FRU replacement notices

This section contains notices for removal and replacement. Read this section carefully before replacing any FRU.

LCD replacement notice

The TFT LCD for the computer contains many thin-film transistors (TFTs). A small number of missing, discolored, or lighted dots (on all the time) is characteristic of TFT LCD technology, but excessive pixel problems can cause viewing concerns. The LCD should be replaced if the number of missing, discolored, or lighted dots in any background is:

vSVGA : 5 or more bright dots, 5 or more dark dots, or a total of 9 or more bright and dark dots.

vXGA : 8 or more bright dots, 8 or more dark dots, or a total of 9 or more bright and dark dots.

Screw notices

This computer uses special nylon-coated screws with the following characteristics:

vThey maintain tight connections.

vThey do not easily come loose, even with shock or vibration.

vThey need additional force to tighten.

vThey should be used only once.

Do the following when you service this machine:

vKeep the screw kit (P/N 08K6560) in your tool bag.

vAlways use new screws if you are instructed.

vUse a torque screwdriver if you have one.

Loose screws can cause a reliability problem. The IBM ThinkPad computer addresses this problem with nylon-coated screws. Tighten screws as follows:

vPlastic to plastic

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Madge Networks 1200, 1300 manual FRU replacement notices, LCD replacement notice, Screw notices

1300, 1200 specifications

Madge Networks was a pioneering entity in the networking industry, notably recognized for its advanced solutions in the area of Token Ring technology during the late 20th century. The Madge Networks 1200 and 1300 series, launched in the mid-1990s, represented significant advancements in network performance and reliability.

The Madge Networks 1200 series was designed to cater to businesses looking for a robust networking infrastructure. This series supported Token Ring networks, which offered advantages such as reduced collision domains, enhanced fault tolerance, and improved data integrity. With a throughput of up to 16 Mbps, the 1200 series provided companies with the ability to efficiently handle data-intensive applications. Its architecture allowed for seamless integration with existing networks, ensuring a smooth transition for organizations upgrading their infrastructure.

On the other hand, the Madge Networks 1300 series took performance a step further. It offered higher throughput capabilities, advancing up to 100 Mbps. This was a remarkable leap for organizations striving for increased bandwidth and lower latency in their communications. The 1300 series featured more advanced management tools, providing network administrators with enhanced visibility and control over network performance. These tools facilitated real-time monitoring and troubleshooting, which were vital for maintaining optimal network health.

Both series utilized proprietary technologies such as the Madge Token Ring ASIC, which improved reliability and performance under high-load conditions. They also featured support for multiple network topologies and configurations, making them highly versatile for different business environments. The hardware was designed for easy scalability, allowing enterprises to expand their networking capabilities without significant overhauls.

Security features were also integrated into both the 1200 and 1300 series. With built-in functionalities for network access control and error detection, these devices ensured a secure networking environment. Each device was engineered to support redundancy protocols, minimizing chances of service disruptions, crucial for mission-critical applications.

In summary, the Madge Networks 1200 and 1300 series exemplified the networking innovations of their era, combining performance with reliability and scalability. They catered to various business needs, providing a flexible and secure networking solution that paved the way for future advancements in enterprise networking. Their legacy continues to influence modern networking technologies.