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How can i repair half picture blank? - Televison & Video

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Replace all electrolytic capacitor at the vertical section of your mother board.mostly the high capacitance..

Posted on Jan 04, 2014

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Posted on Jan 02, 2017

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Bush tv, screen has gone blank with no sound or picture. Fuzzy noise in the back ground. Sometimes takes up half hour to come on but today no noise / no picture just blank screen, any advise on the issue...


I think it is Time for a NEW TV. Not worth the money to repair. If it is under warranty, have the work done but other than that, you are wasting your money

Apr 09, 2013 | Televison & Video

1 Answer

Vertical blanking


CHECK C2C52 10 UFD @ 50 V OFF THE BASE OF Q2C51 ON THE SIGNAL PCB. 2. CHECK C2P05 100 UFD 16 V OFF PIN 3 OF IC2P01 AND IC2P01 PART # 270P466020 (9-VOLT REGULATOR). BOTH ARE ON THE SIGNAL PCB.

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Half screen is blank 42lg20 or 42lg50 when


This is likely to be the T-con board. If the entire screen glows but you have no picture on the second half of the screen then it is the main board, not the backlight inverter. If the screen is half picture and half gray it is the T-con board.


Replacement of one of the above will fix the issue.


Please rate if this helped :)

Mar 07, 2011 | LG 42LC2D 42 in. LCD HDTV

1 Answer

VP191B VIEWSONIC MONITOR POWER ON AND PICTURE SHOWS FOR HALF A SECOND THEN GOES BLANK, POWER OFF AND POWER ON PICTURE FOR HALF A SECOND AND GOES BLANK


More likely to have problem in either the backlight light inverter board or bad lamps due to poor solder connections, see http://s807.photobucket.com/home/budm/allalbums
You will need test lamp to narrow down the problem.

Feb 05, 2010 | Computers & Internet

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Copy split in half; half blank/half print


It is a scanner problem. You need to take in in for a service tech to repair. It could be the scanner bulb, or laser.

Jan 08, 2010 | Sharp Office Equipment & Supplies

1 Answer

Sony KP53V15 picture is half on top and half on bottom - what could fix this?


Do you mean it's blank in the middle or blank top and bottom.

Either Vertical o/p problem or cc (closed caption) is on

If cc - check on screen display to turn off cc.

if Vertical o/p read below-

This is an easy repair if you've ever soldered and would not be too costly for a repair shop to do it for you. The problem is a bad Vertical Output IC (usually mounted on an aluminum heat sink with the part on it labeled LA78?? ) and 1 or 2 bad capacitors. Some times you can even fix the problem by re-soldering the contacts of the IC- To find the IC follow the 4 wires that come from the Yoke (which is a contained coil of wires slipped over the neck of the picture tube(s)) back to the board. 2 of the wires go to the horizontal o/p and 2 to the Vertical o/p the thinner gauge wires are for the vertical.

Sep 22, 2009 | Sony Televison & Video

1 Answer

TV blank, sound okay, picture comes for half a second while switching channels


i am a technician and i too have this issue. if any of you can get a schematic and service notes, send them to trae3@live .com and i WILL find the problem and report to each of you. i cant get any help from sears all i need is to speak with a technician who actually works on these things, get the paperwork and then i am sure it is a matter of a module swap. any info will help us!

Jun 23, 2008 | Protron PLTV-26 26 in. HD-Ready LCD...

1 Answer

Philips LCD model 26TA1000, vertical lines and blank white screen with no picture


it would be easier to find it stripped from a damaged set on ebay.
I see several there but need the part number to search
of course you may purchase that and find it to be the lcd driver.hopefully not.

Feb 17, 2008 | Televison & Video

1 Answer

Problem in my HITACHI CMT2153 TV


hi, the problem is in the vertical ossilation if only u can trace the bad component.. let me know

Jan 10, 2008 | Televison & Video

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