Westinghouse LTV 32w3 HD

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  • Clydeuk
    Senior Member
    • Jan 2012
    • 193
    #21
    Re: Westinghouse LTV 32w3 HD

    I'm not familiar with this brand as we don't have them in the UK. Sharp here had issues with the connections to the tubes (EEFL tubes) which caused the set to error and refuse to start.

      Comment

      • landyboy
        Badcaps Veteran
        • Apr 2013
        • 443
        • USA
        #22
        Re: Westinghouse LTV 32w3 HD

        Sorry posted to the wrong thread... I'm not sure if all the lights lit up. The two center ones did. Is there a light for each bank on the inverter? It also hums quite a bit when I did the resistor check.

          Comment

          • vinceroger69
            Badcaps Legend
            • Mar 2012
            • 6714
            • uk
            #23
            Re: Westinghouse LTV 32w3 HD

            could you use one or more of these to test the invertor/tubes?
            https://www.badcaps.net/forum/showthr...er+testing+cfl
            http://www.ebay.com/itm/1pc-4-Lamp-B...item2ec1122f4b
            Last edited by vinceroger69; 05-21-2013, 02:05 PM.

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              • cashkennedy
                Badcaps Veteran
                • Aug 2011
                • 668
                • USA
                #24
                Re: Westinghouse LTV 32w3 HD

                There is a hand held tool that neon sign people use that just touching 1 side of a neon bulb will cause it to light up if its good. Its a pretty awesome tool, id assume something similar would work for fluorescents, although fluorescents require a ground within a short distance of the bulb so might work in a slightly different manner.

                And yes on TVs with inverters like that every 2 transformers usually powers a pair of bulbs. So if only some of the transformers are bad swaping the bulbs should have no effect on which positions light up.
                Fixed so far 12 lcd's , 1 plasmas, 5 monitors, 0 dlp's (plan to keep the dlps at 0). and 3 atx power supplies, and 2 motherboards.

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                  • Clydeuk
                    Senior Member
                    • Jan 2012
                    • 193
                    #25
                    Re: Westinghouse LTV 32w3 HD

                    If you have a bad CCFL tube, transformer etc that will cause the protection circuit to shut off the outputs, I've witnessed it directly on a spare tube I keep where one end would attempt to light very slowly before shut-off, the transformer had failed in that case. You will normally get a 2 seconds to black in this situation though. I don't know if the inverter from an old scanner will fire up larger tubes, I have a couple which I will try out sometime, it could be a handy tester if it does, 12v supply and a CCFL and that's all.

                      Comment

                      • landyboy
                        Badcaps Veteran
                        • Apr 2013
                        • 443
                        • USA
                        #26
                        Re: Westinghouse LTV 32w3 HD

                        I leaning towards no Blon voltage, going to try to trace that circuit out.

                          Comment

                          • budm
                            Badcaps Legend
                            • Feb 2010
                            • 40746
                            • USA
                            #27
                            Re: Westinghouse LTV 32w3 HD

                            If your BL_ON is stuck at less than 1V, then yes you need to find why the main is not sending out the BL_ON.
                            Never stop learning
                            Basic LCD TV and Monitor troubleshooting guides.
                            http://www.badcaps.net/forum/showthr...956#post305956

                            Voltage Regulator (LDO) testing:
                            http://www.badcaps.net/forum/showthr...999#post300999

                            Inverter testing using old CFL:
                            http://www.badcaps.net/forum/showthr...er+testing+cfl

                            Tear down pictures : Hit the ">" Show Albums and stories" on the left side
                            http://s807.photobucket.com/user/budm/library/

                            TV Factory reset codes listing:
                            http://www.badcaps.net/forum/showthread.php?t=24809

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