Acer AL716 AL716 Monitor Service Guide - Page 38

7. Power Line Transient Test (IEC 61000-4-4 Fast Transients/Burst) TEST CONDITIONS & PROCEDURE: (Follow IEC 61000-4-4) Test Condition : The condition is base on operating with 50Ω load. 7.1 Peak Voltage: 2 KV (applies the Level 3 typical Industrial Environment" of IEC 61000-4-4) 7.2 Polarity : + / - 7.3 Repetition Frequency of the impulse : 5 KHz. 7.4 Rise-Time : 5ns ± 30% 7.5 Impulse Duration: 50 nS ± 30% 7.6 Relation to Power Supply: Asynchronous 7.7 Burst Duration: 15 ms ± 20% 7.8 Burst Period: 300 ms ± 20% 7.9 Climatic Conditions: - Ambient Temperature: 15°C to 35°C - Relative Humidity: 45% to 75% - Atmospheric Pressure: 86 kPa to 106 kPa 7.10 Test Procedure: The monitor Display set high-resolution mode, AC input use AC 240V. Note : 7.10.1 IEC 61000-4-4 defines that power supply, I/O line, and control line all shall be performed the transient test, but the I/O line and control line is applied with only half of peak voltage (1 KV). 7.10.2 For the comparison of wave-shape generated by different generator, so the test must uses a scope with at least 400 MHz bandwidth, and coupled to 50 Ω to monitor the rise-time, impulse, duration, and repetition rate of the impulses within one burst. 38