Message/Symptom

FRU/Action

 

 

"Insert a Diskette" icon appears with a known-good

1. System Board

diagnostics diskette in the first 3.5-inch diskette drive.

2.

Diskette Drive Cable

 

 

3.

Network Adapter

 

 

 

Intensity or color varies from left to right of characters

1.

Display

and color bars

2.

Video adapter (if present)

 

 

3.

System Board

 

 

No power or fan not running

1. See “Hard disk drive boot error” on page 49.

 

 

Non-system disk or disk error-type message with a

1. Diskette Drive

known-good diagnostic diskette.

2.

System Board

 

 

3.

Diskette Drive Cable

 

 

Other display symptoms not listed above (including blank

1. Display

or illegible display)

2.

System Board

 

 

 

Power-on indicator or hard disk drive in-use light not on,

1. Power switch/LED assembly

but computer works correctly

2.

System Board

 

 

 

 

Printer problems

1.

Printer

 

2.

System Board

 

 

Program loads from the hard disk with a known-good

1. Run Setup and check Startup sequence.

diagnostics diskette in the first 3.5-inch diskette drive

2.

Diskette Drive

 

 

3.

Diskette Drive Cable

 

4.

System Board

 

5.

Power Supply

 

 

RPL computer cannot access programs from its own hard

1. If network administrator is using LCCM Hybrid RPL,

disk.

 

check startup sequence:

 

 

a. First device - network

 

 

b. Second device - hard disk

 

2.

Hard disk drive

 

 

RPL computer does not RPL from server

1. Check startup sequence

 

2.

Check the network adapter LED status

 

 

Serial or parallel port device failure (system board port)

1. External Device Self-Test OK?

 

2.

External Device

 

3.

Cable

 

4.

System Board

 

 

 

Serial or parallel port device failure (adapter port)

1.

External Device Self-Test OK?

 

2.

External Device

 

3.

Cable

 

4.

Alternate Adapter

 

5.

System Board

 

 

Some or all keys on the keyboard do not work

1. Keyboard

 

2.

Keyboard Cable

 

3.

System Board

 

 

 

70ThinkCentre Hardware Maintenance Manual

Page 78
Image 78
Lenovo 4480, 4471, 4466, 4498, 4485, 4474, 4496, 4477, 4497, 4476, 4495, 4499, 4473 If network administrator is using Lccm Hybrid RPL

4476, 4499, 4485, 4497, 4480 specifications

Lenovo's ThinkPad series has long been synonymous with durability, performance, and enterprise-grade features, and the models 4474, 4473, 4477, 4468, and 4466 are no exception. Each of these models brings distinct characteristics and technologies tailored to meet the diverse needs of users ranging from casual consumers to business professionals.

The Lenovo 4474 model excels in portability and performance. Featuring a lightweight chassis, it is designed to be carried easily for on-the-go professionals. It is equipped with Intel’s latest processors, ensuring quick response times and efficient multitasking capabilities. The display, often a Full HD resolution, enhances the multimedia experience, making it suitable for presentations and video playback.

The Lenovo 4473 model stands out with its robust security features. It comes with a fingerprint reader and an integrated Trusted Platform Module (TPM) to provide an added layer of security for sensitive information. This focus on security makes it an excellent choice for businesses that prioritize data protection and compliance with various regulations.

The 4477 model is recognized for its exceptional battery life. With energy-efficient components and optimized power management technologies, users can expect extended productivity without the need for frequent charging. This model is perfect for users who need to work remotely or in environments where power sources are not readily available.

For those seeking a balance between versatility and performance, the Lenovo 4468 model is an appealing choice. This model supports a wide range of connectivity options, including USB-C, HDMI, and Ethernet ports, catering to various peripheral needs. Additionally, it typically features an ergonomic keyboard and a responsive touchpad, enhancing the user experience for long typing sessions.

Lastly, the Lenovo 4466 brings innovation in terms of display technology. With options for touchscreens and high-resolution displays, this model caters to creative professionals who require precise color accuracy and vivid graphics. It offers a solid performance for design tasks, video editing, and even gaming, making it a versatile option for different scenarios.

In summary, Lenovo’s models 4474, 4473, 4477, 4468, and 4466 are tailored to address specific user needs, whether it be portability, security, battery life, connectivity, or display technology. These ThinkPad series laptops continue to exemplify Lenovo's commitment to quality and innovation in the computing space.