USB-C to 1541-II Power Adapter Low Voltage about c64-collection HOT 1 OPEN

Hi, first please try to find out if the problem is with the adapter or the drive. There are two ways to do this:

1. Clamp an ammeter into the 5v line between the adapter and the drive. Turn on the drive and measure the current.
2. If you have an electronic load, connect it to the adapter's 5V and GND, turn on the load and measure the voltage at a current of 1A.

If the floppy drive is working properly, it should never draw more than 1A of current on the 5V rail. If the adapter is working properly, the voltage should not drop below 4.8V at a 1A load.
The voltage drop of the adapter should behave similarly as shown in the following project: https://github.com/wagiminator/Power-Boards/tree/master/78xx_Replacement_SD8942

Also make sure that the individual cores of the connection cable between the adapter and the drive are thick enough (at least 20AWG) to have the lowest possible resistance!

from c64-collection.