Aller au contenu principal

Réparez vos affaires

Droit à la réparation

Boutique

Repair guides and support for your Samsung TV.

Questions au sujet de 1915 Voir tout

SAMSUNG LCD TV LN32A550P3FX2A won't power on

front indicator light goes on, but, tv does not turn on

Répondre à cette question J'ai le même problème

Cette question est-elle utile ?

Indice 26

Commentaires:

Hello please help we disconnected my tv for 10 minutes as it wasnt working, then when we turned it back ON the red light was not on but the screen was navy blue and you could hear the voices on tv... Then a couple seconds later the screen would go completely black and gone, you couldnt hear the voices... NOTHING. Then again a couple seconds later it turned back to navy blue with the voices back PLEASE HELP nothing has been working and this is the second tv in 2 months that has broken down!!!!

par

The LCD screen may have gone out. Check to see if your warranty is still in tact. If you do have warranty then call Samsung or where you purchase it. It can be a costly repair.

par

Ajouter un commentaire

9 solutions

Réponse la plus utile

90% of the Samsung TVs I have repaired have had failed electrolytic capacitors. Here is a photo showing bad caps.

http://www.flickr.com/photos/11419501@N0...

Power supplies need low ESR caps. This is the type you need -

http://www.digikey.com/product-detail/en...

They come in different capacitances (in uF) and voltages. Higher voltage is ok, lower capacitance is not ok.

Cette réponse a-t-elle été utile ?

Indice 5

Commentaires:

The TV's power light (red light) is illuminated but stays solid red with slight flickers. The TV won't turn on at all. Could this be the same problem as stated above, or in your experience could this be another problem entirely.

par

That is exactly what is happing to my Tv. what do I do?

par

Ajouter un commentaire

please, have a look at this page, french pages but you may found something interresting: http://mcgivrer.wordpress.com/2011/04/18...

Cette réponse a-t-elle été utile ?

Indice 3
Ajouter un commentaire

Looks like a power supply problem, right? You should check if your power supply is working correctly.

Anyway, it's very common the main board problem. Some SMD components can be broken or a capacitor exploded.

I have the same problem in a 32 inches samsung TV. I'm awaiting from the vendor the two pieces. The power supply normally works, but the mainboard is out of stock in Samsung. So as i think, the problem is in the mainboard.

I'll tell you later if i have resolved the problem to help you better.

Cette réponse a-t-elle été utile ?

Indice 2

Commentaires:

A number of questions first.

when you power up the tv, you said the indicator light illuminates. Now is there any sound?

If yes, the florecent lamps are probably bad and need replacing. If no the problem, is most likely a power supply issue, inspect the power supply very very close, pay special attention to capacitors. If the unit is over 5 years, replace all electrolitic capacitors.

Should that fix it then the main board.

By now your probably at the point of just buying a new unit because the cost for further repair is not economical.

par

mikesaralove, hopefully the OP got it fixed within the last four years

par

Ajouter un commentaire

Bad capacitors are a common problem for many electronic devices. For easy understanding, they dry out with use, this causes them to overheat venting their gas. Failed capacitors are usually very easy to spot even for the untrained eye. They have a distinctive, "tin can" look. The top of a new capacitor is totally flat with 3 small slits. These slits are vents. When a capacitor reaches the end of it's service, the pressure builds up and opens the vents. All you need to do to spot a expired capacitor is to look at the top of it to see if the vents are open, this will be apparent by the swelling of the top of the capacitor. The top of the capacitor will no longer be flat but will be slightly raised in the middle.

Hope this is useful.

Remember. High voltages are dangerous. Always respect electricity because it won't respect you.

Cette réponse a-t-elle été utile ?

Indice 2
Ajouter un commentaire

Yesterday, I had the repair man fixing the same problem in my samsung tv lcd 40 inches. It was two capacitors (http://en.wikipedia.org/wiki/Capacitor) who are broken.

Every 3-4 years is the life span of this component.

It was a easy fix, you can find video in you tube about this fix.

Juan

Bogota

Cette réponse a-t-elle été utile ?

Indice 1

Commentaires:

How much would it generally cost for this repair?

par

Ajouter un commentaire

Hello. I just fixed mine . I have the same problem ( Led light stay on . but won't Turn on )

I replace Y Main Board . solved the problem . if that TV is LCD most likely the Inverter Board .

good luck .

Cette réponse a-t-elle été utile ?

Indice 1
Ajouter un commentaire

Simple fix for me. Unscrew the base, unscrew the back; lifts off. Power supply in the middle section had an obvious bad capacitor. The top was leaking. Mine was a yellow (korean NXH) 1000uf 25v low ESR. I replaced it with a similar unit. I checked the ESR (resistance) but cannot recall the value. Typically they should be .02 ohms. Anyway my malfunctioning capacitor was down to 490uf on my meter. With the new cap in it is working like a new one again.

Cette réponse a-t-elle été utile ?

Indice 0
Ajouter un commentaire
  1. My visio TV won't turn on power button is broken
  2. Help me my Vizio TV power button is broke what do I do

Cette réponse a-t-elle été utile ?

Indice 0
Ajouter un commentaire

Most of these power button are nothing more than a plastic accuator that presses on a surface mount switch, of which you can purchase less than .15 cents.

Cette réponse a-t-elle été utile ?

Indice 0
Ajouter un commentaire

Ajouter une réponse

BOB sera éternellement reconnaissant.
Afficher les statistiques:

Dernières 24 heures : 2

7 derniers jours : 26

30 derniers jours : 158

Total : 64,548