Question about Dell Latitude D510 Notebook

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Motherboard resistors RV2 and RV3

Can anyone help with the values of the 2 surface mounted resistors RV2 and RV3, by the charging socket on the motherboard, please?

Unfortunately, someone attempted to replace the DC socket and dislodged these 2 resistors in the process.

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  • thor918 May 11, 2010

    rustyk123, thanks for posting this!! is it 4ohm or 0.4 ohms your writing? 
     
    do you now the purpose for the resistor rv2? I just can't understand what the point is for a small resistans there.


  • bepposchnitz
    bepposchnitz Jul 17, 2012

    RV1 and RV2 are varistor for example VZ0603M260APT and the are for circuit protection against ESD, lightning bolt, inductive load

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RV1, RV2, and RV3 are capacitors. They're actually dark green in color because they're made primarily for automotive applications. If you remove one and measure it with a capacitance meter you can find the value. On a 600M/D600 I believe they're 150pF, but on other boards they may be 100pF. Digikey part numbers for them are 490-4962-1-ND for the 100pF, or 490-4767-1-ND for the 150pF. Good luck!

Posted on Aug 02, 2010

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I came across you post while trying to solve this. the rv2 might have fallen off due to design flaw. the value of rv2 is .4 ohms, just solder the two pins together and it will work perfect (better then dell's design). as for the rv3 it's value is 280k ohm this will need to be replaced.

Posted on May 29, 2009

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