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Ur tv it is taken aparts wright now?Yes.Plug in ur tv to see the problems and take the hard end handle of the screw driver and taps around the vertical deflection ic for cold soldering joints,will require resoldering the ic,if the vertical hold flickers or bounced back to normal.No bounce back vertical hold check all the sorrouding capacitors transistors resistors for dead components parts to be replaced,if all the sorrouding parts are good,than that vertical deflection ic it self it is dead and require replacing.
The problelm is a
defective vertical deflection system. Could be the amplifier, vertical
output driver or whole printed board that supports the vertical
deflection activity. It is considered to be a serious failure. The cost of repair will be around $200 to $300.
I think you are describing 'no vertical deflection.'
If all you have on the screen is a single horizontal line, the vertical deflection circuit (or IC) has died.
Unless you have service documentation on hand, I can't give a part number to replace but this is typically not an expensive failure and if the set was OK before, it is worth having repaired.
If you have a straight horizontal line in the middle of the screen the vertical deflection has gone out. Itll need to be repaired, the vertical deflection IC is bad. Hope this helps.
If the line is horizontal then it could be a problem in your vertical deflection section, if the line is vertical then the problem is in your horizontal deflection section. Now for a little more detail.
If Horizontal line is present the vertical section of the yoke transformer is nit responding to current flowing through it due to being open, or the vertical coupling capacitor is open, or even the vertical drive transistor might be defective.
If Vertical line is present the horizontal section of the yoke transformer might be bad. Now this gets kind is easy in a way, because the yoke would be the sole cause of your problem here (maybe there is some circuitry doing some horizontal coupling check that to) because the horizontal section controls other functions that would also respond if this were a horizontal drive issue. In any event these problems should be checked by a qualified TV technician, I would suggest that you take the TV to a repair shop to have it worked on.
It sounds like a vertical deflection problem. You mentioned you had a white HORIZONTAL LINE in the middle of the screen. If this line runs from left to right across the screen it's in Verticla deflection. If it runs from top to bottom, it's in Horizontal deflection. I am assuming the problem is a Vertical deflaecion problem. The repairs necessary are most likley to replace the vertical capacitors or the verticla deflection chip.
Good Luck
Ed
NC Electronic Mills, Wyo USA
From your description of the problem, there seems to be a Cold solder in the Vertical Oscillator or Deflection Coil circuits. If you know Solid State electronics, and are good with a soldering Iron, sure u can do this yourself. U
gotta trace the Vertical section components and locate the cold solder.
In most cases it will be a loose connector from the Deflection coil to
the main PCB.Also check for the soldering of the Vertical output IC.
yes it can still be fixed! the pop sound you've heard maybe came from a blown capacitor in the vertical deflection circuits. this symptom, sometimes called the tube light effect, it is characterised by a bright thin horizontal line across the middle of the screen. this symptom is caused by a breakdown in the vertical deflection circuit. hence maybe the trouble maybe in the vertical oscillator, amplifier or output circuits. but if all i have said is not clear to you, better bring it to a qualified tv technician. good luck!
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