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HP L1740 'No Input Signal'

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    #1

    HP L1740 'No Input Signal'

    Monitor turns on and then within 2 seconds displays a message about about there being no input signal. I have tested this monitor on multiple video sources same results.

    Replaced all caps and all the c5707's

    Any ideas? Thanks....
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    #2
    Re: HP L1740 'No Input Signal'

    Originally posted by Firestorm213 View Post
    Monitor turns on and then within 2 seconds displays a message about about there being no input signal. I have tested this monitor on multiple video sources same results.

    Replaced all caps and all the c5707's

    Any ideas? Thanks....
    Bad video input cable, source resolution wrong (unlikely), or problem with the logic card.

    PlainBill
    For a number of reasons, both health and personal, I will no longer be active on this board. Any PMs asking for assistance will be ignored.

    Never be afraid to try something new. Remember, amateurs built the ark. Professionals built the Titanic.

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      #3
      Re: HP L1740 'No Input Signal'

      Originally posted by Firestorm213 View Post
      Monitor turns on and then within 2 seconds displays a message about about there being no input signal.
      Are you the original owner of this monitor or did you get this from someone to fix?

      Was the above the original problem or was there something else wrong that led you to change caps and c5707?

      edit: Also, what did you use for the replacement caps?
      Last edited by retiredcaps; 10-19-2010, 11:47 AM. Reason: edit: Q about caps
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        #4
        Re: HP L1740 'No Input Signal'

        Like PlainBill has said before. Please post pictures of the two boards (power supply board and logic board). so we can see the problem. I was finally able to get my bad 1740s going. Two problems with my 1740s. Bad caps on power supply board and bad ccfls's

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