Tek 220 scope teardown

This was a broken scope considered beyond worth to repair by service, but I got it working again… (white tape that holds jumper wire going to display connector). Thank you for service manuals in Internet. Google search and YouTube are repair hacker’s friend. Posted from WordPress for Android

Diel cheap tablet teardown

Here is teardown pics of several years old diel brand tablet sold by e-ville.com. The tablet costed around 50 euros at the time. It was cheap but not very good. And it broke quite quickly. Main ICs: WM8650 CPU, RT5370N WLAN, VIA VT1603, SAMSUNG K9GAG08U0E, two NANYA NT5TU128M8DE-AD Posted from WordPress for Android

GarrettCom Converter Teardown

The main components are BCM5325A2KQMG Ethernet switch, BCM5221A4KPTG Ethernet PHY, HFBR5961LZ fiber transceiver and LM2591HVT-3.3 simple switcher power supply. This looks like quite normal small Ethernet swich design. There is 5 port Ethernet switch IC handling copper ports directly and fiber through PHY IC. This device I opened was broken on power supply circuit. The

How To Reverse Engineer Rigol DS1054Z

How To Reverse Engineer, Featuring the Rigol DS1054Z article and videos in it show what is inside a four-channel digital scope. With four channels of input, Dave Jones was wondering how the engineers at Rigol managed to stuff two additional front ends into the scope while still meeting the magic price point of $400, it

EEVblog Tears into the White Van Speaker Scam

This is a refreshing video teardown. EEVblog Tears into the White Van Speaker Scam:[Dave Jones] shows us just how bad audio equipment can get with his white van speaker scam teardown. Dave exposes the global White Van Speaker Scam and tears down a Marc Vincent Surround Sound Receiver, one of the items sold in Australia through

USB To RS232/TTL PL2303HX Cable Adapter

Nowadays it is typical that small embedded platforms and modules offer TTL level (5V or 3.3V) serial port interfaces in them. The easiest way to interface such port to PC is to use USB to TTL level serial port converter (it is easier than adding external TTL-RS232 converter board and then connect to normal serial

7805 Voltage Regulator Teardown

You have most probably used 7805 voltage regulator many times. It is a simple way to get regulated +5V power supply. A Detailed Look at the 7805 Voltage Regulator post at hackaday.com points to an an amazingly detailed article about its theory of operation and implementation of 7805 regulator. As some elements looked a bit odd during