Sony XR-55X90J 5 blinks

[matwan]

Hello,

I have problem with SONY 55X90J. After several check status is as below;
1. Running power board as stand alone:

TCON_12V =~ 12.6V
EVDD V On Max 24V= 19V.

2.Running power board with TCON as stand alone:

Effect as below, attched.

3. When bottom LVDS cable is disconnected no blinks, but of course no TCON 12V and EVDD.
"I'm almost sure it's a defective panel, but maybe someone has encountered a similar issue on their screen.

Best regards.

[Diah]

if you disconnect only EVDD from T-CON side... did the error blinking gone?
if yes... keep it disconnected and do hard reset for the TV... give time for it until it stay on and can hearing the first install melody

[matwan]

Hello, no, with disconnect only EVDD from T-CON side error still blinking 5 times.
And sorry, correct model is: XR-55A90J but can't update title of the post.

[Diah]

Hello, no, with disconnect only EVDD from T-CON side error still blinking 5 times.
And sorry, correct model is: XR-55A90J but can't update title of the post.

if the rand screen don't have damage.. invest with replacing T-CPN driver boards

[matwan]

I have used 2nd TCON but from 65 inch model, first EMMC memory has been copied from original TCON but result is the same .

[lotas]

Sony often has a problem with the LVDS cables themselves (V-By-One FFC), try to find them and check.

[lotas]

Also, if you have an LG T-CON panel, there's a special adapter for testing the OLED panel (standalone mode, with color cycling) available on Aliexpress.

[matwan]

Hi Lotas, thank you. LVDS cables checked, looks OK.