Hi
I am having trouble working out what is happening in the area of this schematic marked in red. I know pin 8 outputs +9V and seems to be rectified with all the diodes. What I dont get is why the "gnd" seems to come from the netural of the primary side of transformer t101 and the +9 comes from the netural of the secondary side of the transformer not the live. Does this mean the transformer steps down to +9 ?. Sorry for all the question but im having a hard time wrapping my head around this one.
Any help is much appriciated.
http://img203.imageshack.us/f/pro700acin.jpg/
I am having trouble working out what is happening in the area of this schematic marked in red. I know pin 8 outputs +9V and seems to be rectified with all the diodes. What I dont get is why the "gnd" seems to come from the netural of the primary side of transformer t101 and the +9 comes from the netural of the secondary side of the transformer not the live. Does this mean the transformer steps down to +9 ?. Sorry for all the question but im having a hard time wrapping my head around this one.
Any help is much appriciated.
http://img203.imageshack.us/f/pro700acin.jpg/