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Coby TFTV3225S2 Service Manual

Television set with 32” 16:9 tft lcd panel

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Service Manual
Service Manual
Pravin Mevada
TELEVISION SET
WITH 32" 16:9 TFT LCD PANEL
Model : TFTV3225S2
Copyright 2010 COBY Electronics Co., Ltd.
All Right Reserved
Sep. 30th, 2010 (Version 1.3)
Page 1 / 21

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Summary of Contents for Coby TFTV3225S2

  • Page 1 Service Manual Service Manual Pravin Mevada TELEVISION SET WITH 32” 16:9 TFT LCD PANEL Model : TFTV3225S2 Copyright 2010 COBY Electronics Co., Ltd. All Right Reserved Sep. 30th, 2010 (Version 1.3) Page 1 / 21...
  • Page 2: Table Of Contents

    Service Manual CONTENTS Notes For Installation………………………………………………………………..3 Specifications…………………………………………………………………………4 Block Diagram………………………………………………………………...……...7 PCB Mechanical Dimension………………………………………………………..8 Board Connectors Pin Assignment……………………………………………...9 Exploded View………………………………………………………………….……13 Schematic…………………………………………………………………………….14 Trouble Shooting Flow Chart……………………………………………………..19 Sep. 30th, 2010 (Version 1.3) Page 2 / 21...
  • Page 3: Notes For Installation

    Service Manual Notes For Installation This television set with 32’’ FT LCD panel, is designed mainly for receiving ATSC/NTSC system TV source,or other sources such as DVD player and personal computer(TFDVD3295S2 Model), via all diffident kinds of cables. This section provides some guidelines for assembly and preparation of a finished display solution.
  • Page 4: Specifications

    Service Manual Specification Electrical Specification a. Power Consumption: (Include Inverter and LCD Panel) Operation mode Power Consumption : 32’’ 150 Watt(Max) Audio AMP : 9 +/-1Watt (Reference : Speaker 9W×2) Power Saving mode (STB) : ≦1 Watt b. Power Supply Input for Main board : +12/5Vdc Output for LCD Panel :32’’...
  • Page 5 Service Manual Television Part Item Specification TV SYSTEM ATSC/NTSC CAPTION CLOSED Parental Control PIP/POP TV SYSTEM STEREO/MONO SOUND OUTPUT 9W X 2 SOUND EFFECT EXT. COMPONENT 1 Y/Pb/Pr INPUT TERMINAL (YPbPr) VIDEO, Y/C INPUT AV IN AUDIO L/R INPUT PHONES TUNER DIGITAL+Analog tuner(TCL) VGA(Analog RGB) INPUT...
  • Page 6 Service Manual Horizontal rate Pixel Clock Rate Standard Format Total Pixels x Total Lines (KHz) (MHz) 720 x 400p 70 Hz 900 x 449 31.5 28.0 640 x 480p 60 Hz 800 x525 31.5 25.2 640 x 480p 67Hz 864 x 525 35.0 30.0 640 x 480p 72 Hz...
  • Page 7: Block Diagram

    Note: The TFTV MODEL is supplied by Coby, you can contact with COBY service department Sep. 30th, 2010 (Version 1.3) Page 7 / 21...
  • Page 8: Pcb Mechanical Dimension

    Service Manual PCB Mechanical Dimension TV main board: a. TOP Pattern: Key & IR Board Component Key Pattern b. IR Pattern Sep. 30th, 2010 (Version 1.3) Page 8 / 21...
  • Page 9: Board Connectors Pin Assignment

    Service Manual Board Connectors Pin Assignment a. CON24: 40 Pin define for Connector to Panel (NC 36 or 40 PIN, On Main Board): LCD panel for example:SAMSUNG 32” panel Description PIN No. Description RXE2+ RXE2- RX00+ RXEC+ RX00- RXEC- RX01+ RXE3+ RX01- RXE3-...
  • Page 10 Service Manual c. CON37/38: Connector from Main Board to Left/right Speaker (4PIN, On Main Board) Symbol Description CON37 1 Driving the Right Speaker(+) CON37 2 Driving the Right Speaker(-) CON38 1 Driving the Left Speaker(-) CON38 2 CON38 3 Driving the Left Speaker(+) d.
  • Page 11 Service Manual e. CON10/11: Connector of HDMI (19pin) Input f. CON17: Connector of Component-AV Symbol Description VIDEO Input CVBS Right Channel Audio Input Side AV Right Channel Audio Input Side AV Left Channel Audio Input g. CON39: Connector of Component-S-Video h.
  • Page 12 Service Manual i. CON 2: Connector of Y/Pb/Pr-RL / Y2/Pb2/Pr2-RL j. CON 5: Connector of DVD Y/Pb/Pr-RL(for TVDVD3295 model) Symbol Description Ground DVD R DVD L Ground DVD Y/Pb/Pr DVD Y/Pb/Pr DVD Y/Pb/Pr Ground Sep. 30th, 2010 (Version 1.3) Page 12 / 21...
  • Page 13: Exploded View

    Service Manual Exploded View Sep. 30th, 2010 (Version 1.3) Page 13 / 21...
  • Page 14: Schematic

    Service Manual Schematic Sep. 30th, 2010 (Version 1.3) Page 14 / 21...
  • Page 15 Service Manual Sep. 30th, 2010 (Version 1.3) Page 15 / 21...
  • Page 16 Service Manual Sep. 30th, 2010 (Version 1.3) Page 16 / 21...
  • Page 17 Service Manual Sep. 30th, 2010 (Version 1.3) Page 17 / 21...
  • Page 18 Service Manual Sep. 30th, 2010 (Version 1.3) Page 18 / 21...
  • Page 19: Trouble Shooting Flow Chart

    Service Manual Trouble Shooting Flow Chart Step 1 LED LIGHT ON? Check the main board CON LED brightness 33 PIN SAR0 SAR1 and IR variations Check IR/LED SAR0 Low? board high Check Inverter Power of LCD Panel, OK? Sep. 30th, 2010 (Version 1.3) Page 19 / 21...
  • Page 20 Service Manual CON-PIN4 High Change main Board (See Panel SPEC) Change main Board Change main Board Step 2 Change Main Board Sep. 30th, 2010 (Version 1.3) Page 20 / 21...
  • Page 21 Service Manual Step 3 Check Main board CON37/CON38 Change Main Board or U202 Sep. 30th, 2010 (Version 1.3) Page 21 / 21...