Power Source Pcb - Kyocera Mita KM-4530 Service Manual

2-3-1 Power source PCB

AC input
F1
MSW
Zero-cross
FH-S
FH-M
TR3
DH3 DH2 DH1
Power source PCB
Noise
Noise
filter
filter
circuit
circuit
L1
L2
circuit
PC3
L4
TR1 PT1
PT2
TR2
PT3
D13 D14
24 V DC
D12
output
circuit
IC2
L6
A
Over-
voltage/
over-
B
current
detection
circuit
Figure 2-3-1 Power source PCB block diagram
D1
Rectifier
circuit
C22
R34
R35
A PC1
PWM control
circuit IC1
B
PC2
5.2 V
DC
output
circuit
IC3
2BC/D
Transformer
Q3 Q4
Z CROSS SIG
FH-S REM
FH-M REM
DH
SLEEP SIG
Q5
24 V DC
GND
PSFM
5.2 V DC
GND
12 V DC
12 V DC
output
GND
circuit IC5
3.3 V DC
3.3 V DC
output
GND
circuit IC4
2-3-1