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

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It seems the my hitachi 57F710S overscan is bad

My hitachi tv overscan was very acceptable when i first got it, but after moving a couple of times it seems that the overscan has gotten really bad and lost its sharpness too, is there any way i can fix either of those problems. thank you for your help ,if you fix this, that would be amazing.

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3 Suggested Answers

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

wyoed1
  • 211 Answers

SOURCE: hitachi 57f500

You may have a bad convergance chip, a bad CRT( picture tube ), CRT Board ( board pluged into the picture tube),or a bad video chip. Although this is somwhat a common problem on this model of set, I have found many different fixes. Sorry I can't be of more help. Good Luck
Ed
NC Electronic
Mills, Wyoming

Posted on Jan 06, 2008

ladywinn
  • 5138 Answers

SOURCE: My Hitachi 57F710s Projection TV has no, picture,

Replace Both of your STK ICs /IF STK392-110s use 180s.

Posted on Aug 06, 2009

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1 Answer

Repaired the convergence and now the image quality is good but the TV seems to be over projecting the screen. The top, bottom and sides of the image are cut off slightly. is there a way to adjust?


Hey! its me again. I think what your experiencing is called overscan. This website might help but if not just google how to fix overscan on a projection tv.
http://www.cnet.com/news/overscan-youre-not-seeing-the-whole-picture-on-your-tv/

May 24, 2016 | Televison & Video

1 Answer

My Hitachi TV model # 57f710s doesn't have picture or sound.


It very well could be the flyback unit around 70.00 for part!

Dec 07, 2008 | Televison & Video

1 Answer

My Hitachi TV model # 57f710s doesn't have picture or sound.


this could be your flyback (one of the most common problems) the part is cheap but the pro you need to put it in will not be!

Dec 07, 2008 | Hitachi 57F500 57" Rear Projection...

1 Answer

Magnavox 37MF337B/37 overscan only sometimes problem


This TV has a pixel resolution of 1366x768p

It will accept a 1920x1080i input from a high def source , but running a PC at 1920x1080i/p will cause the problems you describe, depending on what the PC is sending to the TV, because PC signals are not the same as high def.

Your PC should be set to a resolution as near to 1366x768 as possible. My PC allows 1280x768 and 1360x768. Try one of these for best results.

There are no settings on the TV to solve this problem.

Feb 06, 2008 | Philips Magnavox 42MF521D/37 Television

2 Answers

Hitachi 57F510


Overscan is a staple in all CRT triple gun RPTV tech. It has to be taken in, if you want to see all of the picture possible in this medium. On ceiling mount front projection they have equipped them with all they need, they didn't need to do overscan, but with RPTVs this was not possible at the given price points. Overscan was necessary, to hide all the flaws out there at the edges, and they could not afford to pay their factory calibration techs to do it right, at the price points of the RPTV marketplace.

Unfortunately, when you take in that overscan, the picture gets hosed beyond belief, and then needs to be completely redone. It takes several hours and has quite a learning curve, a different one for each brand.

It is always available in my calibrations on all brands, but as an extra, at extra fees, to cover the extra time and experience/expertise required.


Mr Bob

Feb 03, 2008 | Hitachi 57F500 57" Rear Projection...

1 Answer

Blue doesn't seem to line up


Blue convergence IC is bad....change both,,,original number
Stk392-110 replace with upgrade Stk394-160E Hitachi part
# CZ 01341 ....also check B+ feed resistors for over-heating
................................T.

Jan 27, 2008 | Hitachi 43UWX10B 43" Rear Projection...

1 Answer

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

Jan 02, 2008 | Hitachi 57F500 57" Rear Projection...

1 Answer

Hitachi 57f500


You may have a bad convergance chip, a bad CRT( picture tube ), CRT Board ( board pluged into the picture tube),or a bad video chip. Although this is somwhat a common problem on this model of set, I have found many different fixes. Sorry I can't be of more help. Good Luck
Ed
NC Electronic
Mills, Wyoming

Nov 12, 2007 | Hitachi 57F500 57" Rear Projection...

1 Answer

Overscan is off a bit


Does's the set have a repair history? If it was previously serviced , the capacitor which is connected between the emitter and the collector of the horizontal output transistor transistor might have been changed with the wrong value, which would cause and overscan situation.The service menu for this set is even hard for technicians to use. It' my opinion if the service manual will not correct the horizontal width, the wrong capacitor was probably installed. Scrivitron (also these sets are known for the forementioned capacitor to short , flame or open.

Jul 09, 2007 | Philips Magnavox 27MS343S 27" TV

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