Ask your specific questions about audio repair.

We will try to answer your specific question about your repair case or symptoms your unit has.
It is extremely hard to do expert answers to all questions online without basic diagnostic. It could be hundreds different reasons why your unit is not working or acting bad , but we will try our best .
Answer will be based on real life experience and our vision how to start , what to test and places to pay attention. We can approximately estimate repair cost. Technology level is not important . We will need brand name , model number and specific defect symptoms belongs to your unit . Audio equipment only. No speakers . (They belong to acoustic devices.) All brands. Thanks.