i was watching dvd movie, when suddenly the picture in my colored tv become a thin line at the center, i can hear the sound. the brand of my tv is TOSHIBA, model no.1930XM. i can`t get a technician now bcoz it`s raining outside. any help please?
2007-05-26 02:27:44 · 9 answers · asked by tzartzar 2 in Consumer Electronics ➔ TVs
Well, two folks have it right. It's true, your vertical deflection circuit has taken a dive. I haven't seen a service switch on the back of a TV since the 1978 models, though. It has nothing to do with horizontal deflection, as one person says. If the horizontal had failed, there would be no illumination at all, as the high voltage that lights up the tube is derived from the horizontal output circuit. Yes, it will have to be serviced by a tech, as there are no user serviceable parts inside.
2007-05-26 03:17:08 · answer #1 · answered by Mr. Peachy® 7 · 3⤊ 0⤋
When the picture collapses to the center in a thin line across the screen it is called Short Vertical Sweep. There are either bad solder connections in the vertical circuitry or there are bad parts (capacitor etc) in the vertical circuitry.
You really need to have it looked at by a repair tech. This is not a job for the average user. All the picture controls are now done by service menus the set has built into them. After the parts are replaced/resoldered the tech will set the color, contrast, and focus using those controls.
2007-05-26 11:04:18 · answer #2 · answered by panagirl69 3 · 1⤊ 0⤋
Been a long time I worked on a TV. If, I remember correct the Vertical has gone out. Look on the back of the TV sometimes you will find some adjustments and one will be Vert. it work just like a computer monitor. You may try turning it and see if you get a reaction on the screen. But, odds are it something in the Vertical Circuit. It may be just a small board and easy to replace if you know what board it is.
I did a little reading. If, you are handy with a Mutimeter and possiable Soldering Iron and you not eletrocute yourself. If there is a VERT. control on back, then odds are it go to your vertical Board. :-p
Some have a fuse call a "Pico Fuse" it look like it some type of yellow resistor. You can use a Meter on the ohm setting to check if it blown. I found you a picture.
http://www.alliedelec.com/Search/ProductDetail.asp?SKU=845-0091&desc=473001&R=845%2D0091&sid=46577880263AE17F#
Below the pic it tells a little about this type fuse.
2007-05-26 09:39:43 · answer #3 · answered by Snaglefritz 7 · 0⤊ 2⤋
If the thin line is horizontal, you have lost vertical deflection. Check on the back of the tv and see if there is a "service switch". If there is, switch it back and forth a couple times. This switch was only one older sets, so you may not see one. If there isn't one, then you're out of luck, as there is nothing that a non technician can do to repair except the "magic touch repair". Whack the TV a good one on the side with the flat of your hand. Some times it helps the bad contact...make contact. Good luck.
2007-05-26 09:36:57 · answer #4 · answered by skwonripken 6 · 1⤊ 2⤋
By the sound of it your tube has gone - you could try adjusting the vertical hold but it sounds like the voltage on the X plates has been lost
If thats the case - buy a new TV
Oh - a good technician doesn't mind a bit of rain lol
2007-05-26 10:27:16 · answer #5 · answered by hunkytim 2 · 0⤊ 2⤋
This is aTV Hunkeytim not a crow . Last time I looked TV CRTs did not have x-plates !! ( nor Y plates )
Cheers Pete
2007-05-28 04:05:12 · answer #6 · answered by Realist 2006 6 · 0⤊ 0⤋
probably just a line of "dead pixels"
I dont know if you have a CRT monitor/TV or an LCD.
a line of dead pixels happens on TFT/LCD screens. Not sure if its a normal "large back tv"
hope that helps
necki
2007-05-26 09:31:54 · answer #7 · answered by Necki 2 · 0⤊ 2⤋
Your TV has horizon amp. problem. It's time to take it to a repair shop. There is nothing you can do about that.
H. Nguyen
2007-05-26 09:41:24 · answer #8 · answered by hvn728 1 · 0⤊ 3⤋
maybe
2007-05-26 11:01:51 · answer #9 · answered by Anonymous · 0⤊ 3⤋