Sony PCV-J200 - Manual (Page 49)

Removing, Installing, and Replacing Components 37
8 Align the memory module over the appropriate socket; note the
location of pin 1 on the module and pin 1 on the socket.
9
Carefully but firmly insert the edge of the module into the socket.
✍
Gently push the power supply cables and ribbon cables aside as you slip your hands into
the system to reach the module socket.
1 1 1 1
Latches
Press down
here
Memory module (DIMM)
Indicates pin 1