Question about Akai PT4298HD Rear Projection Television

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Convergence setting is way off

My tv's red convergence setting is so far out of whack. Can I restore the default settings? if so, how do I do this? Is there a reset button?

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There is a interlace setting if this is set to high it gives that red smudged look please check for that setting in the menu

Posted on Jan 04, 2009

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My tv is a magnavox and we bought it about 3 years ago and it is now showing like a double picture the color is hazy and pinkish looking the model is 51MP392H/17


The problem of your unit is the convergence. Try to adjust it using the original remote control in the setting menu, then goto the convergence section adjust the red and blue convergence, you should move red and blue UP, DOWN and LEFT or RIGHT, if you cannot move them far enough the convergence IC is defective, replacing this IC will restore the original setting of your tv. This convergence IC is attach to a large aluminum plate it is the heat sink this IC has a marking of STK-#### followed by numbers, remember be careful when replacing this IC you may accidentally tampered or damage the PCB and cause much damage to your unit. Or you can contact a technician to do it for you and save you from stress good day and best regards. Try to check this link for the convergence http://www.google.com.ph/search?q=convergence+ic&hl=tl&sa=X&tbm=isch&prmd=ivns&bav=on.2,or.r_gc.r_pw.&biw=798&bih=472&ech=1&psi=JZdtTvDCPIe4iAe72sTABA.1315804977740.3&emsg=NCSR&noj=1&ei=MpdtTpa4OKKSiQfBpcjGBA

Sep 12, 2011 | Philips Magnavox 51MP392H Rear Projection...

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I have a Hitachi 43FWX20B. I can see the red is not lined up with the blue and green on the far left side of the screen. Only the red and only on the far left side of the screen. Blue and Green are OK. I...


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Projection TV sets have two very common problems. One is convergence ( 3D/Warped video) the other is CRT fluid ( Dull Video). Below are more details for both items. Also, complete repair kits with instructions and repair support are avail from site such as www.TvRepairKits.com

Common Problem #1) Convergence has gone out

Projection TV sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the video to look normal. When its out of alignment the video will look 3D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the TV menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....



  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


7859b01.jpg

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69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

You 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

Jun 02, 2011 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

Hi. My Sony Videoscope XBR's Convergence Allignment


I happen to share this same problem. The alignment of the gridlines on the standard convergence panel are completely abnormal, and if I attempt to auto-adjust the TV, it flashes different colors on the sides of the screen , and then turns off the convergence settings.

Feb 01, 2010 | Sony Televison & Video

2 Answers

Convergence on my panasonic pt47wx53g is out of whack. tried setting to default and tried the convergence steps in book. neither worked. red is especially bad. everything looks to have 2 heads 4 eyes...


Did you try the service menu convergence options or are you talking about the basic conergence steps in the manual?

I have had this TV for going on 9 years and would be happy to walk you through the steps.

Jan 02, 2010 | Panasonic PT-47WX53 47" Rear Projection...

1 Answer

55 inch mitsubishi rear projection tv red lamp out of adjustment


Have convergence IC's replaced. I believe this unit uses STK-392-570 convergence IC's Only one has gone bad but replace them both, because if one has failed then the other is not far behind, for Blue and Green. One handles Red, One handles BLUE and Grn. There are only two of them in the set, They are the two largest IC's in the entire set.

Oct 01, 2009 | RCA HD52W59 HDTV Projection Television

1 Answer

Sd-p40


Have you tried to do set the convergence with a pattern on the screen? Some tv's have the pattern built right into the setup. Others do it auto just by pushing a button. Adjusting the pattern on one side of the screen may affect the other side, depending on how far out of whack it is.

Magnets (speakers) near by will play havoc with convergence.

Peter

Aug 04, 2008 | Pioneer SD-P50A5-K 50" Rear Projection...

1 Answer

No blue auto convergence when performed by menu buttons


Projection TV sets are known to have two common problems. The first problem that is common to these sets is convergence failure. When this happens the TV will usually look 3D, Wavy/Distorted, etc. It may also shutdown and blink an error code.

The second common problem with Projection TV sets is dull video, halos around objects, white looking video, or red overpowers the screen. This is commonly caused by the fluid in the lens being clouded over.


You can find more details and solutions here on Fixya at the following link below. Or click HERE

3d884ac.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

May 31, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

Pioneer sd-533hd5 convergance


for pictures on where is the convergence settings click on this given link.

http://www.somelifeblog.com/2007/06/sony-projection-tv-red-line-repair.html

but if its the problem in convergence board then check out for this link

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm

thanks.

May 08, 2008 | Pioneer SD-533HD5 53" Rear Projection HDTV

3 Answers

Convergence


Touch-up Convergence adjustments Enter the Digital Convergence Mode (DCM) by entering 0-6-2-5-9-7-(Status or Index) on the Remote control. The following menu will appear: Select an active channel or Aux Input. A signal must be applied to the set when performing convergence. If any Customer Adjustments need to be made, the Menu button can be used to toggle between the Customer Menu and DCM. The MPOSD ADJUST is used to center the Customer Convergence grid. A highlighted cross will appear along with the Convergence alignment grid. The highlighted cross should be centered onto the center of the Convergence grid. To perform a Touch Up Convergence, highlight SELECTION and press the right cursor button on the remote. The following menu will appear: Selections STORE, RESTORE FACTORY, and RESTORE DEFAULT are not shown after selecting SELECTION. Press the cursor down button on the Remote for these selections to appear. RESTORE FACTORY loads Convergence defaults from the Factory Loaded section of the Convergence Memory IC. RESTORE DEFAULT loads Convergence defaults from the sets software. To perform a Touch-up Convergence: 1. Enter the Convergence Mode and select RED TO GREEN or BLUE TO GREEN. Do not select GREEN (Green Geometry) without placing a Template over the screen. To perform Green Geometry, refer to the Complete in-depth Convergence. 2. Use the Cursor buttons on the Remote to Navigate from one adjustment point to another. Press the Status or Index button on the Remote to select ADJUST. Use the cursor buttons on the Remote to adjust the Red to Green or Blue to Green. Press the Status or Index button again to navigate to the next adjustment location. 3. After Convergence alignments are complete, press the Menu button on the Remote to return to the SELECTION menu. 4. Highlight the STORE selection and press the right cursor key on the Remote to save changes. 5. Use the GREEN TO RED or GREEN TO BLUE selections to perform convergence when the Green CRT has been replaced.

Aug 18, 2007 | Philips 60P8342 60" Rear Projection...

1 Answer

55HX70


needs convergence ics period

Nov 24, 2006 | Toshiba 55H70 55" Rear Projection...

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