Hello I got a MRV-F353 V12 amp from a budy of mine, he told me that it used to work fine but some of the channels where burnt out, then one day it just quit working, so he let me have it to work on. I opened it up and found a couple risistors and transistors blown, so I replaced them. I took it to work to hook it up to my power supply and test it, but it still want power on. So my question is where should I start, Ive look for the wiring scamtic but was unable to locate one. Any help would be nice. Thank You

Car Audio & Video - Alpine - MRV-F345 Car Audio Amplifier