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    Stage Line 500W amp repair project

    Also, is there something i could print out , or a program could use to make a face plate for this box with dial and LED info on it ?
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    Stage Line 500W amp repair project

    I apreciate your explanations, and i appreciate its going to take a while for you to get to know where my knowlage is at on this project and in general, but yes keep is as simple as you can please, i would rather read your comments and instructions and think , well yeah!, than read and have to...
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    Stage Line 500W amp repair project

    Hi yes, i know it is displaced by 1 pin, i did this purposely to show the orientation
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    Stage Line 500W amp repair project

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    Stage Line 500W amp repair project

    Also, i may do away with the sig gen output part as i have bought a cheap ebay one, that way i dont need another BNC connector
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    Stage Line 500W amp repair project

    Hi, i have fitted the IC,s with the top to the cut out in the sockets, as in pin 1 top left, as for fitting everything into the box, i will first work out best positions and then look at insulating the board from the case , also @WHONOES , is there any issues if i remove the LED,s from the board...
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    Stage Line 500W amp repair project

    I think the box is probably about the right size actually
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    Stage Line 500W amp repair project

    Well, hopefully i will receive some goddies from @WHONOES soon and i will be able to use my virtual scope and sig gen to see whats happening here, massive thanks to him and everyone else for all your support, i have no idea why the penny hasnt dropped yet, but hopefully it will soon, i hate...
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    Stage Line 500W amp repair project

    This is where i connected the speaker to the left and right chanels pre amp, connections 5 and 7
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    Stage Line 500W amp repair project

    Are we still working on this ?
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    Stage Line 500W amp repair project

    Yes i do, the more help the better, however i am waiting on @WHONOES to get this ossiloscope up and running, there is nothing more i can do apart from take readings, different people work in different ways, i am just trying to gather as much knowledge as i can, hope this isnt an issue
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    Stage Line 500W amp repair project

    Not going to go any further without guidance haha, i have got to this point 3 times now and always and up blowing transistors or something by being impatient, and it takes me a few days to test and replace parts to get back to here
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    Stage Line 500W amp repair project

    Did a little test today, i connected an audio input to the phono jack at the rear of the amp, then connected a speaker to the 0v and In--R, at connection 9, i did this for both chanels and i do get clear audio and the volume/gain on the front panel seems to work correctly, so i think the pre amp...
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    Stage Line 500W amp repair project

    Thank you for that, its not the actual building it, think i have difficulty understanding the schematic
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    Stage Line 500W amp repair project

    Few more bots arrived today
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    Stage Line 500W amp repair project

    Do you mean X3 and X4 are the second IC ?
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    Stage Line 500W amp repair project

    Ok, on the drawing there is only a positive symbol for the battery, is the earth/ground symbol also negative and chassis earth?, And C2 on the drawing connects to both opamps via the positive and ground/negative/earth
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    Stage Line 500W amp repair project

    Am i right in thinking X1 and X2 are 1 IC, AND X3 and X4 are the second IC ?, Also is the ground the negative of 9v battery or is the groung supposed to be the 0V rail, if that is the case where does the negative go to ?
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    Stage Line 500W amp repair project

    Ordered some better veroboard along with some more IC sockets, BNC to crock leads and a set of probes, should be here in a couple of days, Does anybody have any idea if my plan for the componants is right ?, i think it is, Cheers
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    Stage Line 500W amp repair project

    For what i have spent on componants to build this buffer circuit i could have just bought a cheap scope and sig gen, but i suppose i have learned some more so its worth it, and will aid me in understanding how to diagnose and finish this amp
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