Here is teardown of one cheap car USB charger. It failed after few years of use. Outside Inside Electronics As you can see the fail was in soldering that connected two circuit boards. The fail had ripped of solder pads from circuit board. The soldering quality on some other places also questionable. There is simple →
Is Samsung Galaxy S9+ the fanciest Android phone at the moment? Only teardown will tell if this phone is a true contender, or just a weird AR Emoji machine. Read Samsung Galaxy S9+ Teardown by iFixit: two blades for changing aperture versus the usual five on normal cameras; battery, iris scanner, front cam are basically →
Ankaro SAT switcher 9×12 for antenna and satellite IF signals What is inside The construction looks like the input signals go to some kind of RF diode switch matrix. There are control ICs and output amplifier. Closeup →
Here is GE MT03M motor protector: Contactor, Miniature, Overload Relay, 5.5-8.0A Range • Control circuit up to 690V • Power circuit up to 690V • Three-pole differential (phase unbalance protection) • Automatic ambient temperature compensation between – 25ºC and + 60ºC • Choice of manual or automatic reset • Direct connection to contactor or independent →
I wanted to add an AC voltage meter to my electronics lab variac transformer output (0-275V AC). I decided to get a cheap Machifit AD16-22V 22mm Digital AC Voltmeter AC 20-500V Voltage Meter Gauge Digital Display Indicator with the following Specification: Model AD16-22V Mounting hole 22mm Voltage AC 20-500V Class of safety protection IP65 Color →
LED Energie brand LED bulb with following data stopped to work properly: 230V 50Hz 7W E27 450lm 3000K 60mA 20D 3684 Mod.5161 So lets make a tear-down Inside There seems to be 20 small LEDs in series inside bulb and one of them burned black. As such this LED string is expected to need around →
Here is a look what in inside a broken Laserliner Active Finder Plus contactless voltage tester that is designed to detect live lines from 24 V AC to 1000 V AC: Not much see on this side of circuit board. All I can see is place for two 1.5V batteries, beeper and LED. The other →
Here is view what is inside logitech wireless optical mouse. Let’s open it When doing tear-down on this mouse I was hoping to find what was wrong on this broken mouse. I could not see any reason why it did not work anymore. If you are wondering what is that component connected with wires to →
I decided to replace my aging Zyxel and Netwjork 100 Mbit/s Ethernet switched with new gigabit models. I decided to get two ZyXEL GS-108S v2 Media Switch as replacement for those. The Zyxel GS-108S v2 10/100/1000 Mbps switch is designed to provide reliable high-performance media network connectivity – that’s what I need. The Zyxel GS-108S →
I today that someone had made a partial tear-down of street light lamp post. So let’s take a look at wiring inside… There is not much here, just some thick wiring, wire connection blocks and fuse holder. →