Question about JVC AV-27D302 27" TV

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Orion TV model TV_798 sl (thin line no picture)

Hello, I have a thin white line across the centre of the TV screen. The sound is ok. I read about a simalar problem, someone suggested the vertical output IC. IS this the faulty part? If so where is it located. Please help.Thankyou.

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Re: orion TV model TV_798 sl (thin line no picture)

Problem is with the vertical output circuit. take it to a repair shop and have them fix it.

Posted on Aug 29, 2008

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Turn on TV, no picture but sound is ok, thin white line running across screen

You have a frame collapse problem. Line, EHT, power supply, video and sound stages are all functioning. Check frame output ic for dry joints, resolder all pins. HT supply for output ic's derived from line stage check for open circuit safety resistors around line output transformer, if you find any then frame output ic will also be suspect. WARNING Very high voltages exist around the line stage. Make cold tests with Ohm meter with set unpluged from mains supply.

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there is a poor or many poor solder joints in the vertical section of you tv, this is a simple repair for a technician. the set should not be used until this is fixed or this could damage other parts of the television.

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SAmsung has two white lines across screen with no picture

If the 2 white lines are in the centre of the screen it sounds like you have a fault called 'field collapse' . The 'x' or horizontal circuit on the tv deflects the beam across the screen which in your case is ok because the line runs across the screen ok. The 'y' or field circuit on the tv deflects the beam down the screen. Without a circuit diagram for your tv i cannot point to individual components.

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1 Answer

How do you fix a white horizontal line across top of Orion TV?

Hello eatkinson,

This denotes a problem with the vertical deflection circuit. This is more then likely the result of the vertical coupling capacitor failing. You will need the schematic diagram of the TV to find the capacitor in question. it is located between the vertical output stage and the vertical deflection winding of the yoke transformer. In addition check the continuity of the vertical winding of the yoke transformer this can cause the same problem. In any event the problem is that the vertical deflection signal is not getting to the yoke transformer or the yoke transformer is malfunctioning.

I hope this helps,

Thank you,


Apr 08, 2009 | Orion1934 19" TV

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20" orion tv

Hello mel2003,

This problem is caused by the loss of vertical deflection. Either the vertical output section of your TV or the vertical coupling capacitor has completely failed. In any event you will have to have a TV technician fix this set, BTW I hope you have not been playing the TV with the line on the screen this will burn the TV screen.

I hope this helps
Thank you,

Jun 16, 2008 | Orion1934 19" TV

2 Answers

TV has a thin horizontal line across the screen

intermintence in vertical IC deflection its a job for experienced tech need to look for that circuit and do fine job resolding that IC

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Samsung TV


Just read your list of problems The first fault (Diagonal lines & picture collapse from left & right) Sounded like either A poor connection or dry solder joint either on scan coils or scan coil plug / socket on main pcb.
If this were the case the engineer that called out should have spotted this & sorted it very easily. But you say it is still the same so what did he do ?
Did he give you a reciept with break down of what he did ? If yes please post it here for me to go over.

The sound problem you describe has thrown me a little so could you please post your tv model number on this page so I can see if this is a stock fault.

The static shocks you are getting is relatively normal & not a problem unless you are getting them off of speaker grilles or even tv casing if it is silver in colour.
I am UK based & have access to samsung technical but I will need your tv model number.


Oct 30, 2007 | Standard (CRT) Televisions

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LG colour TV RI32CZ10RX problem with picture

My LG tv has suddenly got a problem with the picture. Whilst watching the tv with no problems at all, the picture was suddenly reduced to a thin vertical line down the centre of the screen and an awful smell seemed to come from the tv There is a short ckt in your tv in horl. section. 1 isolate power from horizontal section. 2 check for normal output from power supply. 3 check parts in horl output section a hor.output transistor b diode & cap in h/output trnsformerckt. c check for print. d if all are ok check for eht transformer. e if every thing becomes then reconnect hor output section supply. f put on the set.

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1 Answer

Red Line across Screen

sounds like you have a vertical sweep problem. Where the fault lies cpuld be the vertical output IC the verticle b+ feed, could be the capacitors in the vertical circuit?? Your gonna need to troubleshoot thr vrtical circuit if your not a tech thin my advise is to take the set to a pro for sn est. Good Luck

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