GearForGood
New Member
HI everyone, I am new to this site. I have a retirement project called Gear for Good Causes where I accept donated sound and music gear that people no longer want or use or is in need of repair. I fix this gear and then sell it and donate the $$ to registered charities. You can find out more at my website gearforgood.ca
Some of the gear I get is beyond my skill to repair, especially in the area of electronics. I am learning as I go and can do some basic repair work. But there are times I need help from the pros. My latest repair challenge is a Carvin LM 15 PA cabinet that is powered with a built in amplifier. The circuit protect light will not go off. The unit does not make any sound. I have tested the woofer and horn with another amp and they work fine. The multimeter shows that they are running at the correct impedance. I replaced the relay switch that feeds to the speaker outputs. I am wondering if there is any advice about what the likely causes may be? I have attached a schematic. Any help would be appreciated.
Some of the gear I get is beyond my skill to repair, especially in the area of electronics. I am learning as I go and can do some basic repair work. But there are times I need help from the pros. My latest repair challenge is a Carvin LM 15 PA cabinet that is powered with a built in amplifier. The circuit protect light will not go off. The unit does not make any sound. I have tested the woofer and horn with another amp and they work fine. The multimeter shows that they are running at the correct impedance. I replaced the relay switch that feeds to the speaker outputs. I am wondering if there is any advice about what the likely causes may be? I have attached a schematic. Any help would be appreciated.