Bgodwillok Posted December 12, 2009 Report Share Posted December 12, 2009 I am repairing a CRS Switching Power Supply , Model: MPT-460EP PMC-1039-EPS-NT .Capacitors were bulged and I have replaced them and I noticed something is missing from the board. I have taken a photo of the area on the power supply board that shows the area where the missing part was. The area on the board where the part is missing is labelled R22 and seeing the R have guessed wildly the part may be a resistor with a value of 66 somethings. I have not searched for a schematic of the power supply yet and am wondering if the figures give an indication of the type of part I am looking for.By nickleboms at 2009-12-12Edited: I did a little research and think what I am looking for may be a Resistor of value 66mA . Can someone confirm this for me please? Quote Link to comment Share on other sites More sharing options...
Alex Tsekenis Posted December 12, 2009 Report Share Posted December 12, 2009 R66 is the name of the component as far as the schematic is concerned. R66 means that this is a resistor, number 66 on the schematic.Where did you get R22 from? That is clearly R66.If your component was not there initially then you should not place it because it is missing! Sometimes, it is useful for a manufacturer to have space for some components on the board that are not normally populated. This way they can change the specifications of the products by playing with those components.Not sure where you got 66mA from, it really is irrelevant here.Regards,Alex Quote Link to comment Share on other sites More sharing options...
Hero999 Posted December 12, 2009 Report Share Posted December 12, 2009 Sorry but if you need to ask such a question then you probably shouldn't be repairing it. Please don't be offended I would feel bad about myself if you got electrocuted and I didn't say anything to discourage you from doing something dangerous, Quote Link to comment Share on other sites More sharing options...
Bgodwillok Posted December 31, 2009 Author Report Share Posted December 31, 2009 A Happy New Year to everyone. I am please to tell I repaired this power supply.I replaced a 6800uF 10V capacitor with 2 x 3300uF 10V capacitors and the other 5 bulging capacitors and using it in my #1 computer. What I found out is the missing component may have been a manufacturing component used to test the unit after manufacture then clipped off before sale. Thank you for somewhere to come to let me think.......out loud about this power supply unit problem. Quote Link to comment Share on other sites More sharing options...
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