This a very short video documenting the troubleshooting and repair of an ART SLA2 amplifier with a channel going into protect mode. ... https://www.youtube.com/watch?v=A3LBavKL1Ms
In part 1, I document the initial service of this Phase Linear 1000, which includes servicing and testing the main PCB and the peak unlimiter PCB.
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https://www.youtube.com/watch?v=EI9ZDDt0efc
This is a short video introducing the NAD 1155 PreAmp I'm servicing. There are 2 obvious problems, one of which I resolve in this video. Part 2 will be coming soon.
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https://www.youtube.com/watch?v=Ys80A21c3c8
This amp wouldn't power off and the speaker set B light was not working.
Parts Used:
White LED - DigiKey - 1516-QBL7IW60D-WW-ND
470 Ohm Resistor - DigiKey - 541-CMF55470R00FKR6CT-ND
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https://www.youtube.com/watch?v=BQ3AeyA107Y
I walk through the troubleshooting and repair of a Rotel RB-1080 that's blowing both fuses in the left channel.
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https://www.youtube.com/watch?v=RhDSwVrvMk4
In this video, I document the troubleshooting and repair of a Tektronix 2205 20MHz oscilloscope. As you'll see, I make a critical mistake during the repair. Don't make the same one I made.
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https://www.youtube.com/watch?v=D9HUaPes4d8
In part 1, I document the troubleshooting of a Tektronix 2213A oscilloscope with no channel 1 signal at the 100, 200, and 500 mV/division set-points.
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https://www.youtube.com/watch?v=xDMbhuoRXp8
In this video, I finish servicing the interesting Phase Linear 1000 unit. There are 5 boards that make up the autocorrelator noise reduction circuitry: log amp, bandpass 1, bandpass 2, and 2 correlators. I give an overview of each board's circuitry and then perform some basic testing to see how the noise reduction system performs.
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https://www.youtube.com/watch?v=j7z-XJ0dM5E