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Hitachi 53SBX10B I turned the tv on yesterday afternoon and it seems to have a yellow and blue shadow line in the top left hand corner. I have read the books and have done magic focus and can not seem to find any answers. The rest of the picture is fine. Could I have a bulb or something going bad.

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  • bones123 Feb 24, 2008

    I have a yellow half moon dropping into the top of my screen and a blue line below it with blue shadows in the middle.

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  • Televison & ... Master
  • 2,616 Answers

It sounds like the lamp is failing.

Posted on Jan 07, 2018

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Posted on Jan 02, 2017

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SOURCE: Hitachi Ultravison Projection TV 54"

It's a hardware malfunction. It can't finish the magic focus cuz one of the IC is burned. Need to be replaced and to check the resistors.

Posted on Dec 10, 2007

  • 4234 Answers

SOURCE: Hitachi 43VWX10B Rear Projection Television - color adjustment problem

Either the pins on the convergence ICs need to be resoldered or the ICs need to be replaced. These are large black ICs attached to a heat sink and should be marked STKxxx. Resolder first. If that does not resolve it, replace the ICs.
Dan

Posted on Mar 17, 2008

yankeegurl
  • 121 Answers

SOURCE: PROJECTION TV HITACHI ULTRAVISION COLOR CONVERGENCE PROBLEM

it sounds like your blue convergence ic is getting weak you need to replace the ic's STK392-110 and you should replace both because when 1 is bad the other will go real soon. They are inexspensive at the sight I posted and you will also get free tech online support if you purchase them there.
http://servicemanuals.vstore.ca/

Posted on Apr 13, 2008

experttv
  • 203 Answers

SOURCE: hitachi tv magic focus does not work

Your problem is the convergence circuit. This is very common in CRT projection sets like yours. There are a couple of IC's that need to be changed and possibly some resistors. A good repair shop will run you $400-$500 to do the repair.

Posted on Oct 28, 2008

  • 33 Answers

SOURCE: Hitachi 53UWX10BA HDTV with convergence problem for blue

No there are no quick fix options for this fault. The convergence amplifiers operate similar to a high power audio amplifier, so if there is an impairment anywhere in the system, it will result in distorted audio, or in the case of television convergence amplifiers, a color won't align. The convergence power pacs need to be replaced and the out of tolerance precision resistors located near the power pacs need to be carefully checked and replaced as necessary.

It is also possible that there are root faults that cause the amplifiers to go bad which include bad connections or a bad digital control module. This repair is possible for anyone having basic electronics knowledge and soldering skills.

Posted on Apr 28, 2009

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