So you finally manage to fix a TV upto some extend.

What did you do after the point you said that the heatsink heats up and it still has the red color bar.
As I recall we stopped at the LVDS drive part

 

well. i replaced some capacitors that were above 2 point something however messing up the pads as you saw earlier.

one capacitor was at 14 esr ohms near the heat sink. i used the heat gun to heat up the DSP to maybe reflow any bad solder joints. Heated up the chip in the t-con board too for a little. when using the gun I used the lowest setting on the gun and from far away since gun's lowest setting is 400°C.

also. i switched the lvds cable direction. even now if i switch it i get the grey screen. then if i switch it the other way it works like in the video. so maybe that was the problem the whole time. i don't know. thought i did try changing the lvds cable the other way in the past.

 

The re flow might have worked, that is what I would have done
How hot does the heatsink gets.

Can you place ur hand on it for a while or not, while The TV is running

 

yes i can. will check to see for how long later if want. not home.

 

yes. i can place my hand on it for awhile. been 5 minutes and heatsink is warm but not hot.

 

IF the sink is just warm then you do not need a fan.

 

also, that is without the fan. because the voltage regulator you had me make tied to the two capacitors accidently shorted (wires touched). so i just took the fan out.

so the only problem left is the switching transistor?

 

I have to go through that area to find out what to do. In the meantime Check that area for shorted transistor or open resistor or faulty diodes.

I am preparing to leave in two days time to North for work, I will be back at the end of july. After that I can go through those posts and tell you what to do.

Get to work and see what u can find out but don't mess up. Finding out on ur own is far batter than any one telling u what to do.