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Tv screen black/blank...if picture tube problem, can you buy a tube and install?

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It is the back light that is not working, you are looking at a bad power supply or a bad inverter, that feeds the voltage to the bulbs.

Posted on May 26, 2011

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Replaced lamp, however 50% of screen continues to turn black when the TV is on a long time.


This problems it is not fixable or worth fixing because of the CRT picture tube of screen itself.Slowly dying,now the tv it is not worth a whole tv anymore if tv require a new CRT picture tube.CRT picture tube,if u can get a hold of it,most likely only can buy it from the tvs corporations themselves only and they charges u like a new tv,because the CRT picture screen it self 90% important to the tv functions itself.

May 23, 2011 | Samsung HLR5688W 56" Rear Projection HDTV

1 Answer

Tv keeps blinking to black screen and back to normal. (sony trinitron)


Probably the picture tube getting weak, those sets have a circuit called IK Blanking that samples the three colors of the picture tube and if they are not equal the circuit blanks the picture. Another clue is if occurs less frequently the longer the set is on because the picture tube can get a little stronger as it warms up.

Aug 28, 2009 | Televison & Video

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No remote. I hooked it up anyway and programed a


Hi,

The Tv sounds like it has a fault. Firstly, switch tv on in a dark room and look through the back cover grills at the tube neck. If it is lit up a dim orange, the heater is ok, and the problem is either a loss of voltage to the tubes first anode (A1) or a field collapse problem ( a line across a black screen which is blanked out by the tv protection circuitry) or...it could be a black level clamping fault on the video driver chip or faulty video driver chip.

Aug 05, 2009 | Sanyo Televison & Video

3 Answers

Was watching tv all of sudden screen turned black, with audio...


i was watcing tv afeter a while i realized there is no picture but we have sound

Jul 14, 2009 | ESA PDP4294LV1 42 in. EDTV-Ready Plasma TV

1 Answer

Screen goes black every few seconds but have a picture


Sony incorporates a video blanking circuit that blanks the picture out when the picture tube begins to get weak. sorry, but short of replacing the tube, there's no lasting solution to this problem. I used to have some success rejuvenating the crt, but I found that it didn't last but a few hours before the blanking circuit starts to activate again.

Apr 01, 2009 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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Blank screen on panasonic television


Hi, u have clearly mentioned that u are able to hear the sound from ur television. So the audio port of ur tv has no problem. The problem is that the picture tube of ur tv has damaged totally. Video output port has lost its ability to display on screen. If u are in a option of repairing ur tv its better to get a new picture tube or else if u opt for purchasing ur new television its well and good. but the cost for replacing ur new picture tube costs more.

Jan 26, 2009 | Panasonic Televison & Video

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No picture, just black screen.


Picture Tube?!?  What century are you from?  There is no picture tube.  It's a circuit board, and no, you can't install it yourself -- that's the problem with electronics today, and why they're made to fall apart so quickly.  We either have to buy another one, OR pay someone else to fix it.  They have us no matter what.

Oct 06, 2008 | Televison & Video

1 Answer

Sony KP-57wv600 big screen


you will need to replace the Green CRT your model uses the sony # 873365201 CRT. The other site I work for just got a shipment of Sony and RCA CRTs(Tubes) in on friday. So you can get one at the following link these are brand new Tubes and they provide free shipping and free on line tech support with instant messageing in case you need help installing it. Heres the link.
http://servicemanuals.vstore.ca/

Jun 22, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Top portion of screen blank


could be down to the tube in side the tv that is what create the picture

Jan 14, 2008 | Panasonic PV-DF2035 20 in. TV/VCR/DVD...

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Sanyo DS24425 24" TV has great sound and no picture(black screen)


if tv have black screen,increse screen control to see vert ic is defective,and if screen is white with lots of line acrose ,you can find open resister,on pic tube board,or in main board near transformer.

May 20, 2007 | Sanyo DS24425 24" TV

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