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  1. #1
    OpelAus Enthusiast
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    someone who knows electronics?

    i have a powersupply for a security camera system (dvr) which has died.
    its an external plug pack like a laptop charger.

    its 19v 2.21A

    the closest replacement i can find is 19v 3.4A.

    can i use that or will i kill it?

    does it need to be exactly the same current output?
    Click here to enlarge Warning: This is an Old Thread
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  2. #2
    OpelAus Owner hazrd's Avatar
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    should be fine, as long as the brand of PSU, voltage, and connectors are the same, and the amperage isnt too much higher (in this case it isnt) you wont have any problems... the dvr will only draw the amps it requires, so thats all the PSU will put out.
    Sure, we dont have to worry about viking raids or scurvy anymore, but instead we make a daily routine of sitting in flimsy, fibreglass (or metal) boxes full of gasoline which are propelled in opposing directions on the freeway at velocities matching that of low flying aircraft.

    This is a roundabout way of saying that cars are dangerous....

  3. #3
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    well the brand wont be the same... the current one is a yum cha brand.
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  4. #4
    OpelAus Owner hazrd's Avatar
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    the brand shouldnt really matter, im just picky that way with my own stuff lol. how much is the dvr worth? did the company that made it say that the part was discontinued?
    Sure, we dont have to worry about viking raids or scurvy anymore, but instead we make a daily routine of sitting in flimsy, fibreglass (or metal) boxes full of gasoline which are propelled in opposing directions on the freeway at velocities matching that of low flying aircraft.

    This is a roundabout way of saying that cars are dangerous....

  5. #5
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    it came from jaycar about 4 years ago, no amount of googling has been able to bring up anything about the manufacturer to the point where id be able to get a replacement power supply.
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  6. #6
    OpelAus Enthusiast Keep'emRunning's Avatar
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    Click here to enlarge Originally Posted by Snotty Click here to enlarge
    i have a powersupply for a security camera system (dvr) which has died.
    its an external plug pack like a laptop charger.

    its 19v 2.21A

    the closest replacement i can find is 19v 3.4A.

    can i use that or will i kill it?

    does it need to be exactly the same current output?
    no, the dvr will only draw as much current as it requires. The new supply has a higher rating so 'twill be fine.

    As haz said, check the connector is the same, but more importantly check it's polarity as well Click here to enlarge

  7. #7
    OpelAus Forum Regular KID_SRi's Avatar
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    Click here to enlarge Originally Posted by Keep'emRunning Click here to enlarge

    As haz said, check the connector is the same, but more importantly check it's polarity as well Click here to enlarge
    It's most important the Polarity is same, Coz Either Blew the DVR sky high or Blow the Fuses in ya House. If you get it wrong

  8. #8
    OpelAus Enthusiast MAD-16V's Avatar
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    How will 19 volts blow the fuses in his house?
    Worst it would do is blow a diode on the DVR board if the polarity is backwards.

  9. #9
    OpelAus Owner poita's Avatar
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    trip the circuit breaker maybe, but not blow a fuse
    2013 Ford Focus ST
    Calibra - The only car that will institutionalise you and send you broke in the mean time

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  10. #10
    OpelAus Enthusiast MAD-16V's Avatar
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    It wouldnt even do that.

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