Question about Toshiba 30HF85 30" TV

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Vertical Deflection I have a show Tv it only show a horizontal line in the middle its model number is XT 3785 what could be the problem and if anyone know how I could get a data sheet for this please tell how I try but i have not found anything

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Check soldier connections on vertical i.c.

Posted on Mar 17, 2008

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What is the cause of my 14inch videocon crt tv appears only a single vertical line in the middle


The image on a CRT TV is produced by a beam of electrons which is controlled by a magnetic field to move the beam top to bottom and left to right. A single line suggests that the vertical deflection is working but not the horizontal deflection (left to right). There are a number of components associated with this and requires a competent TV repair engineer to fix. Better to to buy a new TV!

Jul 13, 2016 | Televison & Video

1 Answer

Tv screen is black except for 1 horizontal line of color


The line is there because the vertical deflection unit - the one that spreads that line across the entire screen to form the image - has failed. Replacing it is a job for a professional, or at least an experienced amateur, and the parts will be quite difficult to find for such an old tv . 

May 28, 2010 | Panasonic CT-36DV60 36" TV

2 Answers

RCA 27 in has white horizontal line going through the middle


this symptons is caused by a breakdown in the vertical deflection circuit. hence, the trouble may be in the vertical oscillator, amplifier or output circuit. in most modern tv the vertical ic is usually composed of these said circuit inside. the ic have many pins, standing on a heat sink and smaller in size. try to check also the capacitors surrounding it. sometimes leaky capacitor may cause this problem. good luck!

Aug 16, 2009 | RCA TruFlat 27F520T 27" TV

1 Answer

Screen only shows horizontal line


if line is left to right in middle of screen the problem is in the Vertical deflection circuit---could be either a soldering problem with the vertical output ic or a bad part in that circuit. If this has been helpful please give me a vote.

Aug 08, 2009 | Hitachi 32CX39B 32" TV

2 Answers

H line problem


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.

Jul 05, 2009 | Sansui 27" TV

1 Answer

Horizontal Light Only


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.

Dec 12, 2008 | JVC AV-27020 TV

1 Answer

Tv not showing a picture


Hello e26pitts,

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.

I hope this helps
Thank you,
Shuttle83

Mar 21, 2008 | Televison & Video

1 Answer

Vertical Deflection


check soldier connections on vertical i.c.

Mar 13, 2008 | Sanyo DS31590 31" TV

1 Answer

Jvc av-29ts2ek


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

Jan 05, 2008 | JVC TM-2703SU 27" TV

1 Answer

Nopicture


No vertical deflection. Vertical output IC, caps.

Nov 25, 2007 | Televison & Video

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