https://jestineyong.com Semiconductors, Test Equipments, Circuit Board Troubleshooting, Electronic Repair Courses and Many More! Wed, 18 Apr 2012 16:18:42 +0000 en-US hourly 1 https://wordpress.org/?v=5.4.19 https://jestineyong.com/power-led-does-not-light-up/ https://jestineyong.com/power-led-does-not-light-up/#comments Wed, 18 Apr 2012 16:18:21 +0000 https://www.jestineyong.com/?p=4026 When you see an equipment where the power LED does not light up don't quickly decide that it was the power section problem. You have to know that nowadays the consumer electronics equipment power LED signal is coming from the mainboard MCU. This mean if the mainboard MCU have problem or no supply voltage to […]

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