Panasonic NN-H264SFR Service Manual

Also see for Inverter NN-H275: Operating instructions Operating instructions Service manual

before handling the DPC.(A) Using solder wick or a desoldering tool and 30W soldering iron, carefully remove all solder fromthe terminal pins of the low voltage transformer and/or power relays.NOTE:Do not use a soldering iron or desoldering tool of more than 30 watts onDPC contacts.(B) With all the terminal pins cleaned and separated from DPC contacts, remove the defectivetransformer/power relays making sure all terminal pins are inserted completely. Resolder all terminalcontacts carefully.9.4. Inverter power supply (U)CAUTIONS WHILE REPLACING INVERTER /POWER SUPPLY (U)1. Make sure to leave the grounding plate in itsplace.2. Make sure to securely tighten grounding screwfrom the bottom of chasis (base).3. Securely connect 3 lead wire connectors.4. Make sure the heat sink has enough space (gap)from the oven. Take special care not to touch anylead wire to the aluminum heat sink because it ishot.1. Remove 1 screw holding orifice on the cover plate.2. Remove 1 screw holding top front cover on the oven.3. Remove 1 screw holding Inverter grounding plate on the oven.4. Remove 3 screws holding Inverter bracket on top front cover.5. Slide 2 locking of Inverter bracket at the top front cover slightly.6. Disconnect 2 lead wires from fan motor A terminals.22