- Using the VDI and the 1/4" output simultaneously? - No, can't fix it, the circuit trace looks damaged. BTW, it's not a resistor,... good guess though. - The jack plate assembly has a longer cable,... it's for a JTV-59. You will need one for a Variax Standard.   Check for Line 6 authorized service in your area,...   https://line6.com/find/service_center/