Acer CML174SXW, Service Manual

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5. POWER SUPPLY & INVERTER BOARD
5.1 Description
The Power supply and Inverter board is designed for Display control board and lighting up
the back-lights of LCD module.
5.2 Power supply ( AC to DC section)
5.2.1 input Voltage Range
The monitor shall operate within specification over the range of 90 to 265 VAC power supply.
5.2.2 Input Frequency Range
Input power frequency range shall be from 47.5 to 63 Hz over the specified input
voltage range.
5.2.3 Quick specification review
•
Input current
1.2A (max) at 90VAC input and full load ,
0.6A (max) at 264 VAC input and full load.
•
Inrush current @ cold start
30A(0-peak)@ 110Vac ,50A(0-peak) @ 220Vac
(measured when switched off for at least 10 mins.)
•
Output
Tolerance Output Current
Output Volt - MIN MAX
Volt Tolerance
+5Vdc
±
5% 0A 1.0A 4.8~5.2V dc
+5Vdc
±
5% 0A 1.5A 4.8~5.2V dc
+12Vdc
±
5% 0A 2.2A 11.4~12.6Vdc
•
Total output power: 48 Watt max.
•
Withstanding voltage : 1.5Kvac or 2.2KVdc for 1 minute.
•
Leakage current : < 0.25mA/100Vac , <3.5mA/230Vac
•
Efficiency : 80% min. @115V/230VAC, maximum load.