20 Most Recent Mitsubishi VS-5043 50" Rear Projection Television - Page 2 Questions & Answers

I had a Sony that did the same thing. It ended up being a blown fuse on the board. Check to see if any of the fuses are blown. They're cheap and easy to replace usually. Make sure you use the same amperage fuse when replacing.

Its probablly your power supply, try unplugging it for a couple minutes and then plug it back up. If that doesn't work there are a couple other things you can try but they're all internal... The parts to fix projection tvs now are unrealistic to repair the tv, for the price you can buy a new flat sceen for about the same amount

Your projection tv uses 3 small CRT tubes - tubes like those from old tv's but smaller and brighter. 6 years is about the average life of these tubes - when they age their functioning adjustment point shifts and things that shouldn't be visible start to appear on the screen and that perturbs the functioning of other elements of the tv
In your case the return beam has become visible and it makes the synchronisation of the image iffy - the result is disturbances in the signal that comes to the tubes = the bands you are seeing.
The only thing that can be done to fix that is to replace the tubes one more time. Unfortunately it will cost you over $600 and they will be extremely hard to find - they went out of production a long time ago.
In my opinion you should just accept that your tv has had an exceptionally long life that is coming to an end and start saving for a new one.

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 photos of convergence problems






CONVERGENCE SOLUTION

You can see some more examples and find a fix using this link on Fixya - CLICK HERE

u401 IS THE LOCATION OF THE IC which is mounted on a small metal heat sink---chip should have 7-13 pins depending on one used.

It will usually be marked top and bottom on circuit board and is usually to the right of the middle of all the boards.

I would suggest based on the model number that if you locate it look closely at the solder connections that connect it to the board; a lot of these sets develop broken connections there from the heat the chip produces--you may only have to resolder the chip to fix the problem.

Let me know if you need help---if this has been helpful rate this solution as "very helpful" as I do this here for free.


REGARDS, SD TECH

Hi,

This model is equipped with a self-diagnosis feature to help with diagnosis of shutdown problems, to activate this turn the unit on let it shutdown then press the input/or device and menu buttons on the front panel simultaneously and hold them in for 5 seconds after 5 seconds the power LED on the front panel will blink a two digit sequence. This will be one set of blinks a short pause then another set of blinks, this will repeat 5 times.

Let me know,so that we could Proceed.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Hi.

You need to click the menu button on original remote, and enter a numeric code. This will enter service mode, and perform a factory reset procedure.

Factory reset code for this model is 1370 (2358 to enter service mode and reset from there). Here codes.Model-Chassis_Cover 2005.p65

Service mode is accessed using the original remote. If you do not have the remote purchase it here:

Mitsubishi 290P066010 290P066B10 Remote Control

The detailed procedure to use service mode feature is described in the Service and Repair manual available here for $7:Service Manual ...

The most likely cause is shorted convergence chips and possibly a few pico fuses.

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 a convergenece repair kit with instructions from the links 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

You can see some more examples and find a fix here http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

official web page give you in pdf .

Try MCM electronics for a remote.

FBT means flyback transformer also called high voltage transformer. This is the most dangerous part to deal with and you have to be extremely careful. You see the suction cups at the end of the thick wires? You have to squeeze and pull them to disconnect the wires.
I did not understand your second question though. Can you get me an image(Upload a highres pic to imageshack.us and get me the link) so that I can help you remove it?

Sai.

more than likely, your tv has been bumped with just enough force to offset the calibration of the guns. you will most likely need to take this to an expert in order to have it re-adjusted. if it is minor and something you can live with feel free to ignore it, otherwise, like i said, take it in. it is not something a non professional can handle as adjustment is very precise and requires access to the inner part of the TV. never open a TV unless you know what you are doing unless you want to risk death by electrocution. even when powered off, the TV set still contains lethal amounts of electricity.

Howdy,

Cause 1
1. REPLACE L5A00,IF COIL IS WRAPPED IN BLACK TAPE,WITH PT#351P138020, (THE NEW COIL SHOULD BE WRAPPED WITH YELLOW TAPE).THIS IS LOCATED ON THE MAIN-PCB.

2. CHECK FOR LEAKEY D5A21, PART # 264P045040, IN THE BEAM PROTECTION CIRCUIT ON THE MAIN PCB

3. CHECK PIN 6 OFF IC5A01 FOR 22.2 VOLTS DC IF LOW CHECK D5A09, PART # 264P244030 ON THE MAIN PCB.
4.
More than likely your TV has "COOLANT" (ethylene glycol) on the circuit boards. This fluid comes from the CRT's (picture tube) this fluid is used to keep the CRT's cool, such the name. This fluid from the CRT's leak when TV is on for long periods of time, the chamber expands and the seals leak.

One can remove this fluid by using "acetone" & small brush. The fluid is hard to see, use bright light, they spots can be smaller then a DIME. Also, the fluid can corrode the parts and traces on the boards. To protect the TV in future place heavy plastic or thick cardboard over affective area, make sure TV has proper air flow around TV.

If after the fluid has been removed and TV still does not work, call an Authorized Service Center to come out and repair TV after giving you an Written Estimate. The boards are not available.

Always try resetting the TV by unplugging it for one minute then plug back into A/C outlet and ALWAYS UNPLUG TV BEFORE ATTEMPTING ANY REPAIR ON THE TV.

Good Luck, Big IRISH.

There are a few low value 1-watt flameproof resistors in the convergence yoke circuits. They typically range from 1 to 3 ohms. An open resistor will cause the respective color to be non-responsive. Also chack that you have the convergence yokes re-connected to the correct connectors on the board.

What you might be experiencing based on your symptom sounds like a damaged convergence IC.

With any Projection Television that has a damaged convergence IC, you do not want to continue the use of the set. If the IC’s continue to fail they will cause a short in the power supply and cause your television to not power up, and possibly damage the CRT’s in the set.

With that aside I have some support suggestions that I have put together that may help you make an informed decision.

You should be able to get a local service center to repair this at your house for between $350.00 - $450.00, If you want to repair this set yourself, I have some instructions below that will be a help to you.
While it is not a very hard repair, this repair can be a bit tricky. If you have a 45W soldering iron, solder, solder wick, and heat sink compound you can repair it yourself.

When you remove the old IC's, please be sure to remove all of the old heat sink compound, as it can act as an insulation for the new IC's and cause them to overheat. I usually clean the heat sinks with alcohol and a small rag.

There are two and large IC’s that control the convergence in a big screen set. Some of the newer sets only have one. If you only have one, it is right in the middle of the set on the center circuit board. They are secured to a very large aluminum heat sink. They will have a part number stamped on them that will start with an STKXXX-XXX, like STK392-110.

Along with the convergence IC’s there will also be some associated components that will need to be replaced as well. There are some resistors that are part of the convergence circuit that will be open and need to be replaced. Most likely these will appear charred in the center. If you have an Ohm Meter or a DVM, check all the resistors that are close to the IC’s and you should be looking for either ones that have opened or have changed values.

If one of the convergence IC’s are found to be bad, I would replace them both, if one has gone bad the other may go soon. I usually order my parts from Andrews Electronics in California, they will have the OEM components that you will need.
Their site is http://www.andrewselectronics.com/welcome.aspx
And their phone number is a 24-Hour Order Desk: (800) 274-4666
I recommend the phone order so you can talk to the person about the different types of IC’s that are available.

I would also advise that the convergence IC’s be OEM or better, just because they are cheap does not mean that they are a good deal. I have seen the cheap IC’s fail after a short time, even though they look exactly like the OEM IC’s. I think that the bottom line is that you will get what you pay for when it comes to the parts.

You can also try http://www.tvrepairkits.com/ , I have not tried them yet, but they do carry OEM or better parts.


I hope this information allows you to resolve this issue.
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asnowman

I have attached some photos of really bad convergence problems; your picture may not be exactly as bad as these.

there is a optic coupling between the tubes and the lenses
it however is not mineral oil
and the fluid that is between the lenses is poisenus
so be careful how its handled

its a glycol base mixture and it doesnt have to be changed every couple years
some brands do seem to have a problem with it but Mitsubishi did not

cleaning the mirror and lenses of course will help give the best picture
i have never changed the fluid in a Mtsubishi unless the tube was leaking
its not recomended

just go to mits site and download the manual. i have a mits too and your manual is there. just use all info u have to search.

ur Power ic inverter board is dead.
u need a new one.

Ur Horizontal/Vertical ic stablizer is dead or it supporting componnents.90% is ur IC.

Its a convergence problem. You may want to check the site www.tvrepairkits.com. Every thing they said every description was right on. The best money I ever spent and the confidence you get from doing it yourself, Its a great feeling of achievement not to forget the live messenger support is instantaneous, friendly and informative if you need to fix your tv go to tvrepairkits.com I fixed a philips 60 inch tv in 45 minutes, The convergecne chips were bad thanks a million. You guys saved me 250.00 bucks. I'll be recommending you to everyone I know!