Brother MFC-8220 - 1.3.13 Scanner Control; 1.3.14 Power Supply

MFC-8220
SERVICE MANUAL
3-9
1.3.13 Scanner control
Fig. 3-15
1.3.14 Power supply
+5V is generated by the 3-pin regulator from astable 7V supplied from the LVPS. +5V is used
for the IEEE1284 interface, the LD PCB and the engine PCB. In addition, +1.9V is generated
by the 3-pin regulator from 3.3V supplied from the LVPS. +1.9V is used for the CPU within the
ASIC and the logic circuit.
Fig. 3-16