Re: Repairing a Sony KD-49X8309 tv (android boot loop)

Have you tried a factory reset on the TV?

Hold the volume down and power buttons down on the tv while ac power is plugged in, then unplug ac power (still holding down buttons), plug back in AC power, and hold buttons for 10-30 seconds until you see the front light on the TV turn green, then release power and volume down buttons.. And it will go through its reset process and turn back on.

Worth a shot...

Re: Sony Bravia XBR-65x900e Test pattern

After slicing the end off with the razor, there were some burrs on the end of the ribbon connector going into the main board, so I dulled those up a bit so nothing got stuck or damaged the female pat of the main board.

Re: Sony Bravia XBR-65x900e Test pattern

Dudes! I feel so smart. One of the LVDS cables had a tiny bit of wear it looked like to me. I took a razor and sliced a few mm off, cleaned the ends, and voila It works. Wooooo buddy.

Re: Sony Bravia XBR-65x900e Test pattern

I ordered some new LVDS cables by next day air, fingers crossed they work.

Re: Sony Bravia XBR-65x900e Test pattern

Nomoresonys:
I checked and the only applicable update is the 6.5xxx firmware update, which I have already applied. I did the factory reset successfully, and in doing so, I noticed some strange behavior, that lends some credence to William1967s post:

After factory reset, I was pressing the up and down buttons on the remote.
The test pattern isn't totally static. There are all the colors, but there seems to be dark overlays. When I press the up and down buttons on the remote, I can hear the 'bing' sound of changing...

Re: Sony Bravia XBR-65x900e Test pattern



The status light was flashing while the update was running and changed when it was done, then rebooted.



That is a great thought... I've tried to factory reset it, but maybe it does take the service menu to get it out of test mode. Would simply pressing the key combination get me in the service menu to where I can take it out of test mode? I'm going to try this suggestion tomorrow and post some pics if that doesn't fix it.

Thanks all...

Hello all,
I got this beauty of a 65" Android Smart TV from a roommate whose boss through it out because it didn't work. I've fixed a few TVs before, but was being stupid on this one:

Original issue:
TV powered down after a minute or so, but picture was fine.
Tried replacing main board, which didn't work. I should have just replaced the AC Power board.

Months later, I replaced the power board, so I can see the screen. I lost / threw out my original main board, and there is now what I believe to be a defective main board in the TV. My symptoms...

Re: New Members - please post your introductions here

Hello all, my name is Will. Longtime reader from fixing a few TVs, first time poster.