Technical data

Theory of Operation 4
N1911A/1912A P-Series Power Meters Service Guide 47
PSU Assembly
Purpose:
• Provides various DC power supplies
Inputs:
• 100 Vac~ 240 Vac, 50 Hz~ 60 Hz, 150 VA Max [from an external
source]
• Control lines [from front panel, via main board]
Outputs:
• +12 Vdc [to main board]
• +5 Vdc ]to main board]
• - 5 Vdc [to main board]
• - 12 Vdc [to main board]