Service Manual
Product spec and feature
2-22
Samsung Electronics
Supply
- Output Voltage : -400 V ~ -800V DC 50 V(ZENER using, DEV )
- Input contrast of the output stability degree : under
5 %
Loading contrast :
5 % or less
- Output Voltage Rising Time : 50 ms Max
- Output Voltage Falling Time : 50 ms Max
- Output Loading range : 10 M
~ 1000 M
- Output Control Signal (BIAS-PWM) : the CPU is HV output when PWM is low.
2.2.3.2(b) SMPS (Switching Mode Power Supply)
It is the power source of entire system. It is assembled by an independent module, so it is possible to use for common
use. It is mounted at the side of the set.
It is consisted of the SMPS part, which supplies the DC power for driving the system, and the AC heater control part,
which supplies the power to fuser. SMPS has two output channels. Which are +5V and +24V.
AC Input
- Input Rated Voltage : AC 220V ~ 240V AC 110V ~ 127V
- Input Voltage fluctuating range : AC 198V ~ 264V AC 99V ~ 135V
- Rated Frequency : 50/60 Hz
- Frequency Fluctuating range : 47 ~ 63 Hz
- Input Current : Under 4.0Arms / 2.0Arms (But, the status when e-coil is off or rated voltage is inputted/outputted )
THV
THV
SUPPLY
SUPPLY
OPC
OPC
VARISTOR
VARISTOR
SW1
( Front -Cover
Open Switch )
SW1
( Front -Cover
Open Switch )
CN1
(Main PBA CON.)
CN1
(Main PBA CON.)
SW2
( Rear-Cover
Open Switch )
SW2
( Rear-Cover
Open Switch )
DEV
DEV
MHV
MHV
