Toshiba 14SV2M Service Manual
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Toshiba 14SV2M Service Manual

Toshiba 14SV2M Service Manual

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FILE NO. 060-200411
SERVICE MANUAL
Color Television
S3E Chassis
14SV2M
Mar. 2004 (YC/X)

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Summary of Contents for Toshiba 14SV2M

  • Page 1 FILE NO. 060-200411 SERVICE MANUAL Color Television S3E Chassis 14SV2M Mar. 2004 (YC/X)

  • Page 2: Table Of Contents

    TABLE OF CONTENTS CHAPTER 1 GENERAL ADJUSTMENTS SAFETY INSTRUCTIONS ............................3 SET-UP ADJUSTMENT ............................4 SERVICE MODE ..............................6 DESIGN MODE ................................ 9 ELECTRICAL ADJUSTMENTS ..........................10 CIRCUIT CHECK ..............................12 CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA ..........................13 LOCATION OF CONTROLS ...........................

  • 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: 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. SET-UP ADJUSTMENT I 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 5 I CIRCUMFERENCE CONVERGENCE ADJUSTMENT CONVERGENCE ADJUSTMENTS NOTE: Before attempting any convergence adjustments, the 1. Loosen the clamping screw of deflection yoke slightly to receiver should be operated for at least fifteen min- allow the yoke to tilt. utes. 2. Temporarily put a wedge as shown in figure 1. (Do not remove cover paper on adhesive part of the wedge.) I CENTER CONVERGENCE ADJUSTMENT 3.

  • Page 6: Service Mode

    SERVICE MODE 1. ENTERING TO SERVICE MODE 1) Press o button once on 2) Press o button again to 3) While pressing the o button, Remote Control. keep pressing. press MENU button on TV set. Item Data (Service mode display) 2.
  • Page 7 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 13) 5.
  • Page 8 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 9: Design Mode

    DESIGN MODE 1. ENTERING TO DESIGN MODE 3) Press MENU button on TV. 1) Select the Service mode. 2) While pressing o (or CALL) button on Remote and press MENU button on TV. ITEM Press DATA Press (Design mode) (Adjustment mode) When QA02 is initialized, items “OPT0”...

  • Page 10: Electrical Adjustments

    ELECTRICAL ADJUSTMENTS ITEM ADJUSTMENT PROCEDURE 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 11 ITEM ADJUSTMENT PROCEDURE WHITE BALANCE 1. Set Contrast to 40, and brightness to +20 by picture control. ADJUSTMENT 2. Set the TV in service mode, and get the inside W/B adjusting signal with VIDEO button. • CUTOFF ADJUSTMENT 3. Select RCUT, GCUT and BCUT with CHANNEL s, t buttons, to set individual (RCUT) values to Initial reference data, and to set GDRV and BDRV to Initial reference (GCUT)

  • Page 12: Circuit Check

    CIRCUIT CHECK 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 anode of the picture tube. 2. Turn on the receiver. Set the BRIGHTNESS and CONTRAST controls to minimum (zero beam current). 3.

  • Page 13: Chapter 2 Specific Informations

    CHAPTER 2 SPECIFIC INFORMATIONS SETTING & ADJUSTING DATA SAFETY INSTRUCTIONS 14" HIGH VOLTAGE AT ZERO BEAM: 23.5 kV MAX HIGH VOLTAGE: 25.0 kV AC VOLTAGE 110~240 V Table-1 SERVICE MODE ADJUSTING ITEMS AND DATAS IN THE SERVICE MODE: Item Adjustment Reference data Data ←...

  • Page 14: Location Of Controls

    LOCATION OF CONTROLS (Representative: 21S1MJ) Front Remote Names of Parts TV Set Remote Controller Power on/standby Main power on/off Direct select Infrared CHs/t Channel up/down, sensor Item select Power ; -/+ Volume up/down, indicator Menu select, Level adjust d MENU Menu open -/-- Digit select Channel up...

  • Page 15: Channel Preset

    CHANNEL PRESET Use this function when: 2 Press MENU and ; –/+ to call up the • You cannot find the channel you want “TUNING” menu D8 . Press CH s/t and using “Selecting the channel” on page 9. select “SEARCH”. Press ; –/+ to •...
  • Page 16 Note: • When “SKIP” is ON, the Position number is prefixed by “*”. Example: *13. To confirm this, select Position 13 using the -/-- and 0~9 buttons. • If you want to restore a skipped position number, select it using the -/-- and 0~9 buttons then switch the “SKIP”...

  • Page 17: Chassis And Cabinet 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. Model : 14SV2M Capacitors ..... CD : Ceramic Disk PF : Plastic Film EL : Electrolytic Resistors ....
  • Page 18 Location Parts No. Description Location Parts No. Description C806 24092281 CERAMIC DISC, AC250V E 4700PF R136 24011513 CHIP, METAL FILM, 1/20W 51K OHM J C810 24086059 ELECTROLYTIC, 400V 270UF M 3D R139 24011332 CHIP, METAL FILM, 1/20W 3.3K OHM J C813 24092555 CERAMIC DISC, AC250V E 1000PF M R140...
  • Page 19 Location Parts No. Description Location Parts No. Description R664 24366339 CARBON FILM, 1/6W 3.3 OHM J RA76 24011472 CHIP, METAL FILM, 1/20W 4.7K OHM J R665 24011224 CHIP, METAL FILM, 1/20W 220K OHM J RA77 24011472 CHIP, METAL FILM, 1/20W 4.7K OHM J R801 24009954 METAL FILN, 1/2W 2.2M OHM J RA89...
  • Page 20 D804 23316796 DIODE, VRRM=600V IF=1A DO-41 ERB12-06E CABINET PARTS D818 23357295 DIODE, ZENER, DZ13 BS C A264 23445803 KNOB, CONTROL KEY 14SV2M D840 23357267 DIODE, DZ5.6 BS B A265 23445804 KNOB, POWER BUTTON 14SV2M D861 23357300 DIODE, ZV=15.33-15.96 DZ16 BS B...
  • Page 21 Location Parts No. Description Location Parts No. Description A702B 23946415 PACKING, BOTTOM A704 23945049 LAMIFILM BAG, 1460TE AT03 23588765 REMOCON PART, BATTERY COVER, CT-90119 E912 23848729 WEDGE, YOKE HOLDING, 3 REQUIRED – 21 –...
  • Page 22 THIS PAGE IS INTENTIONALLY LEFT BLANK. – 22 –...

  • Page 23: Pc Boards Bottom View

    MAIN BOARD PD1690A-1 (U902A) BOTTOM (FOIL) SIDE – 24 – – 23 –...

  • Page 24: Terminal View Of Transistors

    TERMINAL VIEW OF TRANSISTORS CRT-D BOARD PD1690A-2 (U902B) BOTTOM (FOIL) SIDE 2SD2253 2SC3852 2SC752 2SA1788 2SC752GTM (old) 2SD1763A 2SA562TM 2SC2482 2SC5243 2SC1569 2SA1015 2SC2655 2SC4544 2SC1815 2SC4721P 2SA1788 2SC2878 2SA1306 2SC1740S 2SA1186A 2SC2120 2SA9335 RN2203 2SD1554 ON4409 RN2201 2SD2253 RN2004 2SD1556 RN1203 2SC5143...
  • Page 25 SCHEMATIC DIAGRAM MODEL : 14SV2M 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 26 – 28 –...

  • Page 27: Specifications

    SPECIFICATIONS MODEL 14SV2M Rated voltage ~ 110 - 240V, 50/60Hz Power consumption (at ~ 220V 50Hz) Dimensions 478.0(W) X 375.0(D) X 362.0(H) mm (Width x Depth x Height) Mass 10.1kg Picture Tube Type 21 (372.5mm) Overall picture tube measured diagonally (335.4mm) Viewable picture tube measured diagonally...

  • Page 28: Circuit Block Diagram

    TOSHIBA CORPORATION...
  • Page 29 SCHEMATIC DIAGRAM MODEL : 14SV2M 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 30 – 28 –...
  • Page 31 14SV2M MAIN (SIGNAL) (1/2)
  • Page 39 14SV2M MAIN (SIGNAL) (1/2)
  • Page 40 14SV2M MAIN (POW/DEF) (2/2)
  • Page 48 14SV2M MAIN (POW/DEF) (2/2)

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