering magnet adjustment. • Signal : Lens : R ..Internal-house Dot-Cross Pattern (PAL) G G ..Internal-house Dot-Cross Pattern (PAL) B ..Internal-house Dot-Cross Pattern (PAL) Electrical focus : R ..
  • Page 19 Adjustment items Adjusting methods Focus adjustment 3. R adjustment 1) Set to the R monochrome by lens cap. 2) Receive the image of internal-house dot-cross. 3) Adjust the R electrical focus. Adjust by focus volume of the focus block (Z410) so that the screen center will come to optimum focus.
  • Page 20: Convergence Adjustment

    CONVERGENCE ADJUSTMENT 1. PICTURE ADJUSTMENT 1-2. Service Mode The adjustment are done on two screens; 50 Hz mode (PAL) and 60 Hz mode (NTSC). To synchronize correction wave to 1-2-1. Outline each frequency, receive the suitable signal. Service mode is controlled by software of micro-processor Note: The convergence circuit is a circuit to eliminate screen QA01, and is one of function of set.
  • Page 21 2. KEY FUNCTION OF REMOTE CONTROL UNIT h key ....Red test pattern ON/OFF ? key ....Green test pattern ON/OFF key ....Blue test pattern ON/OFF b key .... Mode picture change over 6 key ....Cursor shift / data change mode change over 0 key ....
  • Page 22 3. Picture a) 50 Hz mode (PAL) ..Correcting point: Horizontal 8 x Vertical 8 (Arrow marks denote correcting point) The first picture The second picture Data display Cursor (red) Screen center (Blinking) The first picture The second picture is indicated with data on top left of the first picture, therefore, convergence cannot be adjusted by this pic- Crosshatch pattern.
  • Page 23 b) 60 Hz mode (NTSC) ..Correcting point: Horizontal 8 x Vertical 7 (Arrow marks denote correcting point) The second picture The first picture Data display Cursor (red) Screen center (Blinking) The first picture During this period, the changed data is transferred from RAM Q701 to E PROM Q711, and saved.
  • Page 24 4. ADJUSTING PICTURE DIMENSION (GREEN PICTURE) 1.50 Hz mode (PAL) Screen center 310.5 164.5 Screen center 164.5 310.5 8.5mm 8.5mm 372.5 223.5 74.5 74.5 223.5 372.5 428.5 428.5 \ mark: center 43 inches 4:3 Screen size: Horizontal 874mm, Vertical 655mm Dimension A: 74.5mm (H span), Dimension B: 36.5mm (V span) 2.
  • Page 25: Screen And Mirror Alignments

    SCREEN AND MIRROR ALIGNMENTS ASSEMBLING AND MOUNTING OF FRONT SCREEN * Please refer to MECHANICAL DISASSEMBLY page 32. CLEANING OF LENS AND MIRROR CAUTION : Do not hold the optical system parts (lens and mirror) with bare hand to avoid finger-prints on the surface of those parts.
  • Page 26: Circuit Checks

    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 anode of the picture tube. 2. Turn on the receiver. Set the BRIGHTNESS and CONTRAST to minimum (zero beam current). 3.
  • Page 27: Chapter 2 Specific Informations

    CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 43" HIGH VOLTAGE AT ZERO BEAM: 31.7 kV MAX HIGH VOLTAGE: 32.8 kV AC VOLTAGE 110~240 V Table-1 SERVICE MODE ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE: Item Adjustment Reference data Item Adjustment...
  • Page 28: Location Of Controls

    LOCATION OF CONTROLS (Representative: 43S7DE) Front Volume + – Menu T S ON-timer indicator (green) Power indicator (red) Power switch Remote sonsor Channel position ts Menu ts MENU Input source selection – MENU S-VIDEO AUDIO VIDEO L/MONO a (3) Video 3 input terminals Headphones jack (ø3.5 mm)
  • Page 29 Remote Controller CALL index, initial CALL/ Power on/Standby Number buttons (0-9) 1 or 2 digit channel selection Input source selection (A 1 / A 2 / A 3) Sound menu Picture menu Selectable sound Selectable picture Teletext buttons • v, ?, ^, r, X •...
  • Page 30: Programming Channel Memory

    PROGRAMMING CHANNEL MEMORY • First, use the ASM (Automatic Search Memory) function to preset all the active channels in your area automatically. Then, arrange the preset channels with the SEARCH, SKIP functions, MFT (Manual Fine Tuning) so that you can tune into only desired channels. •...
  • Page 31 • After presetting the channels, you may skip unnecessary position numbers so that only the channels you want to watch are selected. To preset channels (SKIP, MFT, AFT) To skip unnecessary position number MFT (Manual Fine Tuning) Select the position number to be skipped with the CH The adjustments below are not necessary under normal st buttons or Number buttons.
  • Page 32: Mechanical Disassembly

    MECHANICAL DISASSEMBLY K502 K601 16 SCREWS K501 SCREWS A401 A402 Labels SCREWS A201 SCREWS A172 A241 A203 A171 (A242) (CASTER) A101 A202 10 SCREWS A204 (K103) – 32 –...
  • Page 33: Chassis And Cabinet Replacement Parts List

    : Metal Film OMF : Oxide Metal Film : Variable Resistor : Fusible Resistor (All CD and PF capacitors are ±5%, 50V and all resistors, ±5%, 1/6W unless otherwise noted.) Models :43S7DE, 43S7DT Location Location Parts No. Description Parts No.
  • Page 34 Location Location Parts No. Description Parts No. Description C491 24666100 ELECTROLYTIC, 10V 10UF M 3A C732 24109103 CERAMIC CHIP, 50V B 0.01UF K C498 24669479 ELECTROLYTIC, 50V 4.7UF M 3A C735 24092178 CERAMIC CHIP, 25V B 0.1UF K C501 24100104 CERAMIC CHIP, 25V F 0.1UF Z C736 24100104...
  • Page 35 Location Location Parts No. Description Parts No. Description C858 24092281 CERAMIC DISC, AC250V E 4700PF C7729 24105331 CERAMIC CHIP, 50V CH 330PF J C860 24073098 ELECTROLYTIC, 450V 4.7UF M 3A C7730 24105101 CERAMIC CHIP, 50V CH 100PF J C862 24503041 PLASTIC FILM , 63V 0.1UF J C7731 24667101...
  • Page 36 Location Location Parts No. Description Parts No. Description CC71 24109102 CERAMIC CHIP, 50V B 1000PF K CI81 24109103 CERAMIC CHIP, 50V B 0.01UF K CC601 24109103 CERAMIC CHIP, 50V B 0.01UF K CI91 24109103 CERAMIC CHIP, 50V B 0.01UF K CC602 24109103 CERAMIC CHIP, 50V B 0.01UF K CL01...
  • Page 37 Location Location Parts No. Description Parts No. Description CW21 24794470 ELECTROLYTIC, 16V 47UF M R151 24011103 CHIP, METAL FILM, 1/20W 10K OHM J CW26 24212102 CERAMIC DISC, 50V B 1000PF K R152 24011103 CHIP, METAL FILM, 1/20W 10K OHM J CZ01 24203101 ELECTROLYTIC, 16V 100UF M 7L 3A...
  • Page 38 Location Location Parts No. Description Parts No. Description R409 24555220 OXIDE METAL FILM, 3W 22 OHM J R511 24011102 CHIP, METAL FILM, 1/20W 1K OHM J R410 24555220 OXIDE METAL FILM, 3W 22 OHM J R512 24011152 CHIP, METAL FILM, 1/20W 1.5K OHM J R411 24383270 OXIDE METAL FILM, 2W 27 OHM J...
  • Page 39 Location Location Parts No. Description Parts No. Description R633 24011393 CHIP, METAL FILM, 1/20W 39K OHM J R790 24011101 CHIP, METAL FILM, 1/20W 100 OHM J R634 24011393 CHIP, METAL FILM, 1/20W 39K OHM J R796 24011101 CHIP, METAL FILM, 1/20W 100 OHM J R635 24011103 CHIP, METAL FILM, 1/20W 10K OHM J...
  • Page 40 Location Location Parts No. Description Parts No. Description R965 24366471 CARBON FILM, 1/6W 470 OHM J R7846 24011472 CHIP, METAL FILM, 1/20W 4.7K OHM J R967 24366122 CARBON FILM, 1/6W 1.2K OHM J R7847 24011103 CHIP, METAL FILM, 1/20W 10K OHM J R4403 24011682 CHIP, METAL FILM, 1/20W 6.8K OHM J...
  • Page 41 Location Location Parts No. Description Parts No. Description RA44 24011222 CHIP, METAL FILM, 1/20W 2.2K OHM J RD14 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RA45 24011222 CHIP, METAL FILM, 1/20W 2.2K OHM J RD15 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RA46 24011222 CHIP, METAL FILM, 1/20W 2.2K OHM J...
  • Page 42 Location Location Parts No. Description Parts No. Description RI92 24011102 CHIP, METAL FILM, 1/20W 1K OHM J RV23 24552101 OXIDE METAL FILM, 1/2W 100 OHM J RL01 24011102 CHIP, METAL FILM, 1/20W 1K OHM J RV25 24011101 CHIP, METAL FILM, 1/20W 100 OHM J RL02 24011101 CHIP, METAL FILM, 1/20W 100 OHM J...
  • Page 43 Location Location Parts No. Description Parts No. Description RZ17 24011222 CHIP, METAL FILM, 1/20W 2.2K OHM J L702 23103828 INDUCTOR, BEAD, TEM2121M RZ18 24011153 CHIP, METAL FILM, 1/2OW 15K OHM J L711 23238562 COIL, PEAKING, TRF4109AJ RZ19 24011472 CHIP, METAL FILM, 1/20W 4.7K OHM J L712 23238562 COIL, PEAKING, TRF4109AJ...
  • Page 44 Location Location Parts No. Description Parts No. Description LC20 23103146 EMI FILTER, TEM2030AA Q304 70119059 IC, OP AMP, TA75902P(J) LC21 23103146 EMI FILTER, TEM2030AA Q330 70119551 IC, TA75902F LD01 23103825 INDUCTOR, BEAD, TEM2118M Q370 23205116 TRANSISTOR, 2SC5343UF-Y(B LD02 23103825 INDUCTOR, BEAD, TEM2118M Q371 23205112 TRANSISTOR, 2SA1980UF-Y(...
  • Page 45 Location Location Parts No. Description Parts No. Description Q762 23009463 IC, CMOS QUAD BILATERAL SWITCH, QI06 23205005 TRANSISTOR, KTA2014Y TC74HC4066AFT(EL) QI07 23205140 TRANSISTOR, DTC114EUAT106 Q770 23205112 TRANSISTOR, 2SA1980UF-Y( QI08 23205140 TRANSISTOR, DTC114EUAT106 Q771 23318824 IC, TC7S08F QI09 23205140 TRANSISTOR, DTC114EUAT106 Q798 23314993 TRANSISTOR, 2SC4081 Q...
  • Page 46 Location Location Parts No. Description Parts No. Description QZ75 23205005 TRANSISTOR, KTA2014Y D864 23118633 DIODE, ZENER, RD3.0ES B2 D101 23118606 DIODE, ZENER, RD33ESA B4 D865 23118633 DIODE, ZENER, RD3.0ES B2 D201 23316231 DIODE, 1SS355 D867 23118623 DIODE, ZENER, RD10ES B1 D240 23316231 DIODE, 1SS355...
  • Page 47 CONNECTOR, PLUG, 2P 11.88MM W VT-JST GJ707 24000445 CHIP JUMPER, 1608TYPE P801 23372208 POWER CORD, UK-HK-PSB 10A 250V, GJ708 24000445 CHIP JUMPER, 1608TYPE MP5004A PSB (43S7DE) GJ712 24000445 CHIP JUMPER, 1608TYPE * P801 23372199 POWER CORD, THAI (43S7DT) GJ713 24000445 CHIP JUMPER, 1608TYPE...
  • Page 48 PICTURE TUBE SA03 23145226 SWITCH, 1C1P, PUSH SA04 23145226 SWITCH, 1C1P, PUSH * V901R 23072454 COUPLING 43R 43S7DE, COUP BLK 43R SA06 23145226 SWITCH, 1C1P, PUSH * V902G 23072455 COUPLING 43G 43S7DE, COUP BLK 43G SA07 23145226 SWITCH, 1C1P, PUSH...
  • Page 49: Pc Boards Bottom View

    SIGNAL/CONV BOARD PD1490 BOTTOM (FOIL) SIDE – 49 – – 50 –...
  • Page 50 POWER/DEF BOARD PD1489 BOTTOM (FOIL) SIDE – 51 – – 52 –...
  • Page 51 IF/MTS BOARD PD1492 BOTTOM (FOIL) SIDE VCD BOARD PD1493 BOTTOM (FOIL) SIDE – 53 –...
  • Page 52 CRTD/R BOARD PD1494-1 BOTTOM (FOIL) SIDE CRTD/G BOARD PD1494-2 BOTTOM (FOIL) SIDE – 54 –...
  • Page 53 CRTD/B BOARD PD1494-3 BOTTOM (FOIL) SIDE SVM BOARD PD1494-4 BOTTOM (FOIL) SIDE FRONT/AV BOARD PD1495-1 FRONT/CONT BOARD PD1495-2 BOTTOM (FOIL) SIDE BOTTOM (FOIL) SIDE – 55 –...
  • Page 54: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS 2SD2253 2SC3852 2SC752GTM 2SC752 2SA1788 (old) 2SD1763A 2SC2482 2SA562TM 2SC5243 2SC1569 2SA1015 2SC2655 2SC4544 2SC1815 2SC4721P 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 RN2203 2SD1554 ON4409 RN2201 2SD2253 RN2004 2SD1556 2SC5143 RN1203 RN1204 2SD2553 2SC5144 RN2204 RN1205 RN1202 RN1201...
  • Page 55 THIS PAGE IS INTENTIONALLY LEFT BLANK. – 57 –...
  • Page 56 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT 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 57 – 59 –...
  • Page 58 – 60 –...
  • Page 59: Circuit Block Diagram

    SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (1/17) 43S7DE/43S7DT SIGNAL - other [SHEET-1/10]...
  • Page 60 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (2/17) 43S7DE/43S7DT SIGNAL - IF [SHEET-2/10]...
  • Page 61 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (3/17) 43S7DE/43S7DT SIGNAL - SOUND [SHEET-3/10]...
  • Page 62 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (4/17) 43S7DE/43S7DT SIGNAL - AV [SHEET-4/10]...
  • Page 63 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (5/17) 43S7DE/43S7DT SIGNAL - Q501 [SHEET-5/10]...
  • Page 64 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (6/17) 43S7DE/43S7DT DIGITAL CONVER [SHEET-6/10]...
  • Page 65 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (7/17) 43S7DE/43S7DT CONVERGENCE OUT [SHEET-7/10]...
  • Page 66 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (8/17) 43S7DE/43S7DT SIGNAL - regu [SHEET-8/10]...
  • Page 67 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (9/17) 43S7DE/43S7DT SIGNAL - 3D-YCS [SHEET-9/10]...
  • Page 68 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (10/17) 43S7DE/43S7DT SIGNAL - MAICON [SHEET-10/10]...
  • Page 69 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (11/17) 43S7DE/43S7DT POWER/DEF - POWER [SHEET-1/2]...
  • Page 70 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (12/17) 43S7DE/43S7DT POWER/DEF - DEF [SHEET-2/2]...
  • Page 71 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (13/17) 43S7DE/43S7DT VCD - VCD-1 [SHEET-1/2]...
  • Page 72 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (14/17) 43S7DE/43S7DT VCD - VCD-2 [SHEET-2/2]...
  • Page 73 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (15/17) 43S7DE/43S7DT CRTD_SVM...
  • Page 74 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (16/17) 43S7DE/43S7DT FRONT...
  • Page 75 SCHEMATIC DIAGRAM MODEL : 43S7DE / 43S7DT (17/17) 43S7DE/43S7DT IF MTS...
  • Page 76: Specifications

    SPECIFICATIONS Representative (43S7DE) MODEL Rated voltage g 110 – 240 V Power consumption 160 W (at g g g g g 220 V, 50 Hz) 0.9 watts at standby 0 watt at f7 switch off Dimensions 944 mm × 510 mm × 1,287 mm (Width ×...
  • Page 77 TOSHIBA CORPORATION...

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