Toshiba 42HM66 - 42" Rear Projection TV Page 55 Service Manual Download | Manualshive

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Summary of Contents for 42HM66 - 42" Rear Projection TV

Page 1: ...TOSHIBA FILE NO 053 200110 SUPPLEMENT SERVICE MANUAL COLOR TELEVISION 13A21 DOCUMENT CREATED IN JAPAN Mar 2002 ...

Page 2: ...tter Board Circuit Description 35 4 4 Function Key Board Circuit Description 36 4 5 LED Board Circuit Description 36 4 6 IR Board Circuit Description 36 4 7 SmoothPictureTM Board Circuit Description 36 5 Trouble Shooting Flow Chart 37 5 1 No Display on Screen Screen is black no power 37 LED error message 37 5 2 No Sound Test signal 0 5Vrms sine waveform 38 5 3 Protection 39 6 Service adjustment 43...

Page 3: ...nd to protect the display from overheating Do not block ventilation slots and openings with objects or install the display in a place where ventilation may be hindered Do not install this display near a motor or transformer where strong magnetism is generated Images on the display will become distorted and the color irregular Do not allow metal pieces or objects of any kind fall into the display f...

Page 4: ...2VAC USA Temperature Note A Operating 10 to 40 C Hum 90 Storage 20 to 60 o C Hum 35 Humidity Relative Note A Operating 20 to 90 non condensing Ta 35 Storage 10 to 90 non condensing Note A Wet bulb temperature should be 39 o C Max Ta 40o C Note A The temperature and relative humidity range is shown in right side Altitude Operating 0 to 3 000 m Storage 0 to 12 000m Dimensions Physical 996mm W x 721 ...

Page 5: ...e have 2 bright scale saturation is acceptable When Contrast 100 and with 32grays need 4 level saturation In video mode Color Stream HD Composite S Video TV DVI HDTV mode When Contrast 100 and with 32grays need 4 level saturation 2 2 1 4 White uniformity 9 point max 9 point min Meter normal to Screen a Specification Δx and Δy should be less than ΔWx 0 016 ΔWy 0 020 2 2 2 Picture performance test 2...

Page 6: ...bandwidth pattern can not loss any resolution and the scaling should be correct c There is no visible noise in this pattern 2 2 2 1 2 4 In Black White there is no any trouble at edge transition 2 2 2 1 2 5 In Gray Scale pattern the gray scale should not be saturation 2 2 2 1 3 Connected video signal source to Color Stream HD YPbPr port 2 2 2 1 3 1 In color bar COL_SMPTE pattern a The color from le...

Page 7: ...o CC1 CC2 CC3 CC4 TT1 TT2 TT3 TT4 a 2 Setting the FLUKE 54200 or VG848 858 function to CC number 1 CC number 2 CC number 3 CC number 4 CC number 5 CC number 6 CC number 7 CC number 8 the function should be normally Or a 3 Used signal center channel with CC function TV select to same CC number with signal center b Parental Control b 1 Select the Parental Control in OSD and key in password 2097 ente...

Page 8: ... 4 DDC test 4 1 DDC EDID specification compliance requirement The data that is communicated shall be stored in the monitor in non volatile which is a subset of the VESA EDID version 3 0 standard 4 2 The EDID data see DDC contents 5 Audio test 5 1 Connected AV1 AV2 AV S Video audio input source to AV L R audio input the speaker L and R should be output and the distortion THD 10 at 20Hz to 20KHz and...

Page 9: ... 150 00 151 25 20 507 25 157 25 156 00 157 25 21 513 25 163 25 162 00 163 25 22 519 25 169 25 168 00 169 25 23 525 25 217 25 216 00 217 25 24 531 25 223 25 222 00 223 25 25 537 25 229 25 228 00 229 25 26 543 25 235 25 234 00 235 25 27 549 25 241 25 240 00 241 25 28 555 25 247 25 246 00 247 25 29 561 25 253 25 252 00 253 25 30 567 25 259 25 258 00 259 25 31 573 25 265 25 264 00 265 25 32 579 25 271...

Page 10: ...45 25 444 00 445 25 62 759 25 451 25 450 00 451 25 63 765 25 457 25 456 00 457 25 64 771 25 463 25 462 00 463 25 65 777 25 469 25 468 00 469 25 66 783 25 475 25 474 00 475 25 67 789 25 481 25 480 00 481 25 68 795 25 487 25 486 00 487 25 69 801 25 493 25 492 00 493 25 70 499 25 498 00 499 25 71 505 25 504 00 505 25 72 511 25 510 00 511 25 73 517 25 516 00 517 25 74 523 25 522 00 523 25 75 529 25 52...

Page 11: ...25 103 667 25 666 00 667 25 104 673 25 672 00 673 25 105 679 25 678 00 679 25 106 685 25 684 00 685 25 107 691 25 690 00 691 25 108 697 25 696 00 697 25 109 703 25 702 00 703 25 110 709 25 708 00 709 25 111 715 25 714 00 715 25 112 721 25 720 00 721 25 113 727 25 726 00 727 25 114 733 25 732 00 733 25 115 739 25 738 00 739 25 116 745 25 744 00 745 25 117 751 25 750 00 751 25 118 757 25 756 00 757 ...

Page 12: ...orizontal Freq KHz Vertical Freq Hz Active Resolution Total Pixel clock MHz 4 3 16 9 Composite YC YcbCr NTSC 15 734 59 940 720 240 59 94 I 858 525 13 500 Color Stream HD Video Input Format V scan line H pixel Aspect ratio Scan format Frame fps HDTV 1080i 1080 1920 16 9 Interlaced scan 30 720p 720 1280 16 9 Progressive scan 60 EDTV 480p 480 704 16 9 Progressive scan 60 480p 480 704 4 3 Progressive ...

Page 13: ... 667 V sync Lines 2 3 3 3 2 2 4 6 3 3 V back porch Lines 33 39 28 16 35 22 23 23 21 37 V active Lines 480 480 480 480 400 600 600 600 600 624 V front porch Lines 10 3 9 1 12 1 1 37 1 3 Mode No 11 12 13 14 15 16 17 18 19 20 Mode Name VESA 848 x 480 VESA 1024 x 768 VESA 1024 x 768 VESA 1024 x 768 VESA 1280 x 720 480p Video 720p Video 1080i Video Horizontal Freq KHz 29 830 48 363 56 476 60 023 44 772...

Page 14: ...20 20 20 20 90 00 00 00 FD 00 32 4B 1E 50 0E 100 00 0A 20 20 20 20 20 20 00 00 110 00 FC 00 34 32 48 4D 36 36 0A 120 20 20 20 20 20 20 01 62 EDID block1 0 1 2 3 4 5 6 7 8 9 0 02 03 1A 71 47 84 05 02 03 01 10 06 07 23 09 07 07 83 01 00 00 20 65 03 0C 00 10 00 01 1D 00 72 30 51 D0 1E 20 6E 28 55 00 A2 08 40 32 00 00 1E 01 1D 80 18 71 1C 50 16 20 58 2C 25 00 A2 08 32 00 60 00 9E 8C 0A D0 8A 20 E0 2D ...

Page 15: ...CP key to TV a To execute GProbe 4 exe b Select Commends to DebugON then press Enter c Select Commands to SetBuffer address 0X600 length 300 then press Enter d Select Commands to NVRAMWrite then input the file of factoryxxx hex HDCP keys from address 0 e Set Commands to NVRAMRead address 0 length 300 3 With VG848 or VG858 HDCP program to check the TV set HDCP function ...

Page 16: ... while in the OSD Menu 3 Volume Increase Decrease sound volume or adjust a highlighted control while in the OSD Menu 4 Input Select Active Video Input or choose a selection while in the OSD MENU 5 Power Button Power ON OFF 6 IR Lens IR Receiver 7 LED Lens Power LED LAMP LED indicator Side view of RPTV A front panel A V interface panel shall be located on a tilt out door on the left side of the dis...

Page 17: ...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 the right side of RPTV To display the OSD main menu press the Menu button on the right side of the RPTV or on the remote control Use arrow keys to highlight the desired OSD sub menu ...

Page 18: ...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: ...ER VIVID DIMMER GAME SPORT 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: ... PIP PBP POP Swap Swap main screen and sub screen source PIP Size Sub screen display size adjustment Small Medium Large PIP Position Sub screen display horizontal vertical position adjustment Audio From Select main screen or sub screen audio sources Table 1 PIP function list SUB Main TV AV1 AV2 S Video Color Stream HD 1 Color Stream HD 2 HDMI TV X X X X X X O AV1 X X X X X X O AV2 X X X X X X O S ...

Page 21: ...ss adjustment Treble Treble adjustment Balance Balance adjustment MTS 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: ...GS Function Name Function TV System Select TV source type ANTENNA Cable STD Cable HRC Cable IRC Auto Scan Automatically detect available TV channels Channel EDIT Add Delete the selected TV channel Local Time Day Light ...

Page 23: ...e next page TV PG Rating TV Y All children TV Y7 For older children TV G General audience TV PG Parental guidance suggested TV 14 Parents strongly cautioned TV MA Mature audience only MPAA Rating NONE Not available G General audience PG Parental guidance suggested PG 13 Parents strongly cautioned R Restricted NC 17 No one 17 and under admitted X Adult audience only Password Edit Change Password ...

Page 24: ...ut source type and signal Closed Caption Turn the Close Caption OFF or CC1 CC2 CC3 CC4 TEXT1 TEXT2 TEXT3 TEXT4 Language OSD language selection Sleep Timer Set sleep timer to turn off the power automatically Menu Timeout Set the time to turn off the OSD automatically Quick Restart Low Power Shutdown LPS mode selection Factory Reset Restore factory default settings ...

Page 25: ...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 DLP function control ...

Page 26: ...ry 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 DLP TEST PATTERN DLP test pattern for factory used ...

Page 27: ...27 Factory Menu Image adjust Function Name Function SYSTEM Not available De interlace Not available FILM MODE Not available VDSP Image quality adjustment ADC White balance alignment Debug Not available ...

Page 28: ...TNESS DLP brightness adjustment LAMP Lamp timer information TLIEF AUTO Not available INDEX DELAY Color wheel index delay adjustment GAMMA Gamma curve selection SMOOTH PIC SmoothPictureTM on off control SATURATION Dynamic color function to adjust saturation SHARP PICTURE Dynamic color function to adjust sharp picture LAMP SYNC DELAY Lamp sync delay adjustment DYNAMIC CONTRAST Dynamic color function...

Page 29: ...lution for LCD TV It includes an integrated 3 D Digital Video Decoder with Faroudja DCDi Cinema video format conversion video enhancement and noise reduction The level of video quality that could previously only be seen on an exclusive Faroudja Home Theater System is now available in a single chip solution The auto detection and Faroudja DCDi Cinema technology allow the FLI8532 to detect process a...

Page 30: ...30 ...

Page 31: ...b Outputs Output resolutions include 480p 720p 1080i 1080p Interlaced or Progressive output In the FLI8532 digital output of 24 bit RGB YCrCb YPrPb 4 4 4 or 16 20 bit Y Cr Cb 4 2 2 are available Output pixel rate up to 135 MHz maximum Formats Input color manipulation matrix supports all color spaces RGB YPrPb 4 4 4 YCrCb 4 2 2 YCr Cb ITU R BT656 ITU R BT601 Output supports digital RGB YPrPb 4 4 4 ...

Page 32: ...ides the capability to capture 16 analog video inputs which can be a combination of Composite CVBS S Video SY SC YPrPb Y Pr Pb or RGB R G B The FLI8532 front end provides filtering capability depending on the type of input video signal in use The use of these filters eliminates the need to have any external filter components The filters included are both in the analog as well as digital domain The...

Page 33: ... Broadcast Television System Committee BTSC Current IC have to perform adjustment procedures in order to achieve good stereo separation for BTSC The MSP3445 has optimum stereo performance without any adjustment The MSP3445 has built in automatic function The IC is able to detect the actual sound standard automatically Automatic Standard Detection Furthermore pilot levels and identification signals...

Page 34: ...the AC input line current waveform to correspond to that of the AC input line voltage and boost input rectified voltage to 380Vdc for prerequisite The output voltage 5Vsb and 5VC are converted from Standby power when the system is going to the standby mode 5Vsb is the only output voltage After the Power_ON CN2002 Pin1 is high then other voltage outputs are starting up otherwise there is only 5Vsb ...

Page 35: ...nce design also includes analog circuitry for color wheel motor drive SmoothPicture actuator Control and DMD drive voltage generation Proper layout of the high speed digital and analog circuits is critical to insure a working design 4 3 1 DDP1011 The DDP1011 IC9016 is an Application Specific Integrated Circuit ASIC intended for use in DLPTM Digital Light Processing Technology from Texas Instrument...

Page 36: ...ements The DAD1000 switches outputs between VBIAS VRESET and VOFFSET voltage levels to form DMD reset waveforms VBIAS may be supplied directly to the DMD to bias the border mirrors to the off state VOFFSET is also supplied directly to the DMD as DMDVCC2 A fourth DMD power supply DMDVCC is supplied directly to the DMD by other circuitry 4 3 4 CYCLONE SmoothPicture is a technique for storing and dis...

Page 37: ... FAN 1 or 2 or 3 failure or disconnected After the fan detects error 5 sec the LED shows ERROR1 message Error2 3 Green 2 Orange LEDG Blinking LEDO Blinking Blinking 0 5sec Lamp ignition failure Lamp shut off unexpectedly The system will shout down main power go to standby mode Error3 5 Green 2 Orange LEDG Blinking LEDO Blinking Hi OFF DLP hardware error 1 Error 1 ...

Page 38: ...38 5 2 No Sound Test signal 0 5Vrms sine waveform ...

Page 39: ...39 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: ...tion stop the TV power up show failure status by LED Remote off on to re start up and re ignition Normal Condition TTL low level 2 Fan rotate detection MCU IC404 detect the pin1 voltage of CN5001 CN5002 and CN5003 Abnormal condition TTL high level MCU turn off the lamp by set the Rubycon ballast CN02 PIN4 and PIN5 to high 1 MCU pinP26 LAMPSYNCEN CN404 pin28 DMD BD CN9002 pin28 Q9004 Q9003 buffer B...

Page 41: ...mote off on to re start up Normal Condition Door close micro switch is on 5 Micro switch for lamp door open detection IC2004 connect to micro switch and supply the VCC to power IC if micro switch is open the VCC of power IC is off thus the main power supply cans not work Abnormal condition Door open micro switch is off Power IC no VCC Power supply shutdown immediately Micro SW IC2004 photo coupler...

Page 42: ...e function the current sense function are for error amplifier feedback loop and short circuit protection function Abnormal condition Any transformer secondary components are failure winding diode capacitor Power supply into to protection state Power IC detect the current sense voltage at each re start up cycle and will auto recovery immediately after the short circuit condition remove AC off remov...

Page 43: ...6 1 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: ...to adjust DLP position 4 The TV image should on the screen center and full screen Refer to section 2 2 2 1 5 Distortion test 5 If technician cannot get the related value before replace new board then new main board is programmed with factory average value Technician just to check image on the screen and full screen 6 1 4 Color temperature The color temperature is programmed in software This sectio...

Page 45: ...lorStream HD a Select COLOR STREAM 1 b Input 720p mode then do the ADC calibration by auto alignment at NTSC color bar 100 pattern c Check black pattern 0 IRE the luminance should be under 1 cd m2 d COLOR STREAM 2 doesn t need to do ADC calibration The value is same as COLOR STREAM 1 6 1 5 2 ADC for Composite signal a Select AV1 and input 480i mode NTSC color bar 100 pattern then to do ADC calibra...

Page 46: ...SP are described as follows Serial Connection Protocol Serial1 Port COM1 Speed 115200 Press OK after configuration setting is done 4 On the command window at the bottom of the GProbe screen execute the batch file called DVR42_8Bit txt The location of this file is under DVR42 ISP batch directory therefore the user can type the following line in the command window batch c DVR42 ISP batch DVR42_8Bit ...

Page 47: ...ode plug in USB Hard driver on CN3001 2 Turn on DC power then select source to DVT you can see the message Note a When IC504 is empty need copy xxx pol file to USB Hard driver b When update firmware need copy xxx udi file to USB Hard driver c USB Hard driver specification ...

Page 48: ...48 Appendix B Full Set Explode Drawing ...

Page 49: ...49 Appendix C Disassembly ...

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Page 62: ...534011801 MANUAL PACKING ASSY DVR 4240 TA CA A3 75003773 5041812700 REMOTE CONTROLLER 53KEYS DVR 4240 TA CA L1 75004287 3200294600 LABEL Carton Toshiba UPC label L2 75004288 3200710500 LABEL BARCODE 商檢號碼 L3 75004291 3262004101 LABEL WARNING of lamp door L4 75004292 3264507501 LABEL for rear I O L5 75004290 3262003600 LABEL WARNING inside base P1 75004293 3422104400 HANDLE PP 116 90 3 18 1 5 NAT P2...

Page 63: ...04271 251039702B IC PWM DC TO DC SO 8P SMD IC2004 75004259 2310104312 PHOTO TR 50mA 70V DIP 4P 100 200 10 16m Q2006 75004325 242601105831 FET 30V 10A 13 5mohm LL SOIC 8P SMD AD EE30 75004305 3791013700 SPEAKER L DVR 4240 TA CA EE31 75004306 3791013800 SPEAKER R DVR 4240 TA CA EE32 75004327 0910500011 TH1001 EE33 75004282 2805520601 FL1001 EE34 75004283 2805786801 FL1002 EE35 75004285 2809550500 FL...

Page 64: ...TOSHIBA CORPORATION 1 1 SHIBAURA 1 CHOME MINATO KU TOKYO 105 8001 JAPAN ...

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