Power Source Pcb - Kyocera Mita KM-4230 Service Manual

2-3-1 Power source PCB

L
Noise filter
~
*
circuit L1
N
H2 H1
H2 REM
H1 REM
A
B
C
* For 120 V specifications only.
Figure 2-3-1 Power source PCB block diagram
PSPCB
D001
Noise filter
circuit L2
Zero-cross
circuit
TR2
C
TR3
D
PT2 PT1
T1
D201
24 V DC
output circuit
IC2
D202 L201
PC1
PC2
PC3
Rectifier circuit
TRNS
C101
+
Q1 Q2
R129
PWM control
circuit (IC1)
A B
Q201
12 V DC
output
circuit
5.1 V DC
IC6
output circuit
IC3 (main)
Overvoltage/
overcurrent
detection
circuits
Q302
2A3/4
SLEEP SIG
24 V DC
GND
12 V DC
GND
D
5.1 V DC
GND
Z CROSS SIG
2-3-1