Lg 563n horizontal driver transistor overheats and get shorted after a few hours or in a couple of days

The horizontal output transistor that drives the flyback transformer overheats now. There might be other reasons too for this fault. If the flyback transformer has any internal winding short, this transistor will overheat.
Just replace the horizontal output transistor. Check its heat. If the newly replaced transistor too overheats, replace the flyback transformer.

hi,
You have to check the pin control transistor in the horizontal section. It will be fitted on the same heatsik on which the horizontal output transistor is fitted.It will be a small transistor as compaired to the horizontal driver. Also you have to check the three mosfets in this section used to control the width.
ok

The only thing left is the horizontal driver transformer and horizontal driver transistor, resolder the transformer and remove the transistor and check for leakage. If none of these remedy the situation there may be a short in the transformer, or the other possibility is the timing capacitors one or two may be open or low in value, if you have changed these that would rule it out.

Hello
You just replace the freewheeling capacitor, normally come up to a value of 5600pf 2000V or so, connected to the collector of the horizontal output transistor, fitted very close to the collector lead. Replace the yoke return capacitor, 0.33uf or so also. Usually samsung sets use no heatsink for the horizontal output transistor. You just put a small heatsink to it and check. If it doesn't overheat, you can remove it later.
You can suspect the deflection yoke also for shorted winding. To check this. pull out the CRT base board out of the neck of the picture tube, place it where it doesn't get short circuited, and unplug the deflection yoke connection from the main board, and switch on the set. See whether the transistor overheats now. If it doesn't overheat, suspect the deflection yoke for shorted turns of winding inside it. Till the transistor overheats, suspect the LOT.
NOTE: Never switch on the set while unpluging the deflection yoke connection plug from the circuit board, without dismandling the CRT base board. CRT may get damaged, with a black burned spot inside the center of the screen.
OK.

This is Monitor Problem.you need an monitor service engineer.the problem is in Horizontal Deflection yoke/Horizontal output transistor section.

I HAVE LG CB563G MODAL15'' MONITOR HORIZOLY EXEED SCREEN I CANOT ADJEST WHEN ON MONITOR 1.1/2 HOUR IN
H/S C5803 TRASITOR FILES PLEASE HALP

1, cheak the output voltages. filament voltage.
Horizontal transistor.
2. if filament voltage is not comming ,change the filament supply diode, capacitor.

3. incrize the brightnes ( LOT Screen )
4, dry points in neck board.

seems there are shorted components inside your monitor.
if you have experience in troubleshooting, try testing for shorted components. diodes, transistors, bboth at primary and secondary part.
if you don't have experience better have it on a repair shop.

may be the problem with the output transistor

LG Studioworks 563N Monitor horizontal width is exceeding out of screen and not able to adjust it along with pincushion through menu. IRF S630A Transistor replaced, no effect. Pl. help.