TThe CD-ROM drive plays music CDs but the sound is not heard. However, .WAV and .MIDI sounds can be heard when played.

Check that the cable connecting the CD-ROM drive to the system board CD audio connector is in place and secure.

Check the CD Audio volume setting.

Speaker Problems

Check the following problems to see the possible cause and solution.

No sound from the speakers.

Check that the speaker power is on. Verify that all speaker cable connections are correct and secure.

Check that the power adapter is connected to the power source and the speaker.

Speaker volume is too low.

Adjust the volume control on the speaker. If the volume is still too low, adjust the volume through the system software. See the Windows Multimedia online help.

Sound is only coming from one speaker.

Balance the speaker output by adjusting the balance in the sound software. See the Windows Multimedia online help.

Diagnostics

One beep indicates that the system has completed its POST test. If intermittent beeping occurs, power off the system and try again. If the beeping persists, see the following table. The table summarizes problems that may develop during system operation and lists (in sequential order) suggested corrective actions.

Problems and Solutions

Problem

Symptom

Solution

No power

Power lamp on computer front

 

panel does not light.

1. Check that the power cord is plugged into the power socket on the computer.

Check that the other end of the cord is plugged into a live, properly grounded AC power outlet.

2. Check cable connections between the power supply and system board and between the system board and power switch.

3. Systematically eliminate possible shorted PCBs by removing cables and expansion boards.

7-6 Troubleshooting

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NEC VT 300i manual Diagnostics, Speaker Problems, Problems and Solutions, Problem Symptom Solution

VT 300i specifications

The NEC VT 300i is a versatile and compact LCD projector designed for educational environments and business presentations. With its impressive combination of features and user-friendly design, the VT 300i has made a mark as a reliable choice for professionals and educators alike.

One of the standout features of the VT 300i is its brightness. With a robust output of up to 3,000 ANSI lumens, the projector ensures that images are clear and vivid, even in well-lit rooms. This brightness level allows users to deliver impactful presentations without the concern of image washout due to ambient light conditions. Coupled with a high contrast ratio of 400:1, users can expect sharp, detailed images that enhance the overall viewing experience.

The VT 300i showcases advanced DLP projection technology, which is known for producing sharp images with excellent color accuracy. The inclusion of NEC’s proprietary Intelligent Auto Setup feature allows the projector to adjust to various input sources automatically, making setup quick and hassle-free. This ensures that even those who may not be tech-savvy can operate the device with ease.

Another notable characteristic is the VT 300i’s portability. Weighing in at a little over 5 pounds and featuring a compact design, the projector is easy to transport between different locations. This portability is further enhanced by its integrated carrying handle and durable casing, making it suitable for frequent travel.

The connectivity options of the VT 300i also cater to modern technology needs. It includes multiple input terminals, such as HDMI, VGA, and USB, enabling seamless integration with various devices like laptops, tablets, and other media players. Additionally, it supports both wired and wireless presentations, making it versatile for different presentation settings.

User-friendliness extends to the maintenance aspect as well. The VT 300i incorporates an easily accessible filter and lamp compartment, simplifying the process of replacements and ensuring minimal downtime. With a lamp life of up to 5,000 hours in eco mode, it offers longevity and cost-effectiveness.

In conclusion, the NEC VT 300i stands out with its combination of brightness, advanced projection technology, and user-friendly features. Whether in an educational setting or a business meeting, it offers reliability and quality, making it a popular choice for users seeking a competent and portable projector.