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Toshiba 20VL44 Service Manual

Colour television
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TOSHIBA
SERVICE MANUAL

COLOUR TELEVISION

20VL44
PRINTED IN UK. 2003 C

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Summary of Contents for Toshiba 20VL44

  • Page 1: Colour Television

    TOSHIBA SERVICE MANUAL COLOUR TELEVISION 20VL44 PRINTED IN UK. 2003 C...
  • Page 2 CONTENTS PAGES Safety instructions Technical specifications Panel Specification Chassis block diagram Scaler block diagram Block diagram of power supply Chassis overwiev Service mode items and explanations Data sheet of important IC’s Recommended Part List Frequency list of channels...

  • Page 3: Safety Precautions

    SAFETY PRECAUTIONS GENERAL GUIDELINES Always use the manufacturer’s replacement safety components. The critical safety components marked High temperature & high humidity reduce the life-time. with on the schematics diagrams should not be LCD is not proper to be used at high temperature by other substitutes.
  • Page 4 L5A TECHNICAL SPECIFICATION Receiving System PAL B/G+I+D/K SECAM L/L' Comb Filter Adaptive 4H\2H Scaling Upto SXGA at 75Hz Gamma Correction 8 to 10-bit LUT Histogram Equalization Stereo Decoding German A2, Nicam (German A2, Nicam, BTSC) Stereo L, R In Stereo L, R Out Audio Output Power RMS in Max at 10% THD) 2x3W, 2x5W for 22"W Level (1.5, 2.5, Teleweb)

  • Page 5: Panel Specification

    PANEL SPECIFICATION 14" 15" 17" 17W" 20" 22W" 23W" Samsung Hannstar Manufacturer Samsung Samsung Samsung Sanyo Double TTL\Single Single TTL\Single Interface Single LVDS Dual LVDS Single LVDS Single LVDS Single LVDS LVDS LVDS SVGA (800x600) Resolution VGA (640x480) XGA (1024x768) SXGA (1280x1024) WXGA (1280x768) WXGA (1280x720) WXGA (1280x768)
  • Page 6 BLOCK DIAGRAM OF MAIN CHASSIS (L5A) SVHS-Y/C SC1-RGB CVBS-IF Video Decoder Scaler PANEL Tuner IF VPC 3230D Stage HS/VS HS/VS HS/VS CVBS HS/VS VGA-IN EEPROM 24LC02 Teletext Decoder EEPROM SDA 5550 24LC16 K6T1008V2E M29W040 Flash SRAM (Optional) Memory TDA1571 Stereo Amplifier MSP3410G AUDIO DECODER...
  • Page 7 BLOCK DIAGRAM OF SCALER BAC LIGHT UNIT Panel_En Standby Mute Reset S508 (LVDS) S500(TTL) BR1_ADJ BLK_EN HS/VS LVDS GM 5221 U500 CONNECTOR (20 OR 30 PINS) VGA_RGB (S503,S502) CONTROLLER VGA HS/VS S506 CONN. DAUGHTER BOARD FOR TTL INTERFACES U501 U503 KEYBOARD PARALEL SERIAL FLASH...
  • Page 8 L5A POWER SUPPLY BLOCK DIAGRAM 3.3V-STBY LM1117 S600 V-INV 3.3V +15V-STBY DC Jack 15V,12V F600 +5V-STBY LM2576 LM2576 1.8V-STBY LM1117 U600 U607 1.8V Fuse S602 U605 F601 V-INV V-INV 78L08 2.5V U606 LM117-3.3V 3.3V U604 INPUT: 12V FOR 14,15,17 INCH 5V-STBY U602 15V FOR 20, 22 INCH...
  • Page 9 L5-A Low-to-Mid End LCD-TV BOARD OVERVIEW L5-A Low-to-Mid End LCD TV board incorporates the LCD Controller gm2221, to create a high quality, stand-alone LCD-based TV system for consumer applications. Figure 1 illustrates the Block diagram of the board. This board supposed to have two versions: 1.
  • Page 10 On the board, one high quality video decoder (U100) is provided (VPC3230D of Micronas) to process video inputs coming from the video sources. The video processor can process 3 composite video inputs and 1 S-Cideo input from the NTSC/PAL video sources. The CVBS output recovered from the tuner module is made available to one of the video inputs of the video decoder.
  • Page 11 A keypad connector (S507) is provided which utilizes the integrated low bandwidth ADC in gm2221 for scanning 5-6 keys (menu,V+,V-,P+,P- keys standard- source key optional) on the keypad. The keypad allows access to the OSD without using the remote IR controller. The L5-A board also has In System Programming (ISP) capability for the external flash ROM using DDC2Bi.
  • Page 12 4. GM2221 LCD TV CONTROLLER The gm2221 IC is a highly integrated single channel scaler that can be used for both LCD monitors up to SXGA/UXGA resolutions and rear projection systems with DLP and HTPS LCD engines up to 1280x720 (720P). Some of the key features include: •...

  • Page 13: Hotel Mode

    L5A SERVICE MENU Service Menu is entered by pressing 9, 3, 0, 1 keys on the remote controller when the Picture icon is highlighted in the Main Menu. Service Menu has 3 sub-menus. These are: • Options • Adjustments • Selections.
  • Page 14 STAND BY If this Option is OFF, the TV will stay in Stand By mode after a Power On. If this Option is ON, the TV will recall its last stand by status before the Power Off, and switch on from Stand By automatically, if the last state was ‘Stand by On’.
  • Page 15 SELECTIONS This sub-menu contains selections. • TUNER TYPE SAMSUNG / PHILIPS • TELETEXT NO TEXT / FAST / FAST&TOP • MSP CLIP REDUCE VOL / REDUCE TONE / COMPROMISE / DYNAMIC TUNER TYPE One of two supported tuner can be selected from this item. System must be restarted for this change to take effect.
  • Page 16 NORWAY POLAND PORTUGAL SPAIN SWEDEN SWITZERLAND BG + L TURKEY UNITED KINGDOM For countries France, Belgium and Switzerland, autoprogramming is done twice. For Belgium and Switzerland, first BG channels will be searched, after the search in BG is done, searching will restart for L standard.
  • Page 17 DEFAULT OPTIONS/ ITEM NAME VALUES OR VALUES SETUP OPTIONS ON/OFF ON/OFF ON/OFF ON/OFF SCART 2 ON/OFF ON/OFF SVHS ON/OFF HOTEL MODE ON/OFF STBY ON/OFF MSP CARRİER MUTE ON/OFF WSS SCART ON/OFF FIRST ATS ON/OFF BACKLIGHT POL ON/OFF FACTORY MODE ON/OFF ADJUSTMENTS WHITE R 0-255...
  • Page 18 GENESIS GM5221 LCD TV CONTROLLER The gm5221 is an LCD TV controller supporting resolutions up to SXGA (1280x1024). The gm5221 leverages Genesis patented advanced image-processing technology as well as a proven integrated ADC/PLL and an Ultra-Reliable DVI™ compliant digital receiver to provide excellent image quality. gm5221 also integrates a microcontroller, an OSD controller, advanced color management and dual LVDS transmitters.
  • Page 19 1.2 gm5221 Family Features • • Intelligent Image Processing™ Embedded X86 On-chip Microcontroller • • Fully programmable zoom ratios High-performance X86 MCU with on-chip RAM and ROM • • High-quality shrink capability from UXGA resolution External parallel ROM or serial SPI ROM interface •...
  • Page 20 2 gm5221 Pinout The gm5221 devices are packaged in a 208-pin Plastic Quad Flat Pack (PQFP). AGND_ADC ROM_DATA3 RESERVED ROM_DATA2 AVDD_ADC_3.3 ROM_DATA1 AGND_RED ROM_DATA0 RED- ROM_OEn RED+ ROM_WEn AVDD_RED_3.3 ROM_CSn AGND_GREEN CRVSS GREEN- CVDD_1.8 GREEN+ RESERVED SOG_MCSS AVDD_LV_E_3.3 AVDD_GREEN_3.3 AVSS_LV_E AGND_BLUE CH3P_LV_E/ER0 BLUE-...
  • Page 21 Video Processing - VPC3230D 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 GNDF I2CSEL ISGND VSUPF VSUPY VOUT GNDY VIN1 VPC3230D VIN2 VIN3 VIN4 GNDLLC VSUPAI VSUPLLC...
  • Page 22 Video Processing - VPC3230D 1. Features Video Decoding RGB Processing - 4 Composite inputs, 1 S-VHS input - Programmable RGB matrix - Composite video & sync output - Digital color bus interface - integrated high-quality A/D converters - Additional analog RGB/Fast blank input - Adaptive 2H comb filter Y/C separator - Half contrast switch - 1H NTSC comb filter...

  • Page 23: Block Diagram

    Block Diagram CIN1 Adaptive MIXER 2D Scaler Output Y OUT Analog Color Comb Formatter Front End Decoder VIN1 Filter CrCb OUT VIN2 Panorama NTSC, ITU-R 656 Mode YCOE PAL, ITU-R 601 VIN3 SECAL AGC, Contrast FIFO Memory NTSC 2*ADC VIN4 Brightness CNTL Control...
  • Page 24 Video Processing - VPC3230D Pin Name Type Pin Name Type Short Description Short Description B1/CB1IN GND PA SUPPLYD Blue1/Cb1 Analog Component Input Ground, Pad Decoupling Circuitry G1/Y1IN V SUPPA SUPPLYD Green1/Y1 Analog Component Input Supply Voltage, Pad Decoupling Circuitry R1/CR1IN LLC2 Red1/Cr1 Analog Component Input Double Clock Output...
  • Page 25 Video Processing - VPC3230D Pin Name Type Pin Name Type Short Description Short Description Picture Bus Chroma Chroma / Analog Video 5 Input VIN1 Picture Bus Chroma(LSB) Video 1 Analog Input GND SY SUPPLYD Ground, Sync Pad Circuitry VIN2 Video 2 Analog Input V SUPSY SUPPLYD Supply Voltage, Sync Pad Circuitry VIN3 Video 3 Analog Input...
  • Page 26 Audio Processing - MSP3440G 64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 AVSUP CAPL_M AVSUP AHVSUP ANA_IN1+ CAPL_A SC1_OUT_L ANA_IN- SC1_OUT_R ANA_IN2+ VREF1 TESTEN SC2_OUT_L XTAL_IN XTAL_OUT...
  • Page 27 Audio Processing - MSP3410D Pin Name Type Pin Name Type Short Description Short Description V SUPPA SUPPLYD Not connected Supply Voltage I2C_CL IN/OUT LLC2 I2Cclock Double Clock Output I2C_DA IN/OUT LLC1 IN/OUT I2C data Clock Output I2S_CL IN/OUT V SUPLLCSUPPLYD I2S clock Supply Voltage, LLC Circuitry I2S_WS...
  • Page 28 Audio Processing - MSP3440G Short Description Pin Name Type Pin Name Type Short Description Crystal oscillator GND SY SUPPLYD XTAL_OUT OUT Ground, Sync Pad Circuitry Test pin V SUPSY SUPPLYD Supply Voltage, Sync Pad Circuitry Audio clock output(18.432MHz) INTLC AUD_CL_OUT O UT Interlace Output Active Video Output Not connected...
  • Page 29 SDA5550 MICROCONTROLLER BLOCK DIAGRAM...
  • Page 30 ADAPTOR AC12V/5A CLASS II ZC5850-00A ACCESSORIE BOX 20" LCD TV BEKO ZF9110 L5A CHASIS 14"TOS P/NX/1/K/S/VGA/NT A-OS ZF9187F RC L5A TOSHIBA GRI/SHINE SI.P.ED CT-873 ZG4110 L5A CHASIS 20"TOS AU P/NX/2/K/S/VGA/NT ZG4255-01 BACK COVER TOSH.BRI.SIL.P.20" LCDTV VGA ZH1183-CH1 INVERTOR 20" V201V1-T01 (PLCD0318604H) ZH6183-AU3 INVERTOR 14"...
  • Page 31 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 32 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 33 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 34 LC CHASSIS TFT- LCD TV SERVICE MANUAL...

  • Page 35: Table Of Contents

    CONTENTS PAGES Safety instructions Technical specifications Power rating and Panel Specifications Remote control explanations Service Menu of the TV Set appearrances Block diagram of the VCTI Block diagram of Microcontroller (Genesis) Block diagram of power supply Data sheet of important IC’s Service mode items and explanations Replacement part List Frequency list of channels...

  • Page 36: Safety Instructions

    SAFETY PRECAUTIONS GENERAL GUIDELINES Always use the manufacturer’s replacement safety components. The critical safety components marked High temperature & high humidity reduce the life-time. with on the schematics diagrams should not be LCD is not proper to be used at high temperature by other substitutes.

  • Page 37: Technical Specifications

    SPECIFICATIONS Receiving System PAL B/G+I+D/K SECAM L/L' Tuning System PLL FST Comb Filter Adaptive 4H\2H LTI, CTI Filters Optional Sync On Green (SOG) support on graphics Scaling Upto SXGA at 75Hz Stereo Decoding (German A2, Nicam, BTSC) German A2, Nicam Virtual Dolby Optional Subwoofer...

  • Page 38: Power Rating And Panel Specifications

    POWER RATING AND PANEL SPECIFICATION 15" 17" 20" 22W" 26" 27" 32" Adaptor Input Built-in Power Built-in Power Built-in Power Current rating Power consumptions 100W 130W 130W 130W St-By Power <3W <3W <3W <3W <3W <3W <3W Consumption 100-240V/50, 60Hz 100-240V/50, 60Hz 100-240V/50, 60Hz 100-240V/50, 60Hz100-240V/50, 60Hz 100-240V/50, 60H100-240V/50, 60Hz Input Range Audio Output Power...

  • Page 39: Remote Control Explanations

    REMOTE CONTROL 1. Picture Format ( 2. Temporary mute of volume (MUTE) ( 3. Numeric buttons 4. Audio/Video (AV) ( 5. PC mode transition ( ) 6. Teletext / MIX / TV choice buttons ( 7. Up (Menu -Teletext) ( 8.

  • Page 40: Service Menu Of The Tv

    SERVICE MENU OF THE TV DEFAULT VALUES OR OPTIONS/ VALUES SETUP ITEM NAME OPTIONS SCART 2 ON/OFF ON/OFF SVHS ON/OFF HOTEL MODE ON/OFF STBY RECALL ON/OFF RECALL LAST AV ON/OFF MSP CARRIER MUTE ON/OFF WSS RF ON/OFF AUTO AV 16:9 ON/OFF FIRST ATS ON/OFF...
  • Page 41 LC (L5C) SERVICE MENU Service Menu is entered by pressing 9, 3, 0, 1 keys on the remote controller when the Picture icon is highlighted in the Main Menu. Service Menu has 3 sub-menus. These are: • Options • Adjustments •...
  • Page 42 ADJUSTMENTS This sub-menu contains numeric adjustments. These items are: • WHITE R • WHITE G • WHITE B • BRIGHTNESS • CONTRAST • COLOR • PRESCALE FM • PRESCALE NICAM • PRESCALE SCART • HOTEL VOLUME WHITE R / WHITE G / WHITE B These are used for color bias adjustment.
  • Page 43 MSP CLIP This selection identifies which method will be used by the sound processor to prevent clipping effects on volume. AUTOPROGRAMMING When the user selects the Autoprogram item in Setup menu, Country Selection menu is opened. The user must select a country before the Autoprogramming starts. Broadcast system will be selected according to the country selected.

  • Page 44: Set Appearrances

    SET APPEARANCE OF 26-32 INCH Power Supply board Main Back light module Audio Amplifier Chassis (Built-in Panel) SET APPEARANCE OF 15-23 INCH Back light module Main Chassis...

  • Page 45: Block Diagram Of The Vcti

    BLOCK DIAGRAM OF VCTI AND PERIPHERALS HEADPHONE JACK HEADPHONE VCTI IC MULTISYSTEM IF INPUT AMPL.TDA1308 FILTER PSS DIP88 TUNER U303 SC1-AUDIO-OUT Aout1 R/L SC2-AUDIO-OUT SPEAKERS Aout2 R/L AUDIO AMPL. SCART 1 MAX9704 SC1 AUDIO-IN L/R OUT Ain2 L/R Ain1 L/R SCART 2 MUTE RGB-IN...

  • Page 46: Block Diagram Of Microcontroller (Genesis)

    BLOCK DIAGRAM OF GENESIS IC AND PERIPHERALS RESET Q 24 BIT RGB OUTPUT TO LVDS INTERFACE RGB-G HS/VS HS/VS-G PANEL CTRL IR INPUT CLOCK KEYBOARD PANEL EN MEMORY CARD-RCA SW U201 EEPROM RCA-S2-SW 24LC16 S1-MAIN-SW U203 PC-SD-SW SERIAL FLASH 25VF040 LED 2 SCART1 PIN 8 PANEL PWR...

  • Page 47: Block Diagram Of Power Supply

    BLOCK DIAGRAM OF 14-23 INCH POWER SUPPLY OPTIONAL FOR 14"-17"-20" S600 S601 U602 MP1593 1.8V STBY U600 MP1593 STEP DOWN (15V) 5V_STBY F600 STEP DOWN U603 LM1117 CONVERTOR 15"-17" 12V FUSE 5A CONVERTOR 20" 15V Tuner Supply 3.3V STBY U601 LM1117 OPTIONAL FOR 20"W- 22"-23"...
  • Page 48 BLOCK DIAGRAM OF 26 - 32 INCH POWER SUPPLY S101 12V-- R101 150K R609 220K R102 10K 5V-- R101 56K R609 NI R102 18K AMP_POW_S AMP_POW U600 MP1593 PNL_PWR U604 STEP DOWN SI9933 CONVERTOR MOSFET POWER SWITCH U606 LM1117 STBY Enable U100 MP1593 5V _ STBY...

  • Page 49: Data Sheet Of Important Ic's

    GENESIS GM5221 LCD TV CONTROLLER The gm5221 is an LCD TV controller supporting resolutions up to SXGA (1280x1024). The gm5221 leverages Genesis patented advanced image-processing technology as well as a proven integrated ADC/PLL and an Ultra-Reliable DVI™ compliant digital receiver to provide excellent image quality. gm5221 also integrates a microcontroller, an OSD controller, advanced color management and dual LVDS transmitters.
  • Page 50 1.2 gm5221 Family Features • • Intelligent Image Processing™ Embedded X86 On-chip Microcontroller • • Fully programmable zoom ratios High-performance X86 MCU with on-chip RAM and ROM • • High-quality shrink capability from UXGA resolution External parallel ROM or serial SPI ROM interface •...
  • Page 51 2 gm5221 Pinout The gm5221 devices are packaged in a 208-pin Plastic Quad Flat Pack (PQFP). AGND_ADC ROM_DATA3 RESERVED ROM_DATA2 AVDD_ADC_3.3 ROM_DATA1 AGND_RED ROM_DATA0 RED- ROM_OEn RED+ ROM_WEn AVDD_RED_3.3 ROM_CSn AGND_GREEN CRVSS GREEN- CVDD_1.8 GREEN+ RESERVED SOG_MCSS AVDD_LV_E_3.3 AVDD_GREEN_3.3 AVSS_LV_E AGND_BLUE CH3P_LV_E/ER0 BLUE-...
  • Page 52 VCT 49xxI Volume 1: General Description General Description 1.1. Features The VCT 49xxI family offers a rich feature set, cover- 1. Introduction ing the whole range of state-of-the-art 50/60-Hz TV applications. The VCT 49xxI is an IC family of high-quality single- –...
  • Page 53 IFIN+ Sound Audio Frontend Processor Demodulator Processor IFIN- PROT HOUT HFLB VERT Comb Color CVBS in Display & Filter Decoder YCrCb in Video Panorama Video Deflection Frontend Scaler Backend RGB in Processor Component RGB out CVBS out Interface RGB in SENSE I2C Master/ Display...
  • Page 54 January 2001 Si9933ADY ® ® Dual P-Channel PowerTrench MOSFET General Description Features This P-Channel MOSFET is a rugged gate version of • –5 A, –20 V, R = 75 mΩ @ V = –4.5 V DS(ON) Fairchild Semiconductor’s advanced PowerTrench = 105 mΩ...

  • Page 55: General Description

    MP1593 3A, 28V Step Down Converter Monolithic Power Systems PRELIMINARY General Description Features The MP1593 is a step-down regulator with an 3A Output Current internal Power MOSFET. achieves Programmable Soft-Start continuous output current over a wide input 100mΩ Internal Power MOSFET Switch supply range with excellent load and line Stable with Low ESR Output Ceramic regulation.

  • Page 56: Pin Description

    MP1593 3A, 28V Step Down Converter Monolithic Power Systems PRELIMINARY Pin Description BS 1 COMP Exposed Pad on Backside. Connect to Pin 4. Table 1: Pin Designators Name Description High-Side Gate Drive Boost Input. BS supplies the drive for the high-side n-channel MOSFET switch.

  • Page 57: Replacement Part List

    REPLACEMENT PART LIST The components which are referred positions may changes by model, size, cosmetic and specification of the LCD TV. Please apply web pages for current part list. The items marked with red are safety components or need to be replaced with original/approved parts.
  • Page 58 PART PART PART DESCRIPTION PART DESCRIPTION NUMBER NUMBER C200 294125R CC-CHIP 100NF K 25V /0603 X7R C448 294125R CC-CHIP 100NF K 25V /0603 X7R C201 294125R CC-CHIP 100NF K 25V /0603 X7R C449 294125R CC-CHIP 100NF K 25V /0603 X7R C202 294125R CC-CHIP 100NF K 25V /0603 X7R...
  • Page 59 PART PART PART DESCRIPTION PART DESCRIPTION NUMBER NUMBER Q311 401142R TRN-CHIP BC858BLT1G SOT23 L324 053804R COIL-CHIP 10UH K 0805 Q312 401142R TRN-CHIP BC858BLT1G SOT23 C386 290475R CC-CHIP 47PF J 50V /0603 NPO TAPE Q313 401142R TRN-CHIP BC858BLT1G SOT23 C387 290475R CC-CHIP 47PF J 50V /0603 NPO TAPE R329 172276R...
  • Page 60 PART PART PART DESCRIPTION PART DESCRIPTION NUMBER NUMBER C403 294234R CC-CHIP 220NF K 16V /0603 X7R C348 251112R EC 10UF 50V RS 11*5 TAPING R=5MM C404 294234R CC-CHIP 220NF K 16V /0603 X7R C419 291337R CC-CHIP 330PF J 50V /0603 NPO C332 294125R CC-CHIP 100NF K 25V /0603 X7R...
  • Page 61 PART PART PART DESCRIPTION PART DESCRIPTION NUMBER NUMBER D608 303867R DIODE-CHIP SL23 DO214AA R105 172224R RC-CHIP 2.2K J 1/16W/0603 TAPE L609 053946R COIL-CHIP B82464G4223M EPCOS R109 173229R RC-CHIP 22K J 1/16W /0603 U600 453553R IC-CHIP MP1593DN-LF-Z DC-DC CONV SOIC8N X52527R CABLE WITH.TERM.L=110MM YEL C600 294125R...
  • Page 62 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 63: Frequency List Of Channels

    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 64 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 65 14’’, 20’’LCD TV TUNER POWER +12V S602 U600 LM2576 F600 L600 3.3uH PE-54040 L602 FUSE 5A L601 CONN-POWER C604 C600 ON/OFF VOUT +5V_STBY 1000U16V 100N 3.3uH TU200 TCPQ9091PD28A C605 1000U16V S600 D601 100uH C617 C601 L603 41792-2 1N5820 1000U16V 100N L201 10uH C208...
  • Page 66 14’’, 20’’LCD TV TELETEXT VIDEO L100 3.3V_M +3.3V 10uH L101 L300 +3.3V 10uH C125 C101 C102 C103 C127 10uH C110 C128 C104 C105 C106 C107 C108 C109 C310 C300 C301 C302 100N 100N 100N 100N 220P 100N 100N 100N R120 R121 100U16V 100N...
  • Page 67 L5C LCD TV 14’’,20’’ L5C - SCALER VCT-IF AND PERIPHERALS L300 J224 175mA J316 1V8_STBY VDD1V8D 10uH C341 C300 C337 3V3_STBY 3V3AVDD L200 10U25V 100N 470P L316 Q314 125mA 12V-A 10uH 10uH TP200 L301 Q200 225mA SCL5V SCL3V3 C247 C212 C200 C201 C202...
  • Page 68 L5C LCD TV 14’’,20’’ GRAPHICS D400 LVDS INTERFACE 5V_STBY R420 R421 C446 1N4148 EDID 100N U400 D401 TXE_3P S200 J200 BAV99L PIN13 TP203 R406 J400 BLUE_G C457 BLUE+ J201 TXE_3N PIN14 TP205 BLUE_DSUB BLUE_SW BLUE+ R412 J202 TXCLKEP P400 TP403 PIN15 TP206 TXCLKEN...

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