Sencore-tech-tips-196-using-the-cm2000s-multiburst-pattern-to-test-a-computer-monitors BANDWIDTH – Manual (PDF)

Erik from ManualsPlus — Fri, 26 Dec 2025 11:25:00 +0000

The manual provides definitions of key terms related to bandwidth, explains how to calculate bandwidth, and describes using the CM2000's Multiburst pattern to test a computer monitor's bandwidth. It also details troubleshooting steps for issues such as focus or high voltage circuitry problems that may prevent a monitor from displaying a clear Multiburst pattern.

Brand: Sencore-tech-tips-196-using-the-cm2000s-multiburst-pattern-to-test-a-computer-monitors
Model: BANDWIDTH
Type: manual
File size: 65.5 KB

Manual Overview

The Sencore CM2000’s Multiburst pattern is a diagnostic tool used to test a computer monitor’s bandwidth, which is crucial for displaying sharp and clear images. Bandwidth determines the monitor’s ability to transition pixels from on to off states quickly, affecting resolution and clarity. The Multiburst pattern consists of vertical lines that are one pixel wide, allowing technicians to assess if the video circuits can handle the necessary bandwidth. A crisp line indicates sufficient bandwidth, while a fuzzy line suggests inadequate bandwidth. The pattern also evaluates vertical resolution by displaying lines of varying pixel widths. For accurate testing, the monitor’s video amplifiers must meet specific bandwidth requirements, calculated based on the horizontal scanning frequency, active video time, and the number of horizontal pixels. For example, a VGA monitor requires a bandwidth of at least 25.2 MHz to display a single pixel-wide line clearly. Technicians should ensure that the monitor’s focus, high voltage circuitry, and video circuits are functioning correctly to pass the Multiburst test.