Hey guys I can't seem to get this amp to produce a drive wave. With 12v input my tl494 reads....
Pin1: 1.140v
Pin2: 3.165v
Pin3: 4.788v
Pin4: 4.174v
Pin5: 1.624v
Pin6: 3.566v
Pin7: 0.000v
Pin8: 4.965v
Pin9: 0.000v
Pin10: 0.000v
Pin11: 4.965v
Pin12: 11.95v
Pin13: 4.965v
Pin14: 4.965v
Pin15: 1.986v
Pin 16: 6.950v
Also the lm358
Pin1: 7.95v
Pin2:0.328v
Pin3: 1.076v
Pin4: 0.000v
Pin5: 9.30v
Pin6: -0.111v
Pin7: 3.010v
Pin8: 2.470v
Thank you in advance for any assistance.
Pin1: 1.140v
Pin2: 3.165v
Pin3: 4.788v
Pin4: 4.174v
Pin5: 1.624v
Pin6: 3.566v
Pin7: 0.000v
Pin8: 4.965v
Pin9: 0.000v
Pin10: 0.000v
Pin11: 4.965v
Pin12: 11.95v
Pin13: 4.965v
Pin14: 4.965v
Pin15: 1.986v
Pin 16: 6.950v
Also the lm358
Pin1: 7.95v
Pin2:0.328v
Pin3: 1.076v
Pin4: 0.000v
Pin5: 9.30v
Pin6: -0.111v
Pin7: 3.010v
Pin8: 2.470v
Thank you in advance for any assistance.
Post a good quality photo of the component side of the entire main board and the component side of any driver boards if no one can help.
Pin 15/16 is where the input to the 494 is causing the IC to shut down. Pin 16 must be below pin 15.
Pin 15/16 is where the input to the 494 is causing the IC to shut down. Pin 16 must be below pin 15.
