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Plasma tv keeps switching itself off - Projection Televisions

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It is either going to be your y-sustain board or the main Power supply board. Not something you can repair your-self

Posted on May 09, 2008

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Samsung hcm4216W turned off by itself loops.


Instead of typing model number of your TV (that located on right hand side and on the back of TV) you published here part number of your TV's remote control. LOL.
Anyway... If it is LCD/plasma panel that you talking about - than power supply have bad electrolytic capacitors that have to be replaced. You can recognize 'em by bulged/swollen tops (instead of flat tops of good capacitors).
This repair required soldering skills.

Mar 09, 2010 | Samsung HCM4216W 42" Rear Projection...

2 Answers

KEEPS SHUTTING OFF


What type or TV is it DLP , LCD, Plasma?

DLP -----> LAMP--------->go to this 2 sites

http://www.discount-merchant.com/SearchResults.asp?Search=Mitsubishi%20WD-62525%2062


http://www.discounttvlamps.com/mitsubishi-tv-lamps-s/20.htm



PLASMA------->Digital boar or On switch it depends ... can you go on the Display Menu and it looks goo?
do you see any spots?


LCD-------------> You need DMD Bord

good luck tell me more so we can figure it out!

Jan 23, 2010 | Mitsubishi WD-62525 62" Rear Projection...

1 Answer

My dlp tv keeps switching itself off


take bulp vent cover off rear of tv. there is a little plastic switch that gets pressed in by this cover. i taped mine in because the cover wasnt pressing it in all the way and causing tv to shut off all the time. havent had a problem since.

Jan 11, 2010 | Samsung SP46L6HXX/XEU 46" HDTV-Ready DLP...

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TV KEEPS TURNING OFF BY ITSELF


If the TV goes in standby, then it is in protection mode.

Ensure also that the fault is not coming from a faulty receiver box sending
bad signal, check if you get same problem on DVD with no receiver box
connected.

Try first leaving the TV power cord unplugged for some times, let say one hour or so.

The flashing light indicates a diagnostic state called protection.
When the TV goes on protection there are only two possible causes.

1The internal circuits are jammed because of electrostatic charges accumulating on capacitors, or because of a wrong voltage read by the main chip on your monitor controller board. this started the protection circuit.

2 The protection circuit detected a wrong voltage or abroken contact, identified an internal fault and kicked in , starting the flashing light.

If you are in situation one, then the TV will reset just unplugging power cord for one or two hours,sometimes even minutes.

If you are in situation 2 , then there is an internal fault.

If under warranty contact the manufacturer ringing the number on the user manual

If you want to repair at your own expenses, just locate any good qualified repairer.

If you want to DIY you find parts here,

All: Appliance parts, electronics parts & more from PartStore.com

Encompass Parts Distribution

LCD/Plasma Electronic Replacement Parts: Plasma & LCD TVs, Appliances |


On LCD Pay particular attention at inverter and power board, power board can be inspected looking for bulged or leaking capacitors, then tested with a multimeter. The inverter is more difficult to test , there is need to read voltages, should be done by a tech. Also the LCD controller board can cause same problem

On Plasma, test Sustain (Ysus/Zsus) / Buffer boards , cables to plasma, digital board and power board.

On Rear Projection : check lamp, lamp ballast, power board, and convergence.

On CRT TVs, check ballast , flyback transformer, CRT, Tuner, Convergence.

May 06, 2009 | Samsung HL-S5086W 50" HDTV

1 Answer

I have a phillips matchline plasma the power light keeps flashing green then starts flashing red is there a problem with the connection between the tv and the master box?? plz help!


According to " Consumer Affairs. com", the problems with seris of Phillips plasmas are innumberable. And they all start with the flashing red light, from 3 - 7 times. Baased on the information you gave, there is something wrong with the TV itself, not your perifrials. I would contact Phillips/ Magnavox to see if they will pay for an authorized sevice center visit, or even ship you a part to solve the problem.

Apr 11, 2009 | Mitsubishi WS-65513 65" Rear Projection...

1 Answer

My LG Plasma is only 20 months old - its a 60 inch panel with HD tuner - the tv keeps turning itself off after about 2 minutes - why does it keep doing this?


Your tv needs a software upgrade, check with the tv manf and see if they have one available, usually they have it online for free

Aug 18, 2008 | Projection Televisions

1 Answer

Replacing plasma tubes in a plasma tv


Please explain your question. Keep in mind there is no such thing as a plasma tube. What is the make and model of your plasma TV and what are the symtoms?

Mar 21, 2008 | Projection Televisions

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