Does not always come on. When it does, has silver lines running up and down and sound usually comes on, then goes right back off. Makes crackling and popping sounds with a loud hum. Also, loud static sounds. Also, the logo that appears when the tv is turned on is not readable.
The power supply in this model was terrible about having bad capacitors. The bad capacitors in this unit will have the top of teh can bowed out and browned. A qualified technician should be able to repair or replace the power supply.
- 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.
sounds like you have a back light problem. To verify this, turn on the set, dim the lights in the room, and shine a bright flash light on the screen. If you see the faint picture on the screen, you have a back light problem. You could either have a shorted inverter that is pulling down the 24vdc line, a blown CCFL back lamp, a high voltage short (arcing) from one of the inverter outputs, or a faulty 24vdc power supply
Your power supply board is dead, u know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
Hoping this will help in solving the problem...
You need to check the output voltages of the power supply to see which one goes off. It may be due to short circuits some where.If otherwise, power supply board is dead, do you know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.
power supply problem of course...set is not dead so line fuse would be good as you said...regulating power supplies are very stable but do contain >>>CAPs<<< caps can leak ,swell do to heat ,etc.
check for visible signs of damage to caps. on circuit board...check regulating transistor( on heat sink)
the >>> on off on off routine<<< makes me think check caps!!!!!
Sounds like a overheating issue. Try facing a large fan blowing across the back of the unit and see if this changes anything. If it does, it might help to blow the back out with compressed air as dust might be helping it overheat.
IT GAVE OUT A LOUD BANG AND NOW I HAVE NO PICTURE OR... Mosfet Transistor blow out. Transistor K3316 or replace the Power unit supply. This problem was caused by a low power voltage.SONY SONY KE-42TS2U
The TV usually hums when the backlight setting is too low. So turning
it up should get rid of the problem. To do this please follow these
1. Turn the TV on.
2. Press the Menu button on the remote, located right below the channel changing button.
3. Press the down direction button, located at the middle of the remote. Press that button until the backlight is highlighted.
4. Press the right direction button until the backlight is at 100.
5. Press the OK button and then the Exit button until you get back to your picture.