Always check unit before applying power (see Sections 8-2 thru 8-11).
TM-246193 Page 57Invision 352 MPa
8-26. Power Interconnect Board (PC2) - Power Off Checks (Prior To MB510232A)
Power Interconnect Board PC2 DMM Positive Lead DMM Negative Lead DMM Diode DMM Ohms
Pre-Charge Resistor R14 R14 Bottom R14 Top N/A 200
SCR Gate Resistor R10 R10 Left R10 Right N/A 10 - 16.5
SCR Gate Resistor R11 R11 Left R11 Right N/A 10 - 16.5
SCR Gate Resistor R12 R12 Left R12 Right N/A 10 - 16.5
Pre-Charge Diode D5 AC3 R14 Top 0.20 - 0.90 N/A
Pre-Charge Diode D6 AC2 R14 Top 0.20 - 0.90 N/A
Pre-Charge Diode D7 AC1 R14 Top 0.20 - 0.90 N/A
Boost Gate Protection Diode D12 D12 Anode D12 Cathode 0.20 - 0.90 N/A
Boost Gate Protection Diode D13 D13 Anode D13 Cathode 0.20 - 0.90 N/A
Inverter Gate MOSFET Q1 Q1-S (Source) Q1-D (Drain) 0.20 - 0.90 N/A
Inverter Gate MOSFET Q2 Q2-S (Source) Q2-D (Drain) 0.20 - 0.90 N/A
Inverter Gate Protection Diode D1 D1 Anode D1 Cathode 0.20 - 0.90 N/A
Inverter Gate Protection Diode D2 D2 Anode D2 Cathode 0.20 - 0.90 N/A
Inverter Gate Protection Diode D3 D3 Anode D3 Cathode 0.20 - 0.90 N/A
Inverter Gate Protection Diode D4 D4 Anode D4 Cathode 0.20 - 0.90 N/A
Snubber Gate Protection Diode D8 D8 Anode D8 Cathode 0.20 - 0.90 N/A
Snubber Gate Protection Diode D9 D9 Anode D9 Cathode 0.20 - 0.90 N/A
Snubber Gate Protection Diode D10 D10 Anode D10 Cathode 0.20 - 0.90 N/A
Snubber Gate Protection Diode D11 D11 Anode D11 Cathode 0.20 - 0.90 N/A
Notes
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