VCC output is supported in the main unit firmware Ver17.29 or later.
When using VCC, set MENU Page 11: TGT VCC (5V) ON/OFF to ON by standalone operation of the main unit.
If you place a .YCM file containing the line "VCCOUTON" in the root directory of your SD card, the VCC output will be turned ON after the programmer is powered on. If you are using a NETIMPRESS acorde (AFX210) which cannot be operated standalone, please use the YCM file.