Instructions
Connect the PSP end of your PSP-to-Serial cable to the data port on your PSP. This cable will come with your PSP-to-HDMI converter.
Connect the serial end of your PSP-to-Serial converter to the serial port on your PSP-to-HDMI converter.
Connect one end of your HDMI cable to the HDMI port on your PSP-to-HDMI converter. Your PSP is now connected to a HDMI cable.