H.P. vs19e good170vdc. no 5v or 12vdc

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  • PlainBill
    Badcaps Legend
    • Feb 2009
    • 7034
    • USA
    #21
    Re: H.P. vs19e good170vdc. no 5v or 12vdc

    Originally posted by alexanna
    I have verfied voltage on the three sm resistiors. starts out at 167 and I see 2.7vdc at the last one.Also 2.7 vdc at pin 3 of smps controller.This way above my head,What do we know at this point?
    Assuming the voltage at each junction of the resistors decreased linearly (112 volts at the junction of R912 and R915; 57 volts at the junction of R915 and R918), we know the SMPS controller (SG6841SZ) is bad; it can be replaced at a cost of $6.00, and that others have repaired monitors with the same symptoms and the same IC simply by replacing the SG6841SZ.

    If I had the monitor on my bench, the SG6841SZ would have been ordered, as well as the caps to completely recap it. I'd already be writing up the copy to sell it for $65 on Craigslist so I can free up the space and justify buying another 'toy'.

    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.

      Comment

      • alexanna
        Member
        • Mar 2010
        • 1346
        #22
        Re: H.P. vs19e good170vdc. no 5v or 12vdc

        It is doing just as you describe. Thankyou for all the help,I feel i have learend quite a lot on this project.
        Whatever I do, I consider it a success, if in the end I am breathing, seeing, feeling and hearing!

          Comment

          • Dgtech
            E. Technician
            • Apr 2009
            • 1462
            • Steeler
            #23
            Re: H.P. vs19e good170vdc. no 5v or 12vdc

            Funny you mentioned that Plainbill, I just sold this same type of monitor for $57 on ebay. All I had to do was recap and it's back in service. I wanted it to be sold for more but ebay just isnt the way to go. Then there's shipping. Ugh.. Too much house traffic for CL, not safe here in Baltimore.
            It was a nice monitor though.
            Attached Files
            Last edited by Dgtech; 06-01-2010, 03:22 PM.
            The strong-minded rise to the challenge of their goals,the weak-minded BECOME HATERS

              Comment

              • PlainBill
                Badcaps Legend
                • Feb 2009
                • 7034
                • USA
                #24
                Re: H.P. vs19e good170vdc. no 5v or 12vdc

                Originally posted by Dgtech
                Funny you mentioned that Plainbill, I just sold this same type of monitor for $57 on ebay. All I had to do was recap and it's back in service. I wanted it to be sold for more but ebay just isnt the way to go. Then there's shipping. Ugh.. Too much house traffic for CL, not safe here in Baltimore.
                It was a nice monitor though.
                The supporters of SB1070 claim that Phoenix isn't safe, either. When I'm buying I would much rather go to the seller's home or place of business. Meeting in a K-Mart parking lot isn't conducive to a good business relationship.

                Still, to each his own.

                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.

                  Comment

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