Samsung SF4500, Service Manual

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6-28 Samsung Electronics
6-4 SMPS
6-4-1 Block Diagram of Power Circuit
Refer to the following block diagram.
POWER SUPPLY
6-4-2. Specifications of Power Circuit
6-4-2-1. INPUT CONDITIONS
1 Input Rated Voltage A C 1 2 0 Vac (a) A C 2 2 0 – 2 4 0 Vac (a) A C 11 0 – 2 4 0 Vac (a)
2 Input Voltage Turning Range A C 8 5 – 1 3 5 Vac (b) A C 1 8 0 – 2 7 0 Vac (b) A C 8 5 – 2 7 0 Vac (b)
3 Rated Grequency 60Hz 50–60Hz 5 0 – 6 0 H z
4 Frequency Range 57–63Hz 47–63Hz 47–63Hz
5 Input Current 0.5Arms 0.3Arms 0 . 5 A r m s
120V 220V Free Voltage