Sony XR-55A80J OLED TV 5 blinks - Troubleshooting steps

[Davi.p]

so you returned both main boardL/tcon? Are you sure it was the rigut one and not the original one?

[jason123]

I am not sure. The previous owner bought these cards and he said they didn't work. I don't really know what he did. But I can't imagine he returned the wrong card and still he got his money back.

[Davi.p]

i suggest a service manual search to try to get information on correct part numbers of the boards..

[jason123]

Unfortunately, the service manual is no help. https://research.encompass.com/SON/rr/XR55A80J.pdf
Looking at SJ, it lists the correct main board (A5026207A) matching mine, but for TCON, they list 6380E while the one in my set is 6380F - But I'm not sure if this is a later model or if 6380E is the only compatible (all other numbers on the TCON - LE550PQL(HP)(A4), 6870C-0848C ... match)

[Davi.p]

I took a look at shop jimmy, for the main board sticker there are more letters than what you write on an example picture, and also so in the SJ item page title..

[Diah]

I.

i wrote before use external source to feed the ARC HDMI port with Movie to check you can hear sound of it.

[Davi.p]

Can you post your main board sticker?

[jason123]

Here you go

[jason123]

i wrote before use external source to feed the ARC HDMI port with Movie to check you can hear sound of it.

I must have missed that request - I can hear the melody of the TV as I press various buttons on the remote. Applying a source and being able to select that source without the display is difficult. I tried, and no luck.
Just so I understand, what does this tell us if we know the Main board is responsive to remote (volume, home screen,..)?

[Diah]

I must have missed that request - I can hear the melody of the TV as I press various buttons on the remote. Applying a source and being able to select that source without the display is difficult. I tried, and no luck.
Just so I understand, what does this tell us if we know the Main board is responsive to remote (volume, home screen,..)?

i wrote at post #11 yours MB OK
ARC HDMI will be automatic detected from TV.. look after ARC over all HDMI Ports

[Davi.p]

Watching SHOPJIMMY site does not clear idea , they appear to report bad model numbers.. this is a mess.. the only simplest and most safe way to get correct boards is to get the set of 2 boards together from a cracked panel set or by SJ

[jason123]

Watching SHOPJIMMY site does not clear idea , they appear to report bad model numbers.. this is a mess.. the only simplest and most safe way to get correct boards is to get the set of 2 boards together from a cracked panel set or by SJ

Ideally with unlimited funds, that would be great. The set at SJ is $196... not willing to spend that much to try

[jason123]

i wrote at post #11 yours MB OK
ARC HDMI will be automatic detected from TV.. look after ARC over all HDMI Ports

Plugged a ROKU into HDMI3 (ARC) and not being auto detected. I tried with my other Sony xbr-65x900f, it does detect but doesn't switch automatically to that input.

[Davi.p]

1) there is no other solution for me except get only a tcon card but its less safe, the unused cards can be resell 2) there is not only source of SJ, in the 2nd hand market a cracked panel can cost 100 euro (100$~?) or the less.. and a brand new oled tv can cost 900-1000 Euro ($?)

[Diah]

Plugged a ROKU into HDMI3 (ARC) and not being auto detected. I tried with my other Sony xbr-65x900f, it does detect but doesn't switch automatically to that input.

yes, also because you did reset.. so move the DIY on T-CON and disconnect the MB and LVDS both and do again PSU-T-CON-Panel standalone, let see what the screen will show this time after reset