Answer to: Why is my speaker have flashing lights and no sound?The problem is simple. The capacitor dan the i.c has spoil. Please check and chamge two 47uF 35v and I.C 1271A. Change this will settle the problem. Please check also other bloated capacitor if you see it when you open the amp. I suggest use a glove to protect your hand from CRC COMPOUND. TQ. thanks me later.