Question about RCA F27450 27" TV
My tv comes on, the power light comes on, but it won't stay on, it goes off by itself a few seconds later. Is there a solution to this?
Mitsubishi ws55511 wont stay on. tried all the reset stuff.nothing works. green light comes on for two seconds then shuts itself off
Posted on Oct 13, 2008
When it shuts off. Try doing what's called a self-diagnostic test. As soon as the television shuts try these steps. Pressing on the front panel's ?INPUT? and ?MENU? buttons at the same time, and holding for 5 seconds, activates the Self Diagnostic Code Mode. The LED flashes denoting a two digit Error Code, or indicating no problem has occured since the last Initalization. Please do Note: The front panel buttons must be used, NOT those on the Remote Control. ? The number of flashes indicates the value of the MSD (tens digit) of the Error Code. ? The flashing then pauses for approximately 1/2 second. ? The LED then flashes indicating the value of the LSD (ones digit) of the Error Code. ? The Error Code is repeated a total of 5 times. Example: If the Error Code is ?24?, the LED will flash two times, pause, and then flash four times. The Error Code designations indicating a malfunction, or no malfunction, are listed below: Self Diagnosic Code Description 1 - 2 = no error detected 2 - 1 = X-ray protect (high voltage or beam current) 2 - 2 = Short protect (short protect monitors low voltage supplies) 2 - 3 = Deflection protect (this could be loss of vertical or horizontal deflection) 2 - 4 = Vertical protect (usually loss of vertical from the source). Good luck! ...Lates...
Posted on Apr 16, 2006
My JVC 36" powers-up and the red light comes on and it soundas like it is warming-up, but all that happens is the red light starts blinking and it doesnt turn on at all.
I would certainly appreciate a bit of help in this matter.
Posted on Aug 30, 2008
If it gets retrace lines before turning off, the extra current is shutting down the unit. May be pix tube, or crt drivers. Unplug the crt board to test, & measure for shorts on the crt board. Good luck
Posted on Jan 24, 2006
A class action suit seems to be the fair solution. These problems were unheard of in the past. It's a rip off to have to incur extra expenses due to manufacturing mistakes that continue to happen over time and companies should be held accountable. LRCaraballo@msn.com
Posted on Sep 05, 2008
Yes ,it might be the power supply inside your tv,those parts might recieve more voltage than they require.this will need a qualified technician to findout which parts are in need to be replaced
Posted on Jan 16, 2008
Vistron tv, power comes on and then turns off again
Posted on Nov 08, 2010
Recheck diodes 34/37 caps and test for incursion before and between tRi and lln. If res is above or at -4 (21 xcl) bypass and replace power unit with a triennial source.
Posted on Feb 01, 2010
The tv has an energy saving feature that if it doesn't detect a source than it will shut off automatically. If you have cable plugged in and it's still doing it might not be detecting it. Maybe go into your menu setting and see if there is a way to turn the feature off.
Posted on Sep 02, 2008
I have a smilar TV with similar problem but the tube doesnt have a chance to fully power up then it goes into stand by
Posted on Sep 19, 2007
Mine has bad solder connections all overpespecially at "ic4xx" i resoldered all the poor connections and the tv is working fine..
Posted on Aug 22, 2007
Astar 30" LTV 3001 ....These TV's have a cooling problem that causes premature electrolytic capacitor failure. De-solder and Test all the 2200uF-25v, 3300uF-35v and 1000uF-10v caps in the power supply (center board, back of TV). Use a good LCR meter that will read 3300uF or better, Replace all bad caps with 105c rated caps. If you don't have an LCR meter, replace all the mentioned caps on the PS. If fuse on board is blown, also replace the F9222L regulator IC chip. Mounting a small cooling fan on rear of TV over the PS will help keep your new caps from failing again. This requires holes in the stand bracket and the rear of the TV, power can be supplied from a 14V source near the bottom of the PS board.
Posted on Feb 08, 2008
Try to replace the vertical ic,I think the ic for that is la7832.replace it with a new one,together with the capacitor that located in c410 100uf/35v
Posted on Oct 19, 2007
Remove and check capacitors in power supply board with a multi meter. All capacitors should have +/- 20% of the uf rating. I've had a similar problem with my toshiba 35". I found a 50v 22uf cap that only read about 5 to 6uf, well below the 20% window. When I unplugged the t.v. and replugged it I could here the relay click but the t.v. would immediately shut off. After ordering and replacing the ten cent cap, NO MORE PROBLEMS!
Posted on Mar 14, 2008
SOURCE: Tv won't stay on
it is a brandnew tv, so expected that it is under warranty,, it best for you to return where you bought so the warraty will not void. Big possible of factory deffect.
Posted on Dec 26, 2007
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