#6 [Repair/Upgrade] TDS3052 Oscilloscope repair скачать в хорошем качестве

#6 [Repair/Upgrade] TDS3052 Oscilloscope repair

A auction-bought scope is non-functional, the error is traced to the switch-mode PSU, which is repaired. The scope is then flashed to the latest firmware and upgraded to all options using an eeprom "hack". This couldn't have been done without the EEVblog forum member's discussion on the DIY options module: https://www.eevblog.com/forum/project... And GreatScott! has a great video on switch-mode PSUs which clarified their topology for me:    • How does a modern Power Supply work?!...   Finally, EEVblog did a teardown of this scope (the 4 channel version), which helped me get into the scope:    • EEVblog #564 - Tektronix TDS3054 Osci...   You should also note, that this series of scopes could have their bandwidth upgraded via a GPIB SCPI command, which isn't done here as its a top bandwidth model already. 0:00 Intro 1:00 Opening the unit 3:11 What's the issue 4:31 Proving its the PSU 10:14 Removing the PSU 16:23 PSU circuit analysis 17:43 Problem resistor found 25:31 Resistor replacement 27:28 Repairing a pad 28:58 Testing the PSU repair 30:09 Testing the repaired Scope 30:51 How options modules work 33:50 Upgrading the scope firmware 37:02 Hacking the option eeprom module 42:08 Checking out all the enabled options and capability