Questions & Answers for: dc offset transistors

DC offset then protection mode When I switch this amp on it will produce soung for a short while, 30 seconds to a minute and a half before the protection circuit kicks in. DC offset begins at zero and

DC Offset will cause this issue. DC voltage of more than around .5V DC, at the output of either channel, will cause this. If the amp has no offset, then the DC Protection relay coil has no voltage, or

...can u help Measure DC to ground on the output transistors to check for any offset. The protect circuit is the least likely to be the problem. Post the readings here and I'll guide you from there. ...

...DC OFFSET". MOST AMPLIFIER PROTECTION CIRCUITS REACT TO THIS CONDITION BY SHUTTING THE AMPLIFIER DOWN. THIS IS A CONDITION, NORMALLY BROUGHT ON BY SHORTED OUTPUT TRANSISTORS, THAT ARE TRYING TO PASS ...

...DC OFFSET WITHIN IT AND ACTUALLY PASS IT THROUGH EACH STAGE, YOU MUST DISCONNECT THE RCA INPUTS AND MEASURE THE DC VOLTAGE AGAIN. IF IT DISAPPEARS, THEN YOU HAVE A PROBLEM WITH THE STAGE BEFORE THE ...

DC Offset problem. - The amplifier is few month old and it was working well. - Now protection switch off the amplifier during booting process - in moment when speakers' relay need to be switched on. -

...DC Offset on one or both channels. With the unit all back together, find the emitter resistor, 1/2" long by 3/8" wide, made out of cement, with three leads.. From chassis ground, to the center of the ...

...DC Offset, Thermal Overload, or simply a voltage from a sensor transistor to the microprocessor IC,(display microprocessor) that communicates with the main microprocessor IC, one of the computers in ...

dc offset DC offset is most often caused by the bias level for the output transistors changing for some reason. This could just be that the control is dirty and needs to be cleaned and re-adjusted, or

...output stage internal to the amplifier such as a shorted transistor that is causing a DC offset or similar. Try disconnecting the speaker wires from the unit and report back with results and