Question about Mitsubishi WS-55807 TV

Open Question

I have a Mitsubishi HD 1080 Big Screen TV, Model # WS-55313 That has quit working. It would not stay on. It turns itself off, a second or less after it is turned on. I am not sure what the problem could be. It is given to me as a gift after being in storage for months. I would like to have someone come to my residence to repair it as I do not have a truck to haul it around. Any help you can provide would be very much appreciated. Please respond to Ajuziems@wmconnect.com, or by phone 702-646-2434.

Posted by on

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

TVtechmaniac
  • 140 Answers

SOURCE: turn on tv and after a minute it turns itself off

Check fuses F9A04 and F9A05 (5A micro fuse)on the board in the middle.If one or both are open than you need to change both the convergence IC's (STK392-570)along with the fuses.

Posted on Aug 21, 2007

Maanita
  • 1142 Answers

SOURCE: Mitsubishi WS-55857 won't turn on

Thank you for posting your concern details however i would be needing few more details from your side if necessary and allow me few mins to come up with the resolution.

Posted on May 19, 2008

ctf1800
  • 4402 Answers

SOURCE: why won't it work?

try this site

Posted on May 28, 2008

  • 1 Answer

SOURCE: Mitsubishi model No. WS-55807 - In need of schematic please

I have a WS-55807 that will not power up. When the power button is pressed I hear a click from the back of the set, the timer light comes on and 3 seconds later I hear a click from the back of the set, and the timer light goes off. I started checking power to the unit with a voltmeter. For those intersted I have attached scematics: I verified that the PCB main fuse is good and there is 120V at point PT. 9f453c1.jpg
From what I can tell is happening, the power button is pressed and the P-ON transistor is given a signal to conduct which causes K9A50 to close. K9A50 opens after about 3 seconds.

I am looking for other troubleshootinng steps. I have checked fuses F9A01 and F9A06, both are good. What are some other things to check for? Where does the P-ON signal come from?

In the switched supplies regulator circuitry I found fuses F9A04 and F9A05 blown (denoted by red lines thru components). I jumpered around F9A04 and F9A05 with good 5A fuses and the TV powered on. However when the set was plugged into an outlet there was a huge power draw (sparks from the outlet).
1c13374.jpg
After jumpering around the blown fuses, the TV stayed powered on for about 30 sec and then powered down. I pressed the power button a few more times and the same result. The TV stayed on for only 30 sec.

I pulled the middle PCB whichs holds these circuits and I found the
D9A60 diode open and IC8C02, one of the convergence IC's fried. I don't know if these were like this before or after jumpering.

I replaced all bad components and I am back to square one. The K9A50 relay stays closed for 3 sec and the set does not power on any further.
Comment by TV_ITGuy, posted on Dec 19, 2007 Thanks for the advice ctf1800. I have read several posts that speak of the DM unit. I have looked in the back of my set and the DM unit is not in the location shown in the pictures. dcb8806.jpg
As I hope you can see in this picture, there is no DM unit to the far left, just open space. Also the service manual for the V17 chasiss does not speak of a DM module.

I checked the reisitors on the output of IC8C02 which are a couple of 3.9 ohm resistors in parallel. When I test them I get approximately 1.9 ohms, which is what it should be with them being in parallel.

Please let me know if I am off base on any of this. Thanks Comment by TV_ITGuy, posted on Dec 19, 2007 Also, I have replaced both of the Convergence IC's when I replaced the fuses and diode. postsolution.gif Post Solution
addwq.gif Work Queue -->sameproblem.gif Have the same problem? --> Have the same problem? Click Here
X This Problem has been added to the Share Your Expertise Page under "My Work Queue". OK Best Solution posted on Dec 19, 2007 2%20stars.png
c48ee42.jpg
ctf1800
Rank:wizard_s.gif Wiz
Rating: 84%, 2716 votes
first off you should replace both convergance IC and check the resisters coming off the output if any of the resisters are bad it will trash the ic on trying to power up.
i would also replace the caps in the DM section
http://www.jeremyburns.com/Mitsubishi-Green-Blinking-Light-Fix.pdf

http://chrisandnat.com/projects/blinkingtv/blink.htm

Comment by ctf1800, posted on Dec 20, 2007 there are six fusible return resistors ranging from 1.5, 1.8, 2.2, 2.7, 3.3, 3.9 Ohms. I would lift one side of the resister out.
check for any caps that look puffy and check the horz. out put transistor.
Rating Locked! (?) TV_ITGuy has rated this solution as Thanks for Trying

Hope this helps fortuna55@aol.com

Posted on May 29, 2008

  • 13433 Answers

SOURCE: MITSUBISHI TV VS-60607

Do you get any power indicators? it may be a problem in the powersupply area, or something more serious. Start with checking the fuses there.

Posted on Jun 07, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a 2004 1080 HD Mitsubishi TV that has pink lines running across the picture.. How can I fix this.


Pink lines can mean many things, what does the set look like if you take it in the customer menu and select convergence and then advanced?


The more you tell me the better I can help. Post a comment here to let me know

SD TECH

Aug 23, 2010 | Mitsubishi WS-55313 55" Rear Projection...

1 Answer

I bought a used mitsubishi ws 55513 and when i turn the tv on is says 480i stretch. How do i use the 1080?


U don't get to chose modes.480,720 and 1080 it chose by the tv show itself.Want more 1080 must have HD package from cable or satalite compannies.

Jan 26, 2010 | Mitsubishi WS-55513 55" Rear Projection...

1 Answer

I have an Mitsubishi HD 1080 big screen tv. When


Ur power ic inverter board is dead.
U need a new one.

Aug 26, 2009 | Mitsubishi WS-65511 65" Rear Projection...

1 Answer

Mitsubishi Model # WS 65311 HD 1080 turns on then shuts off.


try holding in the menu and input/device buttons on the front of the set both together and see if it blinks a series of blinks, pause briefly then blinks a second series of blinks, let me know what the blinks were sush as 22 or 24

Mar 12, 2009 | Mitsubishi WS-65311 65" Rear Projection...

3 Answers

MITSUBISHI HD 1080 series


most likely the convergence Ics have failed. Check F9a04 and F9A05 pico fuses if they are blown you will need to replace them and the convergence Ics.They are located on the center board they are green and look like resistors without the color band. see the photoa193b32.jpg82b89b8.jpg

Feb 08, 2009 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

Cycling by itself


Pressed the ff on the tv remote...Menu 0370...be careful in selecting an option...have to make sure that what you are going to highlight or select is initial..selecting E2 reset would render your tv unusable..don't attemp to make any other changes on the service menu...JUST SELECT INITIAL..no other option should be selected on the service menu screen.

Aug 30, 2007 | Mitsubishi WS-55313 55" Rear Projection...

Not finding what you are looking for?
Mitsubishi WS-55807 TV Logo

Related Topics:

505 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mitsubishi Televison & Video Experts

matt martin
matt martin

Level 3 Expert

1208 Answers

The Knight
The Knight

Level 3 Expert

73691 Answers

Jaime Hernandez

Level 3 Expert

2315 Answers

Are you a Mitsubishi Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...