Question about Mitsubishi Televison & Video

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My WS-73513 Mitsubishi suddenly goes bad no picture and no voice just a blue screen. Close and restart will work again for few minutes and goes out again.

Check input or source and power settings

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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ctf1800
  • 4402 Answers

SOURCE: mitsubishi ws 55819

Bad convergence ic and should replace caps also

http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

caps:
· http://www.chrisandnat.com/Projects/BlinkingTV/blink.htm · http://www.jeremyburns.com/Mitsubishi-Green-Blinking-Light-Fix.pdf
· http://www.fixya.com/howto/h159332-mitsubishi_dm_board_repair
· http://hdtvoice.com/voice/showthread.php?t=32186
replace DM

Posted on Jan 16, 2008

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Slinteriors
  • 8617 Answers

SOURCE: TV screen goes blank but power stays on

Sounds like the CRTs are going into protective blanking due to the vertical output ic needing to be resolderd. Try resoldering the vertical IC that may possibly fix the issue.

Posted on Jun 15, 2008

  • 19 Answers

SOURCE: distorted picture on a mitsubishi ws-55613 tv

hi!! you tv need be replaced regulator 9v ic, in signal board,this sufermount 3 pins ic are located in top view ,rigth bottom side.
part # BA09
location # IC9C25.

100 % THAT FIX YOU TV.

Posted on May 26, 2009

asnowman
  • 788 Answers

SOURCE: Mitsubishi WT 46805 ~ Picture gone..... :0(

There are two and sometimes three very large IC’s that control the convergence in a big screen set. I think that you have two that are on the board in the center of the set. They are secured to a very large aluminum heat sink.

There are two ways to repair intermittent connections on the convergence IC’s. I usually remove the board with the convergence IC’s on them and then and solder the connections. The other method is to tilt the circuit board and solder them while still installed in the chassis.

If you remove the board and repair the connections, be careful to remember which connections need to be made when you replace the board. Mitsubishi uses a lettering system, so it should be easy.

If the problem remains after you have made the repair, it is possible that the pins on the IC’s have become loose. In this case the IC’s need to be replaced. I have seen this on several occasions.

If you choose to repair the set yourself, be very careful of the high voltage that can be stored in the capacitors, and CRT’s. This voltage can be as high as 30,000 volts.


I hope this information allows you to resolve this issue.
If I have helped you, please help me, and rate this suggestion the highest FixYa rating. (Two Thumbs Up) If you cant rate this post with the highest rating, then please comment to this post and I will try to help you further.

Posted on May 29, 2009

SD Tech
  • 14553 Answers

SOURCE: screen turns blue

You may have a bad blue picture tube but there is a way to deal with this first---This is a 2001 model and does not have a light engine---I did one of these with the same problem a week ago---the set has a black plastic block with six controls---three are Focus(red,green,blue) the other 3 controls are Screen controls(red, green, blue) Someone has to remove the entire piece on the front of the set below the screen(usually a plastic part) most of the time it is secured with 3 screws on either side of the set in the back; once you remove the screws the entire piece should pull out(pull from right to left(it will not fall off or come out easy--it is held in with several large plastic pegs) With it removed there is an inspection plate with 4 screws-----the screen/focus block is behind it.

You need to look very closely at the block to identify the focus versus screen controls----one row left to right will be marked Focus and the other row left to right will be marked screen------YOU need to locate the Blue Screen control(they are black like the block) With the set on(be careful) go to a video input with nothing connected---if you see a blue screen as well as the input number turn the BLUE SCREEN CONTROL SLOWLY TO THE LEFT UNTIL THE BLUE is gone.

If this cures the problem you may only be buying yourself some time----if the blue picture tube is bad sooner or later this trouble may return----I have seen sets where this was adjusted and the set worked for a year or more with no repeat of the trouble----replacing the blue tube would likely cost you 400 - 500 parts and labor.

I do this here for free so if this has helped you take a moment and give me a vote here.

SD TECH

Posted on Sep 03, 2009

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1 Answer

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Its a V24 chassis---it will blank or turn the picture tubes off for a number of reasons--all self protection. Someone would have to look---I presume when you say no picture you mean no light of any kind on the screen.

If no raster (no light of any kind on the screen) problem could be in Vertical or Horizontal sweep circuits which covers quite a few possible parts.

If the set had for example a blue screen only or is stuck on one input there is always to possible hard reset but that will not cure no raster.

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ONLY 1 or 2 things can cause this problem----First thing to do is remove front speaker grill--it should pull out and is secured with plastic pegs--behind it you will find an inspection plate---Notice the one or two pairs of wires coming from the front keyboard2.gif of the set---remove the inspection plate and follow the wires to the right--you can unplug both plugs(most have two and they are marked with letters and different sizes so you cannot get them wrong)

The idea here is to remove the front keyboard2.gif with its reset button etc from the circuit---You will still be able to try to turn the set on with the remote---these sets have a Receiver(large metal box to the left as you look from the back) and if the power goes out the green light will blink for about 70 seconds and then go out---it is the Receiver booting up.

If disconnecting the keyboard2.gif allows the set to turn on--you have a bad reset switch and two choices---either operate the set only with the remote or to remove the front screen and get at the reset switch (it is tiny) and remove and/or replace it.

If disconnecting the keyboard does not restore the set to operation---the receiver is bad---there are 4 or more caps and some pico fuses that can fail in that unit---Mitsubishi no longer sells or repairs these--if it is bad and not the caps there is a company you can send the unit to and have it repaired--if you need to know their name let me know---you can call them and get a quote for repairing the receiver.




SD TECH

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1 Answer

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Most likely you have picture tube coolant leakage on the power board. Have an authorized Mitsubishi service shop take a close look.

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1 Answer

TV screen goes blank but power stays on


Sounds like the CRTs are going into protective blanking due to the vertical output ic needing to be resolderd. Try resoldering the vertical IC that may possibly fix the issue.

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sounds like convergance ic's mits is also know for bad caps
1000uf @ 16v check for bulges on top of the cap
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

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Go into the menu and see if your closed captions are on and set to "TEXT". Setting the closed captions to "OFF" should solve your problem.

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