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    Peavey XR8600D powered mixer no output

    No output signal and no DC on the outputs.

    Power supply voltages check good.
    I get signal through the aux input from the mixer to the power amp board on J11 as seen from my scope. I have signal...
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    There are not that complicated. I built mine from...

    There are not that complicated. I built mine from parts I bought from a home improvement store. Hardest part these days in the USA is finding an incandescent bulb as we are quickly replacing them all...
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    Man if it was me, Id also build me a dim bulb...

    Man if it was me, Id also build me a dim bulb tester. This will help protect those new parts if you end up still having a short somewhere.
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    All, I was able to swap the pins with a little...

    All, I was able to swap the pins with a little more effort. Amp works fine now. Good to know there is source as all of the jacks in this amp where starting to get pretty corroded. As for the...
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    Thought about that and tried but it was being...

    Thought about that and tried but it was being pretty stubborn. Will give it another try tomorrow with some different tools.
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    Where to find this jack?

    Notice the jack has the grounds on the right side instead of the more common left side. No brand markings. Pulled from an Ibanez SW65 headphone jack. Tried a cliff jack and the headphones didn't...
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    Thanks Mark. Unfortunately I have the same issue...

    Thanks Mark. Unfortunately I have the same issue regardless if I use battery or power supply. I quickly loss DC power much past the Q1. I did educate myself on the docks and in fact found one for...
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    Yes the ticking was happening battery or power...

    Yes the ticking was happening battery or power supply. I swapped the 4558 for a TL022 per Mark's instructions and the ticking stopped. I seem to have my volume back as well. Pedal sounds amazing....
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    The ticking is there with the effect on or off. I...

    The ticking is there with the effect on or off. I did set the bias using the pot but it was days ago. It could've gotten bumped with all the moving around. Will check it again when I get back to it.
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    Looking at this a little closer and I think I'm...

    Looking at this a little closer and I think I'm more worried about the volume loss at this point. Coming out of the output of the first op amp I am losing almost half of my signal. I am no boss...
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    Found the hardware guide. Will continue to...

    Found the hardware guide. Will continue to troubleshoot.
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    Line 6 Echo Park dead

    This thing is completely dead. No LED or any signs of life. I've tried it with a battery and my 9 volt DC bench power supply. Does anyone have any experience with these and this issue? The boards...
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    Merge with...

    Merge with https://music-electronics-forum.com/showthread.php?t=48817
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    Thanks for the replies. Looks like I have an...

    Thanks for the replies. Looks like I have an original JRC4558. Think it's been doing this since it was manufactured? Saw you mention the R and C mod in another forum. Sounds like I may have to go...
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    Changes with the rate pot. I assume that is the...

    Changes with the rate pot. I assume that is the modulation speed?
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    1980 Boss CE-2 ticking

    I have a black label CE -2, serial number 0000 on the bench. Pedal works well but has a ticking on or off and also notice a volume loss when comparing the pedal in and out of the chain. I've replaced...
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    Just realized I posted this within the amp forum....

    Just realized I posted this within the amp forum. Mods, can you move this to effects?
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    That's it. It actually works fine and sounds...

    That's it. It actually works fine and sounds decent, minus the ticking.
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    Early Boss CE-2 Ticking

    I have a black label CE -2, serial number 0000 on the bench. I can't get this thing to stop ticking both on and off. The ticking changes with the rate and increases with the volume. I've read up a...
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    Here is the schematic they sent me for future...

    Here is the schematic they sent me for future reference.
    52635
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    These didn't seem to be paper, almost electrical...

    These didn't seem to be paper, almost electrical tape like. I plan to solder the copper strap. I had little bit of room to get this accomplished.
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    I have this transformer opened up. Looks like the...

    I have this transformer opened up. Looks like the thermal fuse is open. I'll get one of these on order and also replace these Chang filter CAPs. How do you all repair the cut transformer tape?
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    Transformer: 52629 52630 52631 52632 ...

    Transformer:
    52629

    52630

    52631

    52632

    52633
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    Here are pics of the amp. 52626 52627 52628

    Here are pics of the amp.
    52626

    52627

    52628
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    Enzo, I thought about this and was heading that...

    Enzo, I thought about this and was heading that route but one of the screws has a nut that is stripped, go figure. I just didn’t feel like dealing with it this evening. Maybe tomorrow I will break...
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    This looks almost identical to a Blues Jr. May go...

    This looks almost identical to a Blues Jr. May go that route depending on how/if Johnson replies.
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    I'll give it a shot. Hopefully their customer...

    I'll give it a shot. Hopefully their customer service is better than their part selection.
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    Johnson Loredo T25-R Power Transformer

    It has an open primary. Transformer has no markings. Three secondary windings: HV, Heaters, and another for SS circuits. No schematic to reference. Anyone have info on this?
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