Specifications

Figure 2–5: Power Supply Simplified Block Diagram
SURGE
CAPACITORS
TO LOGIC BOARDS
-12V
+42V
+12V
+5.1V
CR25
CR26
CR27 CR28
+42V
REG
+5.1V
REG
+12V
REG
-12V
REG
OSC
CNT
DOWN
12
VZ
12
VIZ
RECT
SWITCH BOX
EMI
FILTER
INPUT
A.C.
PV
VZ
CR48
OV
OV
HOLD UP
CAPACITORS
SPSR
+85V
OV
OV
PWR
STAGES
SPSD
SPSX
RE_UK00254M_89
+12V
+85V
}
CR10
THEORY OF OPERATION 2–13