Hi, a friend has brought me the a sony kdl37s5600 motherboard, which has the problem of 5 pulses blinking red led. Thinking that the issue could be the power supply, I've tested the board with my supply, having the same response.
I've tested all the voltages(supply and dc-dc converters) and all are good at the beginning(because during the red led blinking the voltages disappear).
In my test conditions i dont have the tcon, so i'm testing the motherboard without it.
I've thought that the problem will be in my friend's tcon, because if this board has a test voltage which it's measured by the motherboard and it isn't present it will give an error, that is the same error that I've testing the motherboard without tcon.
I don't have found the schematic to check other poer on voltages, but i think they'll be present.
Thanks a lot,
Waiting your responses.
I've tested all the voltages(supply and dc-dc converters) and all are good at the beginning(because during the red led blinking the voltages disappear).
In my test conditions i dont have the tcon, so i'm testing the motherboard without it.
I've thought that the problem will be in my friend's tcon, because if this board has a test voltage which it's measured by the motherboard and it isn't present it will give an error, that is the same error that I've testing the motherboard without tcon.
I don't have found the schematic to check other poer on voltages, but i think they'll be present.
Thanks a lot,
Waiting your responses.
Comment