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    Toshiba 32BV701B audio fault

    just been given a 32 inch toshibe tv, the previous owner said the set works fine, but after a short while the sound goes off! then if you turn it off and let it cool it comes back for a while then goes off again, i have powered the tv up and it does indeed come on, there is a strange zub zub...
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    Stage Line 500W amp repair project

    ok bottom end of D38 = -67.2VDC top end or D38= -17.4VDC top end of R117 = 67.2VDC power off and R108 measures 989, with the meter set on the 2000 in the Ω range
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    Stage Line 500W amp repair project

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    Stage Line 500W amp repair project

    Could I mesure the components on the right Chanel and compare it against the readings of the corresponding components on the left Chanel , For example R108 and R130, so on and so on?
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    Stage Line 500W amp repair project

    Yes Bob it was
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    Stage Line 500W amp repair project

    most people on here are better than me!! i have a hard time understanding exactly what i am to do to give you guys the best information and to not waste your time, if i didnt need help and advice i would not be on here,if i could understand the current flow of the schematic i would test each...
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    Stage Line 500W amp repair project

    could it have anything to do with this collector and emitter link still being in place on Q2
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    Stage Line 500W amp repair project

    I do believe you know what your talking about, and I do appreciate your input Bob I am just trying to not get confused with different people asking me to do different things, I am trying to learn , but it's going a little fast for me at the minute, Again I am thankful for your help, Reguards...
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    Stage Line 500W amp repair project

    Ok guys I appreciate everyone's help here, and you all have some really good input, am going to wait for kris to come back and see what he thinks , as he has been working on this with me from the start,and everything I have done so far has been from his instructions, please don't think I am...
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    Stage Line 500W amp repair project

    Yes
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    Stage Line 500W amp repair project

    set it to the 200m on the right hand side, and i get no reading as in 00.0, have black probe in common and red in v Ω ma
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    Stage Line 500W amp repair project

    please remember, i am a beginner and the extent of my knowlage is not much more than this thread!!
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    Stage Line 500W amp repair project

    that would be my bad then, i need to be on the vdc range? EDIT: i was on the 200m range on my meter
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    Stage Line 500W amp repair project

    ok adam just did this and i can not get a steady reading!! ti is tempriture sensative, if i blow on Q46 the resistance shoots way up and slowly comes back down??
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    Stage Line 500W amp repair project

    where are you talking about Bob?
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    Stage Line 500W amp repair project

    just before i do this , i may have an answer, there is a red link wire on the top of the board from near Q46,comes from + of BR3 then from there to the right chanel amp Q68 collector, then to the left chanel amp Q64 collector!!
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    Stage Line 500W amp repair project

    Do you mean between the removed leg of R108 and the PCB where the bottom leg should go?
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    Stage Line 500W amp repair project

    No change across 108 and no the fault light did not go off!
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    Stage Line 500W amp repair project

    is it possible D51 could be shot??? sorry my diagrams are not verry good yet :(
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    Stage Line 500W amp repair project

    ok R108 did indeed have a dry/bad joint at the top!, fixed that now if i mesure from T4 to D38 i get -16.5 on the cathode and -66.2 on the anode, hope this help as i am sure it was + one side before i did the dry joint
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