Have TV Questions? Ask a TV Technician
Hello, Anytime you don't see a power light- the first thing you need to do is test the 5 volt pin on the power supply board to see if there is voltage in place. If there is- you have a bad Mainboard, and alternatively if there's not then you have a bad power supply board. You set your meter to DC volts, ground the black probe and test the 5V pin with the red probe. It is very unlikely you will ever see a burn mark on any of these boards.
If you're missing the 5 volt line, then you will purchase the power board at the link below and swap it to fix the issue:
Alternatively if you have the 5 volts present- with NO power light indicator, then your Mainboard is faulty and requires replacement. It can also be sourced from the following link:
If you need further assistance let me know. Please do not forget to click a POSITIVE RATING before you go- as it's how I am credited for my work. You can follow up at any time, at no additional cost.
That sounds good.
The 5 volts would be labeled on the power board where the connector is that provides this voltage. Can you see the legends with the voltages stamped near them?
Let's try this a different way- do you have 5 volts on ANY single pin on any of the connectors at all?
So long as there is 5.2 volts present- then we know you have standby, and the other component that is responsible for powering the power board up is the mainboard (the board with the AV jacks on it), So you would need to replace the mainboard to fix this problem.
Yes, the quality of the 3D when it's turned off is identical to a non 3D.
No, the site has a new format and the question I answered was sent to you by accident on their end. The Mainboard being replaced with a properly working Mainboard would not render the Source or Volume as being stuck- disconnect and reconnect your button board to the mainboard and if that does not work- then they sent you a faulty mainboard and you need to send it back and get another.