Hey guys,
I won a 47" Baird LCD...it's stuck on Standby(steady red LED). I have replaced all the crapxon caps in the power supply (Megmeet 199TL) and have all rails up, 5V, 5VMST, 12V, 24V. I've also checked all the sub supplies, 1.2V, 2.5V and 3.3V on the main/ signal board and all appears normal. The main board is not switching the supply on to the LVDS board, but I guess it only does that when running. I then checked for data/ clock on the firmware rom and it appears to be happily reading it. I have also quickly tested the inverters and both are working fine, as are the backlight lamps. I gave up in the end, figuring it had to be a firmware issue of some sort, but I managed to snag another main board used in the 42OR set, and a copy of the firmware for a 46" Vizio, which happens to use the same board, from my Russian pals, but still no joy.
I can program the firmware into the board if anyone has a copy to try with, just in case mine is actually corrupt. I have also decided to replace the power supply board, so I'm just waiting on that coming in, but I am doubtful that it will cure the standby issue.
Anyone got any other ideas what might be causing the standby issue?
I forgot to add that the main board is a Cultraview CV109H
I won a 47" Baird LCD...it's stuck on Standby(steady red LED). I have replaced all the crapxon caps in the power supply (Megmeet 199TL) and have all rails up, 5V, 5VMST, 12V, 24V. I've also checked all the sub supplies, 1.2V, 2.5V and 3.3V on the main/ signal board and all appears normal. The main board is not switching the supply on to the LVDS board, but I guess it only does that when running. I then checked for data/ clock on the firmware rom and it appears to be happily reading it. I have also quickly tested the inverters and both are working fine, as are the backlight lamps. I gave up in the end, figuring it had to be a firmware issue of some sort, but I managed to snag another main board used in the 42OR set, and a copy of the firmware for a 46" Vizio, which happens to use the same board, from my Russian pals, but still no joy.
I can program the firmware into the board if anyone has a copy to try with, just in case mine is actually corrupt. I have also decided to replace the power supply board, so I'm just waiting on that coming in, but I am doubtful that it will cure the standby issue.
Anyone got any other ideas what might be causing the standby issue?
I forgot to add that the main board is a Cultraview CV109H
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