Question about Proscan 19LA25Q 19 in. LCD Television

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Turned off by itself, will not turn on, red light indicates it has power!

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Re: Turned off by itself, will not turn on, red light...

Looking at the power supply i dont fine the 1000uf 25v copacitor ihave the supply out and looking down at it

Posted on Jul 28, 2008

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Re: Turned off by itself, will not turn on, red light...

Sounds like a problem with the power supply. The good thing (and the bad thing) about these sets is the separate P/S. While they are bad for excessive heat due to the tight enclosure, they are relatively easily replaced. I would suggest having your P/S checked by a technician to see if the electrolytic capacitors could be bad. It's usually a 1000mF@25v capacitor. Don't be fooled by the fact that the red power LED comes on, the P/S fails under a load.

Posted on Jun 27, 2008

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Do not turn on,red light always blinking

Blinking Red lamp indicates a Power Supply Problem.

Jan 17, 2015 | Flat Panel Televisions

1 Answer


These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. Viewing it in "Mosaic" or "Magazine" will make surf easy.
Blinking codes details to many popular brand TVs are given. Surf the site with patience. Do a search by type in the brand name of the device to the search box.

Jul 17, 2014 | LG Flat Panel Televisions

1 Answer

Samsung ln46c530 lost picture, now won't turn on. Indicator light turns on solid red when on, flashes five times when shut off

The fault is with its main board itself. Troubleshooting to this board is not an easy work to a user can do. It will be best to contact any service technician.

Nov 24, 2013 | Samsung LN46C530 TV

1 Answer

I turned my tv on, it then turned itself off, there is no red light, have turned off from socket but still nothing.

That's a clear indication that you have a bad power supply in your TV.
If you know how to DiY...I suggest you open your TV. Locate the power supply section, it is where the end of the power plug is connected. Replace all blown or bulge or leaked capacitors with same value. That will fix your TV problem.
The hardest part is to disassembling your TV cover, cause you will need to pry off the snap in lock at the edge of your TV.

Power supply board should look like this. Examine the capacitors in the board

After replacing blown should work again.

Things you will need.
1. A plastic flat end screw or any object with flat fry off the cover
2. Soldering iron.
3. Soldering lead
4. Soldering pump.
5. Flat and Philip Screw
6. Replacement capacitors (of same value with the blown one) that you can buy to any electronics store.

Hope it helps

Mar 06, 2012 | Flat Panel Televisions

1 Answer

Turned tv on 2night had picture and sound for approx 3 minutes then tv turned itself off had 2 flashing red lights turned tv back on no picture or sound then turned itself off again

B+ over current protection (OCP), unit goes to the standby mode then displays the 2 blink fault. Could be a short in the power supply of any of the circuits.

Mar 16, 2011 | Sony Flat Panel Televisions

1 Answer

Tele turned itself off, red light blinks 4 times then pauses and blinks 4 times again.

You can try unplugging it for a while and then plugging it back in, but according to the manual, the standby LED:
Lights up red when your TV is in PC power saving mode. If the LED blinks in red continuously, this may indicate the TV needs servicing.
(Operating Instructions, Page 22)

Mar 05, 2011 | Sony BRAVIA KDL-32S2000 32 in. LCD HDTV

1 Answer

I recently purchased a used 50' Hitachi 50V500a Ultravision HDTV. I've had it for about a week. Was watching it. Turned it off to run an errand. Came back. Tried to turn it on. There is power. No...

The "LAMP" LED light indication still light up,after all the other LED lights indications turn off?The tv projection lamp is dead.Require a new tv projection lamp.

Oct 15, 2010 | Flat Panel Televisions

1 Answer

The screen doesn't go on when the power to the TV is turned on.

View your screen from a flat angle while on a known active channel to see if you can detect any 'ghosting' of images.
I think either the back-light or the high voltage supply for it has failed.

May 17, 2010 | LG 42LC2D 42 in. LCD HDTV

1 Answer

ViewSonic N3250w

The defective power supply module will cause the following symptoms:
No Display and no Sound, Then Power indicate light changes from Green to Red.
Turns OFF by itself.
Needs to be unplug to make it work.
Works for a few minutes then turns OFF.
I repair these power supplies, if you need further assistance

Aug 22, 2009 | ViewSonic N3250W Television

1 Answer

ProScan won't turn on

The switching power supply is probably the problem. There is a 1000mF@25v capacitor in the P/S that goes bad from the excessive heat. Try another power supply or have your old one repaired.

Mar 06, 2008 | Proscan 19LA25Q 19 in. LCD Television

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