Question about Mitsubishi WS-55805 55" Rear Projection Television

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Geometry - Edges cut off

Is there any way of adjusting the edges of the Mitsubishi WS-55805? They are cut off when I view full resolution video.

I have video games, computers and DirecTV connnected via component cables. My devices are connected using the DTV input; some are sending 480p and some 1080i. The problem is same regardless.

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Re: Geometry - Edges cut off

Menu 1-2-5-9 does not even work

Also, I see what you are trying to fix (color convergence) but it doesn't help with the picture size.

Posted on Oct 17, 2008

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Re: Geometry - Edges cut off

1)power on TV

2)Push menu-1-2-5-9 in quick succession

3)Use 4-5-6- to change colors

4)Use enter to blink / unblink cursor ( blink = move, unblink =
adjust )

5)Finished? = menu out to save changes

Please rate this solution......................................

Posted on Nov 13, 2007

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1 Answer

Cannot see full picture mitsubishi

Look for a button on the remote that says either P-Size, Aspect, View Mode, Zoom or Ratio. Press the button on the remote to change the size to Stretch, Full etc..

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Mitsubishi WS 55805 nothing but blue screen and black square in middle

A full service manual is available online---I will presume you tried to unplug it for a while and then power back to see if will reset itself.

This set has three hidden menus---one is the OPTION menu--in that menu with the Mitsubishi remote you can do a hard reset of the entire set= sets all back to factory except convergence adjustments which are stored in another area--cures all kinds of oddball issues.

I can give you a link to the manual and the page numbers for the OPTION menu.

Note: the other two hidden menus are Convergence and adjustment--do not go into adjustment menu as one wrong move and poof!


Apr 20, 2012 | Mitsubishi WS-55805 55" Rear Projection...

1 Answer

Poor color quality

IF the model is WS-55805 as indicated both of the STK-392-040 CONVERGENCE chips need to be replaced and the set adjusted.

One is bad for sure and it is best to change both. Parts cost is under 30 total for this and it may be a do it yourself job if you have some skill.

I have start to finish step by step instructions that should be close enough to get the job correctly done.

Let me know----I have fixed hundreds of these sets with this kind of problem.


May 13, 2010 | Mitsubishi WS-55805 55" Rear Projection...

1 Answer

Mitsubishi WS-55805 CRT projection TV with

This problem is most likely caused by damage in the convergence output amp IC's; this model uses STK392-040. Fairly common for various fuses that protect the DC supplies for these amp IC's to open as well.

Mar 03, 2010 | Projection Televisions

1 Answer

I cannot adjust the blue with the remote. Is there way to adjust.

WS-55805 ?

Look on the back of the set and confirm the correct model number--55805 does not show as a good model number.

If blue will not adjust what ever it uses (either one or two convergence chips need to BOTH be replaced and then the set adjusted.


Double check the model number and let me know and I will tell you what parts it uses and also then be able depending on the model number to give you the instructions etc.

If this has helped you rate this solution as I do this here for free.


Dec 09, 2009 | Mitsubishi WS-55805 55" Rear Projection...

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did you replace the tw0 5 amp pico fuses F9A04 and F9A05 as they usually open when an IC fails

Jan 24, 2009 | Mitsubishi WS-55805 55" Rear Projection...

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2004 Mitsubishi WS-55813

You need the V23 Chassis DM repair kit which has the replacemnt capacitors and the instructions on how to do the repair. Heres the link to the kit. You also get the full service manual on the instructional CD as a bonus.

Jan 16, 2009 | Mitsubishi WS-55805 55" Rear Projection...

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Green shadow on white objects Mitsubishi WS - 55857 The right edge of white objects have a green shadow that gets larger as the camera pans away. I've adjusted convergence and turned off...

Its been a long time since I did it, but I believe you can adjust the green convergence grid by using the service menu. I found instructions on doing this over on the avsforum message board (years ago) so you might want to search there.

Aug 03, 2008 | Mitsubishi WS-55805 55" Rear Projection...

1 Answer

All edges are cut off in 1080i display mode

I have the same problem and have not been able to fix it either- i think it has to do with the glare screen on these TV blocking some of the viewable area.

Oct 27, 2007 | Mitsubishi WS-55805 55" Rear Projection...

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