Post by Oneshoe on Sept 14, 2024 2:00:36 GMT
Bought the amp in 96 and its been sterling, I kept it pristine and used as an emergency amp. Having another 2 sometimes 3 amps it was more of an amp for home. It had sat in cold winters in my kichen in a flight case and all of a sudden nothing but the fan when turning on. Realised the damp/cold had caused issues with the connection between the transformer to the circuit board. The fitting connector that actually connects the mains and earth etc was suseptable to the cold/damp. A shot of switch cleaner would remedy it. However the last time it happened the amp began to pop loudly when turning standby on. Ive been told a resistor being soldered to the right places on the internal part of the switch will cure it. I just need someone with the knowledge and/or circuit diagram to help point me in the right direction. Im no electrician, but decided I needed to get pro-active and bought a soldering iron. Ive repaired leads, fitted jack inputs I just dont have the money or will to trail with my bass to a shop to do something I should of got into 20 year ago. I wouldnt have the confidence to start messing with internal parts on an amp but with the correct information I would try, but the level of expertise to solder on a circuit board is beyond my cack handed abilities. Hope someone can help as I have read this is a common issue on the AH250 SMX. Appreciate any help or input. THX