Recently the TV began to take an increasingly long amount of time to switch on. When turning it on from standby, the picture would flicker on for a few seconds (usually quite distorted), then turn off again. The TV would gradually turn on for longer at each attempt, until eventually it stayed on. However, now it has given up completely. When switched on at the front of the unit, all that happens is a chirping noise from inside, and no picture. When it is turned off at the front of the unit, the chirping noise gradually subsides.
Any ideas at all? Seems to me like it may be a power supply issue perhaps, but then again I could be completely off the mark. Thanks in advance.
An expert who has achieved level 2 by getting 100 points
An expert that got 5 achievements.
An expert who has written 50 answers of more than 400 characters.
An expert who has answered 200 questions.
Re: TV will not switch on
It sounds like you may be on the right track.
Also you could have a problem in your Horizontal Deflection circuit.
Since you say it flickered, you may have a solder joint that was arcing. Probably in the horizontal circuit. I found a capacitor which was arcing in this circuit. I was a small disk type.
NOW since it is chirping, the horizontal output transistor may have shorted placing too much of a load on your power supply. The noise you hear is the power suppply trying to start.
- 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.
Those 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/ http://homenol.blogspot.com/ http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.
Does the backlight come on? or even flash on and off when the TV is switched on? I presume the standby light is showing 'blue' then. Do you have any sound? Also, when the TV remote is pressed, does the standby light flicker?
I just got off the phone with what used to be Norcent....they are no longer in business, and do not know how or when they may be able to provide support to those of us that spent our hard-earned money on the garbage they sell. I have a LT 3222 and it lasted alittle over a year, not the picture is red and white. I called today to try to get some troubleshooting advise on the unit...only to be told that they went out of business last week. Sorry I did not have more info
The amount of standyby power consumtion is minimal. The only way to turn it off completly is to disconnect the power from the TV. This will however increase your start up time when you want to use the TV.