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23WL46G 30WL46G

L6B TFT- LCD TV

SERVICE MANUAL

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Summary of Contents for 23WL46G

Page 1: ...23WL46G 30WL46G L6B TFT LCD TV SERVICE MANUAL ...

Page 2: ... Panel Specification 3 Back appearance of TV 5 Interconnectıon Diagram 5 Block diagram 6 Block diagram of power supply 7 Service mode 8 Service Mode items and values 10 Data sheet of important IC s and parts 11 Recommended Part List 23 Frequency list of channels 25 ...

Page 3: ...ep specified temperature and humidity condition 6 Keep out of Corrosive Gas Corrosive gas effect the polarizer and the circuit chemically and cause defects accordingly 7 Electrostatic discharge can make Damage There are electro static sensitive components such as CMOS in LCD Module Please earth human body when handle the LCD In addition please do not touch the interface connector pin with bare 8 D...

Page 4: ...r Picture Freeze Equalizer AVL Automatic Volume Level Sound Status Memory Picture Status Memory Swap Child Lock Program Lock Picture Format Switching Tru Pin 8 Auto RGB Detect Tru Pin 16 Off Timer Sleep Timer On Timer Picture Smart User Soft Natural Rich Sound Smart User Music Sports Cinema Speech Scart2 Out Selectable S Video Input Through Scart2 Audio Output Power RMS in Max at 10 THD 2x5W for 2...

Page 5: ...ghtness cd m2 450 450 450 550 550 450 Contrast 500 400 400 600 600 700 Response Time Tr Tf msec 25 25 25 25 25 23 Viewing Angle R L H L 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 85 Adaptor İnput 15V 24V Built in TV Built in TV Built in TV Built in TV PoweR consumptions 100W 100W 120W 120W 140W 180W St By Power Consumption 4W 4W 4W 4W 4W 4W Input Range 100V 240V 50 60Hz 1...

Page 6: ...PE OF IR LED BAORD CONTROL BOARD AND MAIN SWITCH BOARD MAY CHANGE ACCORDING TO THE COSMETIC OF THE TV AND SIZE BACK SIDE APPEARANCES CONTROL BOARD 220VAC INPUT POWER SWITCH LED IR BOARD SPEAKERS MAIN CHASSIS POWER SUPPLY BOARD ...

Page 7: ...2 CN3 JP453 JP451 JP452 S150 JP450 S2 S350 S50 KEY BOARD MODULE IR RECEIVER LED MODULE MAIN POWER SWITCH MODULE 220V AC INPUT S550 TO PANEL TO PANEL TO HEADPHONE JACK SPEAKER MAIN CHASSIS POWER SUPPLY MODULE ...

Page 8: ...tion Video PIP Video Main Scart RGB SVHS Y C Multi Standard Video Decoder SAA7118MP Multi Standard Video Decoder SAA7118MP EEPROM 24LC21 EEPROM 24LC21 Dual İnterface for FPD AD9887 RGB HS VS In DVI Input D SUB 15 socket DVI Socket SDRAM MT48LC16M PW1231 De Interlacer PW181 IMAGE PROCESSOR De Interlacer Scaler OSD Micro Cont Gamma Corr EEPROM 24C64 Flash Memory AM29VL160 LVDS Transmitter DS090C385 ...

Page 9: ...BY 12V 33V 1 5V_STBY 12V_AMP GND 5V 8V STAND_BY 3 3V 12V PANEL_POWER PNL_EN 12V_INVERTER L6B POWER SUPPLY BLOCK DIAGRAM MAIN CHASSIS U451 FDS9933A U454 LM2576 U458 NCP1117 U452 FDS9933N U457 NCP1117 U453 FDS9933N U455 LM2576 U456 LM317 VOLTAGE DOUBLER U450 NCP117 ...

Page 10: ...e output sound going to loudspeakers for all the sources except the Tuners The range is between 0 and 100 e nicam prescale Nicam prescale option sets the prescale values for the Nicam standard sounds for tuner inputs Changing this value you can adjust the level of the output sound going to loudspeakers for Nicam sounds entering the analog sound input of MSP The range is between 0 and 100 f fm am p...

Page 11: ... choose one of the other choices you can see the test pattern with the selected color e solid field level This option will adjust the level of the colors for the test pattern The range is betwwen 1 and 64 f Initial ATS This option will enable or disable the Initial setup for the TV Setting this option to On the TV will open from the Quick setup menu Setting this option to Off will disable this opt...

Page 12: ...een contrast 128 blue brightness 128 blue contrast 128 calibre menu ITEM TYPICAL VALUES OPTIONS video format auto color space RGB test pattern none color components all solid field level 33 initial ats on factory reset press ok to reset dpms on osd time out 60 sec version ITEM TYPICAL VALUES OPTIONS Software SL630T_CH1_T13 L6B 1 22 Chi30 GUI Project L6B Toshiba Generated Date October 01 2004 at 22...

Page 13: ...ROTECTED DESCRIPTION The main function of the TEA6415C is to switch 8 video input sources on the 6 outputs Each output can be switched to only one of the inputs whereas but any same input may be con nected to several outputs All theswitching possibilities arecontrolled through the I2 C bus DIP20 Plastic Package ORDER CODE TEA6415C 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 INPUT DATA CLOCK...

Page 14: ...r black level for RGB signals Each nominal gain between any input and output is 6 5dB For D2MAC or Chroma signal the align ment is switched off by forcing with an external resistor bridge 5 VDC on the input Each input can be used as a normal input or as a MAC or Chroma input with external resistor bridge All the switch ing possibilities are changedthrough the BUS Driving 75Ω load needs an external...

Page 15: ...ontrolled by FM PLL oscillator Sound IF SIF input for single reference Quasi Split Sound QSS mode PLL controlled SIF AGC for gain controlled SIF amplifier single reference QSS mixer able to operate in high performance single reference QSS mode and in intercarrier mode switchable via I2C bus AM demodulator without extra reference circuit Alignment free selective FM PLL demodulator with high lineari...

Page 16: ...VCO VIF PLL VIF AGC TUNER AGC SUPPLY SIF AGC AUDIO PROCESSING AND SWITCHES NARROW BAND FM PLL DEMODULATOR SINGLE REFERENCE QSS MIXER INTERCARRIER MIXER AND AM DEMODULATOR SOUND TRAPS 4 5 to 6 5 MHz TAGC CVAGC pos CAGC neg CBL VAGC 1 TOP 14 15 VPLL 19 21 9 8 16 15 16 21 23 4 2 10 9 11 10 12 11 18 20 20 22 2 31 1 30 18 17 7 8 3 5 4 6 external reference signal or 4 MHz crystal REF AFC AUD CVBS audio ...

Page 17: ... audio inputs on 4 stereo outputs All the switching possibilities are changed through the I2 C bus SO28 Plastic Micropackage ORDER CODE TEA6420D 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 24 23 22 21 11 12 GND CAPACITANCE L1 L2 L3 L4 L5 LOUT1 ROUT1 LOUT2 ROUT2 SDA SCL ADDR R1 R2 R3 R4 R5 ROUT4 LOUT4 ROUT3 LOUT3 VS SHRINK24 GND CAPACITANCE L1 L2 L3 L4 L5 LOUT1 ROUT1 LOUT2 ROUT2 SDA SCL ADDR R1 R2...

Page 18: ...MAL DATA Symbol Parameter Value Unit Rth j a Junction Ambient Thermal Resistance SHRINK24 SO28 75 75 o C W 6420 02 TBL ELECTRICAL CHARACTERISTICS TA 25o C VS 10V RL 10kΩ RG 600Ω f 1kHz unless otherwise specified Symbol Parameter Test Conditions Min Typ Max Unit SUPPLY VS Supply Voltage 8 9 10 2 V IS Supply Current 5 8 mA SVR Ripple Rejection VIN 500mVRMS BW 20 20kHz 70 80 dB MATRIX VIN Input DC Le...

Page 19: ...h level of integration enables simple flexible cost effective solutions featuring fewer required components Features Built In Memory Controller Motion Adaptive Deinterlace Processor Intelligent Edge Deinterlacing Digital Color Luminance Transient Improvement DCTI DLTI Interlaced Video Input Options including NTSC and PAL Independent horizontal and vertical scaling Copy Protection Two Wire Serial I...

Page 20: ...o Port Secondary Video Port Memory Unit Prim ary Picture Film Mode Detection 3 2 2 2 I Channel Previous Video Display Unit Video Enhancem ents Up Scaler Deinterlacer Display Tim ing Digital Output Data YUV Digital Output Timing Color Space Converter CSC Blue Screen VSync HSync Timing RGB PW1231 Internal Block Diagram ITU R BT 656 ITU R BT 601 ...

Page 21: ... 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 PVSS DR3 DR4 DR5 DR6 DR7 VDD VSS PVSS NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC NC PVDD NC NC MA4 MA3 MA5 MA2 MA6 MA1 MA7 MA0 PVDD PVSS DPAVSS DPAVDD DPDVSS DPDVDD CGMS DEN TESTCLK VSS VDD MD0 MD15 MD1 MD14 MD2 MD13 MD3 MD12 MD4 MD11 MD5 MD10 MD6 MD9 MD7 MD8 PVSS PVDD MCLK MWE MCAS MRAS MCLKFB MA12 MA11 MA13 MA9 MA10 MA8 2W_A...

Page 22: ...ernal frame buffer including motion adaptive temporal deinterlacing with film mode detection When used in combination with the new third generation scaler this advanced video processing technology delivers the highest quality video for advanced displays Both input ports support integrated DVI 1 0 content protection using standard DVI receivers A new advanced OSD Generator with more colors and larg...

Page 23: ...mage Scaler PortB 7 0 PortA 7 0 PortC 7 0 GRGB 47 0 GCLK GFBK GPEN GVS GHS GSOG OSD Memory Bus OSD CPU Memory Controller RGBE 23 0 A 19 0 D 15 0 BHEN CS 1 0 RD WR GCOAST GREF GBLKSPL GHSFOUT CPUTDO RAMWE RAMOE ROMWE ROMOE Video Deinterlace Spatial Noise Reduction CRISP Image Scaler Horizontal Image Scaler Memory Out Bus Memory In Bus Processor Memory Interface SDRAM Frame Buffer Frame Buffer Memor...

Page 24: ...R1204F LENS IR LED 30 L38 LCD TV ZR1205F BACK COVER 27 L57 LCD TV SILVER L6B ZR1208F KNOB POWER 27 L57 LCD TV SILVER ZR1212F KNOB PROGRAM VOL 27LCD TOSHIBA SILVER ZR1251F FRONT COVER G BL BUR SIL P ED 27L57 TOS ZR1255 BACK COVER DARK GRAY P ED 27L6BL57 LCD ZR1258 POWER KNOB BURNISH SILVER PAINTED 27 L57 ZR1805 CUSHION LEFT 30 LCD TV ZR1806 CUSHION RIGHT 27 LCD TV ZR1910 ADAPTOR SPS 180W 24 5 12 5 ...

Page 25: ...72 TRN FDS9933A U454 453294 IC CHIP LM2576D2TR4 005V 3A TO263 STPT R U455 453294 IC CHIP LM2576D2TR4 005V 3A TO263 STPT R U456 453428 IC CHIP LM317MDT VAR VOLT REG TO 252 U457 453124 IC CHIP NCP1117DT33RK TO 252 PACKAGE U458 453124 IC CHIP NCP1117DT33RK TO 252 PACKAGE U50 452706 IC TDA1308T N1 SO G8 T R U51 453352 IC CHIP MSP3410 MQFP64 U52 453351 IC TEA6420 SO28 U650 453346 IC CHIP PW1231A U750 4...

Page 26: ... 25 471 25 CH 22 479 25 479 25 479 25 479 25 CH 23 487 25 487 25 487 25 487 25 CH 24 495 25 495 25 495 25 495 25 CH 25 503 25 503 25 503 25 503 25 CH 26 511 25 511 25 511 25 511 25 CH 27 519 25 519 25 519 25 519 25 CH 28 527 25 527 25 527 25 527 25 CH 29 535 25 535 25 535 25 535 25 CH 30 543 25 543 25 543 25 543 25 CH 31 551 25 551 25 551 25 551 25 CH 32 559 25 559 25 559 25 559 25 CH 33 567 25 56...

Page 27: ...25 807 25 CH 64 815 25 815 25 815 25 815 25 CH 65 823 25 823 25 823 25 823 25 CH 66 831 25 831 25 831 25 831 25 CH 67 839 25 839 25 839 25 839 25 CH 68 847 25 847 25 847 25 847 25 CH 69 855 25 855 25 855 25 855 25 CH 70 863 25 863 25 CH 71 871 25 CH 72 879 25 CH 73 887 25 160 00 CH 74 69 25 172 00 CH 75 76 25 220 00 CH 76 83 25 232 00 CH 77 90 25 244 00 CH 78 97 25 256 00 CH 79 59 25 268 00 CH 80 ...

Page 28: ...35 25 335 25 S 26 343 25 343 25 343 25 343 25 S 27 351 25 351 25 351 25 351 25 S 28 359 25 359 25 359 25 359 25 S 29 367 25 367 25 367 25 367 25 S 30 375 25 375 25 375 25 375 25 S 31 383 25 383 25 383 25 383 25 S 32 391 25 391 25 391 25 391 25 S 33 399 25 399 25 399 25 399 25 S 34 407 25 407 25 407 25 407 25 S 35 415 25 415 25 415 25 415 25 S 36 423 25 423 25 423 25 423 25 S 37 431 25 431 25 431 2...

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