White Screen w/ White Lines, Sound On, Turns off after 2 or 3 secs.
I have a 9 year-old Phillips Magnavox 27". I just bragged on it earlier in the week.
When turned on this morning, the screen was white but the sound (from Satellite) was fine. After 2 or 3 seconds, it turned itself off (screen shows a prim of sort in the middle as it shuts off).
I let it sit until tonight and got the same thing. I unplugged the power supply and cable input and re-plugged them. No dice.
As you can tell, I'm not that technical. Any ideas? Unless it is something really easy, I'll have to get a repair man. If you do have any ideas, how much could it set me back? I need to squeeze another year or so out of this tv.
Thanks for your help. I do appreciate it.
Re: White Screen w/ White Lines, Sound On, Turns off...
If you mean thin white lines, this is is an indication of a problem in the Horizontal Drive ckt. most likely the Damper Diode has opened or shorted, this would cause the visual symptom and then the set would shut down, unfortunately this is a problem best left to a qualified technician to repair, hope this helps.
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Chroma IC should be suspected. Visit this site for more details.Type in the site name "Electro-help" either to Google or Yahoo search box [not in the address bar of your browser], and click search.It is an electronic equipments service help site.All details you want are there.Note the position of hyphen in between words in site name, when you type it in.The site will appear as it is in web; subtitled as electronics equipments' repair help
This denotes a problem called blooming the horizontal lines you see are called retrace lines this is caused by the increase in anode voltage which could be caused by an increase in HV section current which trips the overcurrent protection dircuit and turns the TV off.If you do not have electronics experience I would suggest taking the set to a TV repair shop.