black block at the bottom of the screen tv

How to overcome images a height less a few inches to below,must be patient.
I have ever experienced is very trivial but takes a very long time.
usually we are focused on vertical ic
Though not necessarily damage the IC pd.
Sometimes we do not want to bother directly replace the ic.
If we want it fast, we replace all the capacitors in the vertical circuit area.
Then we try first, if there is still no progress, measure your resistor values ​​may be changed (stretchy)
If still experiencing difficulties, measuring working voltage ic.
make sure the 24v voltage is not too much or too less.
Voltage 12v or 8V (depending on what its brand tv) make sure no less.
because it can also lead to tv screen less high.

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