I have a JBL TLX PS12 sub. The power light is not coming on. I replaced the fuse. The light for power goes green for about 3-5 seconds and then the fuse blows. Any ideas why?
Do not poke around inside this amplifier. There are lethal Voltages in this amp that can easily cause more problems than you already have.
Is the sub in warranty? If so, take it to a repair center. If not, determine whether you want to repair this amplifier. If so, you have several options. You can buy a new plate amplifier or you can get this one repaired.