Main Module Reassembly Procedure; Replacing The Rtc Battery; Replacing The Cpu - Acer 4553 Service Manual

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Main Module Reassembly Procedure

Replacing the RTC Battery

1. Snap the RTC battery into its socket as shown, plus side (+) up.

Replacing the CPU

IMPORTANT:The CPU has a Pin1 locator that must be positioned corresponding to the marker on the CPU
socket.
1. Place the CPU into the CPU socket as shown, taking note of the Pin1 locator.
2. Using a flat-bladed screw driver, rotate the CPU locking screw 180° clockwise to secure the CPU in place.
90
CPU
Pin1 Locator
Chapter 3

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