@feedback-loop
  @feedback-loop
FeedbackLoop | #76 - Shure UA845 antenna and power distribution system repair @feedback-loop | Uploaded 5 years ago | Updated 22 hours ago
This is a look inside of two dead Shure UA845 antenna and power distribution systems. Both units turned out to have exactly the same problem. Yet another problem with a switch-mode power supply, and yet another case of bad electrolytic capacitors.

Previous video: https://youtu.be/t_3QQ9xotDo
AS3842 datasheet: http://pdf.datasheetcatalog.com/datasheets2/15/159170_1.pdf
AS3842 application note: http://pdf.datasheetcatalog.com/datasheet/ASTECSemiconductor/mXrvsyx.pdf
#76 - Shure UA845 antenna and power distribution system repair#94 - Fluke scopemeter keypad followup#74 - Anritsu MG3670B signal generator repair#80 - Servicing HP 8563E spectrum analyzer#148 - Audio-Technica ATW-DA49 followup#21 - Alesis SR-16 drum machine repair#92 - Datron 1071 LED display followup#61 - Zoom power supply teardown and repair#122 - Tektronix TDS5054B-NV-AV oscilloscope repair#140 - Agilent 33250A output amplifier replacement part 2#3 - Canon battery testing part 2#89 - Fluke 196C scopemeter repair attempt

#76 - Shure UA845 antenna and power distribution system repair @feedback-loop