SZBK07 DC-DC converter with multiturn potentiometers
In this video I show you how to replace the built in potentiometers of the SZBK07 DC-DC converter for multiturn potentiometers. The multiturn potentiometers allow more precise current and voltage adjustment.
There are two main things to keep in mind:
1Do not use different potentiometers. The original potentiometers are 100 kOhm, so use 100 kOhm replacement potentiometers.
2Be careful about the polarity of the replacement potentiometers! Those which I present have their wiper (output) pin at the end and not in the middle as most of the traditional potentiometers.
For further clarification, check the image under the video!
Connection schematics
Close-up picture of the relevant part of the SZBK07 circuit and the multiturn 100 kOhm potentiometer.
