Hello. I have a ps4 slim here that has and issue with the image coming uo on the screen for a split second, then black for a few seconds, ten back on for a split second. The hdmi plug is good, and I have replaced the encoder ic twice.
There is no obvious damage to board, it had never been opened, and the ps4 was never even moved by the client, so he wasn´t disconnecting and connecting different hdmi cables.
Using my oscilloscope I do not see any loss of voltages to the encoder ic, nor the 5v to hdmi hot plug detect. The only thing I could see is that the ic sends(or recieves) some digital signal on two lines going to hdmi (im guessing a handshake with tv) then it reboots itself and I see another "handshake".
This all happens like clock work, it takes the exact same time every time to reboot and show something on screen. And I have not found any voltages dropping near the ic.
I am guessing maybe an "enable pin" voltage drop, but I cant find any datasheet for these encoders. So I don´t know where to be looking. I have also found clock signal from southbridge, but that seems good.
There is no obvious damage to board, it had never been opened, and the ps4 was never even moved by the client, so he wasn´t disconnecting and connecting different hdmi cables.
Using my oscilloscope I do not see any loss of voltages to the encoder ic, nor the 5v to hdmi hot plug detect. The only thing I could see is that the ic sends(or recieves) some digital signal on two lines going to hdmi (im guessing a handshake with tv) then it reboots itself and I see another "handshake".
This all happens like clock work, it takes the exact same time every time to reboot and show something on screen. And I have not found any voltages dropping near the ic.
I am guessing maybe an "enable pin" voltage drop, but I cant find any datasheet for these encoders. So I don´t know where to be looking. I have also found clock signal from southbridge, but that seems good.
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