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5-6. Source Power Circuit
5. Circuit Descriptions
This circuit shows SMPS(Switch Mode Power Supply) which converts AC input voltage
(115V 50Hz, 127V 60Hz, 220V 50~60Hz, 230V 50Hz) to a high DC voltage.
The input AC source power is converted to DC through a wave rectifier (BD1) and the
converted DC power will generate a constant waveform on the switching transformer
using a high speed (100KHz) switching motion of TOP223Y.
The D104 will rectify the generated voltage and transform into a steady 12V DC source
power used for the digital display panel and relays. The regulator (KA7805) finally
transforms into 5V DC source power for the control board and sensor’s circuits.
Be careful to handle this circuit due to high voltages
(AC 115V 50Hz, 127V 60Hz, 220V 50~60Hz, 230V 50Hz)
Caution
Содержание RS277ACPN
Страница 14: ...15 1 7 Dimensions of Refrigerator inches 1 Product Information...
Страница 17: ...18 1 10 Cooling Air Circulation 1 Product Information Freezer Refrigerator...
Страница 47: ...48 4 Troubleshooting and major adjustment 4 1 Troubleshooting 4 1 1 If power is not ON Double Click...
Страница 51: ...52 4 Troubleshooting and major adjustment 4 1 Troubleshooting 4 1 5 If alarm sound Double Click...
Страница 53: ...54 4 1 Troubleshooting 4 1 7 If fan doesn t work 4 Troubleshooting and major adjustment Double Click...
Страница 70: ...71 5 1 Block diagram 5 Circuit Descriptions Double Click...
Страница 71: ...72 5 2 SCHEMATIC DIAGRAM 5 Circuit Descriptions Double Click...
Страница 72: ...73 5 3 WIRING DIAGRAM 5 Circuit Descriptions Double Click...
Страница 74: ...75 5 5 CONNECTOR ARRANGEMENT Main Board 5 Circuit Descriptions Double Click...
Страница 87: ...88 5 17 Load Drive Circuit 5 Circuit Descriptions Double Click...
Страница 92: ...93 6 Reference Information 6 2 Model name nomenclature...
Страница 93: ...94 The End Thank you...