Ok so when I test for the 5v at the ic on pin 4 it causes a audible sound to emmit from the power terminal area, it reads -8.67vdc then shoots up to 5 and the relay clicks. When I probe pin 6 it's the -8.67vdc
I used the RCA sheild for ground.
Check the resistance between the RCA shield and the Power Ground terminal. You should see near zero ohms. If this is not the case check R70-0 Ω resistor. It's also possible there is a blown trace or an open via connecting the top and bottom side of board.
Check the transistors in the yellow boxes with an ohmmeter.
Because the voltages on Pin 4 and Pin 6 are low, it possible that there is a shorted transistor, or the IC has failed.
Be sure to check the DC voltages on the header socket for the Class D daughter board.
Because the voltages on Pin 4 and Pin 6 are low, it possible that there is a shorted transistor, or the IC has failed.
Be sure to check the DC voltages on the header socket for the Class D daughter board.
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