Question about Mitsubishi WS-55315 55" Rear Projection HDTV-Ready Television

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WS-55315 Red Gun Slow to come on

I have a 3 yr old 55315. When I turn it on you can clearly see that the red gun is not on. After about 5-10 minutes, the screen turns completely red for about half a second and then the picture is great. Is there a known problem with the guns?

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Re: WS-55315 Red Gun Slow to come on - Mitsubishi WS-55315 55" Rear Projection HDTV-Ready Television Projection Televisions

After 2 minuts it lost convergens

Posted on Apr 03, 2008

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Re: WS-55315 Red Gun Slow to come on

You could have a bad transistor for the red gun on the neck board or possibly a cracked solder joint on the transistor. The red gun may need to be 'cleaned' by a rejuvination process. The guns can get a buildup on them after time that needs to be burned off to bring it back to life. In some cases, if the coating on the gun is very thin it can be burned completely off during a rejuv. process leaving it totally unusable. It is possible to use a charged capacitor to 'zap' the guns to attempt a rejuv., but it may need more than what a capacitor can give it.

Posted on Mar 13, 2008

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1 Answer

The picture screen is green and red.

It sounds like one of the three color guns has failed and based on the fact that you have red and green that would leave the blue gun as the culprit.

Feb 16, 2016 | Mitsubishi WS-65807 65" Rear Projection...

1 Answer

I have a Mitsubishi WS-55315 55-inch tv that suddenly without warning the picture seems to have lost all red color. The picture seems clear but it is mostly green in color. The problem is intermittant...

Check the componet cables if you are using them for video from the cable box, the red may of came loose.Also you could have intermittent connection the video processor IC or as we techs call it the jungle IC. It is responsible for producing all the small singals used by the set.Tapping with the handle of a screwdriver on the signal board may lead you

Jul 21, 2011 | Mitsubishi WS-55315 55" Rear Projection...

1 Answer

I have a Mitsubishi WS 55908 and is has lost its ability to show the color green. What could be the problem?

Hi jazz836,
You're unit has three color gun inside, the red/blue/green gun, since you haven't a green color, green gun is dead. This is caused by faulty resistor, tube, transistor, bad solder joints. If you have necessary tools and test instrument look first for bad solder joints in the neck board, re-solder all cold/dry joints, unplug then re-insert all cable connected. Test the parts in that board and also the tube.
If you can't do the job yourself I would advice you to look for a technician to isolate the problem.
Hope I helped you.
Have a nice day!
Thanks for using Fixya.

Mar 10, 2011 | Mitsubishi WS-55908 55" Rear Projection...

1 Answer

Blue and red screen

The Green picture gun tube could be bad. It takes a Red , Blue and Green gun tube.

Aug 09, 2009 | Mitsubishi WS-55613 55" Rear Projection...

1 Answer

How can I diagnose the power supply unit in this set? I suspect it is the cause of my problem. Error code 23, screen shrank in and out a couple times and turned off a couple times, now wont come back on....

Hello hellian82,

The problem is the arcing red tube, it can be replaced or rejuvenated by qualified TV technician. The arcing is the result of a spark gap being formed in the picture tube resulting in a short between the HV anode of the tube and ground. Replacement of the tube is preferred, but the tube can be rejuvenated using a CRT rejuvenator.

I hope this helps,

Thank you,


Jun 23, 2009 | Mitsubishi WS-55809 55" Rear Projection...

2 Answers

Red convergence problem - Mitsubishi 65

It sounds like your red gun might be close to going, we had the same problem our tv. The red was off and couldnt really be adjusted but the others were alright. We were told that the red gun was nearing the end of its life and it could cost upwards of $1000 to fix, so we just got a new tv. i would suggest having a tv tech come out and look just to make sure, but thats wut it sounds like.

Oct 18, 2008 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Only red bulb working

Tried restoring to factory settings? Only blue was working for me and it helped *shruggs*. You can try... On the remote, press MENU then 1 2 3. Hit Enter. And it's restored to factory settings :]

Aug 24, 2007 | Mitsubishi WS-55315 55" Rear Projection...

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