Question about Hitachi 57F500 57" Rear Projection HDTV-Ready Television

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Problem with a Hitachi model number 57F710E Model....

The screen picture started to move to the let and off center and wrap around....and about 5 mins later now the picture is racing up and down the screen like it has a poor connection? But...even with the cable turned off you can see that there is still something wrong with the display. But, on the other hand, DVD's will play just fine? Please help!! I bought this from someone out of the peddlers post and think she may have know about this problem and that is why she got rid of it! I have only had it for a week!!

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Re: Problem with a Hitachi model number 57F710E Model....

Sounds like a bad convergance chip/board. But with it working ok on the DVD it may be a tuner problem. If the DVD is hooked in the video plug, you may way to run your channeling from the DVD and foget the tuner on the TV. Good Luck
NC Electronic
Mills, Wyoming

Posted on Jan 06, 2008

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My TV is the Hitachi model 51UWX20B and tried using magic focus to line up red color. Picture looks like 3D with red off center. When using magic focus it gets to the red phase and it shows the number 5...

You need to replace the STK ICs which are Convergence ICs STK392-110 use 120s or 150s
also check the small ohm resistors around ICs . They are Big Black ICs and will have part number on them ,should be located on the Right hand side of Chassis .
Mats Eletronics has Parts 1-800-628-1118 Convergence IC Kit.

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You need to re-solder the circuit board that contains 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, about dead center in the circuit board. 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. Take the appropriate cautions working around the high voltage of the set & use a non-conduting piece of wood to push the heat sink when we doing tests.
Best of luck, hope ya fix it.

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1 Answer

I have a Hitachi. It will turn on with a good

replace Both of your STK ICs they are big black ICs will have part number on them example STK392-110 Call Mats for parts 1-800-628-1118

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2 Answers

Tv works like 10 min.then retrace lines appear,

the model number 53fdx....etc is not a Toshiba model number---It is a Hitachi model number.

First if it comes on and you get trace lines before it shuts off----does it just get very bright and if so does it get bright red, green, or Blue?

if one of the picture tubes or the circuit around them has a problem you can get this and the set will shut down because it detects something is pulling way too much current.

I would be happy to try to help you but look at back of your set for brand and model number and if possible try to give me a better idea of what the picture looks like before it goes out.


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Do you have a center speaker near it? maybe move it, that is what I have done and it seems to have gotten better.

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Good Day,

Sounds like the TV's convergence circuit has failed:
*Call an Authorized Service Center and them give you an estimate cost of the repair, or
*Repair it your self; get KIT 10 locally or B&D Enterprises
Good luck, big IRISH.

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The lines you saw, i;m sure they are the ones called retrace lines but know the failure could be located on the red CRT board. Most likely the video amplifier is defective and not necessarily the CRT.
What is the model number of your TV?

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