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55HDS52 no picture no sound. no startup voltage on vsago and vcego connector on connector CN68 power supply and logic board was replaced and still no voltage. what create the 3.15 voltage on pin 2 and 3 for cn68 connector.



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55HDS52 no picture no sound. no startup voltage on vsago and vcego connector on connector CN68 power supply and logic board was replaced and still no voltage. what create the 3.15 voltage on pin 2 and 3 for cn68 connector.


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I have a insignia ns-lcd37 that has sound but no picture so i assumed a bad t-con board i replaced the t-con board with a new same problem left tv on for hours in a darkened room i saw no backlight i checked all my voltages at the power supply every terminal checked out good what could it be


Its 100% sure that the source of the problem is the backlight inverter board. The fact that there is no backlight confirms this. You will need to replace the backlight inverter board to resolve this problem. If you can get me the part number off the ... Flat Panel Televisions

My main breaker blew on my house and voltage dropped way down, anyway i replaced my breaker box but during all of this something blew. the tv wont come on now i have been told i need a new power supply board and an new convergance board. any ideas as to where to look for these items. this tv is real special to me, it was my late fathers. i would really like to fix this for sentimental reasons. any and all help i appreciated thanks in advance


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I have a Panasonic plasma tv tc-p42u2 tht won't power on at all I replace the power supply board with a new one and still not powering at all no lights.. Ac voltage going in is good ... Tv went out after a storm an wont power up at all plz someone help don't what to do ..


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Pn63c8000 samsung loud pop then no picture. Replaced power supply board. Now I have a little led pilot light lit and very slowly flashing on the logic board.When I turn it off I get a small vertical light flash momentary at the side edge of the screen. I inspected the screen and see no cracks.


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Tv won't turn on. replaced bad caps and after some testing it turned out that the power supply board wasn't giving the supposed voltages.


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I think I shorted out the power supply board on my Onkyo HT-R667. I was replacing some the capacitors to repair a hdmi switching issue. I was testing the repair with the top cover off. While it was powered on I accidentally touched the metal top to the top of the power supply board CMKM-P3X. There was a spark and the unit turned off. It won't turn back on. No lights. Can it be fixed or can I purchase a replacement board if this is even the issue. Thanks


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What is voltage supposed to be for P on pin on power supply?


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Power supply board test point voltages for Panasonic th-42pz77u


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Replaced upper y buffer, replaced caps. on y board, and x board new power supply board now clicks and blue flashing light 5-3


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Samsung lnt4665fx xaa video prolbem apperas main board has been zapped visible burn marks on hdmi port 2 blue light under samsung still comes on and red light flashes and relay clicks but no audio or video replaced caps in power supply did not help should the main board be replaced? should the main board be replace any suggestions would be helpfull thanks


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... Spectroniq PLTV3250 32 in. LCD TV

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