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Repair your own oscilloscope

Hotsolder repaired his malfunctioning Rigol, A bad rotary encoder can make your tools useless in worst cases. Fortunately it is an easy fix, he has created a slide show demonstrating just how easy it...

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Bus Pirate repair

Sal_The_Tiller posted a Flickr photoset of his Bus Pirate repair. Delicate surface mount surgery to replace a broken PIC chip: …I’ve got a permanent workspace and some projects that could use a Bus...

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Troubleshoot and repair a defective LCD monitor

Victor took apart a defective LCD monitor and repaired it. The LCD didn’t respond at all to the power button, so chances were good something was off in the power supply. Sure enough there was a...

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Weller DS701E soldering-desoldering station repair

Gelbanana had some free time on his hands and he decided to try and repair an old Weller DS701E soldering-desoldering station he had laying around. The problem was diagnosed to a couple of bad...

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Hot-air rework station repairing

Oakkar7  shares his experience repairing his hot-air station: I quickly checked the problem. There is no air flow at the nozzle. But I still heard the air compressor  sound. Today, I tear down and...

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HP 3468A bench multimeter repair

HP 3468A bench multimeter repair: There are a number of great older bench meters out there that would be perfect when upgrading from a hand held meter when working on the bench. The HP 3468A meter can...

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Reviving 80’s arcade, Super invaders

Stian did restoration of 80’s arcade. He wrote a post on his blog detailing the process: I did a visual inspection the board looking for shorts or burned out components, and replaced a few 100nF...

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Teardown and repair of an Agilent E4433B ESG-D synthesized signal generator

Teardown and repair of an Agilent E4433B ESG-D synthesized signal generator: In this episode Shahriar repairs an Agilent E4433B ESG-D Synthesized Signal Generator. This 4GHz unit shows the “UNLEVEL”...

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Teardown & repair of the Siglent SHS810 100MHz 1GS/s portable oscilloscope &...

Here’s a teardown & repair of the Siglent SHS810 100MHz 1GS/s portable oscilloscope & multimeter from The Signal Path: In this episode Shahriar examines the failure of a Siglent SHS810 100MHz...

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Teardown, repair & analysis of a Rohde & Schwarz FSH3 3.0GHz portable...

A teardown and repair of a Rohde & Schwarz FSH3 3.0GHz portable spectrum analyzer from The Signal Path: In this episode Shahriar examines a faulty R&S FSH3 100kHz – 3.0GHz Portable Spectrum...

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Repairing a Marconi Instruments 2955A Radio Communications Test Set, part 1

Mikko has written an article about Marconi 2955A repair: First off, I decided to see what was the deal with the CRT. I have never worked on CRTs before, I have understanding of how the picture is...

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Teardown, repair & calibration of a Valhalla 2701C Programmable Precision DC...

A teardown and repair of a Valhalla 2701C Programmable Precision DC voltage standard from The Signal Path: In this episode Shahriar examines a faulty Valhalla 2701C Programmable Precision DC Reference...

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Repairing the HackRF

Ramiro from t4f.org did a repair of a HackRF One and documented the whole process on his blog: I broke my HackRF One. I have no idea how, but I did it. While testing a power amplifier I realized that...

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Teardown, repair and experiments with the Anritsu 37347A 20GHz Vector Network...

Here’s another great video teardown from TheSignalPath: In this episode Shahriar repairs an Anritsu 37347A 20GHz Two-Port Network Analyzer. The unit does not boot up and as a result its internal state...

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AVO DA116 repair: Replacing the LCD

  Daniel Bailey from Bit Of A Hack did a repair of a digital Avometer DA116 and documented the whole process on his blog: Anyway, this post is about my AVO DA116. I did this repair a while ago and...

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Teardown, repair and experiments with a Tektronix RSA 6114A real-time...

Tektronix RSA real-time spectrum analyzer teardown from The Signal Path: In this episode Shahriar attempts a difficult repair of a Tektronix RSA real-time spectrum analyzer. This well-equipped...

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How Scotty made his own iPhone in China

Over the past two months we’ve been super excited to follow Scotty’s adventure recycling/refurbishing an iPhone 6S in the used cell phone market just south of Huaqiangbei, Shenzhen, China. Scotty...

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Teardown and repair of an Agilent 53152A 46GHz microwave frequency counter

Agilent 53152A 46GHz frequency counter teardown and repair from The Signal Path: In this episode Shahriar investigates a faulty Agilent 53152A 46GHz frequency counter. The instrument does not power on...

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Teardown and repair of an Agilent E3632A DC power supply

Teardown and repair of an Agilent E3632A DC power supply from The Signal Path: In this episode Shahriar & Rosanah investigate an Agilent power supply which does not appear to power on. It can be...

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Repairing a 1960s mainframe: Fixing the IBM 1401’s core memory and power supply

Ken Shirriff wrote a great article describing the repair process of  the vintage IBM 1401 mainframe computer: The problem started when the machine was powered up at the same time someone shut down the...

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