Question about HP Jornada 820

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Will not turn on

Resetting for 5+ sec did not bring the computer to life. Does the battery need to be installed for the 820 to turn on?
I have it connected to an Astron 12 volt power supply (16 amps) because the battery and cover are missing.

Larry Coblentz

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Posted on Jan 02, 2017

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SOURCE: Power Supply

Use HP D530 power supply to run SSF desktop which can run on 12v dC current. Just by using one 6000VA in series

Posted on Jan 03, 2008

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SOURCE: Compaq dead after power company shutdown period

Sounds like a blown fuse in the psu, replace the unit and you should be good to go.

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SOURCE: HP notebook will not restart after closing cover overnight

Think it went into hibernation. Unplug from a/c adaptor, and remove the battery. Let it sit for 2 or 3 minutes, then plug in a/c adaptor and turn the unit on. It should reboot like new.

Posted on Mar 16, 2009

  • 3153 Answers

SOURCE: Pin Name Color Description

Yes this is a good list of the voltages to be expected from a newer power supply on just the main header

Posted on Aug 11, 2009

  • 18 Answers


um what you want lol:?

Posted on Sep 07, 2009

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