Question about Visonik VB212PKG Car Audio Amplifier

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Broken Potentiometer My vb212 has a broken/missing potentiometer on teh bass boost. I am not sure where I can find a schematic, or just the part. Can anyone help me? The part is called a C2K5X2. I think it is a 2k ohm pot. Any ideas?

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Contact the manufacturer in the owners manual or from where you purchased the unit from, ask them where or who the manufacturer is. Good Luck

Posted on Mar 28, 2007

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This is not program/software error. This is hardware error.
Damage is on the potentiometer. usually caused by a bad contact inside the potentiometer. The most common is the preamp-TYPE potentiometer.Faulty potentiometer can also occur in the other,
depending on what we hear, when (suddenly) the bass sound bigger or smaller, it mean that BASS potentiometer was bad.
Potentiometer must be replaced,because it can not be repaired or cleaned (except,you are experienced in parts repairing).. This is due to the potentiometer is to use a special type.

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Is distortion changes like we turn the OD/DS selector (changes to Boost-Natural-OD1-Blues etc)?
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I'm in the same predicament! I found this - it seems close, though the pins seem to be spaced closer together, but it looks like they might be bent to fit the wider PC board spacing. The rotating shaft also seems smaller - the original is larger than 1/4".
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Did you mean the treble control potentiometer (knob)?

This was posted as an amplifier problem, but since you mentioned that the use of the treble (button?) on the guitar is causing the clicking, i would have the treble potentiometer checked first.

It could have a loosely soldered or broken wire on any of the tabs, oxydized slider contacts, bad ground (negative) connnection, possibly dirt or damage on the resistive track inside the pot.

A broken wire can easily be resoldered, but if there is internal damage or oxydation, the potentiometer should be either cleaned or replaced.

In short words - it may be a faulty treble pot.

There are ways to disassemble and clean a potentiometer, but the difficulty of this task may vary and depends mostly on the type and build of the pot.

The other alternative is to have it replaced.

regards

Triarcuate

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