Question about Mitsubishi WS-55805 55" Rear Projection Television

2 Answers

Convergence issue I have a convergence issue (WS 55805)only when the set is turned off and back on. If I power cycle the AC and turn the set on the convergence is fine the entire time the set is on, but if I turn it off and back on at any time, convergence is out. I have had the chips replaced, some voltage regulators and some resistors,caps. Any Ideas Thanks Steve

Posted by on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Mitsubishi Master
  • 8,457 Answers

Sorry,u must replaced the STK convergence ICS again,some of the ICS pins are shorted that why u are not sustancening the voltage when ur tv it on/off and the AC power are going to it.

Posted on Apr 28, 2010

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Mitsubishi Master
  • 3,459 Answers

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...

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

Convergence issue - 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

Posted on Apr 22, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

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!

SD TECH

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

2 Answers

My bigscreen TV Mithsubishi model WS-55805 just


First thing I do on these is to disconnect power cord,pull off the front speaker grill and remove the small door covering the tubes. Get a bright light and look for coolant leaking down from the metal shields that cover the high voltage anode on the picture tubes. There is a chamber on each tube that contains ethylene glycol or antifreeze to keep the tubes from overheating. Sometimes the gaskets get a leak and coolant drips down onto the circuit board. Look very closely at the board to see if there are any drips below the tubes. If this is the case you may consider replacing the set but some can be saved by cleaning the board and sealing the leaks. Have a pro look at the tv if this doesn't help because all you can get online is a guess. Second thing that could cause this is a failure in the vertical or convergence circuit that would entail part replacement at a cost of 200-300. If you find no coolant on the circuit board that means the convergence circuit or the vertical circuit needs to be rebuilt. These sets are known for having bad capacitors on the boards that eventually have to be replaced when a failure occurs. Good luck, Russmann.

Apr 28, 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 | Televison & Video

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.

I HAVE START TO FINISH, STEP BY STEP INSTRUCTIONS FOR THIS REPAIR for most of these sets.

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.

SD TECH

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

1 Answer

I have a WS-55805. Was working great, then suddenly no picture, just audio. When I press the Menu button, I get the menu but I see three separate colors for each menu item. Could this be the lamp, or...


This TV does not have a single lamp but a set of CRT tubes.

If you get menu displayed on wrong clors or colors are not matching then it is either a bad CRT, a bad CRT high voltage power board, or sometimes a problem with convergence board and convergence ICs, however in this last case you usually get no picture and no sound .


You can get service manual from link below:

Mitsubishi - CRT Projection Television - WS-55805 Service Manual

Apr 10, 2009 | Mitsubishi Televison & Video

1 Answer

Convergence...........


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...

1 Answer

HD issues with ws-55805


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 projeciton 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 photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Sep 30, 2008 | Mitsubishi WS-55805 55" Rear Projection...

1 Answer

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...

3 Answers

Picture Problem


i have the same problem. what was you solution? did you get it fixed?

Dec 24, 2007 | Mitsubishi WS-55805 55" Rear Projection...

1 Answer

Mitsubishi 42 in hdtv


Convergence issue = STK IC's involved on center circuit board.
You can solder the connects, but that is a temporary fix.
Correct solution is to replace IC's....need the exact model # off
the back of the set to verify part number...could be STK392-570
quantity 2 or STK393-570 quantity one...................T.

Dec 13, 2007 | Mitsubishi WS-55805 55" Rear Projection...

Not finding what you are looking for?
Mitsubishi WS-55805 55" Rear Projection Television Logo

115 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Televison & Video Experts

matt martin
matt martin

Level 3 Expert

1198 Answers

The Knight
The Knight

Level 3 Expert

69736 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Mitsubishi Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...