Sony LED 65X9005A shuts down after few seconds - looking for help

[tec3000]

ok, here it is:
and where is the B board located? That's just a different name I assume?

[Diah]

ok, here it is:
and where is the B board located? That's just a different name I assume?

screw the boards to tv chassis , then try one flat ribbon cable each time )to disconnect and turn on ( you have 4 ) ... see the Tv register error 4 blink at once or start on and tell which cable and the tv reaction.

[tec3000]

screw the boards to tv chassis

hi, what exactly do you mean here? Should I screw one particular wire to the TV chassis? If so, which wire?

[Diah]

hi, what exactly do you mean here? Should I screw one particular wire to the TV chassis? If so, which wire?

LOL
you removed the heat sink of the boards... now the boards are free no screw tight it to tv chassis... need to put 2 screw at least in place

the flat cable one by one disconnect them and turn on,,, see if the tv give error or stay on

[tec3000]

ah yes of course. So it doesn't fall. I just thought you maybe want me to ground something...but understood.

I did that and also tested one by one. First the bottom left, then right. Then I did the other two on the top right. One by one. Unfortunately the TV always turns off after approx. 15 seconds - if I don't switch to the i-Manual.

[Diah]

do it again by disconnect 2 together , start with 2 on the top

[tec3000]

do it again by disconnect 2 together , start with 2 on the top

Alright. Interesting observations (especially Point 5):

1) I tried all sorts of combinations. All with the same outcome. I tried taking out the two at the top, then at the bottom. I took out an up/down pair. Then the other pair. I even took out three at once. TV shuts off after 15 seconds and I get the 4 blinking error code.

2) Interesting to note is: taking out the flat cable on the top right results in a dimmer picture right from the off. It's barely visible when I turn on the TV. With the other 3 it's normal light output in the beginning.

3) I turned down the backlights to minimum. TV still shuts off.

4) I turned on maximum power saving settings - which results in disabling the backlights - TV STILL SHUTS OFF.

5) I enabled an eco mode "Picture off" (which is useful when listening to music I guess). TV DOES NOT TURN OFF. Like with the i-Manual TV stays on forever.

I'm curious if you guys know what this means. Especially Point 5!

Appreciated!

[Diah]

Point 5 indicated the LED driver boards when it shutting down. tv remain on, in other words boards over load defect...
BUT for me i will never invest to replace this boards unless i inspect the LED BL visually to see the real status of them.. just because if there are shorted LED they will make the same load on the boards..
the reset all to you

[tec3000]

So you think I can replace the LED driver board and it will get rid of the problem? Or not? I don't have a real backlight problem so far. Light output is satisfactory - even with the darker spots that can be seen on the i-Manual. With real world content I never noticed any issues with the backlights. This is an 11 year old tv. It doesn't have to be perfect.

[tec3000]

Code error 4

Where do I find BACKLIGHT_MON? I can't locate it anywhere.

[Donny2derby]

If I were you I would break the tv down to the back panel, test the LED's and the you know for certain where the issue is. You have been told by very knowledgable people what the issue seems to be. Don’t ignore their advice.

[Diah]

Donny2derby , he knew very well he have defect LED... but he said satisfied with black spots on screen...

So you think I can replace the LED driver board and it will get rid of the problem? Or not? I don't have a real backlight problem so far. Light output is satisfactory - even with the darker spots that can be seen on the i-Manual. With real world content I never noticed any issues with the backlights. This is an 11 year old tv. It doesn't have to be perfect.

replacing boards will bring nothings.... if i teach you now how to by pass the error... your TV will toasted the LED driver boards and LED power boards (the one on the left side of the power boards ).

post clear photo of the LED power boards... and ready under yours hand fire extinguishable LOL

[tec3000]

If I were you I would break the tv down to the back panel, test the LED's and the you know for certain where the issue is. You have been told by very knowledgable people what the issue seems to be. Don’t ignore their advice.

I wouldn't know how.

[tec3000]

Donny2derby , he knew very well he have defect LED... but he said satisfied with black spots on screen...



replacing boards will bring nothings.... if i teach you now how to by pass the error... your TV will toasted the LED driver boards and LED power boards (the one on the left side of the power boards ).

post clear photo of the LED power boards... and ready under yours hand fire extinguishable LOL

Here the photo. Hope it's the correct one!!

Thank you!

[lotas]

As a rule, over time, LEDs degrade (especially after 11 years) and the LEDs begin to consume more current than necessary, the controller monitors this and the protection in LD is triggered and the LD controller sends an error to the motherboard and the motherboard blocks LD and turns off the TV (snorting code error "4").

[Diah]

write over here the pins chart of socket CN6601 name and Pin No. we cant see it clear

[tec3000]

write over here the pins chart of socket CN6601 name and Pin No. we cant see it clear

I took a close-up. Made sure everything is readable. Have a look.

[Diah]

I took a close-up. Made sure everything is readable. Have a look.

pin 11 LD_ERR pull it out from the socket ..put yours DM probe on it with reference to tv chassis.... turn on and read the value at start the tv and later

[tec3000]

As a rule, over time, LEDs degrade (especially after 11 years) and the LEDs begin to consume more current than necessary, the controller monitors this and the protection in LD is triggered and the LD controller sends an error to the motherboard and the motherboard blocks LD and turns off the TV (snorting code error "4").

Speaking of which... I wanted to describe how this whole mess began. It might be a coincidence and the TV simply aged. However, the timing was a bit odd. I am doing skinning stuff for Kodi. I was working on a window where I had no background - meaning 90-95% of the window was pitch black - for hours and hours. Even days. Finally the TV got darker and automatically turned off - while I was actively using the TV. That was odd. But I was able to turn the TV back on and continue to work. Then I added a coloured background and for a few days I had no issues whatsoever. But after a few days the TV started to turn off again and since then I have this issue. So did I cause this with the black background or is all a coincidence?

[tec3000]

pin 11 LD_ERR pull it out from the socket ..put yours DM probe on it with reference to tv chassis.... turn on and read the value at start the tv and later

I don't wanna mess this up. Have a look at the pic. I pulled out the LD_ERR wire. Do I need to ground it? Where do I go in with the red probe of my MM? Wire, connector, socket? Where exactly? Thank you.