Kyocera FS-1028MFP

2H9
2-3-1
2-3 Operati on of the PWBs
2-3-1 Power source PWB
Figure 2-3-1 Power source PWB block diagram
Figure 2-3-2 Power source PWB silk-screen diagram
SLEEP
+24V2
+24V1
+24V1
+24V1
+24V1
FAN
FAN
FAN
+3.3V2
ZCROSS
HEATN
THERM
Left
cooling
fan motor
Power
source
fan motor
Scanner
PWB
Power source PWB
Fuser thermistor
Fuser thermal cutout
Fuser unit
Switching
regulator
circuit
Zero cross
signal circuit
AC input
Interlock
switch
Main power switch
Fuser heater
lamp control
circuit
Fuser
heater lamp
YC107
SW101
111
1
1
1
1
1
YC104
YC106
YC108
YC103
YC105
YC102
YC101