So I have a 80" Sharp that I got from a client. The HDMI ports stopped working, they called us, we replaced it with a 75" Samsung. I took the Sharp home. 
I got the Sharp home ID'd the board (DKEYMF953FM06, Version H), ordered a main board off eBay and put it in and I got a lamp failure code. Hmmm, closer inspection I see the board is a Version A. Seller used a stock photo of board and accepted return. Ordered another board, confirmed Version H. Got board, put it in, same lamp error code. Took it out, sent it back, seller accepted, put the original board back in and for whatever reason I saw the spinning thing show up from my Apple TV, I put it back together and hung it up on the wall, no questions asked.
A couple months go by and one day I'm working from home playing some music and my photo screen saver from Apple TV is on until I look up all of a sudden no picture but sound is still coming from the receiver. Hmmm ok looks like HDMI on fritz again. I unplugged it and was busy for a while so it just sat for a couple weeks, maybe a month. I plugged it back in one day for the hell of it, APPLE TV SHOWS UP! YAY!. I put on In The Army Now and within 20 minutes black again. I picked up the remote (the tv remote) and hit volume down and the volume on the receiver went down! That means the CEC over HDMI is still working. So the ports are not blown. It MAY be software related, possibly even be HDCP related?
Since then someone mentioned on another forum that I should blind flash the firmware on the board I get from eBay to factory and go in and reset the service menu to 80" parameters. I have been in the service menu and that's some serious stuff. I have the service manual and it describes these steps but before I buy one; I want to try to blind flash the board I have. Since I believe this problem very well MAY (I know its a big "MAY") be software.
In the service menu (Page 5-1) I see this blind flash procedure explained but Im having trouble accessing the files for it. I believe they are acquired from the Sharp service website to which I don't have access. The files I need are 1) OKLA_LE857_xxx.USB & 2) OKLAMxxx.SMB. I can only get "OKLA_LE857_153.UVP" from the Sharp TV website but it has a different file extension and will not boot from USB upon holding Power key + AC power connection.
Could anyone help me access these files? If I end up replacing the board, it looks like I will need these files regardless so I'm dead in the water until I can find someone who has or has access to them that is willing to share. Thanks for your time! This is too nice of a set to toss in the trash!
I got the Sharp home ID'd the board (DKEYMF953FM06, Version H), ordered a main board off eBay and put it in and I got a lamp failure code. Hmmm, closer inspection I see the board is a Version A. Seller used a stock photo of board and accepted return. Ordered another board, confirmed Version H. Got board, put it in, same lamp error code. Took it out, sent it back, seller accepted, put the original board back in and for whatever reason I saw the spinning thing show up from my Apple TV, I put it back together and hung it up on the wall, no questions asked.
A couple months go by and one day I'm working from home playing some music and my photo screen saver from Apple TV is on until I look up all of a sudden no picture but sound is still coming from the receiver. Hmmm ok looks like HDMI on fritz again. I unplugged it and was busy for a while so it just sat for a couple weeks, maybe a month. I plugged it back in one day for the hell of it, APPLE TV SHOWS UP! YAY!. I put on In The Army Now and within 20 minutes black again. I picked up the remote (the tv remote) and hit volume down and the volume on the receiver went down! That means the CEC over HDMI is still working. So the ports are not blown. It MAY be software related, possibly even be HDCP related?
Since then someone mentioned on another forum that I should blind flash the firmware on the board I get from eBay to factory and go in and reset the service menu to 80" parameters. I have been in the service menu and that's some serious stuff. I have the service manual and it describes these steps but before I buy one; I want to try to blind flash the board I have. Since I believe this problem very well MAY (I know its a big "MAY") be software.
In the service menu (Page 5-1) I see this blind flash procedure explained but Im having trouble accessing the files for it. I believe they are acquired from the Sharp service website to which I don't have access. The files I need are 1) OKLA_LE857_xxx.USB & 2) OKLAMxxx.SMB. I can only get "OKLA_LE857_153.UVP" from the Sharp TV website but it has a different file extension and will not boot from USB upon holding Power key + AC power connection.
Could anyone help me access these files? If I end up replacing the board, it looks like I will need these files regardless so I'm dead in the water until I can find someone who has or has access to them that is willing to share. Thanks for your time! This is too nice of a set to toss in the trash!
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