1. Product Overview

A multimeter is an essential diagnostic tool in LED display repair, widely used for measuring voltage, resistance, 

and continuity. It helps technicians quickly identify issues such as abnormal module power supply, open LEDs, 

or damaged ICs, making it indispensable for both routine checks and on-site troubleshooting.

For LED display repair, Fluke 17B+, Fluke 18B+, and Fluke 101 KIT are commonly used due to their stable 

performance and high accuracy, suitable for different repair needs.

2. Common Models

3. Key Parameters (for LED repair)

Common accessories: anti-static probes, test clips, spare batteries, insulation mats.

4. Typical Applications

1）No display → Measure 5 V bus, normal range: 4.8–5.2 V

2）Dim LED → Measure Vf (Red: 1.8–2.2 V; Blue/Green: 2.8–3.2 V)

3）Loose ribbon cable → Continuity test < 1 Ω is acceptable

5. Ordering Guide

To help confirm the right model, please provide:

· Usage scenario (e.g., indoor fine-pitch module onsite repair)

· Accuracy / feature needs (e.g., buzzer required)

Example: For P1.5 module onsite testing, with buzzer function, 1 × Fluke 101 KIT.

6. Safety Notes

1）Use anti-static probes to avoid LED chip damage.

2）Wear insulated gloves when testing high-voltage power supplies.

7. Any questions? Contact us: info@aoleled.com