@imhififan
Since it's not easy to pull out the transformer wires (although I know I must pull out the transformer wires when I actually do conversion), a friend of mine who is familiar with PCB of electronics arranged an image which explains the connector layout for me.
Here's a link of the image:
A-48S_wires (003).jpg
Also, here are links for markings/part number of the component on the 716-1362-00:
716-1362-00 (1).JPG
716-1362-00 (2).JPG
According to him, the component on the 716-1362-00 is perhaps the bridge diode for rectification.
Hopefully, these photos will help you figure out.
Thank you.