Question about Televison & Video
Powwer cord killed laptop; will not start; LED on cord goes off when plugging into pc
Whatever happened you need to fix the TV first and maybe not try to hook the laptop back?
Posted on Nov 05, 2012
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Posted on Jan 02, 2017
SOURCE: Vizio P42HDTV Power on Diagnosis
Please check the U29 8 pin little surface mount mosfet it has this letters > FDS4935 > > In this part inputs 13.2 volts which is ok for the near 12 vdc but it > outputs 1.250 vdc i am 100% sure that this is all the problem > > check it out, and tell me if you´re agree with me > > On this output pin it feeds the audio Ic, the 7809 and the tuner side board > which needs de 12vdc too and its getting only the 5vdc part > > what do ya think?? > > Richard
Posted on Apr 13, 2008
SOURCE: No picture and no power LED
Hello. I have the exact same tv. and the same thing happened to me! What i did was buy a expensive Surge Protector and now it works! I hope this info is useful!
Posted on Apr 20, 2008
OK you need a volt meter to check the voltage output of your power pack as two things cause this now enough power out the pack to run your unit or the unit has a short both problems will unlight the light so you need to know if the power supply is working right first as it should say like 120 volts AC in and 12 volts DC 1000 ma out so you will need to mesure this with a volt meter. this is a common problem loading the load of the curcuit as in your TV is mor the the power pack is giving out thus shorting out the power pack of any voltage present, as the little LED light your seeing only takes 5 volts at very ittle current to light and dose not repersent the total voltage output of the power pack itself
Posted on Jul 03, 2009
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