Viewsonic VG191b

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  • Lakerat
    Member
    • Sep 2010
    • 20
    #21
    Re: Viewsonic VG191b

    The lights test OK..... I put a meter across the ends of each transformers and get no readings but with power off I get the same Ohm readings for both.
    So I think something that provides power to them is not working...
    Where can I get a drawing on This board?

      Comment

      • Lakerat
        Member
        • Sep 2010
        • 20
        #22
        Re: Viewsonic VG191b

        OK with ohm meter on power side (input side ) of transformers I get 1 volt for the split second lights turn on when power switch is turned on

          Comment

          • retiredcaps
            Badcaps Legend
            • Apr 2010
            • 9271
            #23
            Re: Viewsonic VG191b

            Originally posted by Lakerat
            The lights test OK.
            How did you test the lights to conclude they are ok?
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              • Lakerat
                Member
                • Sep 2010
                • 20
                #24
                Re: Viewsonic VG191b

                I opened up my main monitor and A Viewsonic and made jumpers to try them.
                I also noticed that I should recap my main before trouble happens it is 5 years old

                  Comment

                  • Rtech
                    Badcaps Legend
                    • Jul 2010
                    • 1095
                    #25
                    Re: Viewsonic VG191b

                    You will be very lucky to get a schematic for this,and suspect you are at the stage where to get the thing to work, you will have to replace the Inverter board with a good one.

                      Comment

                      • Lakerat
                        Member
                        • Sep 2010
                        • 20
                        #26
                        Re: Viewsonic VG191b

                        I just bought a case light and tested the lights with the power supply it came with.The power supply runs off a plug from the computers power supply and has 2 plugs for lights (was 5.99 at Frys).
                        Could I take 2 of these power supplys and run the 4 lights for the monitor off them would the monitor work if I did this?I would use the power that goes to inveter board to run both power supplys and they look to be the right size to go where the orignal inveter board goes. would this work?
                        Thx

                        P.S. link http://www.frys.com/product/5948774?...H:MAIN_RSLT_PG
                        Last edited by Lakerat; 10-01-2010, 10:53 AM. Reason: added info

                          Comment

                          • Lakerat
                            Member
                            • Sep 2010
                            • 20
                            #27
                            Re: Viewsonic VG191b

                            I made my home made inverter and can see the the screen change shades and see lights in back of screen (did not reapply tape yet).
                            But no picture when when computer turned on but a steady green power light on front of panel... any idea on this?
                            Thanks

                              Comment

                              • Lakerat
                                Member
                                • Sep 2010
                                • 20
                                #28
                                Re: Viewsonic VG191b

                                UPDATE
                                I built my inverter and got the screen to work just meed to insulate it good
                                Total cost less than 15.00

                                  Comment

                                  • retiredcaps
                                    Badcaps Legend
                                    • Apr 2010
                                    • 9271
                                    #29
                                    Re: Viewsonic VG191b

                                    Originally posted by Lakerat
                                    UPDATE
                                    I built my inverter and got the screen to work just meed to insulate it good
                                    Total cost less than 15.00
                                    Great Ingenuity! Congratulations!
                                    --- begin sig file ---

                                    If you are new to this forum, we can help a lot more if you please post clear focused pictures (max resolution 2000x2000 and 2MB) of your boards using the manage attachments button so they are hosted here. Information and picture clarity compositions should look like this post.

                                    We respectfully ask that you make some time and effort to read some of the guides available for basic troubleshooting. After you have read through them, then ask clarification questions or report your findings.

                                    Please do not post inline and offsite as they slow down the loading of pages.

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