It's great to be able to obtain a precious technical information for a real old equipment. The one I got helps me a lot in the area of wiring diagram to repair my antique. PDF gave me clear enough information to find out thr details. Thanks for giving me the oppotunity to be able to access to almost vanished informations.
Very useful, not the best scan, but definitely readable !
Text excerpt from page 32 (click to view)
CHAPTER 5. OTHERS
5-1.Replacing the CPU
1. Removing the CPU 1. Insert a flat-blade screwdriver into the notch as shown illustration and rotate it so that the protrusion comes to the lock release position. 2. Pull the CPU gently upward to lift it out of the CPU socket 2. Installing the CPU 1. Align the triangle reference mark of the mark the CPU with that of the CPU socket and insert all the pins of the CPU to the corresponding holes of the CPU socket. 2. Insert the flat head (-) screwdriver into the specified position and rotate th screwdriver to the LOCK position.