No hdmi on Sony Bravia kdl40s4100

[blacksmithjim]

I know this is an older tv, but other than the hdmi ports not working, it still has a beautiful picture ( albeit through component.) After a thunderstorm with incredible lightning strikes, my hdmi ports stopped working. My digital cable dvr, which was the only device with power connected to the tv through hdmi during the storm, fried. As well as my cable modem. The xbox and blueray were not powered on, and survived, but cannot get a picture through hdmi. I have read through some forums, about "no picture and sound", but I am positive that my problem resulted from the storm. Now onto my questions....... Which board in the TV is the likely culprit? I don't see any burnt or loose connections. I was hoping it could be narrowed down to one board just by my explanation. Are there places on the inverter board or power board that deal with hdmi soley?

Thanks!

[tom66]

Re: No hdmi on Sony Bravia kdl40s4100

In this case, it'd be the main board; this is the board with the HDMI and video connectors on it.

[blacksmithjim]

Re: No hdmi on Sony Bravia kdl40s4100

Can you just swap out main boards, or are they specific to certain serial numbers, or have some encryption?

Thanks

[johnboy1313]

Re: No hdmi on Sony Bravia kdl40s4100

They are specific to model numbers, usually. You will need to open the TV up, identify the main board, and get the part number off the label. Take pics and post back if you need help identifying anything.

[randtek]

Re: No hdmi on Sony Bravia kdl40s4100

You cannot just swap boards in a Sony without consulting a cross reference. Sony will use different combinations of boards and panels in the SAME model of TV. The boards and panels are incompatible and not interchangeable between versions. The only way to determine the correct version is by consulting a cross reference, using the serial number of the unit. Newer models will use the same main board across several models and sizes, and when you install the board, you must also install the correct firmware for the TV it is going into, which then makes it the correct board for that model. If you then put that board into another unit of a different size or model, it will not work. So you can actually install a board with the correct part number and not have it work, if its a pull form another TV.

In short, Sonys are a nightmare for the do-it-yourselfer. I have seen a lot of posts on here from people trying to replace boards in Sony TVs and having difficulties because of this.

[johnboy1313]

Re: No hdmi on Sony Bravia kdl40s4100

You cannot just swap boards in a Sony without consulting a cross reference. Sony will use different combinations of boards and panels in the SAME model of TV. The boards and panels are incompatible and not interchangeable between versions. The only way to determine the correct version is by consulting a cross reference, using the serial number of the unit. Newer models will use the same main board across several models and sizes, and when you install the board, you must also install the correct firmware for the TV it is going into, which then makes it the correct board for that model. If you then put that board into another unit of a different size or model, it will not work. So you can actually install a board with the correct part number and not have it work, if its a pull form another TV.

In short, Sonys are a nightmare for the do-it-yourselfer. I have seen a lot of posts on here from people trying to replace boards in Sony TVs and having difficulties because of this.

Yikes! Note to self: Stay away from Sony TVs