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Bugera V22, V55, or V55HD erratic channel switching or reverb switching behavior
This behavior has been observed on some Bugera V22, V55, or V55HD model valve guitar amplifiers, and is not caused by a faulty footswitch.
The root cause of the problem has been identified and addressed in production. Existing stocks of these models have also been modified at our central warehouses to eliminate the problem prior to shipment. However, we are aware that a small number of affected amplifiers have been sold to customers.

This is a component issue and it is limited to a batch of Bugera V22, V55, and V55HD amplifiers which were manufactured towards the end of 2009. The result is a simple malfunction of the switching circuit and there is no health or safety implication.

Being a thermal problem, it is more likely to occur at an elevated ambient temperature within the amplifier. The affected component is a 5V voltage regulator which is used in the amplifier's switching circuit, failure of this component causes the typical symptoms described above.

Should you find that your Bugera V22, V55 or V55HD amplifier is affected, please contact Bugera customer support to make arrangements for modification at an authorized Bugera service facility by clicking on the link below, selecting your country or region, and submitting a warranty authorization request:

http://www.behringer.com/EN/Support/War ... ation.aspx

Caution : There are no user serviceable parts inside these amplifiers. Once the chassis is removed from the cabinet, there is a high risk of electric shock even if the power cord is not attached and the power switch is "off". The operating voltages within the circuitry are potentially lethal and may still be present long after the unit has been turned off. Repair or modification work must only be performed by qualified service personnel.

SynysterGate$ píše:Ano, nějaký 5V regulátor se přehřívá a tím vzniká ten problém.

Fořt píše:U té Bugery je mono nebo stereo jack?

Fořt píše:Nebude ta součástka Zenerova dioda?

Cybermuff píše:

Fořt píše:Nebude ta součástka Zenerova dioda?

Když se v tom odkazu píše, že to je 5V regulator, tak asi ne.

Pokud je to combo někdy z roku 2009 a je koupený tady, tak je IMHO chyba to dávat na opravu jinam, než do Behringer servisu, což je Audiopro (pokud je to koupený v CZ). Zásahem třetí osoby může dojít k zániku záruky.