Hyundai H-LCD2004 Service Manual
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Hyundai H-LCD2004 Service Manual

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rev. 1.03
Include:
Service Manual
LCD TV
H-LCD2004
HYUNDAI Electronics
Service Support Team
RUS
2006-01-30

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Summary of Contents for Hyundai H-LCD2004

  • Page 1 HYUNDAI Electronics Service Support Team Service Manual LCD TV H-LCD2004 rev. 1.03 2006-01-30 Include:...

  • Page 2: Table Of Contents

    CONTENTS CONTENTS ----------------------------------------------------------------------------2 Main Unit Description---------------------------------------------------------------4 Features---------------------------------------------------------------------------------6 Warning and Cautions--------------------------------------------------------------7 Replacement of Memory IC-------------------------------------------------------9 Net Dimension-------------------------------------------------------------------------9 Remote Controller Functions----------------------------------------------------10 BUS Control Adjustment -----------------------------------------------------11 ----------------------------------- Principle ICS ----------------------------------14 Block Diagram------------------------------------------------------------------------18 Exploded View------------------------------------------------------------------------27 List of Parts----------------------------------------------------------------------------28 Trouble Shooting--------------------------------------------------------------------29...
  • Page 3 2.Main Unit Description...

  • Page 4: Features

    Features Model Model Functions Functions L20L6A L20L6A LG.PHILIPS TV in Screen size(mm×mm) 20 inch D-SUB jack Aspect ratio DVI socket Resolution 640×480 SCART jack Brightness 450cd/m2 Ear-Phone Out 350:1 Contrast(Darkroom) Teletext Response time(ms) Semitransparent menu Color system PAL/SECAM ZOOM Audio system DK/BG/I 16:9 mode 10 NO.of preset channels...

  • Page 5: Warning And Cautions

    4. Warnings and Cautions Warning High voltages are used in the operation of this product. Do not remote the cabinet back from your set. Refer servicing to qualified service personnel. Warning To prevent fire or electrical shock hazard, Do not expose the main unit to rain or moisture.
  • Page 6 Caution Never stand on, lean on, push suddenly the product or its stand. You should pay special attention to children to children. Caution Do not place the main unit on an unstable cart stand, shelf or table. Serious injury to an individual, and damage to the television, may result if it should fall.

  • Page 7: Replacement Of Memory

    6. REPLACEMENT OF MEMORY IC 1. MEMORY IC. This LCD TV uses memory IC. In the memory IC are memorized data for correctly operating the video and sound circuits. When replacing memory IC, be sure to use IC written with the initial value of data. 2.

  • Page 8: Remote Controller Functions

    8. Remote Controller Functions Mute Power/Standby (Ref.P7.) (Ref; P6) TV/AV TV/AV Select (Ref; P7.) Direct Access Numeric Keys Call (Ref.P6) (Ref.P7.) Child Lock TEXT (Ref.P8) -/-- Quick View Teletext (Ref.P7) (Ref.P11，P12) SUBCODE CANCEL TIMER SOUND PICTURE REVEAL HOLD Picture Effect (Ref.P8.) Teletext (Ref.P11)

  • Page 9: Bus Control Adjustment

    9. BUS Control Adjustment To enter BUS control mode, Press “Menu” key into “SOUND” menu, then press digital key “6”,”4”,”8”,”3” on the Remote control unit continuously for factory used. Press “0” to “9“ key, (Mkey) and corresponding on-screen display will be appeared.On TV screen “M” will be indicated, this means entered bus control mode.And press following key, each function will be available.
  • Page 10 brightness from UOC, otherwise adjustable brightness from the scaller. g) Adjust MS B MAX, to limit the maximum adjustable brightness for the scaller. h) Adjust MS B MIN, to limit the minimum adjustable brightness for the scaller. Adjust MS C Delimiter, to get the value correspond to the contrast, below the value, adjustable contrast from UOC, otherwise adjustable contrast from the scaller.
  • Page 11 SOFT COL COOL BD WARM RD SUB Brightness AV CONFIG YD PAL CONTRAST SUB COLOUR YD NTSC SUB Sharpness YD SECAM SUB TINT YD AV MS B Delimiter SC Brightness MS B MAX CSTHDEL MS B MIN UOC VOLUME MS C Delimiter BAND MODE MS C MAX START ON...

  • Page 12: Principle Ics

    10 .Principle ICS A. ICs functional description Function: TV signal processor with embedded μ-Controller TDA93XX SYMBOL DESCRIPTION P1.3 3 Wires serial bus chip select, active high C-bus clock line C-bus data line P2.0 Audio mute SCART_DET SCART SW input, active high Control keys input *3 P3.2 Panel power supply control, active high...
  • Page 13 AUDEXT EHTO EHT/overvoltage protection input PLL IF IF-PLL loop filter IFVO/SVO IF video output / selected CVBS output supply voltage TV processor CVBS INT internal CVBS input GND1 ground for TV processor CVBS/Y CVBS/Y input CHROMA C input AUDOUT/AMOUT *1 audio output /AM audio output (volume controlled) INSSW2 RGB / YUV insertion input...
  • Page 14 Input “ON” CHANEL TDA9859 Function: Universal Sound processor Symbol Function Symbol Function AV1L AV1 Audio Left input AV1R AV1 Audio input Right Not used Not used MAINL Main Audio Left input AV2R AV2 Audio input Right CSMO Smoothing Capacitor CPS1 Pseudo stereo Cap.
  • Page 15 TDA9859...

  • Page 16: Block Diagram

    L221 L221 120 OHM 120 OHM L101 L101 120 OHM 120 OHM R223 R223 3.3K 3.3K C222 C222 R108 R108 R107 R107 C104 C104 C103 C103 3.3K 3.3K 3.3K 3.3K 0.1u 0.1u 0.01u 0.01u 47uF/16V 47uF/16V R103 R103 I2C_SDA 2,5,6 R104 R104 I2C_SCL...
  • Page 17 R116' R116' VGA_CTL AUDOUT R895 R895 R896 R896 TV_L L891 L891 TV_R R861 100 R861 100 I2C_SCL I2C_SDA 3,5,6 +5V_ +5V_ R803 R803 C897 C897 R862 100 R862 100 C898 C898 100uF/16V 100uF/16V 0.47u 0.47u R894 R894 R897 R897 +5V_ C894 C894 C854...
  • Page 18 R706 R706 R705 R705 R704 R704 R703 R703 R702 R702 R701 R701 1.2K 1.2K 2.0K 2.0K 2.7K 2.7K 3.9K 3.9K 6.8K 6.8K SW707 SW707 SW706 SW706 SW705 SW705 SW704 SW704 SW703 SW703 SW702 SW702 SW701 SW701 POWER POWER MENU MENU U701 U701 IR_IN...
  • Page 19 J611 J611 r503,r506,r508 option(bypass for better phase) L611 L611 R614 R614 C614 0.047u C614 0.047u RIN0 120 OHM 120 OHM L612 L612 R615 R615 C615 0.047u C615 0.047u GIN0 120 OHM 120 OHM L613 L613 R616 R616 C616 0.047u C616 0.047u BIN0 120 OHM 120 OHM...
  • Page 20 RA[7..0] RA[7..0] C510 C510 C511 C511 C512 C512 C513 C513 C514 C514 C515 C515 C516 C516 C517 C517 GA[7..0] GA[7..0] C520 C520 C521 C521 C522 C522 C523 C523 BA[7..0] RAO[7..0] BA[7..0] 33RX8 33RX8 GAO[7..0] RN501 RN501 RAO0 BAO[7..0] RAO1 RAO2 RAO3 VLCD RAO4...
  • Page 21 VPLL VDPLL C423 C423 C424 C424 10uF/16V 10uF/16V 0.1u 0.1u U401 U401 U411 U411 RIN1 R411 R411 C411 0.047u C411 0.047u RIN0 RIN0 RIN0M R414 R414 C414 0.047u C414 0.047u GIN1 GIN0 GIN0 GIN0M C410 1000p C410 1000p SOGIN0 BIN1 BIN0 R417 R417...
  • Page 22 R318 100 R318 100 C311 0.47uF/16V C311 0.47uF/16V R313 10K R313 10K VIDEO_SET1 V1_L 0.47uF/16V 0.47uF/16V R318 100 R318 100 R314 10K R314 10K VIDEO_SET2 V1_R C316 C316 C312 C312 0.47uF/16V 0.47uF/16V R318 10K R318 10K C313 C313 C314 C314 A_R_OUT 470p 470p...
  • Page 23 R251 100 R251 100 R276 10 R276 10 I2C_SCL R252 100 R252 100 C273 C273 2,3,5 I2C_SDA 0.01u 0.01u R273 R273 L271 L271 4.7K 4.7K R275 R275 TU251 TU251 C271 C271 C272 C272 R271 R271 +33V 1000p 1000p 0.01u 0.01u Q271 Q271 2SC1674C...
  • Page 24 +12V J901 J901 +5V_MCU +3.3V_MCU U921 U921 POWER POWER L921 L921 R921 R921 KA78M05 KA78M05 +12V_IN VOUT F901 F901 120 OHM 120 OHM 33R0805 33R0805 C925 C925 C926 C926 3.3V 3.3V C922 C922 C921 C921 C923 C923 C924 C924 47uF/16V 47uF/16V 0.01u 0.01u...

  • Page 25: Exploded View

    12. Exploded View PARTS NAME Front Frame AU Screen AU Shield Borad LG Screen Whole Engine Loudhailer Shield Cover Rear Cover Bracket Key Board Bracket...

  • Page 26: List Of Parts

    13. List Of Parts Material Material PARTS NAME PARTS NAME Code Code 0094009774 Screen connecting board subassembly 0090101133 Front shield cover 0091801628 0090101041 Rear shield cover1 Screen connecting board 0090402004 0090805039 Stick-patch jack LCD Screen 0094300552 Screen connecting jack Rear shield cover2 0090101042 0090807076 Front frame subassembly...

  • Page 27: Trouble Shooting

    Trouble 1 Bright Indicator light Check Turn on, red turn to Alternate between TDA93XX blue , wait a red and blue power supply moment turn to red 3.3v Check waveform of Check U101 power Check Check 3 wires serial bus supply +8v TDA93XX D921,R921,...
  • Page 28 Trouble 4 Dark backlight CN551 Pin3,4>1.5v? Change the Check abnormal inverter Q561,Q551 Inverter Panel Change Change trouble trouble Q561,Q551 U401 Trouble 5 Black or white screen 3.3v or 5v or 12v from XS411 pin1,2,4 Check the TTL abnormal Check U541 on XS5011 signal Pin1,3 pin by oscilloscope...

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