Both of the led indicators are orange. The mute circuit is the protection circuit which is engaged.
If it does not sell, i will fix it. These are the best alpine amps ever made and it is worth getting fixed. I brighten some of my photos to show the flaws. The item "BROKEN OLD SCHOOL ALPINE 3558 2 CHANNEL SOUND QUALITY CLASS A AMP FROM JAPAN" is in sale since Thursday, August 5, 2021.This item is in the category "Consumer Electronics\Vehicle Electronics & GPS\Car Audio\Car Amplifiers". The seller is "andy4879" and is located in Cleveland, Georgia. This item can be shipped worldwide.