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Yokogawa DL1740E Oscilloscope Repair
Автор: TinLethax
Загружено: 2025-11-26
Просмотров: 124
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Another repair win. I recently got this very unique oscilloscope from Taobao. It's the Yokogawa DL1740E with the date code way back from the year 2006. The scope has its knobs missing, weird pulse artifact on all analog channel. Turned out the A6236LG comparator ICs were defective probably due to the accumulated dust and heat. Causing PSU to hiccup on negative 5 volt rail. Luckily I was able to obtain the replacement chip from Alibaba for $20 each (total $80) as well as replacing four Opamps. I managed to get it back to the working condition. Additional information available on my blog here https://tinlethax.wordpress.com/2025/...
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