Question about Panasonic PT-51D31 TV

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Our Panasonic PT-51D31 TV has the colours misaligned. As well, the picture has become concaved towards the centre

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You have bad convergence ICs or a bad digital convergence box. This is a fairly complicated repair and should be done by a professional. Cost would be around $150 or less from a reputable repair shop. If you think that you have the training to do this let me know and I will walk you through it.


Posted on Jan 31, 2010

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Panasonic pt 52lcx66 flashes green turns on and then turns off after 2 min

Need to look at the menu on colur
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Use the directional arrows to centre the colours

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Have a panasonic dlp 3yrs old, picture is very dark and hard to see in daylight. Ajusting picture in menue doesn't help. Have noticed a slow deterioration of pcture clarity.

It is likely to be a combination of things. 1) The lamp is getting weak and should be replaced. 2) The optical pathway needs to be cleaned.

Cleaning the pathway should be done by a professional as any slight movement will cause the projector to become misaligned. Depending upon the environment where this is used, this time period is within the norms for both lamp life and cleaning.


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We have a PT-47WX51CE panasonic cinemavision hdtv 1080i and the colour is off. We see separated mainly green and magenta and the picture is warped with some lines.

All that mess in picture is due to failure of convergence output chips in this tv.
Replace convergence output ICs (two ICs) to solve picture problem. Required ICs are available in Part Store, click the link to have price info.

Jun 25, 2010 | Panasonic PT-47WX51 47" Rear Projection...

1 Answer


most likely the polarizers for the lcds have been burnt due to improper shutdown of the unit repeated times. Always use the remote or the power button on top to switch a projector off. never unplug or use the on/off switch on the back. this cuts ALL power to the unit, so if you have been using it for 5 hours and switch it off--guess what ? no fans to cool off the lcds or the lamp.

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1 Answer

Need Circuit Diagram, or convergence resistor list for PT51D31CE

they are 2.2 ohm , i have replece many of this before

Apr 19, 2010 | Panasonic PT-51D31 TV

1 Answer

Screen Image is Concave

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Sep 01, 2006 | Sony FD Trinitron WEGA KV-27FS100 27" TV

1 Answer

Panasonic pt51hx

Sounds like the old convergence problem that plaques almost every tube type rear projection TVs. These IC's are soldered into place and is not a consumer replaceable part. It should run you about 250 to 350 for a convergence repair. Good Luck

Aug 13, 2006 | Panasonic PT-51D31 TV

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