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  1. R

    tv has power but blank screen and no sound

    not much really i am an electrician though so i have knowledge of electricity and most of its components.
  2. R

    tv has power but blank screen and no sound

    the power light comes on but absolutely nothing on the screen and no sound other than the high pitched buzzing on the board. it does make the clicking sound like it usually does when it comes on but that is all. I checked the fuse and it ohms out and voltage reads on both sides.
  3. R

    tv has power but blank screen and no sound

    the tv screen just blinked off while i was watching it and it has no sound. I have it apart but not real familiar with tv repair and have no schematics on it. Green power on led comes on and something on the circuit board is making a high pitch humming sound. its a phillips maganavox model...
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