I have a 50 inch hitachi ultravision projection screen tv model # 50ux53k anyway the picture was jumping at first for awhile and a few months after that started happening i took off the back and found that if i put pressure on the circuit board it would stop jumping.so i wedged a plastic rod to keep the pressure and it worked fine for a few months and then the picture began to squish to the center (top to bottom) so i then took the back off again to find that the plastic rod fell down so i replaced it and it work for a week or so. then the picture went blank no picture or sound and the power button is on. can someone help. I have a 2001 hitachi ultravision 53udx10b, it powers up, but the screen is blank. Please help me...
A GECKO LIZARD GOT IN THE CIRCUIT BOARD AND CREATED A SHORT IN THE POWER SECTION OF THE TV AND WHEN OPENED THE TWO POWER CAPACITORS EVEN WHEN DISCONECTED STILL HAD POWER? THEY WERE DISCHARGED BUT STILL THE TV WON'T ON,THE POWER LED COMES ON FOR A FRACTION OF A SECOND AND THEN OUTS OF THE RED PROBLEM LED IN THE CIRCUIT BOARD IS ON ALSO ALONG WITH OTHER GREEN LEDS EXCEPT FOR THE ONE THAT WRITES 120V BELOW THE POWER SECTION
Check the solder around the area of the vertical IC. solder is either cracked or else cold. Cold solder appears as dull. Resolder anything that isnt shiny.
SOURCE: I have a 50 inch hitachi ultravision that has no picture or sound but power light is on
you have lookse connection on the video convergance amp ic
KIT10 $29.50
Repair Kit for Hitachi convergence Chassis DP-14G
KIT10 Includes 2 pcs STK392-150 , 1 each of the following 1W axial lead fusible resistors:
http://www.digitalhome.ca/forum/showpost.php?p=564268&postcount=220
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
SOURCE: problems with my 50 inch hitachi ultravision projection screen tv
if the power button is blicking red then most likely ur lamp needs to be replaced. they dont come cheap but its an easy fix ...try ebay for the part ...and make sure u get the correct seze and watt for that specific tv ....on a side note...if u replace the bulb yourself....wear latex gloves and DO NOT touch the bulb. the oils on your skin will magnify the light and can cause that bulb to explode or pop and then u will be right back at squareone
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yes same problem for me too. someone said there may be some capcitors bad . I need some good pics of what components on A53 circuit board fail to cause this.
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