Can anyone help with this amp ?
The voltages on the driver board pins I do not understand what pins need to be referenced to secondary ground and what pins need to be referenced to negative rail .
If I use negative rail as reference I get one reading and if I test the same pin using secondary ground I bet a totally different reading .
So how do I know which ones to reference ? For example the + 12 volt
Pin on the driverboard if I reference secondary ground I get 112 volts if I reference negative rail I get 12.2 volts so which one is correct ?
The voltages on the driver board pins I do not understand what pins need to be referenced to secondary ground and what pins need to be referenced to negative rail .
If I use negative rail as reference I get one reading and if I test the same pin using secondary ground I bet a totally different reading .
So how do I know which ones to reference ? For example the + 12 volt
Pin on the driverboard if I reference secondary ground I get 112 volts if I reference negative rail I get 12.2 volts so which one is correct ?
