Question about RCA HD52W56 52" Rear Projection HDTV

2 Answers

Possible picture tube problem? Delayed picture, blue background, etc.

I bought my HD52W56 last year and all was well until one month before its warranty expiration and the screen started to turn a blue tint when watching a program. At first the screen would switch to the blue tint for a matter of minutes then turn back to normal, but now it is always blue and on screens where there is no picture, you can see lighter blue lines crossing the screen--some curve down/up at one end. Also, when the television is turned on, the screen remains blank only hearing the audio for about 2 minutes before the picture pops on screen. Im leaning towards a bad picture tube, but im no expert. Anyone got an answer to the problem i'd appreciate it. I dont wanna have to spend unnecessary money to have a repair man figure the problem out first then have to pay for him to repair it if its too big of a task for a home-remedy.

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  • david96789 Dec 10, 2008

    picture stays red for about one min, shots down

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2 Answers

You need go to: http://www.thomsonnetwork.com/NR/rdonlyres/85BBDCA-E5FF-47-EO-8919-FC997DA88... This is the address for RCA>>> (BBN)so you can purchase CHIPPER - CHECK OR YOU CAN JUST GO TO : http://www.thomsonnetwork.com and search from there good luck with your tv p.s.>>>> there is NO lamp in your tv.

Posted on Mar 18, 2007

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U should have a lamp in this unit replace it very costly but will need to be replaced and it is better for a repair man to come in and comfirm

Posted on Dec 13, 2006

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1 Answer

My rca hdtv does have voice perfectly fine but no picture at all.


Some possible causes:

No filament voltage to the three tubes.

No high voltage to the tubes.

The set is also prone to bad connections at and around the high
voltage transformer.6_12_2012_3_42_22_pm.jpg

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The picture on my Sony kp57hw40 has bluish hue to it. It is more visible when what you are watching is darker in color or lower in light. I have tried to adjust everything (color, brightness, etc,etc)...


I have first some information for you and then a possible solution.

A lot of these sets had problems with the 3 picture tubes---blue seems to be the most common--if you go to a unused video input and see anything other than Input 1 etc like blue background or even blue curved faint lines do not despair.

There is a fairly easy way to adjust this (not with the remote) I can tell you the procedure and it requires no parts and only moderate skill.

May I assist you here?


SD TECH

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1 Answer

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my friend if you open the tv carefully look to see if the tube itself has light, or if you have high voltage i coulbe many different things.wish luck!!



caypianan@yahoo.com

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4 Answers

Dark Picture


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2 Answers

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If you have experience troubleshooting solid state TV sets, you should be able to tell by a couple of voltage measurements if its a problem with the picture tube or the drive circuit. Simply take the multimeter and compare the base voltage of the green drive to the red or blue drive transistor. If the voltage is about the same, measure the collector of all three. if the green voltage on the collector is higher then the others, then theres an open between the drive transistor and the crt element. this could be an open resistor, a bad solder connection on the crt socket, or an open picture tube element. If theres no voltage there then your going to have to trouble shoot the drive circuit.

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