Soundstream DTR1.2200D

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I’ve received 3 units of this amplifier to repair but my findings buy just inspection is the factory glue that’s used on the circuit board has corroded the circuit.
A quick test of the power fets and output fets reveals no direct short all units of the amps can be hooked up to 12v. The owner says they just stopped, no burn no funny sound. One is with power but no sound the others just no switching of power supply.
I’m going to remove some of the larger components so I can clean the board for start but does anyone have a schematic for this design as areas and components are rotted off the board. I should think it’s same as the Precision Power or AudioPipe Dclass amps, if I’m not mistaken.
 

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Ok, great Mr Babin. Two capacitor was corroded off the board I’ve circled it on the diagram, I would love to know the rating voltage (I see it’s 1nf) also can they be replaced by disc capacitor, as I don’t think I have these at hand as smd.
 

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I’m not getting this amp to start up normally but protection, but when I remove the LM393 IC from the board (power supply section) it starts up. Is this chip defective/too sensitive I don’t have a new one now to try. Or is there any known factors to consider as I don’t want to be removing the chip back and fort and damage the solder pads.
 
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