Olivetti d-Copia 300 Service Manual page 273

2FD/2FF/2FG
1-7-2 Adjustment-free variable resistors (VR)
The variable resistors listed below are set at the factory prior to shipping and cannot be adjusted in the field.
• High-voltage transformer PCB: VR42, VR201, VR204, VR205
• Inverter PCB: VR1, VR2
1-7-3 Remarks on main PCB replacement
When replacing the main PCB, remove EEPROM 1 to 4 from the main PCB that has been removed and then reattach it to
the new main PCB.
EEPROM4
EEPROM3
EEPROM1
EEPROM2
Figure 1-7-2
1-7-2