20 Most Recent Mitsubishi LT55154 55 in. LED EdgeLit LCD HDTV Questions & Answers

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electro-medical.blogspot.com/

Get software from Mitsubishi site and upload as per process

Start by going to the menu and check the audio settings. My guess you need to set it for internal speakers.

Short circuited component/s at its main board. Contact the authorized service center or any service technician. This is not a user repairable fault. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy. Surf the site with patience. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Fault with serial data; serial clock signal path. Serial clock path is OK, but data path must be traced. Seek tech support. This is a very skilled work.

Good day!!!!


Please try to play a dvd movie or a recorded tv shows on your tv.

if the problem persist,your problem is not on the cable.

try to open the cover of your tv and look at the power supply inside.

you have better chances if you have failing capacitors on the power supply.
look the actual image and look if it is bulged on the top.
replaced it with the same type,ratings and value.

i hope this solution will be helpful.please don't forget to rate my answer.

thank you and good luck

This tv have a design problems with it Light Projection Engine Block.This Light Engine Block have a design flaw with the IC chip the tvs corporations they're putting it in the tvs.This problems happen to many to other tvs compannies too like Samsung,Toshiba,Sony Big Screen DLP tvs too.The whole Light Projection Engine block have to be replaced or change the IC chip.This is a very expensive fix,because the tv Light Projection Engine Block is the brain for the tv.Call them up and talk to them make a deal with them to help u with repair cost.This problems with dots apearing on the DLP tv big screen is not a new problems,have been NEW on the Youtube video site for a few years now.

Maybe you have enabled automatic shutdown after some time.

The lamp is not enabled possibly due to the colour wheel motor not turning. Any broken glass jamming it? Or the lamp ballast has failed due to an old/worn lamp.

Most likely you need to replace the projection bulb. You can find them online. DLP sets are famous - or infamous - for burning out the bulbs/lamps.

Your Mitsubishi VCR HS-U580 looks to have a problem with the information rollers and drum. Here are some things to check: Look for something blocking the VCR or cassette compartment that would possibly be stopping the guide rollers. Check the belt that drives the VCR mechanism. If it is loose or broken, you may also need to substitute it. Clean the video heads using a head-cleaning cassette to make certain they're not dirty. See if the drum motor is working. If it is not spinning, there may be an issue with the motor. If the trouble persists, it's an exact idea to get assistance from a professional technician or contact Mitsubishi's purchaser support for advice. Be cautious when dealing with electronic devices, and if you are not certain what to do, it's great to get assistance from an expert.

i think finding a downloadable service manual for your Mitsubishi HS-U580 VCR might take some searching, but here are a few options: Check the official Mitsubishi website's support section. They might offer downloadable manuals for older models.Many online appliance parts stores like RepairClinic or AppliancePartsPros stock service manuals for various brands and models. Search for your specific VCR model to see if they have it available.Websites like ManualsLib or iFixit sometimes host user-uploaded service manuals. While the availability and quality can vary, it's worth checking. If online options fail, consider purchasing a physical copy of the service manual from online marketplaces like eBay or Amazon. Remember, some websites might charge a fee for downloading manuals. Always be cautious of suspicious websites and download from reputable sources.

http://www.manualsonline.com/support/mitsubishi/vcr/manual-262223 Try this site for your manual

You can purchase a replacement power cord for your Mitsubishi model #LT-55164 from TVserviceParts.com. The part number for the power cord is 246C638010 and it costs $18.40.

Hoping you did not have electric overload that damaged the power supply, try unplugging the set and push the button On until no lights indicate anything. Then wait about an hour so the capacitors would empty themselves further. Next plug it back in and see if this worked. It is never wrong to push the edges a little in finding if the cables that go around the screen have a problem at that point. When one opens the TV (off power and unplugged) these flat cables should be checked for corrosion and right position in connectors. Corrosion is caused by little moist only, combined with the electricity. Then see if capacitors from the power supply, or any at all, have expanded tops. Those are the larger and smaller towers with metal on top that is divided in three parts. New ones alike can then be ordered but replacing requires basic skills. Further examples can be found on YouTube. Capacitors are common to fail early. Those larger ones have dangerous high voltage and can hold their charge for long span of time. it is not uncommon for devices like this to fail after being off.

Question edited for clarity. Two questions merged into one. For sale https://www.google.com/search?q=Mitsubishi+HS-U781 Only a 780 Manual https://www.google.com/search?q=Mitsubishi+HS-U781+manual No Service Manual, but there is for 778 or U71 https://www.google.com/search?q=Mitsubishi+HS-U781+service+manual Specs https://www.google.com/search?q=Mitsubishi+HS-U781+specs ..