Night light teardown

Here is a teardown of cheap mains powered LED night light from LIDL. After few years of use this light became very dim and so useless. I opened it to see what is in it and what was broken. Let’s open it. Circuit board details Here is the circuit diagram. This is quite typical transformerless

Electrical car charging cables

There is a growing interest and investment in electric vehicles infrastructure. To change those electric vehicles here are many different options how this can be done – with different benefits and disadvantages. The charging time depends on the battery capacity and the charging power. The charging power depends on the power available from the power

Sony PlayStation Teardown

Celebrating the console’s 25th birthday in style, iFixit makes PlayStation teardown,breaks out the DualShock controllers and the screwdrivers reports https://www.hackster.io/news/ifixit-tears-down-a-launch-model-sony-playstation-to-celebrate-the-console-s-25th-anniversary-38f7d4522bbd The detailed tear-down is available now on the iFixit website. For those interested in the inner workings of the original PlayStation the company also has a service guide.

LED DMX-512 lamp teardown

Here is a tear-down of 36W Par LED PAR CAN Stage Light with IR remote and DMX-512 control from wish.com sale. The light works well with DMX-512 control. Front and back On the back there are XLR3 DMX-512 connectors, address display and control buttons. Look inside On the left there is aluminum circuit board with

Omron blood pressure monitor teardown

This is a teardown of an Omron M6 Comfort blood pressure monitor. This was several years old model (newer looks different). This teardown was done because this was no longer reliable – the display was missing most of graphics. Let’s open it. Open two screws and use pry tool to open plastic case. Let’s go

Extension cord failure and teardown

I had some problem with breakers tripping. Then the source of the problem turned to be this extension cord made by Bachmann. Sparking and blackening outside and also inside It seems that child protection mechanism failed and part of it was stuck between contact bars. This then caused sparking on contacts, which caused blackening. End

LED flashlight battery holder resistance

I had some broked LED flashlights and I thought of using components from them. Especially the compact battery holder that takes three AAA batteries looks useful in other small projects. Those worked OK when lightly loaded. But when I started taking current for a small motor, I could not get acceptable power out of them.

Bad wire connector teardown

I have earlier written about bad cheap Chinese wire connect that did not live up to specifications and was potentially dangerous for mains power at http://www.epanorama.net/newepa/2018/01/24/cheap-quick-wire-connector-block/ Here is teardown of that Let’s open open it Here was all. The problem in construction that there is quite weak spring that pushes against wire. On the other