Question about Mitsubishi WS-55511 55" Rear Projection Television
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Posted on Jan 02, 2017
Hi there, this is most commonly known as power board failure in the industry. the capacitors are blown. if you are experienced in inspecting circuit boards this will be helpful. you will have to disassemble and pull the power board and preform a break point test. the bown capacitors are easily picked out. they will be swollen and discolored. If you are not comfortable with disassembling this set, i suggest a service call. just tell the tech you are experiencing a power board failure.
Posted on Mar 07, 2009
the capacitors on the DM need to be replaced. Very easy repair you can get the repair kit at this link which is for your model it contains the replacement capacitors and step by step insturctions.
Posted on Apr 03, 2009
Replacing those capacitors usually solves the problem however sometimes the issue is back in the power supply. Make sure the 12 volts be supplied to the DM module is present. If not you'll need to fix the power supply.
Posted on Jun 16, 2009
1.) Most of these sets have a receiver built into the back(large metal box on left side as you look from the back.)
2.) Two possible reasons for green light constantly blinking(it is the receiver booting up if the set is disconnected from power---light should blink for about 70 seconds and go out).
3.) First reason: The recessed micro switch on the keyboard marked reset may be bad--does not happen a lot but it does happen. Easy way to see if this is the problem is to remove front speaker grill---and inspection plate behind it---from the keyboard you should see one or two groups of wires(they come from the keyboard) follow them to the right and unplug both(they are different and marked with letters). This takes the keyboard out of the circuit---you should still be able to turn the set on with your remote(remote receiver is behind the screen.) IF SET NOW WORKS YOU HAVE TWO CHOICES--USE IT ONLY WITH THE REMOTE OR HAVE SOMEONE REMOVE THE FRONT KEYBOARD AND UNSOLDER THE RESET SWITCH--the switch can be replaced without replacing the keyboard(it is a small circuit board with all the micro switches on it.)
4.) If disconnecting the keyboard does not fix the trouble---you have a problem in the "Receiver"----it happens on these sets and usually is repairable--Mitsubishi no longer sells this part and it was very expensive when they did---if disconnecting the keyboard does not cure the problem---let me know and I can give you options for getting the receiver repaired.
5.) Let me know if you have questions and if you need more advice reply to this post here.
I do this here for free so if this information helps you take a minute to give me a vote here---I am here to help people.
REGARDS, SD TECH
Posted on Sep 16, 2009
This set has a lot of problems but I have news for you that I recently discovered from a authorized Mitsubishi repair center---
Mitsubishi has had so many problems with this set that now they sell a complete Chassis replacement for this set for about 200 dollars--You will have to go to a authorized center---no more trying to fix individual boards in this set...if you are in doubt--Google the model number and you will see all the problems this set has had---
Contact Mitsubishi and I think the best thing you can do is get the Chassis replaced--
If you have more questions about what I am telling you let me know---I think Mitsubishi is trying to avoid the class action lawsuits that are in progress against them for this model.
REGARDS, SD TECH
Posted on Oct 08, 2009
Testimonial: "Thanks for the tip. I left it blinking for 2 hours and tried reset again and it worked. But next time i'll use your tip to find the prob."
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