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Dilian
Lv 4
Dilian asked in Consumer ElectronicsTVs · 4 months ago

short cirsuit on a TV power board?

I accidentally shorted the positive terminal to one of the ground terminals on the power board while measuring the input voltage to the main board on a Philips TV set. After that, whenever I power it up without the main board connected i get 3.36V at the input but when i disconnect from power, connect the main board and power the TV up again, the voltage drops to 0.05V. I know some component on the power board has died but which one? Everything is visually intact, any ideas? I can apply photos of the main and power boards if necessary. Thank you

1 Answer

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  • spacemissing
    Lv 7
    4 months ago

    If you can't figure it out, 

    you should never have tried to work on it in the first place.    

                              

    Either get a copy of the service manual and do some more probing 

    or, better, put it back together and take it to a TV repair shop.       

                        

    Telling a tech that you messed with it yourself might Not be a good idea...  

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