Ok, got my replacement PC Board v913. I need to warn you the one they sent me for V913 is not a direct replacement for the V913 that I have. The problem is the hook ups for the on/off switch. The v913 board has a socket for the on/off switch but my V913 wiring does not have a plug for the socket. The V912 board has lugs for direct soldering the wires. That matches what I have.  In my case I needed to remove the socket, cut off the pins and then solder the wiring. It seems my machine used the V912 board so they are NOT identical. From the images it seems I could have used the board for the DH 9117. Had I know it would have saved me a lot of grief. The moral is to visually check the board and compare it to the photos mnemennth provided. Order the one that fits.