Toshiba 13A21 Service Manual
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Toshiba 13A21 Service Manual

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TOSHIBA
FILE NO. 053-200110
SUPPLEMENT

SERVICE MANUAL

COLOR TELEVISION
13A21
42HM66
DOCUMENT CREATED IN JAPAN, Nov., 2006
DOCUMENT CREATED IN JAPAN, Mar., 2002

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Summary of Contents for Toshiba 13A21

  • Page 1: Service Manual

    TOSHIBA FILE NO. 053-200110 SUPPLEMENT SERVICE MANUAL COLOR TELEVISION 13A21 42HM66 DOCUMENT CREATED IN JAPAN, Nov., 2006 DOCUMENT CREATED IN JAPAN, Mar., 2002...

  • Page 2: Table Of Contents

    TABLE OF CONTENT Precautions and Safety Notices......................3 Specification............................4 2.1. General ..........................4 Instrument Test........................5 2.3. TV Channel Table......................9 2.4. Preset Timing Chart & Reference Timing Table.............12 DDC Contents .........................14 HDMI-HDCP test......................15 Front Panel Function Control Description ..................16 User control........................16 OSD Functions......................17 Circuit Description..........................29 Main Board ........................29 Power Supply Circuit Description ..................34...

  • Page 3: Precautions And Safety Notices

    1. Precautions and Safety Notices Prior to using this manual, please ensure that you have carefully followed all the procedures outlined in the user manual for this product. • Read all of these instructions. • Save these instructions for later use. •...

  • Page 4: Specification

    2. Specification 2.1. General 2.1.1 General Description (Quick Reference) 42 inch Real-Projection TV Specification DVR-4240 TA CA Model Name Type Color 42" (42" viewable diagonal area), Rear projection, 1280 x 720 (By Panel SmoothPicture Technology) Video/Audio HDMI * 1 (HDCP support) / RCA (L/R) * 1 Input Signal TV system antenna *1 / NTSC /ATSC / CLEAR QAM Component Video * 2 / RCA (L/R) Stereo * 2...

  • Page 5: Instrument Test

    Instrument Test 2.2.1. Luminance test. Select HDMI 1280x720 @ 60Hz input: (Contrast, Brightness =default) 2.2.1.1 White balance. a. WARM: x = 0.313 ± 0.01. y = 0.329 ± 0.01. b. MEDIUM: x = 0.289 ± 0.01. y = 0.289 ± 0.01. c.
  • Page 6 2.2.2.1.1 Connected video signal source to AV port: 2.2.2.1.1.1 In color bar (COL_SMPTE) pattern, a. The color from left side to right side should be White, Yellow, Sky Blue, Green, Magenta, Red and Blue. b. The low light 10.7 IRE in the right bottom side should be separate clear. c.
  • Page 7 2.2.2.1.4.3 In Crosshatch pattern, it should be no visible noise. 2.2.2.1.4.4 In Multi burst pattern: a. In low bandwidth pattern, there are have same dots on the edge transitions which are acceptable. b. In high bandwidth pattern, there are cannot loss any resolution and the scaling should be correct. 2.2.2.1.4.5 In Black &...
  • Page 8 2.2.2.1.5 Focus: Used TV tested pattern inspect Focus and Flare. In factory menu to enter SYSTEM then select to DLP TEST PATTERN press ENTER button by remote control. The Green Diagonal line will display on screen. The EXIT button can return to factory menu.

  • Page 9: Tv Channel Table

    2.3. TV Channel Table. Picture Carrier Frequency (MHz) Channel CABLE Number 72.00 73.25 55.25 55.25 54.00 55.25 61.25 61.25 60.00 61.25 67.25 67.25 66.00 67.25 77.25 77.25 78.00 79.25 83.25 83.25 84.00 85.25 175.25 175.25 174.00 175.25 181.25 181.25 180.00 181.25 187.25 187.25...
  • Page 10 Picture Carrier Frequency (MHz) Channel CABLE Number 663.25 355.25 354.00 355.25 669.25 361.25 360.00 361.25 675.25 367.25 366.00 367.25 681.25 373.25 372.00 373.25 687.25 379.25 378.00 379.25 693.25 385.25 384.00 385.25 699.25 391.25 390.00 391.25 705.25 397.25 396.00 397.25 711.25 403.25 402.00 403.25...
  • Page 11 Picture Carrier Frequency (MHz) Channel CABLE Number 619.25 618.00 619.25 625.25 624.00 625.25 631.25 630.00 631.25 637.25 636.00 637.25 643.25 642.00 643.25 91.25 90.00 91.25 97.25 96.00 97.25 103.25 102.00 103.25 109.25 108.00 109.25 115.25 114.00 115.25 649.25 648.00 649.25 655.25 654.00 655.25...

  • Page 12: Preset Timing Chart & Reference Timing Table

    2.4. Preset Timing Chart & Reference Timing Table RF Video Input Analog Video Input Demodulated Video Horizontal Freq. Vertical Freq. Signal Formal Freq. Channels Signal Formate (KHz) (Hz) 4:3 & 16:9 2~69 (Antenna) RF Modulate System M 55.25~801.25 Composite 15.734 59.940 1~125 (Cable) NTSC...
  • Page 13 HDMI timing: Mode No. VESA VESA VESA TEXT VESA VESA VESA VESA Mode Name 640 x 640 x 640 x 640 x 720 x 800 x 800 x 800 x 800 x 832 x Horizontal Freq. 35.156 49.727 31.469 35.000 37.861 37.500 31.469...

  • Page 14: Ddc Contents

    DDC Contents HDMI 256 bytes EDID code. (For DVR4240 TA CA (Toshiba)) EDID block0: Rev:01 EDID block1:...

  • Page 15: Hdmi-Hdcp Test

    HDMI-HDCP test 1. Create HDCP key: The “*.dat＂ files need buy from“Digital Content Protection LLC＂ (WWW.digital-cp.com) To execute this program to create “*.HEX＂. 2. Install HDCP key to TV. a. To execute GProbe 4.exe b. Select then press Commends DebugON Enter c.

  • Page 16: Front Panel Function Control Description

    3. Front Panel Function Control Description 3.1 User control The front of the display shall provide user access to basic functionality and OSD functionality. The front user controls shall follow the format shown below: 1. Menu Turn OSD Menu ON/OFF 2.

  • Page 17: Osd Functions

    Rear interface: The main interface for the display shall be on the back of the unit. The interface shall consist of jacks for tuner input, audio, video interfaces and HDMI interfaces. The rear connectors shall be located as shown below: FIG.13 3.2 OSD Functions All the OSD function settings are controlled either by the remote control or using the control keys on...
  • Page 18 Main Menu To select a sub-menu, press on the right side of the RPTV or the key on the remote control.
  • Page 19 IMAGE SETTING: Function Name Function USER → VIVID → DIMMER → GAME → SPORT Scheme Brightness Brightness adjustment Contrast Contrast adjustment Color Saturation adjustment Tint Hue adjustment Sharpness Sharpness adjustment Color Temp Color temperature adjustment (Cool, Medium, Warm) Reset Reset video settings...
  • Page 20 DISPLAY SETTING: Function Name Function Main Source Select main screen sources TV DTV AV1 AV2 S Video Color Stream HD-1 Color Stream HD-2 HDMI PIP Source Select sub screen sources See PIP/PBP/POP specification in Table 1 (PIP function list) Aspect Ratio Set display to “STANDARD”...
  • Page 21 AUDIO SETTINGS: Function Name Function Bass Bass adjustment Treble Treble adjustment Balance Balance adjustment MTS Selection NOTE: This function depends on the type of broadcast being received. Mute Select Audio OFF or ON Speaker Select internal or external speaker Reset Reset audio settings...
  • Page 22 TV/DTV SETTINGS: Function Name Function Select TV source type (ANTENNA Cable STD Cable HRC TV System Cable IRC) Auto Scan Automatically detect available TV channels Channel EDIT Add/Delete the selected TV channel Local Time Day Light...
  • Page 23 PARENTAL CONTROLS: Function Name Function Password Turn parental control OFF or ON TV PG Rating See next page MPAA Rating See next page Open V-chip function Password EDIT Change Password (see next page) TV Y: All children TV Y7: For older children TV G: General audience TV PG Rating TV PG: Parental guidance suggested...
  • Page 24 GENERAL SETTINGS: Function Name Function Transparency Set OSD transparency level Menu Position OSD horizontal/vertical position adjustment System Info Display Input source, type and signal Turn the Close Caption OFF or CC1, CC2, CC3, CC4, TEXT1, Closed Caption TEXT2, TEXT3, TEXT4 Language OSD language selection.
  • Page 25 Factory Menu Function Name Function MODEL: TV system model name in factory used. VER: TV system software version. ATSC VER: ATSC software version. SYSTEM Initial TV system/ DTV software update/ Temperature information IMAGE ADJUST TV system image/ color/ white balance adjustment. DLP function control.
  • Page 26 Factory Menu- System Function Name Function ALL MODE RECALL TV system reset to factory shipment setting. INIT EEPROM Clear EEPROM. All adjustment will be clear. RESET ADC VALUE White balance value reset. DTV UPDATA ATSC software update. DMD TEMP Around of DMD temperature information. AMBER TEMP Ambient temperature information.
  • Page 27 Factory Menu- Image adjust Function Name Function SYSTEM Not available. De-interlace Not available. FILM MODE Not available. VDSP Image quality adjustment. White balance alignment. Debug Not available.
  • Page 28 Factory Menu- DLP Function Name Function EAST WEST Image horizontal invert. NORTH SOUTH Image vertical invert. DLP POSITION Image position adjustment. OSD EDGE Not available. CONTRAST DLP contrast adjustment for cool color temperature. BRIGHTNESS DLP brightness adjustment. LAMP Lamp timer information. TLIEF AUTO Not available.

  • Page 29: Circuit Description

    4. Circuit Description Main Board 4.1.1 Power Supply (DC/DC Converter) 1. 16V, 12V, 5VC, 5VSB id from Power Board. 2. 3V3ATZ from regulator IC203 (5VSB->3.3V) 3. 2V5DDR from regulator IC206 (5VSB->2.5V) 4. 1V8CTZ from regulator IC205 (5VSB->1.8V) 5. 5VT from regulator IC207 (12V->5V) 6.
  • Page 31 4.1.3 Digital Video Format Converter The FLI8532 (IC404) is a highly integrated digital video format converter for LCD-TV application using patented de-interlacing and post processing algorithms from Faroudja Laboratories, coupled with highly flexible scaling, a wide variety of aspect ratio conversions, and other special video enhancing features to produce the highest quality image.
  • Page 32 4.1.4 Video Decoder The FLI8532 chip has a sophisticated Analog Front End with 16 reconfigurable inputs through an analog multiplexer to anti-alias filters before the Analog to Digital Converters (ADCs). These integrated features eliminate the need for any devices between the input connector and the pin of the FLI8532.
  • Page 33 4.1.5 Audio Processor The MSP3445 is single-chip multi-standard sound processor of NTSC analog TV standard. The full TV sound processing, starting with analog sound IF signal-in, down to processed analog AF-out, is performed in a single chip. This TV sound processing IC include version for processing the multi-channel television sound (MTS) signal conforming to the standard recommended by the Broadcast Television System Committee (BTSC).

  • Page 34: Power Supply Circuit Description

    4.2 Power Supply Circuit Description The power supply provides DC electrical power to all the electrical components in the rear projection television. DVR-4240 also contains Ballast that provides high voltage 380V necessary to strike the lamp when the rear projection television is powered up.

  • Page 35: Formatter Board Circuit Description

    4.3 Formatter Board Circuit Description The HD5 SmoothPicture™ Single DDP1011 component set provides a highly integrated, high performance DLP solution, which enables manufacturers to create 16:9 picture sizes, with high brightness rear projectors. When combined with external video processing circuitry, the component set provides all the necessary electronics to process video/graphics input signals, format input data for display on a DLP device, and control some of the auxiliary functions of the projector system.

  • Page 36: Function Key Board Circuit Description

    Diagonal Pixel Arrangement. Low Voltage Differential Signaling (LVDS) data interface, Double Data Rate (DDR). Pixel Architecture is SPD with DarkChip3™. 4.3.3 DAD1000 The DAD1000 (IC9021) DMD Power and Reset Driver provides the high-voltage power supplies and phased reset driver functions for a family of Digital Micro-mirror Devices (DMDs). The DAD1000 is programmable and controllable to meet all current and anticipated DMD requirements.

  • Page 37: Trouble Shooting Flow Chart

    5. Trouble Shooting Flow Chart 5.1 No Display on Screen (Screen is black, no power) LED error message. Error1: LEDG: Blinking Hi (OFF) Any FAN (1 or 2 or 3) failure or disconnected. 2 Green, 1 Orange LEDO: Blinking After the fan detects error 5 sec, the LED shows “ERROR1”...

  • Page 38: No Sound (Test Signal: 0.5Vrms Sine Waveform)

    No Sound (Test signal: 0.5Vrms sine waveform)

  • Page 39: Protection

    5.3 Protection 5.3.1 Protected flow chart. 5.3.1.1 Firmware protected. 5.3.1.2 Hardware protected (Power board).
  • Page 40 5.3.1.3 Hardware protected (Ballast board). 5.3.2 Protection functions list. Item Function Description Condition Specification Result Recovery Normal TTL low level Condition Lamp MCU (IC404) detect the DMD MCU re-ignition the lamp for 5 working BD. "LAMPLITZ" (pin P25) Remote off/on to Abnormal times, if still fail the lamp ignition, detection...
  • Page 41 Normal <=73 degree C Condition MCU power off the main power supply.(MCU MCU (IC404) read the DMD pinT26(POWERON)-->CN201 board board IC9007 temperature via pin13-->Power Board CN202 thermal Abnormal Remote off/on to I2C bus. >73 degree C pin1-->Q2005(buffer)-->Q2004/IC2 sensor condition re-start up 004(photo coupler)-->Q1006/Q1005(VCC control for Power ICs...
  • Page 42 Normal 12V output Condition <16.42V (typ) Power IC no VCC, Power supply D2005(zener diode) connect shutdown immediately. between 12V and SCR2001, if (12V-->D2005 (zener diode) Power 12V voltage over 16.42V typ. /R2018/D2006-->SCR2001-->D201 supply (16.05~16.79V) the SCR will AC off/on to re-start Abnormal 12V output 4/IC2004 (photo coupler)-->Q1006/...

  • Page 43: Service Adjustment

    6. Service adjustment Service adjustment procedure 6.1.1 Entry Factory Menu (1) Open the user menu. (2) Select GENERAL SETTING (3) Entry GENERAL SETTING then select FACTORY RESET (4) Type “2”, “0”, “0” and “5” through remote control. The FACTORY MANUAL will appear...
  • Page 44 6.1.2 Index delay adjustment (1) Before download new software or replace new module should record INDEX DELAY value. (If TV system can normally display image.) (2) Download new software or replace new module (Main board or DMD board). (3) Turn on the TV then entry FACTORY MENU to adjust INDEX DELAY value. (3-1) Index delay value refer to before record value (step1).

  • Page 45: Service Adjustment List (In Factory Mode)

    Note: Color Temperature has three set different value about color1, color2 and color3. Color1= Warm; Color2= Medium; Color3= Cool 6.1.5 White balance adjustment The white balance adjusted in factory before shipment. If technician re-download new software. The main board will need to do white balance adjustment with generator and 100% color bar pattern.

  • Page 46: Appendix A: Isp

    Appendix A: ISP. A. IC502 Cortez ISP Setting up ISP Connection for Cortez (IC502) The following is a list of procedure that guides the user how to setup serial ISP connection for Cortez: Enter OSD Select GENERAL SETTING then select to FACTORY RESET Use a remote control key in “2005”...
  • Page 47 B. IC504 X226 Setting up ISP Connection for ATSC (IC504) 1. Power off mode plug in USB Hard driver on CN3001 2. Turn on DC power then select source to DVT you can see the message Note: When IC504 is empty need copy xxx.pol file to USB Hard driver When update firmware need copy xxx.udi file to USB Hard driver USB Hard driver specification...

  • Page 48: Appendix B: Full Set Explode Drawing

    Appendix B: Full Set Explode Drawing...

  • Page 49: Appendix C: Disassembly

    Appendix C: Disassembly...

  • Page 62: Appendix D: Recommended Parts List

    3797317100-ST Service lamp module 75004304 3534011801 MANUAL PACKING ASSY DVR-4240 TA CA * 75003773 5041812700 REMOTE CONTROLLER 53KEYS DVR-4240 TA CA 75004287 3200294600 LABEL Carton (Toshiba UPC label) LABEL BARCODE - 商檢號碼 75004288 3200710500 75004291 3262004101 LABEL WARNING of lamp door 75004292 3264507501...
  • Page 63 REPLACEMENT PARTS LIST Locatio TSB PN REF# Description Locatio TSB PN REF# Description IC503 75004276 2610625042 IC FLASH 1M*8 SOIC-8P SMD IC705 75004274 2530246288 IC VIDEO AMP VSOP-8P SMD X701 75004318 0730810112 CRYSTAL 28.322MHz 30PPM 20pF SMD-49 SMD X3001 75004319 0730770112 CRYSTAL 26.1621MHz 30PPM 18pF SMD-49 SMD X402...
  • Page 64 TOSHIBA CORPORATION 1-1, SHIBAURA 1-CHOME, MINATO-KU, TOKYO 105-8001, JAPAN...

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