T-Cons

HOW TO REPLACE A FAULTY T'CON BOARD TO LCD TELEVISIONS

 

Part -1

     What is T'Con board.  This is the board that controls the pixels
in an LCD television.  It is connected between main digital board, and
LCD panel.  Fault to this board is a common problem to all brands of lCD
TVs.  

     For a Sony KDL52XBR5, if its stand by light blinks 5 times, then
a pause, again blinks 5 imes, means T'Con error.  The T'Con board is
attached to the LCD panel and is included with a  new LCD panel along
with the inverter board.  The first check to do is, check the
connections of flat cables to them. See the picture of some of flat
cables connected to T'Con board.

     How to make sure that the T'Con board is faulty.  So many
strange screens will be displayed, if T'Con board is faulty.  Here are
pictures of some of them. 



Magic How to Remove LCD Screen Lines

In most cases TV may show other symptoms too. If T'Con boards'
processor IC gets direct shorted, it will apply a more load to TVs power
supply section, and in some sets the technician might go before it.
Check all the connections to both end of each ribbon cable connected to
this board.  Normally, these boards are not repairable, except for some
capacitors or SMD type fuses can.  How a T'Con board look like.  This is
the picture of a typical T'Con board.  The shape and appearance to this
board may differ to different TVs.

For Sony KDL32BX300, six blinks, pause, six blinks indicates a back
light error and location is on the LCD panel. Not with T'Con board. The
LCD panel includes the "Inverter MT board" and T'Con control MT board.  
 So different brands of televisions will show different blinking codes.
 The technician must fully aware of these blinking codes. 

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