Hi everyone, I was given a Sony 65' from a friend knowing that it has issues. I have done searches and read lots of info saying that it could be either the power board or the display board (not sure if that is the correct term for it). I have limited knowledge of electronics but I can work a multimeter. Can anyone offer some assistance to try and get this working again. I will post some pictures soon. Thanks
-
-
Re: Sony Bravia KDL-65W850C
Two bad things:
1) starting tv repairs with a big, heavy, expensive TV..
2) Starting a thread without describing the problem.. -
Re: Sony Bravia KDL-65W850C
so whats it doing totally dead, no flash at startup, no indicator light on the front or anything, when you try to power it up? can try with remote but also try with power button on tv if available.Comment
-
Re: Sony Bravia KDL-65W850C
Sorry, I should have at least described the problem. When the tv has been left off for a while, it turns on fine with the remote and via the switch. It boots up with the Android logo and then goes to the main menu. For a short period 3 maybe 4 mins you can navigate the menus perfectly and there does not appear to be any screen issues. Then it turns off and reboots and will continuosly reboot. almost as if there is a dry joint and it's getting warm and something is disconnecting.Comment
-
Re: Sony Bravia KDL-65W850C
I was able to preform a full factory reset on the tvComment
-
Re: Sony Bravia KDL-65W850C
and then? I cannot exclude software problems.. have you entered recovery mode?Last edited by Davi.p; 10-25-2022, 05:38 AM.Comment
-
Re: Sony Bravia KDL-65W850C
did the reset fix it? you may be on the right path, go ahead and look all the solder joints over very closely, resolder any that seem suspect, careful not to bridge any joints, examples of bad joints there: https://www.google.com/search?q=bad+...ih=607&dpr=1.5Last edited by nomoresonys; 10-25-2022, 07:15 AM.Comment
-
Re: Sony Bravia KDL-65W850C
The factory reset did work, but didn't fix the issue. I will post some photos of the boardsComment
-
Re: Sony Bravia KDL-65W850C
you have BGA issue at the main Soc on MB. search this forum we do have same but more worse... backing MB or reball the Soc.Comment
-
Re: Sony Bravia KDL-65W850C
could be but at this point, I cant even rule out weak/bad cap/s, not enough testing done yet.Comment
-
Re: Sony Bravia KDL-65W850C
after self rebooting how much lasts until a new reboot? If it completes the boot and reboots at the same point it's bad software probably..Comment
-
Re: Sony Bravia KDL-65W850C
This is an EMMC problem, sometimes a factory reset will help for a very short while but it's best to change the EMMC.Comment
-
Re: Sony Bravia KDL-65W850C
well which is it, "bga issue" or "emmc problem" ?
Comment
-
Re: Sony Bravia KDL-65W850C
^^^^then it looks like we're going to Rome, well it's better than hell I guess...
Comment
-
I have a Sony Bravia KDL-40V2500 that will not power on. The indicator flashes red 3 times.
I do not hear any sound and I cannot see any backlight.
I have tried disconnecting every cable on each board one at a time to see if anything changes.
The only change is when I disconnect AC-DET cable on the Power Supply board or on the other end if I unplug the CN7009 connection on the B-Board and try to power on the TV the indicator will stay on solid green until I power off.
My friend ordered another used power supply board but it is also doing the red indicator flash 3 times... -
Hello,
i have this sony bravia kdl-43w755c which boot loops. After sony logo, it shows the android animation loading then it restarts…
from what i read online it looks to be an emmc issue…
i’m not familiar with this kind of tv repairs… i’m repairing laptops and gpu’s…
i took out the board and say an samsung 16gb emmc
i don’t have an exact replacement, but i have a few 32 and 64gb emms’s from laptops…
i could try to put one instead of the 16gb one, but will it work?
where do i get the software from?
any help will be much appreciated!...03-06-2024, 12:26 PM -
Sony Bravia 22" LED Full HD TV KLV-22P402B Schematic...10-16-2024, 05:15 AM
-
Greetings everyone.
I also have Sony Bravia, model:
Sony Bravia KD43XF7596BAEP - Android.
What happend is that image dissapeared while we were watching tv.
Diagnostics:
1. TV turns on, no errors
2. Backlight turs on, no errors
3. Power indicator turns on, white color, no errors
4. Menu works on android, you can hear sound while switching channels
5. Volume up and down works via TV remote and via buttons
6. Tunner works, HEVC / MPEG-4 decoder works
7. I get audio from channels
8. No picture is present,... -
Previous owner said TV just went blank one day.
They attempted to open the back panel and yanked the power connector off the power supply in the meantime.
Easily fixed that and got the TV to turn on. Backlights come one with everything connected. Good Sign.
The mainboard shows signs of life (red light on digital audio out is on) but that's about it. Good Sign.
There is not blinking LED and the most importantly there is LED response and sound when I press the MENU button on remote control. GREAT Sign.
I just downloaded the Sony KD-75X7800F Service Manual and...
Comment