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My 42' will come on with a picture , but then shut off picture, and leave on - off light blinking, and I have to unplug it to turn off. Dynex brand

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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. http://electronicshelponline.blogspot.com/

Posted on Dec 15, 2014

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: JVC 42 INCH PLASMA POWER LIGHT BLINKING ONLY NO PICTURE

no kidding? what is the problem so prevelant in this unit? obvious design flaw.

Posted on Jul 26, 2008

freetek
  • 5568 Answers

SOURCE: Phillips Plasma 42" TV

It is most likely a power supply failure and if there had been no signs of problems in the video display, it is probably the main power supply rather than one dedicated to the plasma display itself.
You might leave it unplugged overnight to give any stored charge inside the unit a chance to bleed off, the remove the back panel.
The primary supply is normally on a separate board and is characterized by having mostly larger components, including one or more transformers with black ferrite cores. The main supply will be associated closer to the AC input while the high voltage supply which may or may not be separate is not.
If you can locate the board with some confidence, check it visually for any signs of heat such as discoloration of board or components. If it seems OK it may be a candidate for exchange or repair by Philips.
I wouldn't advise removing and sending it before you talk to Philips to see if this is a familiar problem to them. 

Posted on Dec 16, 2008

  • 6 Answers

SOURCE: LG 42 LCD no sound or picture

This is probably bad capacitors on the power supply board. My LG 42LB1DR has a known problem with this and I replaced the four bac capacitors myself and saved 5-6 hundered dollars that I was also told that it would cost to fix. I fixed for under 10 dollars and about 20 minutes. LG knows about it but they dont really want to admit it. My TV was only 26 months old when this happened. The four capacitors are made by Samxon and are 2200uf @ 10v. They are junk so even if you have the entire board replaced for say $200 its just going to happen again. They need to be replaced with a different brand.

Posted on Apr 29, 2009

romsky79
  • 822 Answers

SOURCE: picture shut off and now there is a light that

in this situation it means that there is a problem with secondary power supply. check it.

Posted on Jul 08, 2009

mbelectronic
  • 147 Answers

SOURCE: power light blinking RED after power outage

replace the power pcb,check the fuse on the
power pcb and see if that corrects your problem.if not replace the power pcb.go tp
shopjimmy.com to get the board.

Posted on Jul 29, 2009

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Our Sony 52" tv HIM I KDF-55E2000 will while we are watching it go black, no picture or sound, the green power light blinks bout 42 times then picture and sound comes back oon for about 3 minutes then it...


It sounds strange that the power light to this model Sony TV blinks "42" times. It should never happen. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".
http://electronicshelponline.blogspot.com/
These blinks are fault indications,[Error Codes], and from the number of these blinks, you can get an idea about the faulty circuit stage inside the TV; which will make repair easy.

Jul 04, 2014 | Televison & Video

1 Answer

Have a lcd 42 dynex picture dark


Have a 40" Dynex LCD TV...Has been workin ok but i just turned it on today and pics are dark and yet all pics settings are ok. Pics are still dark even when i increase brightness from menu.

May 18, 2010 | Televison & Video

1 Answer

After turning on TV, lamp light blinks but no picture


IF IT SHUTS DOWN TO STANDBY, THEN DIGITAL BAORD IS BAD, IF IT JUST KEEPS CYCLING ON/OFF THEN YOU NEED A POWER SUPPLY, BALLAST AND PROBABLY LAMP

Dec 30, 2009 | Samsung HL-R4266W 42" HDTV-Ready...

1 Answer

TV turns off and power light blinks unpluged andd still does it.


Likely to be the STK convergence chips causing a protection circuit to switch the TV off. Have you got any onscreen convergence problems (i.e, colour fringes)?

May 27, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

Brand new sharp aquos LC-52D65U no picture


Sounds like a over heating issue, try unplugging the unit and leave it for an hour , before you reboot. make sure there is some kind of ventilation in place . Also double check your connections very important.

Apr 12, 2009 | Sharp Aquos LC-42D62U 42 in. LCD HDTV

1 Answer

Blinking light on 37" Dynex LCD


I had a similar problem with my Phillips 42 in. LCD HD TV.

Here's the problem. The Power Supply Board. I opened my TV up(warranty was up of course) and found several bad capacitors. Phillips and several other companies were sold capacitors that although were highly rated failed within 5 years because of a lack of preservatives. All sorts of electronic equipment is now being effected due to these defective capacitors.
Solutions?
1. Take it in and have it fixed
2. Open it up, check the board for faulty capacitors(bulged or leaking) Buy a new Power supply board and install it.
3. Remove PSB, remove faulty capacitors and replace with compatible new ones.

Hope this helps

Dec 22, 2008 | Dynex DX-LCD37 TV

1 Answer

Philips 42" plasma -- blinking red light


hello, if you have no picture with blinking or flashing leds this means you will need service. its a common problem with these newer sets they have built in protection circut that cuase the tv to shut down and start blinking. this indicates a power problem and according to the number of blinks indicates the fualt location for the repair tech..

it is not something easily reset or user repairable
hope this helps

Dec 18, 2008 | Philips Televison & Video

2 Answers

Power button is green - no blinks / no picture / no sound


Unplug it from the wall, wait 2 minutes and plug it back in. if problem still exists, its probably the main pcb.

Jun 19, 2008 | Dynex 32 in. LCD Flat-Panel HDTV

1 Answer

Samsung 42 inch projection


HLP, HCN HL-S The Start-up Problem or/and
3 LEDs in the front blinking.

Unplug the set, pull out the lamp module (not all the way - leave it on the track) and push it back in.

Power issues (Tv not turning on) were typically due to faulty ballast. While the TV reports a bad lamp it is the ballast itself causing the issue. Samsung is well aware and will replace both the ballast and the lamp (since the lamp can be prematurely aged but the bad ballast). After replacment most people stop having issues.

Feb 07, 2008 | Samsung HCN4226W 42" Rear Projection...

4 Answers

JVC 42 INCH PLASMA POWER LIGHT BLINKING ONLY NO PICTURE


no kidding? what is the problem so prevelant in this unit? obvious design flaw.

Dec 19, 2006 | JVC PD-42WX84 42 in. HD-Ready Plasma...

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