stevem Messages: 4733 Registered: June 2004 Location: NY
Senior Member
The schematic for the 702 driver/ power does not call for a 4.7 ur cap anywhere, nor 4 resistors in series!
I would guess that those resistors are in the biasing network of one of the output transistors which is making for the issue of low wattage.
Does that board still have 4 rectangular resistors on it that are about 1 inch long and 3/8s or so in diameter?
If the values for resistors R717 , 718,725 and 726 are not dead on 1 ohm and if the values of R 716,715,724 and 723 are not dead on 100 ohms then the output stage goes south wattage wise real fast!