Question about Zenith P42W24B 42 in. Plasma Television

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Dead power lite on,green ,,rf board 4red lites on?????

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If you are able to hear audio but no video, your Ysus assembly might be defective. It could also be your power supply not providing all the voltages to the different assemblies on your TV.

Posted on Apr 28, 2008

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Power lite on rca flat screen flashes 4 times


I would suspect either the Power supply or the main board. I can assist you with basic trouble shooting to determine which board it is if you would like. Just respond to this same post for assistance.

Jan 01, 2013 | RCA L42WD22 42 in. LCD Television

1 Answer

No red lite stand by


Hi,

That kind of problem is very common on all flat panel TV..

If there's no red lite to the front panel of your TV and no picture or sounds..

The problem is totally dead set power supply board (it is commonly found directly connected to the power cord)..

You can buy it online..For specific and easy search you need to get the part # on said power board (part # is usually printed on sticker attach to the board itself)..

Hope it helps...please don't forget to rate my answer..

Feb 10, 2012 | Flat Panel Televisions

1 Answer

Philips 47PFL5603D LCD TV ,will not turn on,it did have flashing red lite,insted of green,then it got a clear flashing lite,now there isn't any lite on,I have unpluged it,when you plug it back in,you...


Hi,

The power supply board is dead, do you know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.


Take care in solving the problem....

May 13, 2011 | Philips 47PFL5603D 47 in. LCD HDTV

2 Answers

Power light and opc lights blinking green


It can be the power supply is sensing short circuits in the power supply itself or in the backlight inverter board, those are the two areas you need to inspect.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx

Aug 10, 2010 | Sharp Aquos LC-37G4U 37 in. HD-Ready LCD...

1 Answer

No power, tried a new power cord, still no power


Ur tv have any power lite flashes on the front power LED lite on the screen pannel?Yes,than the power supply board have dead leakage parts capaacitors,they bulges up on it top or puff off on it tops.U know basic electronic,soldering equipments and know soldering?Replaced those dead leakages gas capacitors on the power supply board.Or tries websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Jul 03, 2010 | LG 50PG20 50 in. Plasma HDTV

1 Answer

Green lite on screen flashing no picture no sound


U know basic electronic's and know soldering?Ur power supply board is defective have dead leakage capacitors,these capacitor around the power supply board they bulges up it top,or puff it up on it top.Replaced these defective gases leakages capacitors,u tv will get it power back and funcstion normally.Or tries this websites like Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Apr 30, 2010 | Proview Hx263 26 in. HD-Ready LCD...

1 Answer

I have a sharp 37" lcd tv,model # lc37sb24u. no pix or sound, power lite comes on about 10 seconds then power and opc lites alternate on and off. thanks RON


This problems very common in Sharp LCD tvs.The Tuner signal board have problems,every times the power LED,OPC LED lites up,just push the power button on again,wait see if the LCD backlight lite up and works,not the Power lite and the OPC lite LEDS flashes again.You,just have to push the power button again,sometimes u have to push the power button at least 6 or 7 times to get the Power LED stable,and then LCD backlight,come on than the tv work.Not sure,but if the Power and OPC lites keep flashing,after u pushes the power button at lest 10 or 12 times,and the LCD backlight dosen't come on and the tv don't work.I think,it time to change the Tuner board is completely dead.I have a Sharp LCD tv, I do this everytimes pushing the power button at least 3 or 4 than the power LED stable,and the LCD backlight come on than the tv work.Not a plaw in the power supply like those capacitors in many LCD models tvs,but some included Sharp Tvs is the Tuner signal board is not very good in design,use the tv awhile the Tuner signal board have problems recieving the power to it Tuner board components.

Apr 15, 2010 | Sharp LC37SB24U 37 in. LCD TV

1 Answer

GREEN ON LITE COMES ON, BUT EVERY FEW SECONDS THE RED STANDBY LITE FLASHES, THEN THE GREEN LITE COMES BACK OM.


Sounds like the power supply. The supply checks for all the various voltages to be there - if they are not it shuts down. It then tries again. So if you are hearing the click in/out of the PS relay that's where the trouble is. Before buying another PS at least disconnect the Ysus and Zsus suppy lines to make sure they are not pulling it down. If they aren't - it's the power supply. It's a complex board (PKG-4014) and if you ever get a diagram I love a copy - they are never in the manuals. Mine was one of the 3641 regulator chips. Hope this is of some help.

Jun 26, 2009 | Sony PFM-42V1 42 in. HD-Ready Plasma...

1 Answer

Green lite comes on for about 2 to 3 seconds then shuts down red lite pulses


If the back was off the board on the left is your Ysus board. It will have a cable plugged into the right side of the board from the signal board. Unplug the the Ysus board. If it stays on without a picture change both Y and Z sustain boards. If this helps let me know.

Oct 15, 2008 | Philips 42FD9932 42 in. Plasma Television

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