Just recapped driver board on sansui 9090(non DB version). I am able to get 50ma on left channel but only 43 on right channel(pots are about as low as they go on both sides-10ohnm and 2.7). I had also replaced 4 shorted outputs on the side that is slightly low. I can find no resistor out of spec on either side. They are supposed to be within 1ma of 50ma. Any suggestions on what could cause this?