Power Source Pwb - Kyocera KM-C2520 Service Manual

2-3 Operation of the PWBs
2-3-1

Power source PWB

F001
AC
input
L002 L003
Fuser heaters control circuit
MH_OUT
SH_OUT
PR_OUT
DH_OUT
Rectification circuit
L008
D001
C015
+
Q001
Q017
Q002
Active
Switch-
filter
ing
circuit
control
(IC302)
circuit
(IC303)
vcc
Zero-
cross
detecting
circuit
Q006
+
Q005
C054
Switching
control
circuit
(IC304)
Figure 2-3-1 Power source PWB block diagram
D201
D202
T001
5 V DC
+ + + +
output
circuit
(IC202)
PC008
Over voltage
PC007
detecting
circuit
PC001
L209
T002
D209
24 V
D210
+ + +
DC
D211
output
circuit
(IC202)
PC009
PC006
PC002
PC003
PC004
PC005
5 V DC
3.3 V DC
output
3.3 V DC
circuit
(IC203)
GND
ZEROC
24 V DC
12 V DC
LVU_FAN
output
circuit
(IC204)
12 V DC
+
GND
FET_SLEEP
M_HEATN
S_HEATN
PR_HEATN
D_HEATN
2FZ/2F0/2HC
2-3-1