Important:

Use only approved tools and test equipment. Some hand tools have handles covered with a soft material that does not insulate you when working with live electrical currents.

Many customers have, near their equipment, rubber floor mats that contain small conductive fibers to decrease electrostatic discharges. Do not use this type of mat to protect yourself from electrical shock.

•Find the room emergency power-off (EPO) switch, disconnecting switch, or electrical outlet. If an electrical accident occurs, you can then operate the switch or unplug the power cord quickly.

•Do not work alone under hazardous conditions or near equipment that has hazardous voltages.

•Disconnect all power before:

–Performing a mechanical inspection

–Working near power supplies

–Removing or installing main units

•Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the customer to power-off the wall box that supplies power to the machine, and to lock the wall box in the off position.

•If you need to work on a machine that has exposed electrical circuits, observe the following precautions:

–Ensure that another person, familiar with the power-off controls, is near you. Attention: Another person must be there to switch off the power, if necessary.

–Use only one hand when working with powered-on electrical equipment; keep the other hand in your pocket or behind your back.

Attention: An electrical shock can occur only when there is a complete circuit. By observing the above rule, you may prevent a current from passing through your body.

–When using testers, set the controls correctly and use the approved probe leads and accessories for that tester.

–Stand on suitable rubber mats (obtained locally, if necessary) to insulate you from grounds such as metal floor strips and machine frames.

Observe the special safety precautions when you work with very high voltages; Instructions for these precautions are in the safety sections of maintenance information. Use extreme care when measuring high voltages.

•Regularly inspect and maintain your electrical hand tools for safe operational condition.

•Do not use worn or broken tools and testers.

•Never assume that power has been disconnected from a circuit. First, check that it has been powered off.

•Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, and missing safety grounds.

•Do not touch live electrical circuits with the reflective surface of a plastic dental mirror. The surface is conductive; such touching can cause personal injury and machine damage.

•Do not service the following parts with the power on when they are removed from their normal operating places in a machine:

–Power supply units

–Pumps

–Blowers and fans

–Motor generators

–Similar units to listed above

This practice ensures correct grounding of the units.

•If an electrical accident occurs:

–Use caution; do not become a victim yourself.

–Switch off power.

–Send another person to get medical aid.

2Hardware Maintenance Manual

Page 7 Page 9
Page 8
Image 8
Lenovo EDGE 13, E31, E30 manual Hardware Maintenance Manual
Page 7 Page 9

EDGE 13, E30, E31 specifications

The Lenovo E30, EDGE 13, and E31 are part of Lenovo's well-regarded ThinkPad and Edge series, designed to provide users with versatility, performance, and efficiency. Each model caters to different user needs while maintaining a high standard of build quality and functionality.

The Lenovo E30 is a compact and lightweight business laptop that combines portability with powerful performance. It typically features a 13.3-inch display, making it easy to carry without sacrificing usability. The E30 is equipped with Intel's Core i5 or i7 processors, offering a balance between power and battery efficiency. The laptop supports up to 8GB of RAM, ensuring smooth multitasking for business applications, and provides ample storage options with HDD or SSD configurations available. The integrated graphics chip allows for casual gaming and efficient media playback, while its robust security features, including a fingerprint reader and Trusted Platform Module (TPM), safeguard sensitive information.

Moving to the Lenovo EDGE 13, this model features an ergonomic design and a chiclet keyboard that enhances typing comfort during long working hours. Its 13-inch display boasts vibrant visuals, suitable for both professional presentations and media consumption. The EDGE 13 is also powered by Intel Core processors and can be configured with up to 8GB of RAM, enabling users to run demanding applications seamlessly. Its dedicated graphics option may appeal to users who require enhanced performance for graphic design or gaming. Furthermore, connectivity options are plentiful, including USB 3.0 ports and HDMI output, making it easy to connect peripherals and external displays.

The Lenovo E31 is the larger counterpart in the series, featuring a 14-inch or 15-inch display that is ideal for users who prefer a more extensive screen for their tasks. This model is designed for productivity and collaborative work, with its ample screen real estate facilitating multitasking. Like its predecessors, the E31 is equipped with the latest Intel processors, ensuring it meets the demands of various software applications. The robust build quality is complemented by a spill-resistant keyboard, making it suitable for environmental challenges often faced in business settings. Lenovo emphasizes battery longevity in the E31, which allows users to work longer without needing a recharge.

All three models—E30, EDGE 13, and E31—incorporate advanced technologies such as Lenovo's RapidCharge feature for quick battery refills and enhanced cooling systems that help maintain performance levels during intense tasks. Additionally, Lenovo’s software solutions enhance productivity with tools for managing tasks and securing data.

In summary, whether opting for the portability of the E30, the stylish EDGE 13, or the expanded functionality of the E31, Lenovo offers a solid choice in the business laptop market, tailored to various user needs while ensuring reliability, performance, and security.
Top Page Image Contents