What should a technician do before servicing the system board in Lenovo products?

Before servicing the system board in Lenovo products, it is essential for a technician to download and review the Hardware Maintenance Manual (HMM). The HMM provides critical information about the specific model's components, system board layout, and detailed instructions for safely disassembling and reassembling the device. This manual often contains troubleshooting tips, warnings about potential hazards such as electrostatic discharge, and important technical specifications that ensure the technician follows the manufacturer’s guidelines.

Accessing the HMM beforehand helps the technician understand the context of the service procedure, including any special tools required or diagnostic steps that should be performed before service begins. It lays out a clear protocol for handling components, which is crucial when working on sensitive parts like the system board. This preparation is vital for efficient, safe, and effective servicing, minimizing the risk of damage to the components and ensuring that repairs are conducted correctly.