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Problem with Bugera 6262

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  • Problem with Bugera 6262

    I have a Bugera 6262 combo that just started a weird intermittent problem. While it's on the clean channel, sometimes it jumps itself to the crunch mode. While it's in the crunch mode, the footswitch becomes inoperable, and I can't get it to do anything. The lead channel button won't activate while it's doing this. I thought it was the footswitch, but this has happened without the footswitch plugged in. This has happened a half dozen times over 6 months. I took it to my local tech, and he couldn't get it to do this. Everything checked out normal. Anybody have an idea?

  • #2
    I have a similar problem with my bugera. sometimes it switches to the lead or crunch mode by itself. I only use the clean channel so it used to switch to the lead channel on its on a lot. but now it doesn't do that anymore. I hope it remains that way.
    Last edited by mbengs1; 07-07-2017, 08:20 PM.

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    • #3
      Can you post a schematic for us? Sounds like a switching transistor problem, but who knows.
      Originally posted by MrKnobs
      God, that's beautiful man! And they say romance is dead!

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      • #4
        A common problem with modern amps is the cheap and dirty voltage regulators that use a Zener diode and a power resistor.

        The power resistor heats up and sometimes causes an open circuit that can result in unexpected voltages which confuse the logic circuits that control the switching.
        As a human being, you come with the whole range of inner possibilities
        from the deepest hell to the highest states.

        It is up to you which one you choose to explore
        .

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        • #5
          You could ask the tech to make only one channel operable. that's what i'd do. I only use the clean channel so maybe u could 'disconnect' the other channels.

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          • #6
            Have you checked if yours is susceptible to radio frequencies as in RC car controllers?
            Originally posted by Unconfigured Static HTML Widget...







            Write Something, or Drag and Drop Images Here...

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            • #7
              Good for posting the schematic.

              I have a few questions first.

              Was the air temperature the same each time you had this problem ?

              Had the amp been running a while when this occurs?

              Are there any common circumstances associated with the problem occurring?
              Originally posted by MrKnobs
              God, that's beautiful man! And they say romance is dead!

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              • #8
                I don't have a schematic. I am absolutely not interested in "disconnecting" the lead channel. I would buy an amp with only clean, that is not an option. The gain channel is amazing on this amp, that's what I bought it for.

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                • #9
                  It has happened under completely random circumstances. The power resistor idea sounds logical, I will mention it to my tech, thank you.

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