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Hitachi TV flickering on startup

Hi Guys. I have a 32" hitachi LD30U tv which ive had for around 4 years. When i switch the TV on the screen distorts between a scrambled blue screen and a normal screen. Kind of flickering. After around 10 to 15 minutes this stops and the tv works fine and is fully functional. Not sure if it`s on the way out. I`m hoping there is a simple solution which i`m overlooking. Any help would be greatly appreciated. Tom

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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wyoed1
  • 211 Answers

SOURCE: hitachi 57f710s

Sounds like a video board problem. May also be the convergence board. You might get some freeze spray ( a component cooler that comes in a spray can ) and while the set is on, spray the boards and see if the problem temperarly corrects. This is to isolate the problem. Once the problem is isolated, you can change the bad component. Good Luck
Ed
NC Electronic
Mills, Wyoming

Posted on Jan 06, 2008

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ctf1800
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SOURCE: blue haze on hitachi 51" tv

http://www.hdtvoice.com/voice/showthread.php?t=15263

Posted on Jan 14, 2008

  • 2 Answers

SOURCE: Hitachi 43FDX01B (convergence) problem

hi i have same prob iv bin told its a convergence chip an thay r £150 ! thay go bout evry 6 years an its comon .. any way there coming 2 fix mine 2day so ill let u know if it sorts it out my mail is mjoutlaw@hotmail.co.uk thanx

Posted on Feb 01, 2008

  • 579 Answers

SOURCE: Hitachi 51SWX20B's screen has 3d effect

You have a problem with the STK convergence modules. They're on the center circuit board attached to an aluminum heat sink that's about 8" long and 6" tall. You may be able to recreate the problem (hour glass effect) by gently moving the heat sink (which the modules are connected to). This gives the hour glass effect on the picture and the advanced convergence screen. This is an indication that the modules pins aren't solidly connected (meaning soldered) properly. Remove the circuit board and clean the old solder off & resolder the modules pins to the circuit board reconnected the board and then retest by again pushing on the heat sink. The "factory" job was good enough for 3-4 years but the heat (and these modules do create a lot of heat) and stress created from repeated use eventually takes it's toll, weakens the pin connections and our problem occurs. take the appropriate cautions working around the high voltage of the set & use a non-conducting piece of wood to push the heat sink when doing tests.
If soldering doesn't help, then the modules have died and need replacing. Don't buy the $10 cheap ones. Most of them have an upgraded version that is stronger. Also look for any burned resistors in the vicinity of the modules.
Best of luck, hope ya fix it.

Posted on Feb 15, 2008

charcois
  • 763 Answers

SOURCE: hitachi 60vs810 blue screen only no other functions but on, off

try to pull the power plug for about a couple of minutes and after that turn it on. see also the settings of your tv and manual of it. if all suggestions here didnt fix your problem then you might send it to repair service. hope that helps!


CHARCOIS

Posted on Sep 30, 2008

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