Miller Auto-Line Invision 352 MPa - Control Board PC1 − Power Off Checks

Always check unit before applying power (see Sections 8-2 thru 8-11).
TM-246193 Page 51Invision 352 MPa
8-22. Control Board PC1 − Power Off Checks
Pre-Regulator Control DMM Positive Lead DMM Negative Lead DMM Diode DMM Ohms
Buck IGBT Gate Drive IC U6 U6 Pin 6 U6 Pin 7 0.10 - 0.30 N/A
Inverter Control DMM Positive Lead DMM Negative Lead DMM Diode DMM Ohms
Inverter IGBT Gate Drive IC U16 RC9 Pin 6 U16 Pin 5 0.10 - 0.30 N/A
Inverter IGBT Gate Drive IC U16 RC9 Pin 6 U16 Pin 7 0.10 - 0.30 N/A
Inverter IGBT Gate Drive IC U17 RC9 Pin 6 U17 Pin 5 0.10 - 0.30 N/A
Inverter IGBT Gate Drive IC U17 RC9 Pin 6 U17 Pin 7 0.10 - 0.30 N/A
Snubber IGBT Gate Drive IC U13 RC9 Pin 6 U13 Pin 5 0.10 - 0.30 N/A
Snubber IGBT Gate Drive IC U13 RC9 Pin 6 U13 Pin 7 0.10 - 0.30 N/A
Inverter IGBT Gate Drive IC U16 U16 Pin 5 RC9 Pin 4 0.10 - 0.30 N/A
Inverter IGBT Gate Drive IC U16 U16 Pin 7 RC9 Pin 4 0.10 - 0.30 N/A
Inverter IGBT Gate Drive IC U17 U17 Pin 5 RC9 Pin 4 0.10 - 0.30 N/A
Inverter IGBT Gate Drive IC U17 U17 Pin 7 RC9 Pin 4 0.10 - 0.30 N/A
Snubber IGBT Gate Drive IC U13 U13 Pin 5 RC9 Pin 4 0.10 - 0.30 N/A
Snubber IGBT Gate Drive IC U13 U13 Pin 7 RC9 Pin 4 0.10 - 0.30 N/A
60Hz Auxiliary Power Bridge DMM Positive Lead DMM Negative Lead DMM Diode DMM Ohms
Auxiliary Bridge IGBT Gate Drive IC U1 RC3 Pin 6 (PRECOM) U1 Pin 5 0.20 - 0.90 N/A
Auxiliary Bridge IGBT Gate Drive IC U1 U1 Pin 5 U1 Pin 6 0.20 - 0.90 N/A
Auxiliary Bridge IGBT Gate Drive IC U1 RC3 Pin 6 (PRECOM) U1 Pin 7 0.20 - 0.90 N/A
Auxiliary Bridge IGBT Gate Drive IC U1 U1 Pin 7 U1 Pin 6 0.20 - 0.90 N/A
Auxiliary Bridge IGBT Gate Drive IC U4 RC5 Pin 1 U5 Pin 7 0.20 - 0.90 N/A
Auxiliary Bridge IGBT Gate Drive IC U5 RC5 Pin 3 U4 Pin 7 0.20 - 0.90 N/A
D37 D37 Anode D37 Cathode 0.20 - 0.90 N/A
D38 D38 Anode D38 Cathode 0.20 - 0.90 N/A
D39 D39 Anode D39 Cathode 0.20 - 0.90 N/A
D42 D42 Anode D42 Cathode 0.20 - 0.90 N/A
D43 D43 Anode D43 Cathode 0.20 - 0.90 N/A
D44 D44 Anode D44 Cathode 0.20 - 0.90 N/A
D11 D11 Anode D11 Cathode 0.10 - 0.30 N/A
D20 D20 Anode D20 Cathode 0.10 - 0.30 N/A
D18 D18 Anode D18 Cathode 0.20 - 0.90 N/A
D41 D41 Anode D41 Cathode 0.20 - 0.90 N/A
D46 D46 Anode D46 Cathode 0.10 - 0.30 N/A
D49 D49 Anode D49 Cathode 0.20 - 0.90 N/A
D51 D51 Anode D51 Cathode 0.20 - 0.90 N/A
D61 D61 Anode D61 Cathode 0.20 - 0.90 N/A