Re: Sony XBR-65x900F troubleshooting unresponsive TV

Update to this thread.

I ended up replacing the main board. After updating the software with a USB the TV was up and working again.

I'm assuming this was some sort of solder problem like previously mentioned.

Thanks everyone for the help.

Re: Sony XBR-65x900F troubleshooting unresponsive TV

I have not tried the hairdryer on the tcon board yet.

After leaving the TV unplugged for about 24 hours, the TV started up and displayed the Sony logo then a black screen. The standby light is on and displaying a white color.

The power button does not seem to turn off the TV at this point. The standby light does flash a brighter white when issuing commands via the remote.

Hello everyone,

This all started a few days ago when out of no where the TV appeared unresponsive. Pushing the power button did not do anything and there was no standby light active. However, holding the power and volume up button while plugging in the AC power did show a steady solid green light. Still no display and no further activity from there.

After some research I did some measuring of the common voltage points..

Main Board Connector
Pin 02 "BL_ON": 0.00V
Pin 03 "POWER_ON": 3.47V
Pin 05 "STBY 3.3V":...

Re: New Members - please post your introductions here

Hello everyone. Found this forum when researching common TV repairs. Looks like a great community and look forward to learning and contributing.