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Post subject: TBP-1 preamp: plug in foot switch causes amp to be mute
Posted: Thu Jun 20, 2019 12:55 am
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Joined: Wed Jun 19, 2019 11:59 pm
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Hello forum. Bass preamp TBP-1.

If I plug in the foot switch it causes the amp to be mute. The mute light is flashing. This happens as soon as I plug in on the amp. Without the foot switch jack inserted to the amp he works fine. Even while plugged in the 3 foot switches indicate by the control lamps that they are working except the last switch to trigger the mute. Pressed ore not the amp stays mute, no sound. It is an issue since I bought the amp new. By opening the amp I see a connection which might be the problem since it is touching (picture). Maybe a electric professional can tell me if that could be the cause or any help would be fine. And yes I did as mentioned in the manual release all the knobs on the front panel for proper foot switch functionality.
Thanks for input. Best Lee

PS: since I bought the amp in the US and I'm living in Europe I cant just co to the shop for support or reparation ...

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Post subject: Re: TBP-1 preamp: plug in foot switch causes amp to be mute
Posted: Sun Jun 23, 2019 7:34 pm
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That looks OK. Its just a trace to the IC there.
If the problem shows up when the gootswitch is plugged in, its probably a problem in the footswitch. Either a bad switch or a bad cable


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