Compaq R3000 series LCD Display info - help me change out my inverter please.

Posted on 2006-04-03
Last Modified: 2007-12-19

I have in my hands a Presario Laptop (R3000 series) R3410US.

The display has dimmed out (gradual failure) and now has NOT backlight at all.

I feel confident the issue is a failed INVERTER and i can ONLY assume that the
inverter is located inside the display (lid protion) itself.

I've downloaded HP/Compaqs Service manual for the product which
is very helpful with the assembly/disaasembly of the product, however ...
I does NOT deal with servicing the guts of the display.

Does anybody Know FOR SURE that the inverter IS infact located inside the "lid"
(display itself) and ...

Do you KNOW for SURE how to get the display OPEN without breaking it?

I find NO screws of other fasteners accessable to open the "lid"
but HAVE in my hands the replacement inverter, but the HP/Compaq
documentation is quite useless for this step, since it doesnot PICTURE the
part or it's location, nor does it go into the "how-to" of changing it out.

Any thoughts?

Please and Thank you oh so much.

Dave (the Pro From Dover TN)

Question by:ProFromDoverTN
    LVL 17

    Expert Comment


    Accepted Solution

    As I said in my original post...

    I've already downloaded (and printed) the service manual
    for this product (I should have specified -> c00212209.pdf)

    So do I get points for solving my own problem?

    The answer(s) are:
      1.) Yes the inverter lives INSIDE the lid with the display
      2.) the bezel cover screws are hidden under "bumpers"
           at the 4 corners of the display.
      3.) the part number specified in the HP manual is wrong
           ( or they've incorrectly packaged the part they sent)
           the part works fine electrically - but will NOT mount
           on the provided display mounting holes so it must "free float."

    Credit for HOW to disassemble the "lid" goes to
    from his pages at:

    A link to this site was found at:

    Thanks to those who at least read my question.
    this one is closed.

    The Pro From Dover TN
    LVL 17

    Expert Comment

    click support at the top of the page, post question requesting a PAQ/refund for this thread, be sure to leave a link.
    LVL 87

    Expert Comment

    The inverter is allways in the display lid area. The reason for that is that it creates high voltages which are hazardous. Such voltages should be kept to a short distance to reduce the possibility of the wires getting into contact with things they shouldn't touch. Another reason is that if the cables needed to pass through the display's hinge which allways moves that would increase the chance of the wires breaking and that would also increase the potential of shocking the user.
    LVL 26

    Expert Comment

    Do you like bad hair days?
    You are 'free floating' between 900 and 1300 volts DC in your lid.
    Not a good idea....

    Have a nice day.
    LVL 17

    Expert Comment

    I'm okay with whatever decision you make.. :)
    LVL 87

    Expert Comment

    That's OK with me too.
    LVL 26

    Expert Comment

    Sounds just ducky to me too..

    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    Enabling OSINT in Activity Based Intelligence

    Activity based intelligence (ABI) requires access to all available sources of data. Recorded Future allows analysts to observe structured data on the open, deep, and dark web.

    I recently purchased an HP EliteBook 2540p notebook/laptop. It has two video ports on it – VGA and DisplayPort. HP offers an optional docking station for the 2540p that also has both a VGA port and a DisplayPort. There are numerous online reports do…
    The Samsung SSD 840 EVO and 840 EVO mSATA have a well-known problem with a drop in read performance. I first learned about this in an interesting thread here at Experts Exchange:…
    Excel styles will make formatting consistent and let you apply and change formatting faster. In this tutorial, you'll learn how to use Excel's built-in styles, how to modify styles, and how to create your own. You'll also learn how to use your custo…
    In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor ( If you're interested in additional methods for monitoring bandwidt…

    760 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    11 Experts available now in Live!

    Get 1:1 Help Now