Panasonic TC-P55ST30 Interpreting SU-SD tests

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  • FastEddie52
    Member
    • Jan 2018
    • 18
    • United States

    #1

    Panasonic TC-P55ST30 Interpreting SU-SD tests

    I have a 2011 P55ST30 with a sold led power led that switches to 14 blinks when the power button is pushed again. I have checked all the power lines, Vsus, Vda and P15 and find no shorts. SC2 is Ok. I was testing SU and SD boards and I get the following resistance readings. On SU42-2 VFO I get 2.2 m. On SD42-6 5V_F I get 1.6m and on SD42-8 SCNR_PRO I get 1.6m. All other pins were open. Black probe was on floating ground screw.

    I saw a chart posted that had readings at some of the other pin locations. What does the lack of resistance indicate if anything?
  • tvtimmy
    Badcaps Legend
    • Mar 2015
    • 1160
    • usa

    #2
    Re: Panasonic TC-P55ST30 Interpreting SU-SD tests

    If your meter has a continuity feature( meter beeps when touched together ) use it to test again. If you hear a beep, you have a short. Low resistance means short, but I just use the beep test.

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