Question about IBM Open Box 49P2166 X345 514W REDUNDANT PWR SUPPLY Power Supply

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Schematic / wireing diagram

I would like to use a 49P2166 X345 514W powersupply for another radio project. I'm looking for a wireing diagram and/or schematic so I can convert the ps to a stand-a-lone for radio work. Thanks AL

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Easiest thing to do would be to meter out your power connectors, and locate the various voltages that way. Use a multimeter that can read up to 20v DC, and go round the connectors. On most PSU's the black is negative, and the various colours represent the other voltages.

Posted on Mar 05, 2009

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Flash on the green light,i guess it could be a false contact


Hil,

I'm going through here just to share the circuit diagram (schematic) for Boss PSA adapter because I know that many people need to repair their damaged fonts but can not get the original wiring diagram.

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Getting a schematic is rather doubtful. You might be able to get a general idea of the circuit from somewhere on the 'net.

Was the power supply dead?

ATX style power supplies have both a standby and main section. The standby supplies a low current +5 volts to a small portion of the motherboard.

If the component failure is in this section, this standby voltage will be missing or incorrect, and the computer will be dead- won't power on at all.

I've seen a number of catastrophic failures in this standby circuit, and repair isn't suggested or economically feasible, especially as some parts often poof beyond identification.

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Voltages are precisely regulated, and any substantial deviation (more than a few 10ths of a volt) indicate a problem, especially on the +5 & +3.3 lines.

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