Re: Has anyone seen a Sony 55X900C led strip do this?



Thank you good idea lowering the backlight level...

The LED light strip along the bottom is randomly flashing off about 10-15 leds in a row. Maybe a bad led driver board? Or maybe some strange HDMI switching issue? Seems to get worse once the TV is on for a few minutes.

Video link here:
[url]https://youtu.be/HiTvCx_mkkY[/url]https://The LED light strip along th...vCx_mkkY[/url]

I've got a Sony XBR65X900C that is shutting down after about 30 seconds with a 7 error blink code. I do see there is a temp error in the service menu before it shuts down. I have replaced IC1400 which the manual says is the temp sensor with another sensor off a parts board. After that didn't work I removed the HDMI switch IC suspecting it to be bad. Still same issue with it removed. What else is on that I2C line that could be causing this? CPU? Nothing feels hot. Still waiting on my thermal camera to arrive that *might* be of use here.

Any ideas on further getting this board to...

Re: Sony xbr-65x900c main board issues?

Are you talking about this little nand on here? If so I use to reprogram these to unlock ipads. I have a friend who still has the programmer. Where would I find a good image to write to it? I suspect it would have to be pulled from a working board?...

Hey guys great forum glad to have found it. I bought a Sony XBR 65X900C cheaply because it didn't work. No signs of life at all not even a light/led. All I hear is a brief high voltage sound when I throw the power to it.

Didn't see any obvious signs of damage so right away started checking voltages. This is what I see:
Power Board Connector that goes to Main board
CN6401
Pin 01 NC
Pin 02 NC
Pin 03 "BL_ON": 0V
Pin 04 "N/C"
Pin 05 "STBY 3.3V": 3.5V
Pin 06 "GND": N/C
Pin 07 "AC_OFF"...

Re: New Members - please post your introductions here

Hello, I'm John from Texsa