SONY PCGGRT55F
Service Manual

5-2. Replacing the CPU
1. Removing the CPU
1 Insert a flat-blade screwdriver into the notch as shown in the illustration 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. and

2. Installing the CPU
1 Align the triangle reference mark of 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 While pressing the two positions marked by a, insert the flat head (-) screwdriver into the specified position and rotate the screwdriver to the LOCK position.

1

2

1 CPU Lock position 2

2 CPU Lock release position Reference marks 1

Lock release position

CPU socket

Lock position

CPU socket

NOTE: Rotate a flat-blade screwdriver to the lock position securely. If not, the operation of the CPU may become unstable.

Confidential
PCG-GRT55F/GRT5xF/GRT77V/GRT99V/GRT9xV (J) PCG-GRT360ZG/GRT380ZG/GRT390Z/GRT390ZP (AM) PCG-GRT915M/GRT916V/GRT916Z/GRT995MP/GRT996VP/GRT996ZP (EU) PCG-GRT50ZCP (AO)

5-2 (END)