Question about RCA L37WD12 37 in. LCD HDTV

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The tv turns on and off by itself..........i need power supply for it

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You can try here: <a rel='nofollow' href="http://www.shopjimmy.com/catalogsearch/result/index/?q=RCA+L37WD12+&amp;limit=50&amp;stock=all">http://www.shopjimmy.com/catalogsearch/result/index/?q=RCA+L37WD12+&amp;limit=50&amp;stock=all</a><br /> <br /> It can be that it is sensing short circuits s it goes into shutdown mode.<br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Please see my basic troubleshooting guide here:</span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><a rel='nofollow' href="http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide">http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide</a></span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"> </span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"><a rel='nofollow' href="http://s807.photobucket.com/home/budm/allalbums">http://s807.photobucket.com/home/budm/allalbums</a></span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-bidi-font-size: 12.0pt"> </span><br /> <span style="FONT-SIZE: 10pt; FONT-FAMILY: Arial; mso-fareast-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA"><a rel='nofollow' href="http://en.wikipedia.org/wiki/Capacitor_plague">http://en.wikipedia.org/wiki/Capacitor_plague</a></span>

Posted on Aug 25, 2010

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Samsung TV model LN32A450C1DXZA, after turning the TV on it will turn itself off shortly after and then turn itself back on shortly thereafter. Then it repeats that several times before staying on.


Hi there,

If the tv is still under warranty, this can be repaired at no charge.

However, if not under warranty, you will need to have the CAPACITORS on the main power supply circuit board tested (or replaced).

The capacitors responsible for the power supply can sometimes fail - open the back panel. If the capacitors on the main power supply board look too fat, or signs of burning near the solder joints, then you've found the problem.

Hope this helps.


Cheers,

Scott

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Nec nlt-19hdb3 lcd tv turns on, boots ok, then powers itself off after about 15 secs


Power supply board have problems.Tries unplug,replug the tv an hour later,the tv now,will reset itself back to factory setting.The tv should work now,not than the power supply board is dead.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Oct 11, 2010 | NEC ONYX NLT-19HDB3 19 in. LCD TV

1 Answer

We were watching TV and the TV just turned itself off. We try turning it back on and we have a black screen for 10 seconds and then the TV turns itself off again. Called Sanyo and they said to unplug it...


Yes,unplug,replug the tv an hour later.The tv should reset itself back to factory setting and work.Not,than the tv power supply board have problems.That the board,where the power a/c coard plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Oct 07, 2010 | Sanyo 42 in. LCD TV

1 Answer

Tv turns on and off by itself when plugged in


It sounds like the power supply is bad. It is also possible that the main board is defective. The TV is most likely doing the following:
1. Trying to turn itself on
2. Unable to sustain the correct voltages
3. Puts itself in protection to avoid damaging the components by turning itself off
4. Repeat step 1

You can do a visual inspection for any bad capacitors that look bubbly first but would need the service manual and a voltmeter before finding out which part is needed. It is most likely the power supply not giving the correct voltages but the main board that is putting the TV into protect. The voltages need to be checked in order to see which one needs to be fixed.

Oct 05, 2009 | Samsung PCN5425R 54" Rear Projection...

1 Answer

HP-R5052 reboot


It's definitely an overheating problem if your plasma turns off by itself after a while. I would suggest to place a cooling fan near the back of it as a temporary fix.
There could be a power supply issue along with a Ysustainer board but in order to know that for sure, you should use a hair drier and blow hot air to the power supply and see if the TV turns off, if the time that the tv turns off is shorter when blowing hot air to the power supply; then is the power supply issue.
Good Luck.

Jan 31, 2009 | Samsung HP-R5052 50 in. Plasma HDTV

1 Answer

TV turns itself off


The solution at this point would be to get the power supply repair since new boards are not longer being manufactured. In about 95% of the time if the LCD doesn't power up or turns OFF by itself or need to be unplug for some time to make work again; those are the symptoms of a dying or defective power supply.
I service these power supplies, for more info write to jah2mil@hotmail.com

Dec 08, 2008 | Akai LCT3201TD 32 in. LCD Television

1 Answer

Polaroid LCD tv - model TLX-04244 Shuts itself off...


The solution at this point would be to get the power supply repair since new boards are not longer being manufactured. In about 95% of the time if the LCD doesn't power up or turns OFF by itself or need to be unplug for some time to make work again; those are the symptoms of a dying or defective power supply.
If your TV is less then a year old, still under manufacturers warranty.
I service these power supplies, for more info write to jah2mil@hotmail.com

Dec 06, 2008 | Digimate DGL26 Television

1 Answer

Turns itself off


This might be a power supply failure or the beginning of the end for that power module. If your TV is 2 1/2 years old, chances are that the power supply ia about to fail completely until you will not be able to power the TV up anymore.
The first place to isolate the failure is by checking all the voltages from the power supply, if all of them appear normal then is a failure on the main board.
I service these power supplies since is becoming more difficult to find service parts for these TVs.
If you need any more assistance, my email is jah2mil@hotmail.com

May 13, 2008 | Protron PLTV-32 Television

1 Answer

Tv turns on and off


it is called hunting problem. it is due to low voltage power supply in power supply. regards

Sep 12, 2007 | RCA F32718 32" TV

1 Answer

TV LED Flashes then TV shuts itself off


capacitor problems in power supply or a regulater isolate the power suppley by disconecting the line output stage/unplug scan coils for example and run a 60w bulb as a dummy load one wire to earth and the other to rail voltage colecter of line output transister if the bulb glows steady the power supplys fine

Jun 25, 2007 | Philips 27PT81S 27" TV

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