Repair – Johan von Konow

Repairing noise canceling Bose headphones

Repair guide for broken noise canceling Bose QuietComfort 25 headphones.

How to turn three broken LED lamps into two working ones…

How to add: USB connection, FTDI drivers and a new postprocessor to a low cost CNC mill (Roland MDX-15 / MDX-20).

How to fix an AirPort Express Base Station that does not power up.

I added a 5V power adapter and a 3.3V LDO instead of the broken power unit.

Getting serial connection (5v RS232) from a USB SEMC DSS-20 SyncStation.

Guide for: Disassembly, Attaching serial communication cables, Remove serial EEPROM to avoid custom drivers for the FTDI232 chip.

How to fix a Samsung le40s71b that does not power up.

Hint – replace the broken capacitors ;)