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Posts Tagged ‘teardown’

Philips T8 LED tube teardown

Tuesday, May 3rd, 2016

In a previous post Electronupdate did a teardown of a 48" T8 Cree LED tube, this time a 48" T8 Philips LED tube.  

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Teardown: A couple of laptop batteries (aftermarket vs original)

Thursday, April 28th, 2016

Viktor writes:  I've recently opened up a few laptop batteries and decided to take some pictures. Keep reading if you've ever wondered just how different the Chinese aftermarket batteries are compared to the originals. More details at Karosium homepage.

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48″ T8 Cree LED tube teardown

Tuesday, April 26th, 2016

Electronupdate has posted a teardown video of 48" T8 Cree LED tube: LED based replacements for old T8 fixtures are finally becoming reasonably priced. I see two old competitors back at it again: CREE, and Philips. Both bulbs attractively priced, both 4000K. I tore down the Cree 1st. Longest circuit...

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Counterfeit Macbook charger teardown: convincing outside but dangerous inside

Monday, March 21st, 2016

Ken Shirriff writes, "What's inside a counterfeit Macbook charger? After my Macbook charger teardown, a reader sent me a charger he suspected was counterfeit. From the outside, this charger is almost a perfect match for an Apple charger, but disassembling the charger shows that it is very different on the...

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555 timer teardown: Inside the world’s most popular IC

Monday, February 22nd, 2016

Another great teardown article by Ken Shirriff, a look inside the 555 timer chip: Given the popularity of the 555 timer, I thought it would be interesting to find out what's inside the 555 timer and how it works. While the 555 timer is usually sold as a black plastic...

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Keysight EXA Signal Analyzer/Spectrum Analyzer review, teardown & experiments

Monday, December 28th, 2015

Another video review from TheSignalPath, Keysight EXA Signal Analyzer/Spectrum analyzer: In this episode Shahriar reviews the Keysight EXA Signal Analyzer / Spectrum Analyzer (N9010A). The X-Series Signal Analyzers and Spectrum analyzers from Keysight are compared against each other. The EXA is a general purpose spectrum analyzer with extensive applications. The...

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Rigol DSA875-TG 9kHz – 7.5GHz Spectrum Analyzer & tracking generator review, teardown & experiments

Friday, November 20th, 2015

Rigol DSA875-TG 9kHz – 7.5GHz Spectrum Analyzer & tracking generator review, teardown & experiments from TheSignalPath: In this episode Shahriar takes a close look at the top-of-the-line Rigol DSA875-TG 7.5GHz Spectrum Analyzer. This unit which, offers a built in tracking generator for the full frequency range, has a portable form-factor. I...

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Cambridge audio A4 stereo Amplifier Mods

Tuesday, July 7th, 2015

Steve did a teardown and refurbishment of a Cambridge Audio A4 Amplifier: In this video, Steve disassembles a Cambridge Audio A4 Integrated Amplifier which he rescued before it was thrown away. The amplifier is refurbished with new electrolytic capacitors and a clean inside before performing a modification to make the dials...

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Teardown, repair and analysis of an Anritsu MS2721A 7.1GHz portable spectrum analyzer

Monday, May 11th, 2015

Teardown, repair and analysis of an Anritsu MS2721A 7.1GHz portable spectrum analyzer by Shahriar of TheSignalPath: In this episode Shahriar takes a look at an Anritsu MS2721A portable spectrum analyzer which does not completely boot up. After displaying the message “Application Running!” the unit no longer advances to the main...

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Review and teardown of the Analog arts SL987 USB oscilloscope AWG pattern generator and Logic analyzer

Wednesday, February 11th, 2015

Review and teardown of the Analog arts SL987 USB oscilloscope AWG pattern generator and logic analyzer by Shahriar of TheSignalPath: In this episode Shahriar takes a close look at the Analog Arts USB based mixed-domain instrument. The SL987 offers an oscilloscope, arbitrary waveform generator, FFT-based spectrum analyzer, pattern generator and logic analyzer...

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Posted in Teardowns | 1 Comment »

HP 8642B teardown

Friday, September 12th, 2014

Kerry Wong writes: In my last post, I showed my LED backlight mod of the HP 8642B synthesized signal generator. And during the process, I also showed some pictures of the A1 (keyboard and LCD) module and A2 (modulator) module alone with an intriguing Easter egg message in the firmware....

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Fluke 196B Handheld ScopeMeter repair

Thursday, February 6th, 2014

[embed]http://www.youtube.com/watch?v=kMmzITAZkWM[/embed] Teardown and repair of a Fluke 196B Handheld ScopeMeter: In this episode Shahriar goes through the teardown and repair process of a Fluke 196B Handheld ScopeMeter. This unit, which has been purchased as a "dead" unit from eBay, is examined for faults. During the teardown, various PCB components, architecture...

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Tektronix PS2521G power supply teardown

Monday, November 11th, 2013

Kevtris tears down the Tektronix PS2521G power supply.  He produced this post detailing his findings.: Weellll, I needed a good bench power supply, so I finally broke down and bought one.  I got a Tektronix PS2521G.  This doodad has three isolated outputs.  This means that each of the three outputs can be wired...

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Tear down of an HP ProCurve 2824 Ethernet switch

Tuesday, February 5th, 2013

Free PCB builder extraordinaire Kenneth did an extensive teardown of an HP ProCurve 2824 Ethernet Switch. He analyzes the PCB piece by piece, explaining the smaller function blocks and how they fit together. So that is how all of the internals of a 24 port managed switch interact with each other at...

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Posted in Teardowns | 1 Comment »

Weller DS701E soldering-desoldering station repair

Wednesday, January 30th, 2013

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 capacitors. After a quick replacement, the station started working as expected, with the exception of the...

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Weller WX 2021 soldering station teardown

Monday, January 28th, 2013

[embed]http://www.youtube.com/watch?v=6F1Fx0vjU5M[/embed] Presslab tears down the Weller WX 2021 soldering station. He is hunting for the pinout of the front panel serial connector. He was able to identify the serial IC used, and with it the pinout. Via the forum.

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Posted in Teardowns, tools | 1 Comment »

LED sign control board replaced with Arduino

Wednesday, January 9th, 2013

Bob picked up a huge LED matrix sign on eBay that has power supply problems. After fixing the power supply, he decided to replace the controler boards with an Arduino. Via Hacked Gadgets.

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Posted in LEDs, repair, tutorials | 1 Comment »

Analog Discovery teardown

Tuesday, December 4th, 2012

Mat received his open 7400 contest prize, the Analog Discovery bench tool. He was quick to tear it down and find out how it ticks. The brain of the beast is a Xilinx Spartan-6 FPGA which works in conjunction with a few analog specific IC, like the AD9648 125 MSPS...

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Posted in Teardowns | 1 Comment »

Voltcraft PS-1305/230 power supply teardown

Thursday, September 27th, 2012

Arhi tears apart the Voltcraft PS-1305/230 isolated 0-230 volts AC 4.5 Amp power supply. It also comes with a 0-30V 5A, and 5V 3A DC channels. The laboratory power unit is a combination of direct current power unit and safety variable isolating transformer with alternating current output. Via the forum.

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DIY BGA soldering teardown

Friday, July 27th, 2012

Andrew decided to write up a how-to on DIY BGA soldering. His article describes why it's a bad idea to keep the vias unfilled with solder before reflow. Capilary force sucks up the ball of solder into the via, and there is no solder left to make contact between the...

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Posted in DIY, how-to | 1 Comment »

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