If the amplifier is burning hot probably it has gone bad because something is wrong with electrolytic capacitor on recapped '054544' module.Don't forget these capacitors are part of the typical application circuit of the LA4705 amplifier and they are used to prevent dangerous oscillations of it.So, check again you recapping job and look for short on the module.The best woud be to replace the module (and this not because I've reproduced it)