Question about Standard (CRT) Televisions

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My tv I have had my tv for about 2 1/2 yrs or so. We haven't had any problems until now. Just out of the blue the tv came on by its self. We would turn it off, it would come right back on. So we unplugged it, it was 2 in the morning or a little after. We had to get up early the next morning. Now the tv remote will not work at all. The front of the tv-the power button will not turn on or off. The channel or volumne button turns it on and off. The tv when you have it on you turn the channel it cuts off. You have to turn it back on. then find the channel and keep doing the same thang. On, channel up, the tv cuts off, channel up the tv cuts off. What is wrong, I don't have the money to get it repaired. Its an arc why anit it working they are suppose to be a good tv.

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My tv will not turn on. We had been away for a week and no power interuption at home. We have unpluged the tv for short and long periods of time . We we attempt to turn the power on it cuts off by itself.

Posted on Oct 12, 2008

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Hooking my Dishnet work cable to TV modele 27R411T


tuner might be out, try video 1 with the rca cables

http://www.shopjimmy.com/

Sep 03, 2012 | RCA 27R411T 27" TV

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Sunbrite tv 32 " 2 yrs old. Blue light comes on ,


Hello Joe Harlinski,
Welcome, and thank you for using FixYa!
To answer your question: Your television will have to be checked for bad (cold) soldier joints on the power supply board, as well as bad capacitors and resistors.A local Television Repair Professional should be able to handle this for you. If the board cannot be repaired, it can be replaced for roughly $75.00 to $95.00 plus the labor to install it.
Have a great day!

Nov 10, 2011 | SunBriteTV Standard (CRT) Televisions

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My 27" Hitachi TV is about 14-15 yrs. Last night


could be alot of things but it comes on by hitting it makes me think either a bad relay or solder connection on the pcb board

Jan 29, 2011 | Sony FD Trinitron WEGA KV-36FS120 36" TV

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I have a 6 year old(nov 04) Sony KV-30HS420 that turns off all by itself. The screen goes to green and the picture fades to black. The sound will keep playing for a few seconds then the TV will turn itself...


If the screen goes rather bright green it is one of two things:

1. It is possible it is a shorted green gun in the picture tube, there are three of them, red, green and blue guns in neck of the tube.

2. The other possible reason is there is a problem on the small circuit board at the end of the picture tube, this model should use three IC chips, one for each red, green and blue.

Being intermittent makes it hard to tell but ask the shop if they tried the self check this set should have. With the set turned off use the original Sony remote and hit Display, 5, vol down, and power.

If the set has a self check (it should) a box will appear on the screen with up to five items with a zero to the right of each, items will be like AKB, OVP, etc, and if any have something other than a zero to the right it pinpoints what happened.

Sets with this feature record each event where something goes wrong, ANYTHING other than a 0 indicates what failure was detected.

If I was to make a guess there will be a number next to AKB, which is Anti-Kine Bias, this means the picture tube or something on the board at the end of it drew too much current and the set's shut down circuit turned the set off.

I actually fixed one of these where both the blue and red IC chips on that board were bad, needless to say, I replaced all three of them.

Any good shop would know about the self check and even if the set did not shut down in the shop the self check would point to the area where the problem is.

Let me know if you need more help or find a error code.


REGARDS, SD TECH

Dec 01, 2010 | Sony FD Trinitron WEGA KV-30HS420 30" TV

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Only yellow,blue & green colors, occas hint of red. What are correct settings? middle of gauge,


sounds like degausing circuits bad. unplug for couple of hours. if this doesnt work try waving a heavy magnet in front of tv about 2-3 inches from screen.

Jun 01, 2009 | Philips Magnavox MT1905B 19" TV

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TV Turning on and off by its self


You have problems with a condenser that allow the power supply to maintan an acceptable level of voltage in order to keep the TV on. take to a tech to be fixed. unfortunatelly, this problem needs a tech to take measures in the circuitry to find the component that causes the problem.

Nov 06, 2008 | Philips Magnavox TS3260C 32" TV

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Powers on by itself


TV worked FINE for the past 2 yrs---this morning we woke up and the screen is totally BLACK! No sound..nothing. REmote doesn't do anything to the TV. Red light says ON unless we unplug it. Remote won't turn off the TV.
Any advise? Picture tube??
Worked great w/out any problems until we woke up today!

Thanks,
Tina

Jun 01, 2008 | RCA 32V420T 32" TV

1 Answer

Blue screen


this problem is due to blue video circuit. 1 Please check supply to blue video ckt. 2 check crt base for loose. 3 check loose contact & parts related to blue cathode. 4 blue signal coming from processor to blue video. 5 processor it self. 6 at last if tv is very old than check crt also.(possibility is rear) hope this will help.

Oct 03, 2007 | Sharp 32C-240 32" TV

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