Power Supply Pwb - Kyocera Mita FS-C5016N - Color LED Printer Service Manual

2-3-1 Power supply PWB

Power
Current
AC
switch fuse
input
Fuser
heater
lamp 1
Fuser
thermo-
stat 1
Fuser
heater
lamp 2
Fuser
thermo-
stat 2
Fuser
thermistor 1
Fuser
thermistor 2
Power supply PWB
Rectifier
circuit
Noise
filter
circuit
+
Zero cross
Switching control
signal
circuit (IC1)
generation
circuit
Triac
(TRA1)
Triac
(TRA2)
Figure 2-3-1 Power supply PWB block diagram
Transformer
(T1)
24 V DC
rectifier/
FET
smoothing
(Q1)
circuit
(Q2)
5 V DC
rectifier/
smoothing
circuit
Photo-
coupler
(PC4)
Photo-
coupler
(PC5)
Photo-
coupler
(PC3)
Photo-
coupler
(PC1)
Photo-
coupler
(PC2)
FS-C5016N
Enargy-
saving +24V1
circuit
(Q101)
GND
SLEEP*
+5V1
GND
Over voltage/
current
detection
circuit
ZCROSS
HEAT1DR
HEAT2DR
TH1
TH2
EXITPAP*
FUDR
FDDR
Engine
controller
PWB
2-3-1