Acoustic Solutions Hi-Fi Amplifier Repair and Teardown – Error U52, U53

In this video, Steve performs a Hi-Fi Amplifier repair and teardown on an Acoustic Solutions SP101 Hi-Fi Amplifier that displays Error U52 or U53 on the display. The amplifier is unable to store tone and balance settings and doesn’t always respond to changing the volume with the rotary encoder. The…

LCD Monitor Repair and Teardown – BenQ 19″ LCD Monitor

In the following videos, Steve performs an LCD monitor repair on a faulty BenQ 19″ Monitor that would not power up correctly and regularly displayed the ‘Auto Adjust’ message. The Peak Atlas ESR70 meter is used to test suspicious electrolytic capacitors in the power supply. http://www.youtube.com/watch?v=Jgpo406pJzE http://www.youtube.com/watch?v=7HjaKBd9yU8

Designing a Constant Current LED Driver – Part 2

In this video Steve interfaces the DC-DC converter circuit with a Microchip dsPIC33FJ16GS502 microcontroller to create a microcontroller-based constant current LED driver. The dsPIC33FJ16GS502 microcontroller has four analogue comparators which allow expandability to 4 independent constant current channels. http://www.youtube.com/watch?v=Jcble4aiNlw

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