6. Carefully remove the inverter PCB and support base from the
oven.
7. Remove the air guide E by un-clipping the catch hooks
8. Remove the four screws holding the PCB to the inverter support
base.
Caution when replacing the inverter power supply (U)
1. Make sure that grounding plate is in place
2. Securely tighten the grounding screw through the side of the
chassis (Base).
3. Securely connect the 3 lead wire connectors
4. Make sure that the heat sink has enough space (gap) from the
oven. Take care not to touch any lead wire to the aluminium heat
sink because it is hot.
Figure 3
Removal of the inverter PCB
Figure 4
Disconnecting the PCB lock connector
9.3. Digital Programmer Circuit (DPC) and membrane key board.
22
Summary of Contents for NN-A872SBBPQ
Page 8: ...Inverter Gounding Figure 2 Inverter PCB layout 2 Feature Chart 3...
Page 10: ...4 Operation And Digital Programmer Circuit Test Procdure 5...
Page 11: ...6...
Page 12: ...7...
Page 13: ...5 Schematic Diagram 8...
Page 19: ...Convection and microwave duty cycles Figure 2 Grill and microwave duty cycles 14...
Page 35: ...Removing the oven back plate Figure 15 Removing the base plate Figure 16 30...
Page 42: ...37...
Page 43: ...Fuses are not blown 38...
Page 44: ...39...
Page 45: ...40...
Page 47: ...42...
Page 48: ...How to check semiconductors 14 Exploded View 43...
Page 54: ...49...
Page 57: ...52...
Page 58: ...22 Key Board Matrix 53...
Page 59: ...23 Digital Programmer Circuit Parts 23 1 E603L4V20BP E603L4V30BP DPCAU 54...
