BBK LT2004S Service Manual
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BBK LT2004S Service Manual

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LT2004S

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Summary of Contents for BBK LT2004S

  • Page 1 Service manual LT2004S...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS 1. Precautions and Safety Notices ································· 1 2. S p e c i f i c a t i o n · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 2 3.

  • Page 3: Precautions And Safety Notices

    1. Precautions and Safety Notices Prior to using this service manual,please ensure that you have carefully followed all the procedures outlined in the user's manual for this product. (1) Read all of these instructions. (2) Save these instructions. (3) Follow all warnings and instructions a marked on the product. (4) Unplug this product from the wall outlet before cleaning.Do not use liquid cleaners or aerosol cleaners, use a damp cloth for cleaning.

  • Page 4: Specification

    2. Specification DK209 panel specification: Item Specifications Display pixels 1400 (H) x1050 (V) pixels ( 1 pixel = 1 RGB cells ) Active Area 408.24mm (H) x 306.18mm (V) Pixel Pitch 0.292mm (H) x 0.292mm (V) Bezel opening 413 mm(H)x311 mm(V) Display Colors 16.7M Pixel Arrangement...
  • Page 5 YPbPr Component 480i, 576i, 480p, RCAx3+RCAx2 VIDEO4 (YPbPr) (Y, Pb/Cb, Pr/Cr) 576p, 720p, 1080i (Red, White) + L/R Audio VGA IN+ PC AUDIO Analog RGB VGA 15 Pin VIDEO5（VGA IN） AC IN/Power AC Power IN AC 100~240V YC14 AC IN Switch Note: A.
  • Page 6 1. TMDS Data 2+ 9. TMDS Data 0- 17. CEC/GND 2. TMDS Data 2 shield 10. Clock + 18. +5V Power 3. TMDS Data 2- 11. Clock shield 19. Hot Plug Detect 4. TMDS Data 1+ 12. Clock - 5. TMDS Data 1 shield 13.
  • Page 7 Frequency Fh = 31~80 kHz Fv = 56~76 Hz Maximum Pixel Clock 135 MHz DDC 1/2B Compliant with Revision 1.0 Connector HDMI x 1 Format R, G, B Analog Level/Impedance 0.7Vp-p / 75Ω DDC 1/2B Compliant with Revision 1.0 Sync H/V separate 3V TTL level / 1kΩ...
  • Page 8 SVGA 800x600 46.9 49.5 1024x768 48.36 65.0 1024x768 56.47 1024x768 60.02 78.75 SXGA 1280x1024 Video & S-Video AV Timing V FREQ H FREQ STANDARD RESOLUTION NTSC 15.734 12.65 PAL(B,G,H,D,I) 15.625 14.50 SECAM 15.625 14.50 4.43NTSC 15.734 12.65 HDTV/Component AV Timing SDTV 480p 720x480 31.461...

  • Page 9: Front Panel Function Control Description

    3. Front Panel Function Control Description Operation, Adjust and Programming...
  • Page 12 The operation of each OSD controls is described as following table: Option Description User Press / to change the Picture Mode to be User, Vivid, Game Picture（not Movie support VGA） Game, Sport, and Movie Vivid Sport Press / to adjust the Brightness from 0 to 100 Brightness Press /...
  • Page 13 Reset Recall factory setting. Start auto search and auto process Press / to adjust the Fine Tune from -50 to 50 Fine tune Add/Erase Allow you to add/remove channels. TV setup Channel Name Edit the channel name. (Europe only) Channel Swap Swap the channel location .

  • Page 14: Adjusting Procedure

    4. Adjusting Procedure ITEM Equipments Requirements Procedure and SPEC ‧ Select SOURCE then choose VGA ‧ Enter the factory area Color VG828/Croma2327 ‧ Select Calibration Temp.Adustment 1280*800/60 all white Chroma 7120 ‧ Enter Color Temp. to User balance White balance (untouchable) ‧...
  • Page 15  Each Mode can display normally. If there is a specific Mode that is not appropriate after switch, press Auto Adjust will to VGA INPUT automatically adjust appropriate VGA Cable screen.  Confirm PC can automated identify the hd155tpLCD NO. ...
  • Page 16  Pattern Generator Selects SOURCE menu  Audio source output Enterthe SOUND adjustment Any Pattern .SOUND mode item. External connect Left/Right speaker (2.5/8ohm)  Press ▲/▼ to set audio volume DVD/VCD plays  music or DVD disc a. Volume Check if the action is normal. ...

  • Page 17: Trouble Shooting Flow Chart

    5. Trouble Shooting Flow Chart STEP 1. No Display ( Black ) Change AC Socket Check AC LED ON ? Fuse or power board Socket Check LCD TV Push the power Video& Audio ON/OFF switch Function Check the A/D board tuner U16-Pin3 LED Color change ?
  • Page 18 U16-PIN5 Check the connection Active low(Se of Signal cable Change AD Board Panel SPEC.) ? Display ? Change the LCD Panel Change AD Board Check Video& Di s pl a y ? Audio Function Check Video& Audio Function Change AD Board...
  • Page 19 STEP 2. Check Video& Audio Function No TV,VIDEO and VGA Check Picture Video& Audio Function Change AD Board STEP 3. No Audio Check Check A/D board Video& Check Audio Speaker Function Change AD Change Speaker Board or U2...

  • Page 21: Exploded Diagram And Spare Parts List

    6. Exploded Diagram and Spare Parts List...

  • Page 22: B L O C K D I A G R A

    7. Block Diagram U13 SCART AUDIO HDMI/DVI PANEL HDMI 1440*900 RGB/Audio L/R 1400*1050 Composite/Audio L/R S-video/Audio L/R Audio amp MST97885LD/96885LD S-video Compoment/Audio L/R YPbPr VIDEO/AUDIO SCART Earphone Composite /SIF...

  • Page 23: S Chem Ati C D I Agr

    8. Schematic Diagram...

  • Page 34: P C B Layout D I Agr Am S

    9. PCB Layout Diagram Keypad Board (Component Side Top) Keypad Board (Component Side Bottom) IR/LED Board (Component Side Top) IR/LED Board (Component Side Bottom)
  • Page 35 Tuner Board...
  • Page 36 Main Board (Component Side Top)
  • Page 37 Main Board (Component Side buttom)

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