Toshiba 30WL46 Service Manual
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Toshiba 30WL46 Service Manual

Toshiba 30WL46 Service Manual

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TOSHIBA
30WL46
MODEL
SERVICE MANUAL

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Summary of Contents for Toshiba 30WL46

  • Page 1 TOSHIBA 30WL46 MODEL SERVICE MANUAL...
  • Page 2 L6B TFT- LCD TV SERVICE MANUAL...
  • Page 3 CONTENTS PAGES Safety instructions Technical specifications Panel Specification Back appearance of TV Interconnectıon Diagram Block diagram Block diagram of power supply Service mode Service Mode items and values Data sheet of important IC’s and parts Recommended Part List Frequency list of channels...

  • Page 4: Safety Precautions

    SAFETY PRECAUTIONS GENERAL GUIDELINES There are electro-static sensitive components such as CMOS in LCD Module. Please earth human It is advised to insert an isolation transformer in the body when handle the LCD.In addition, please do AC supply before servicing a hot chassis. not touch the interface connector pin with bare.
  • Page 5 L6B TECHNICAL SPECIFICATION Receiving System PAL B/G+I+D/K SECAM L/L' Comb Filter Adaptive 4H\2H LTI, CTI Filters DVI 1.0 Compliant DVI Receiver Resolution VGA to SXGA 2 Pixel \ Clk Support Gamma Correction 8 to 10-bit LUT PIP\PAP\POP\PAT Graphics Based 8-bit\pixel Level (1.5, 2.5, Teleweb) Teletext 1.5 Teletext...

  • Page 6: Panel Specification

    PANEL SPECIFICATION Sizes 22" 23" 26" 27" 30" 32" Samsung Samsung Chimei Manufacturer Samsung Chimei Philips Hannstar Philips LG-Philips Interface Single LVDS Single LVDS Singlel LVDS Singel LVDS Single LVDS Single LVDS Resolution WXGA (1280x720) WXGA (1280x768) WXGA (1280x768) WXGA (1280x720) WXGA (1280x768) WXGA (1280x768) Brightness (cd/m2)>=...
  • Page 7 BACK SIDE APPEARANCES CONTROL BOARD SPEAKERS POWER SWITCH 220VAC INPUT LED/IR BOARD POWER SUPPLY MAIN BOARD CHASSIS NOTE: LOCATION AND THE SHAPE OF IR /LED BAORD, CONTROL BOARD AND MAIN SWITCH BOARD MAY CHANGE ACCORDING TO THE COSMETIC OF THE TV AND SIZE...
  • Page 8 TO PANEL MAIN CHASSIS JP453 POWER JP452 JP451 SUPPLY MODULE S150 SPEAKER S550 PANEL S350 JP450 MAIN POWER TO HEADPHONE JACK SWITCH MODULE IR RECEIVER/LED KEY BOARD 220V AC MODULE MODULE INPUT...
  • Page 9 L6B BLOCK DIAGRAM Video-Main SDRAM RF In IF IC TDA9886T Tuner-Main MT48LC16M 16 Bit PW1231 Tuner-PIP IF IC TDA9886T EEPROM De-Interlacer 24C64 24 Bit RGB AV-Out Video Flash Memory AM29VL160 AV4 Video-In Video-PIP Video Switch PW181 TDA6415C Video In/Out 16 Bit IMAGE PROCESSOR Progressive...
  • Page 10 L6B POWER SUPPLY BLOCK DIAGRAM (MAIN CHASSIS) J450 F450 +2,5V_STBY U454 U458 U451 (5V) +5V_STBY LM2576 NCP1117 FDS9933A DC_IN F451 VOLTAGE S450 +3,3V_STBY DOUBLER '33V +1,5V_STBY U450 NCP117 12V_AMP U452 FDS9933N U456 U457 LM317 STAND_BY +3,3V NCP1117 U453 U455 +12V PANEL_POWER FDS9933N LM2576...

  • Page 11: Activating The Service Menu

    L6B SERVICE MENU 1. Activating the Service Menu When the menu is on the screen press ‘9’, ‘3’, ’0’, ’1’ on the remote controller. This will activate the service menu. 2. Service Menu Structure The service menu has three items: display, calibre and version 2.1 Display Display item has seven options: a- Panel...
  • Page 12 2.2 Calibre Calibre item has nine options: a- video format Video format option force the video format to the desired format. Selectable formats are Auto, Pal, NTSC and SECAM. b- colorspace Colorspace option gives the information about the video input colorspace input to PW181 IC.
  • Page 13 <ok> to reset dpms osd time out 60 sec version ITEM TYPICAL VALUES/OPTIONS Software SL630T_CH1_T13 L6B 1.22 Chi30 Project; L6B Toshiba Generated Date: October 01,2004 at 22.42...

  • Page 14: Pin Connections

    TEA6415C BUS-CONTROLLED VIDEO MATRIX SWITCH 20MHz BANDWIDTH CASCADABLE WITH ANOTHER TEA6415C (INTERNAL ADDRESS CAN BE CHANGED BY PIN 7 VOLTAGE) 8 INPUTS (CVBS, RGB, MAC, CHROMA, ...) 6 OUTPUTS POSSIBILITY OF MAC OR CHROMA SIGNAL FOR EACH INPUT BY SWITCHING-OFF THE DIP20 CLAMP WITH AN EXTERNAL RESISTOR (Plastic Package)

  • Page 15: Block Diagram

    TEA6415C BLOCK DIAGRAM P ERI P ERI LUMA CHROMA DEC. POWER CVBS (MAC/DEC) CVBS (P ERI P LUG1) CVBS (AM TUNER) MAC S IGNAL (AMTUNER) CVBS (P ERI P LUG2) CVBS (FM TUNER) MAC S IGNAL (FM TUNER) SYNCHRO (TTX/BTX) DECODER DATA P ROG...
  • Page 16 C-bus controlled single and multistandard TDA9885; TDA9886 alignment-free IF-PLL demodulators FEATURES • 5 V supply voltage • Gain controlled wide-band Vision Intermediate Frequency (VIF) amplifier, AC-coupled • Multistandard true synchronous demodulation with active carrier regeneration: very linear demodulation, • SIF-AGC for gain controlled SIF amplifier, single good intermodulation figures, reduced harmonics, and reference QSS mixer able to operate in high excellent pulse response...
  • Page 17 This text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here in _white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.This text is here inThis text is here in white to force landscape pages to be rotated correctly when browsing through the pdf in the Acrobat reader.
  • Page 18 TEA6420 BUS-CONTROLLED AUDIO MATRIX 5 STEREO INPUTS 4 STEREO OUPUTS GAIN CONTROL 0/2/4/6dB/MUTE FOR EACH OUTPUT CASCADABLE (2 different addresses) SERIAL BUS CONTROLLED VERY LOW NOISE SHRINK24 VERY LOW DISTORSION (Plastic Package) ORDER CODE : TEA6420 DESCRIPTION SO28 The TEA6420 switches 5 stereo audio inputs on (Plastic Micropackage) 4 stereo outputs.

  • Page 19: Absolute Maximum Ratings

    TEA6420 BLOCK DIAGRAM RIGHT INPUTS GAIN = 0/2/4/6dB RIGHT OUTP UTS SUPPLY BUS DECODER S CL ADDR LEF T OUTP UTS GAIN = 0/2/4/6dB LEF T INPUTS ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit Supply Voltage 10.2 Operating Ambient Temperature 0, + 70 oper Storage Temperature...

  • Page 20: Product Specification

    PW1231 Product Specification General Crystal The PW1231 is a high-quality, digital video signal processor that incorporates Pixelworks’ patented deinterlacing, scaling, and video enhancement algorithms. The PW1231 accepts industry-standard video Video Digital PW1231 Video formats and resolutions, and converts the input into any Decoder Output desired output format.The video algorithms are highly...

  • Page 22: Pinout Information

    Pinout Information Pin Diagram PVDD PVDD PVSS PVSS MPDVSS DPAVSS MPAVDD DPAVDD DPDVSS DPDVDD CGMS TESTCLK TRSTN RESETn MD15 TEST MD14 DCLK MD13 PW1231 MD12 MD11 MD10 (Top View) PVDD PVSS PVSS PVDD MCLK MCAS MRAS MCLKFB MA12 MA11 MA13 MA10 PVDD Figure 2-1 PW1231 Pin Layout...

  • Page 23: General Description

    PW181 Product Specification General Description The PW181 ImageProcessor is a highly integrated Crystal “system-on-a-chip” that interfaces computer graphics and video inputs in virtually any format to a fixed-frequency flat panel display. Video Video Decoder Input Computer and video images from NTSC/PAL to WUXGA PW181 Display at virtually any refresh rate can be resized to fit on a fixed-...
  • Page 24 A(19:0), RAMWE, D(15:0), RAMOE, BHEN, CPUTMS, PortC PortB PortA ROMWE, CS(1:0), CPUTCK, CPUTDO EXTINT RxD, TxD IRRCVR (1:0) (7:0) (7:0) (7:0) CPUTDI ROMOE RD, WR PortD(7:0) PortE(7:0) PortF(7:0) Processor ROM/ 16-bit Watchdog and Interrupt 2-Wire UART GPIO Turbo µP Serial RAM Interface Timers Controller...

  • Page 25: Part Description

    L57172 CU ASSY 27'' L6B (ZR1192-21) UR3110 L6B CHASIS 27"TOS MS/NX/3/SK/PIP/PEN/DVI US1110 L6B CHASIS TOS 30" M/NX/3/SK/PIP/PEN/DVI US1172 CU ASSY 30" L6BL38 TOSHIBA (ZR1191-20) Y23172 CU ASSY 26L6L43 L6B VER.(ZP9191-20) Y22172 CU ASSY 26L6BL44 (ZG5192-20) Y51120 L6 CHASIS DAUGHTER BOARD ZG4187F RC L6B TOSHIBA GRI/SHINE SI.P.ED CT-870...
  • Page 26 SAW828 056010 SAW FILTER OFW K9656M 010861 ON/OFF SWITCH BK98 TU825 Y51136-PH1 TUNER PH UV1316T/SIGH-3 SPL ASIMTRK YAT TU826 Y11136 TUNER HOR.PHILLIPS UV1316/A I H-4 453124 IC-CHIP NCP1117DT33RK TO-252 PACKAGE U150 453195 IC PI5V330W SOIC(W) U151 453350 IC-CHIP PCF8591 /SO16 453262 IC-CHIP AD9887KS-100- DUAL IN.FACE TRAY U250...

  • Page 27: Frequency Table (Mhz)

    FREQUENCY TABLE (MHz) Channel Number L/L' 49.75 49.75 47.75 48.25 59.25 59.25 55.75 55.25 77.25 77.25 60.50 62.25 85.25 85.25 63.75 175.25 93.25 93.25 176.00 182.25 175.25 175.25 184.00 189.25 183.25 183.25 192.00 196.25 191.25 191.25 200.00 203.25 199.25 199.25 208.00 210.25 207.25...
  • Page 28 Channel Number L/L' 663.25 663.25 663.25 663.25 671.25 671.25 671.25 671.25 679.25 679.25 679.25 679.25 687.25 687.25 687.25 687.25 695.25 695.25 695.25 695.25 703.25 703.25 703.25 703.25 711.25 711.25 711.25 711.25 719.25 719.25 719.25 719.25 727.25 727.25 727.25 727.25 735.25 735.25 735.25 735.25...
  • Page 29 Channel Number L/L' 259.25 271.25 271.25 284.75 266.25 279.25 279.25 296.75 273.25 287.25 287.25 55.75 280.25 295.25 295.25 60.50 287.25 303.25 303.25 63.75 294.25 303.25 303.25 311.25 311.25 311.25 311.25 319.25 319.25 319.25 319.25 327.25 327.25 327.25 327.25 335.25 335.25 335.25 335.25 343.25...
  • Page 30 AD9887_A 100N 100N 100N 100N 100N 100N 100N 100N 100N AD9887_FILT +3V3_AD9887 AD9887_A AD9887_FILT 0603 0603 0603 0603 0603 0603 0603 +3V3_AD9887 0603 0603 100N 100N 100N 100N 100N 100N AD9887_FILT 0603 GRE[7..0] 0603 0603 0603 0603 0603 0603 0603 ADRE0 GRE0 RED_A0...
  • Page 31 C109 C110 220N PC_AUDIO_IN_R 1NF K 50V ASW_AUDIO_OUT_L 220N 10uH 1NF K 50V TP50 C111 +5V_HP 0603 TP51 C129 3216 0603 100N HP_L 0603 0603 1NF K 50V 0603 0603 220N 0603 10U50V C112 0603 0603 C113 C144 0603 220N PC_AUDIO_IN_L ASW_AUDIO_OUT_R 220N...
  • Page 32 U150 TSSOP16 100U16V 100N R161 +3.3V_STBY RGB_SWITCH C163 C150 +3.3V_STBY 1NF K 50V SCART1_RED CAP-EL-7X11-P5 0603 1NF K 50V 1NF K 50V 1NF K 50V +5V_STBY SCART1_GREEN R168 SCART_RED SCART1_BLUE 0603 0603 C167 C168 SCART_GREEN 0603 SCART1_FB +5V_STBY SCART_BLUE 10K 0603 R153 R154 R155...
  • Page 33 VCC_DVI VCC_DVI VCC_DVI VCC_DVI VCC_DVI VCC_PC D250 R250 R251 VCC_PC D251 R252 BAV99 0603 0603 BAV99 0603 VCC_DVI U250 GVSYNC VCC_PC VCC_PC VCC_PC D253 BAV99 VSYNC VCLK BAV99 D252 100N TP35 C250 R253 R254 R255 J250 VCC_PC U251 TP36 0603 0603 0603 0603...
  • Page 34 SA7118_3V3D2 SA7118_A2 TP300 C313 C314 SVHS_YIN AI11 C315 R304 TELETEXT_CVBS AI12 0603 C316 PIP_V AI13 AOUT SAA18PIP_VOUT 0603 C317 0603 AI14 TEST5 TP303 0603 C318 AI1D TEST4 TP304 0603 C319 SVHS_CIN AI21 TEST3 0603 C320 AI22 TEST2 J300 SCART3_CHROMA 0603 SCART_GREEN AI23 TEST1...
  • Page 35 S350 100N 100N 100N 100N L1005 C350 +3.3V R1/4W-P400 0603 0603 0603 100U16V 0603 PANEL_POWER TP351 0603 0603 0603 DCLK DCLK CLKIN DRE[7..0] DRE0 TXIN0 DRE1 TXIN1 J353 DRE2 TXIN2 DRE3 TXIN3 0603 DRE4 TXIN4 DRE5 TXIN6 0603 0603 DRE6 TXIN27 DRE7 DGE[7..0]...
  • Page 36 D[15..0] +3.3V_STBY TP33 U400 +3.3V_STBY +3.3V_STBY TP203 TP34 U401 J400 ROMOEn ROMOEn ROMWEn 0603 ROMWEn +3.3V_STBY TP202 C404 BYTE 0603 TP204 C403 0603 +3.3V_STBY C400 100N 0603 +3.3V_STBY U402 100R R404 SENSE 0603 GND1 RSTINn GND2 RESIN RESET RESET 100N TLCCT ADRESS20 RESET...
  • Page 37 F451 100uH +5V_STBY J450 +12V CON-POWER4 C1011 100uH FUSE_MXT 1000U50V TP462 U451 U454 TO263 F450 100uH 220R 0603 L450 R452 FUSE_MXT 100N C487 ON/OFF VOUT +5V_STBY 100U50V S450 C450 0603 0603 1N5820-REV D451 INDUCTOR_PULSE-KM30 L453 1000U50V 100N 1000U50V C488 C451 C1014 C474 C226...
  • Page 38 JP650 VR[7..0] 31DR0 RG651 31DR1 RG650 MNR14 31DR2 MNR14 31DR3 31DR4 31DR5 11 12 RG652 RG653 31DR6 MNR14 MNR14 MHDR2X6 PW1231_3V3_SW PW1231_3V3_SW 31DR7 VG[7..0] 31DG0 VUV0 SVHS 0603 31DG1 VUV1 31TDO SVVS RG654 RG655 R650 31DG2 VUV2 10K 0603 31TCK SVCLK MNR14 MNR14...
  • Page 39 S551 R572 GFBK +3.3V_STBY 0603 MOLCON2-P2.5 GCLK GCLK GFBK 4K7 0603 A[19..1] 0603 0603 0603 RP550 RDCLK GPEN GPEN GREF RESET RESET DCLK DCLK IRQ_IDTV MNR14 RDVS GBLKSPL GBLKSPL MCKEXT RDHS GCOAST GCOAST DCKEXT RDEN GSOG GHSFOUT GHSFOUT GRE[7..0] DRE[7..0] RP551 GRE 0 Y550...
  • Page 40 PW1231_3V3_SW 1N4007 10uH C230 +3.3V PW1231_2V5 3216 100N 100N C750 0603 0603 1N4007 C231 L751 100N PW1231_3V3 0603 22uH C751 PW1231_3V3_SW C232 100N 0603 100N 0603 L752 PW1231_2V5 PW1231_2V5_D1 22uH 0603 31RAMA[13..0] 31RAMD[15..0] L753 31RAMA0 31RAMD0 PW1231_2V5_D2 31RAMA1 31RAMD1 22uH 31RAMA2 31RAMD2 31RAMA3...
  • Page 41 dram 1231 SDRAM31.schdoc +3.3V Tuner Tuner.SCHDOC Audio.schdoc saa7118-1 QSS_MAIN QSS_MAIN VDECODER.schdoc AM_SOUND AM_SOUND QSS_PIP QSS_PIP SDA_5V FIELD deinterlacer SCL_5V PW1231.schdoc MSP_RESET +33V_IF VVHS VVHS switch VVVS VVVS Audio_InOuts.SCHDOC VVCLK VVCLK SCART2_CVBS_IN SCART2_CVBS_IN VUV[7..0] VUV[7..0] SCART3_CVBS_IN SCART3_CVBS_IN VY[7..0] VY[7..0] SCART1_CVBS_IN SCART1_CVBS_IN VVPEN VVPEN SC1_V_OUT...
  • Page 42 R890 R892 R891 R893 TP827 TUN1_AGC D826 D827 0603 0603 0603 0603 R853 R854 TUN2_AGC 100R 100R QSS_MAIN SIOMAD TP825 QSS_PIP SIOMAD NOISE_Port TP826 0603 0603 R855 R856 R825 R857 R858 R826 1N4148 1N4148 SCL_5V 100R TAGC 100R +5V_IF SCL_5V 100R TAGC 100R...
  • Page 43 J926 SA7118_3V3D1 SA7118_3V3A1 SVHS_CIN SVHS_CIN SVHS_YIN SVHS_YIN TP925 TP926 C940 S-VIDEO_DIK C941 TP927 R933 AI11 SVHS_YIN C942 0603 AI12 0603 C943 TELETEXT_CVBS R934 R935 AI13 AOUT SAA18MAIN_VOUT 0603 C944 0603 0603 MAIN_V AI14 TEST5 R942 0603 AI1D TEST4 R936 0603 SVHS_CIN C945 0603...

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