|
Complete electronics novice. Bose sound dock 10. Switched on smelt some electrical burning, Removed power supply circuit board. Brown gunk on circuit board. around the big capacitors. but spread to other areas as well. Capacitor tops not domed, still flat. Have the capacitors blown or is there another issue? Appreciate any help. |
February 14, 2017 |
|
Brown gunk bad news. Probably escaped through cap vents, these prevent caps from going ballistic and making holes in your roof. Supply needs rebuild, and the amp will need attention, the output transistors may have gone into melt-down. Cause may be shorted speaker leads. I would recommend a visit to your local repair shop, it's not a job for a novice. Sorry to be the bearer of bad news. mike |
February 18, 2017 |
|
Is it an import from the US? Check the adaptor for voltage rating. UK electrics are 230/240 volts. US imports come with the 110/120 volt adaptor. Plugging the US adaptor into UK mains will burn resistors and blow capacitors. |
February 24, 2017 |
No answers yet. Contribute your answer below!
You must log in or create an account (free!) to answer a question.
Anyone can ask a question.
Did you already search (see above) to see if a similar question has already been answered? If you can't find the answer, you may ask a question.
CircuitLab's Q&A site is a FREE questions and answers forum for electronics and electrical engineering students, hobbyists, and professionals.
We encourage you to use our built-in schematic & simulation software to add more detail to your questions and answers.
Acceptable Questions:
Unacceptable Questions:
Please respect that there are both seasoned experts and total newbies here: please be nice, be constructive, and be specific!
CircuitLab is an in-browser schematic capture and circuit simulation software tool to help you rapidly design and analyze analog and digital electronics systems.