Faulty HDMI issue isn’t the only motherboard fault PS4 console experiences. We have been reballing APU ASICs and replacing various components on the board to get these consumer devices back into working order. One of the most common issues is HDMI transmitter MN86471A failure, which is caused by shorting certain output pins of HDMI port. This results in no video output even after APU BGA rework and HDMI port replacement. Faulty MN86471A can also produce problems such as low resolution, video only in system menu and video output of only certain resolution range, such as 480p. Package is very sensitive to Electrostatic Discharge (ESD) damage and if handled improperly will become faulty with various issues or non-operational at all.
Due to high demand of MN86471A Transmitter Controller our engineering department decided to develop a solution, which would allow us to test these controllers in native environment. This led to research to solderable LQFP64 socket.
This socket allows minimal bandwidth degradation and also allows to easily insert the component without soldering it in place. The socket was a great success for and allowed us to purchase cheapest possible components on the market and test them to raise issues with suppliers about non-functional units. This strategy allowed TFix to shave valuable operational time when replacing MN86471A integrated circuits and further improve Playstation 4 game console success rates.
Once the socket installed to your own stocked Playstation 4 motherboard all the stock of MN86471A can be re-evaluated and all non-working items removed leaving only fully functional components ready to be installed into customers units.