Question about JVC AV-27530 27" TV

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VERTICAL AND HORINZONTAL

I have tv the vertical and horizontal are rolling together in what particular section have trouble... t.y

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Maybe your tv is set to PAL mode set it to NTSC, or else your tv is out of sync.check the jungle.

Posted on Oct 08, 2008

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Napalitan narin po jungle ic LG 21SA3RL-L4

Posted on Feb 25, 2015

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I have 2 lg repair the same trouble vertical horizontal rolling


Vertical or frame rolling indicates adjustment of the frame hold is required or perhaps there is a synchronisation fault.

Breaking of the picture in the horizontal plane is caused by the line hold requiring adjustment though the symptom can be connected with interior or exterior signal problems or perhaps a power supply fault, especially where both the line and frame are affected together.
It is probably a task for an engineer or at least someone with access to the servicing instructions.

Feb 25, 2015 | LG Standard (CRT) Televisions

1 Answer

There is a horizontal line in the mid


Hello

The vertical scan of your TV has failed. All picture tube type TVs have both horizontal and vertical scan sections to scan the picture on the secreen. When horizontal scan fails, you will see a vertical line at the middle of the screen, and if vertical scan fails, there will be a horizontal line through the middle of the screen. In your TV, the second stated has happened.
This may be due to an IC trouble or a voltage loss inside the printed circuit board of your TV. To rectify this fault you have to open your TV, and locate the vertical output section inside it. It is very easy to locate that section. There will be four wires goes from the deflection yoke; the coil fitted at the neck of the picture tube; out ot which, two will be thick and the other two will be thin. The thick wires are usually colour coded as red and blue. Colour coding may differ from set to set. Anyway you have to follow the tow thin wires, as they are carrying vertical scan signal to the yoke.
Following it, you will reach to a plug in point on the printed circuit board. Upside down the printed circuit board, and follow the track through which that wire connection goes, and finally you will reach to the vertical output section.
There may be transistors or IC used on that section. First check the voltage at the vertical output section. Voltage lose also may occur in this section. If it uses IC, check for any loose or bad solderings at the terminals of the IC. I advice you to resoder the suspected points by applying a little more solder, without shorting the terminals. In most cases this will solve the problem. If there is voltage, and there is no loose solderings and still the fault perists, replace the IC or transistors, whatever it may be, with same type and number.
If you want anymore asistance, fee free to contact me through Fixya. OK.

Dec 27, 2010 | Toshiba CF30F40 30" TV

1 Answer

Toshiba Model 53HX71: Bottom half of screen and sound is fine; top half of screen has collapsed to a horizontal line in the middle of the screen. Repairman I spoke to briefly said it probably won't be...


Hello
Your TV has vertcal scanning problem. All picture tube based TVs have, both vertical and horizontal scan to spread the picture to entire screen. When vertical scan section meets with a fault, the picture will collapse horizontally and fi horizontal scan section has a troubl, picture will collapse vertically. Your TV s fault , we technically say, to be vertical foldover. This is due to the vertical output section, a circuit part, inside the circuit board of your TV.
To rectify this fault you must open your TV. Unplugh it from the power socket, and open it. Locate the vertical output section, which is easy to do. Look at the deflection yoke, the coil fitted on the neck of the picture tube, and you will see four wires from it going to the main circuit board. Out of which, two will be thick, normally red and blue in colour, connected to the opposite direction on the deflection yoke, and the other two will be thin. follow the two thin wires, said later, and you will reach to a plug in point on the printed circuit board.
Before doing anything, just look at the soldering of that section carefully for any loose soldering, or bad soldering. Usually, the components in the vertical output section will get heated during working, and ahve a cahnce to get loose contacted soldering joints. Just resolder all the suspected points by applying a little more solder, and see the effect. If thi doesn't help, check the IC used in that section for trouble. Some capacitors will be there in this section, will get dried as aging, replace them first, as they are ver few in numbers, When replacing capacitors, note their polarity, as electrolytic capacitors have both positive and negative terminals like torch cells. Before replacing the vertical IC, replace all the capacitors, especially, two or three large capacitors on that section. Just do these and if you want any more assistance feel free to contact me through Fixya. OK

Dec 08, 2010 | Toshiba 27AF42 27" TV

1 Answer

Horinzontal white line with sound


vertical collapse. usually not to expensive to fix.

Jun 02, 2009 | Toshiba 32A33 32" TV

2 Answers

Philips TV (old) showing a horizontal line in center of screen


Check for the cracked solder joints on the IC or dried capacitors on the vertical side

Mar 28, 2009 | Standard (CRT) Televisions

1 Answer

Green lines


Due to vertical section failure horizontal line apprears. You did not mention about picture. Green horizontal line means with picture or without picture. With picture means there is some leakage. Without picture only singe horizontal line means vertical section totally not working. Particularly green horizontal line means maybe leads to jungle ic failure. Please mention your simptom clearly what you get and what you will not get both video and audio. It will be helpful to answer. Based on your question this is my small information.

May 24, 2008 | Sony KV-35S42 35" TV

3 Answers

Screen only showing single line of video in center.


hi there, is the single line horizontally or vertically? if horizontal line, you do have a vertical section problem, check some parts at vertical section, the vertical ic, the power source of vertical section ie diode & resistors. ty

Dec 26, 2007 | Zenith Z32X31D 32" TV

2 Answers

Horizontal roll on mitusbishi 35" tv


is this a horizontal black line going up or down? if yes, this sympton is caused by a trouble in the integrated circuit or in the vertical oscillator circuit. this symptons has 2 variations. one is the intermittent rolling of the picture. this referred to as the "loose vertical hold" the other variations is the continuous upward or downward rolling of the picture

Jan 15, 2007 | Mitsubishi CS-36509 TV

1 Answer

Picture has a horizontal row


this symptom is caused by a trouble in the integrated circuit of in the vertical oscillator circuit. try to look if your tv has a vertical hold control at the back or inside, if it does not have, u have a problem in the vertical oscillator circuit. by the way, its not the horizontal that u should concentrate into, its the vertical. coz this is a vertical sync problem.

Jan 12, 2007 | Konka K2001UM TV

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