Clik here to view.
Power supply testing instruments and methodology
Power supply testing instruments and methodology introduction To avoid constant repetition of the same texts, here is a sum of all the information about how we test power supplies, what equipment and...
View ArticleClik here to view.
Repairing display: LG Flatron W1934S-SN
Computer LCD monitors are probably one of the most typical examples of Planned obsolescence, also called Warranty engineering. Even though sometimes the whole display is poorly designed (like BenQ...
View ArticlePower supply evaluation methodology
To avoid constant repeating of the same texts, here is a summary of all the information about how I evaluate the power supplies. This text will be updated if there are changes in methodology or...
View ArticleClik here to view.
Repairing display: Acer AL2023
Today we will look at the Acer AL2023 LCD monitor. It is a 20-inch display with P-MVA panel which gives it somewhat better colors and viewing angles than TN while having reasonable 8ms response time....
View ArticleClik here to view.
Repairing PSU: Chieftec CFT-750-14C
Introduction For the first time, we are taking a look into one bad computer power supply unit. Even better units than the el-cheapo (or gutless wonders), often even the high-end ones, go bad in time....
View ArticleClik here to view.
Repairing display: BenQ G2020HD
Introduction The BenQ G2020HD is a 20” display with a resolution of 1600×900 pixels, that means it’s categorized as a more modern 16:9 aspect ratio screen. It uses a TN matrix so it has quick response...
View ArticleClik here to view.
Repairing display: Acer AL1916W A (third version)
Introduction I have already repaired two different versions of the 19” widescreen Acer AL1916W monitor (and a couple non-wide versions too). Here is the third version. Externally, it is still the same...
View ArticleClik here to view.
Repairing TV/monitor: LG Flatron M2094DJ
Introduction Today’s patient is a strange one. On the one hand the fix was quite simple…actually, I wouldn’t even really call it a fix. I’m talking about the LG Flatron M2094DJ display/televisor, a 20”...
View ArticleClik here to view.
Repairing display: Samsung SyncMaster 931BW
Introducing the SyncMaster 931BW It took some time but we are going to have a look at another monitor. I had images of some great stuff, but unfortunately I got the camera card in when I got infected...
View ArticleDatabase of UPS inverter output waveforms (updated)
Introduction This overview is an attempt to built a database of real output from different uninterruptible power supplies running in battery mode. In other words, database of UPS inverter waveforms....
View ArticleClik here to view.
CeBIT 2016 Hannover: power supplies, enclosures and more
Introduction Once again, I went to Hannover to attend the 2016 CeBIT show in Hannover, Germany. This time however, I stuck around for two full days, which actually gave me the opportunity to go wander...
View ArticleClik here to view.
Repairing a printer: HP DesignJet 110plus
Introduction, the PSU After a long string of PSU reviews, we are once again going to be taking a look at some broken electronic devices (Unfortunately, I had a lot of these devices sitting around but...
View ArticleClik here to view.
Repairing a Display: Dell UltraSharp 2007Fp
Introduction, the display Dell UltraSharp 2007Fp displays were quite popular back in the day. And considering that they were 20.1″ displays with a resolution of 1600×1200 and a quality panel, not to...
View Article