When temps inside my house drop to around 65.f my t.v.wont turn on. The led on the front shows a steady flashing pattern. I can take my hairdryer and concentrate air on the left side(looking from the back) on the metal encased board(mounts vertical and has a led on it inside) for about 2 minutes the led on the board will start to flash then go out.,then the led on the front will go out. i then have to push the reset button,then the t.v will come on. (cold solder joint?),(normally you can hear a relay close when you push the power button,but when this occurs,nothing This t.v is 4 yrs old used daily,problem occured virtually overnight
An expert who has achieved level 2 by getting 100 points
An expert that got 10 achievements.
An expert that got 5 achievements.
An expert that has over 500 points.
Re: cool temps cause my t.v. to not turn on
There are six capacitors on the DM board 1000uF 16 v that go bad, repace them with 680uF 16 v. 105C. the capacitors are clustered together. on the DM board the DM board is the board that is enclosed in the metal box. the repair is not an easy one so have a tech help you. this is a known problem.
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
<img src="mas_baz.jpg" /><br />There are three LED indicators. LAMP, TIMER, STANDBY/TEMP. Each Led or combination leds indicated problem.<br />
<li>LAMP blinking : The picture will automatically appear in about 15 seconds.</li>
<li>TIMER and STANDBY/TEMP blinking : A cooling fan inside the set is not operating normally.</li>
<li>LAMP and STANDBY/TEMP blinking : Lamp cover on the rear of the set is not properly shut.</li>
<li>STANDBY/TEMP blinking : Check if the ventilation hole on the rear of the set is blocked, because if the inner temperature is too high, the power will shut off.</li>
<li>All LED blinking : Lamp may be defective.<br /></li></ul>It takes about 30 seconds for the TV to warm up, so normal brightness may not appear immediately. The TV has a fan to keep the inside lamp from overheating. You'll occasionally hear it working.<br /><br /><br />
Thats a very common problem caused by bad DM capacitors. The caps discharge during the power loss and then cannot recharge when the power is restored whcih causes the steady blinking green led. You can get the DM repair kit for your model at www.tvrepairworld.com which does include the upgraded caps and the CD with instructions.
Sounds like you have a cooling issue. Do you notice if the fans inside the back of the tv are running? If not then it's overheating and turning itself off to prevent further damage.
Also The next time it happens, before you just turn it back on, press the INPUT and MENU buttons on the front panel together and hold them down for at least 6 seconds. This should cause the front LED to flash a 2 digit code. If it flashes once, then twice, then pauses and repeats, it means that the TV's computer didn't detect a problem.
There are 7 capacitors that need replacing in you digital module, it is located on the left hand side facing the back of the set. After opening the module there is a small power board inside, replace all 1000uf 16volt capaictors with 680uf 16volt capaictors. After replacing them there will be a small green led on the board that lights inside the digital unit. it will flash then go steady if all is ok with the set after replacing these capacitors. After this is done the power light up front will blink about 30 secs then go off. Turn on the television and happy viewing...
there are 3 leds on the front that blink the error code. which leds blink gives you the error. if its just the standby/temp red led blinking, it has overheated for some reason. there are a couple other fans you could clean but check your ventilation. many people put too close to the wall or close it up in a cabinet. it needs atleast 4" from the wall and someway to vent out hot air and get cool air in. a different model had the temp sensor cause this issue, it is the silver thing right atop the lamp. you will have to pull the whole back panel possibly, there are two wires that hook to it and two screws holding it to the engine (lamp housing). if you get lamp and temp leds blinking, reseat the lamp door. timer and temp leds is a fan error, all 3 leds is a lamp error (lamp, ballast, colorwheel, dmd)