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Convergance problem on hitachi 51

Asked at earlier date about convergance issue. very strange, sometimes we turn on set and within 30 seconds, picture is perfect, other times longer. any chance there is a factory reset on t.v. that would put it back when picture is clear?

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Is this a CRT projector or other?
If its a CRT you seem to have a power supply failure hat gets worse when it warms up. no amount of resetting would help that. 

If its not a CRT projector I dobut its a convergence issue but rather poor cabling causing the color to fall out of sync.

Posted on May 02, 2008

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51 Hitachi rear projection 6 years old, can't get it to focus, Has sound. Can only get the picture to come in abpout 80%. Around the perimeter, sports scores and subtitels are not readable. Used the fucus...


Flash Focus magic button no longer work.The tv have a problems known as a convergence problems,it dead.Tv colors lines R,G,B mis alignment,have colors shadows pictures or 3D pictures problems.The tv convergence board the 2 STK convergence ICS and some or all it resistors are dead.These parts,must be replaced on the tv convergence board to solved the tv convergence picture problems.The shop,will cost $300-350 for parts and labors.

Oct 13, 2010 | Hitachi 51F500 51" Rear Projection...

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Hitachi 51'' rear projection convergence chip problem


The most likely cause is shorted convergence chips and possibly a few pico fuses.

These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony,Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer Hitachi,Mitsubishi,Zenith and others.
You can get a convergenece repair kit with instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2
Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

You can see some more examples and find a fix herebb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Apr 18, 2010 | Hitachi 51F500 51" Rear Projection...

1 Answer

I have a Hitachi 51'' tv the picture is bluried.


Can you make it clearer by adjusting the convergence through the menu? if not you need a convergence repair generally between $200-$300.

Sep 22, 2009 | Hitachi 51F59 51" HDTV Projection...

1 Answer

Hitachi 51UWX20B no sound, no picture, blinking green LED


The 392-150 is a higher current device then the 110---you can use either--this is normal in the hitachi sets---I usually replace both with 150's---check the led that does not light---should indicate which voltage source is bad---if it is one of the 2 voltages for the convergence ic's(one is a positive and the other a negative voltage) then the convergence Ic's may be bad---look for any discolored resistors around the ic's---one way to tell if it is a convergence ic is to de-solder both ic's and see if the set turns on(the convergence will be out the window) but if it comes on change both and do the alignments with the Hitachi remote. By the way----the led should have a location number printed on the top of the circuit board.

Aug 07, 2009 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

Hitachi 51G500A and the screen when blank


Hi I am vortash I have just looked at the service manual for this set and it actually does not use a bulb as it is not an Lcd or DLP projection TV . It actually employs three CRT based tubes that produce the picture with automatic focus and convergence systems . If you do not have the manual for this set you can download it from http://www.safemanuals.com free of charge It says that if you have sound and no picture turn the set off and unplug it for 3o seconds then replace plug and turn on from switch on set not from the wall plug switch .. as this may reset the tv and cure the problem .. hope this helps regrads Vortash

Jun 08, 2009 | Hitachi 51F500 51" Rear Projection...

1 Answer

KP 51HW40 projection TV


Projection TV sets have two very common problems listed below.

Problem #1) Convergence


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. This is called convergence.

When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired. Convergence problems are very common on all Projection TV sets including Sony, Samsung,JVC,Philip Magnavox,Panasonic,Akai,Pioneer, Hitachi,Mitsubishi,Zenith and others.
You can get more information and a DIY convergenece repair kit with instructions from the link below.

Here are some of the most common problems with these sets...

*Screen Looks 3-D
*Colors wont align
*Screen may look distorted or warped
*No Audio/Video - TV Shuts down - May also make a constant chirping sound

Problem #2 - Another common problem is dull or washed out video.

Your set may have one or more of the following symptoms....

*Dull looking picture
*White looking picture
*Halos around objects
*Red/Orange looking picture

bb0cf99.pngYou can see some more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Sep 30, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

Picture on track


The problem is an assembly called the "Flex Converter". This is not available from Hitachi, even though the set is relatively new. The converter must be removed from the set and sent out to Hitachi for repair.

Jan 19, 2008 | Hitachi 51F500 51" Rear Projection...

1 Answer

Hitachi 51f500(flicker+warp)


Most likely bad convergence IC's! Location numbers should be IK04 and IK05. Generic numbers STK392-110.

Jan 23, 2007 | Hitachi 51F500 51" Rear Projection...

1 Answer

Pulsating Picture


Your set might have loose conections ,a few places to check is the horizontal driver transformer and the convergence IC's,they develop loose conections and need to be resoldered,if you are familiar with tv service and soldering is something you could do ,some conectors might get disconected when you flip the board,but if you are not too familiar I would suggest you call for assistance from a servicer.Besides the places I mentioned I am sure the set has other overheated places that need resoldered as well.Let Us know how it goes.

Oct 26, 2006 | Hitachi 51SWX20B 51" Rear Projection...

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