Panasonic NN-ST658W, NN-SD698S Low voltage transformer and/or power relays RY1, RY2, Fan motor

Models: NN-ST658W NN-ST678S NN-SD698S

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4.3.Low voltage transformer and/or power relays (RY1, RY2)

4.3.Low voltage transformer and/or power relays (RY1, RY2)

4.4.Fan motor CAUTION:

Be sure to ground any static electric charge built up in your body before handling the DPC.

1.Replace D.P.C. board.

(A)Using solder wick or a desoldering tool and 30W soldering iron carefully remove all solder from the terminal pins of the low voltage transformer and/or power relays.

4.5.Door assembly CAUTION:

Do not use a soldering iron or desoldering tool of more than 30 watts on D.P.C. contacts.

(B)With all the terminal pins cleaned and separated from D.P.C. contacts, remove the defective transformer/power relays, Replace components making sure all terminal pins are inserted completely resolder all terminal contacts carefully.

4.4.Fan motor

1.Disconnect 2 lead wires from fan motor terminals.

2.Remove 2 screws at location on oven attaching orifice assembly.

3.Remove orifice assembly from oven assembly.

4.Remove fan blade from the fan motor shaft by pulling it straight out.

5.Remove 2 screws holding fan motor to orifice.

NN-SD698S / NN-ST678S / NN-ST658W

4.5.Door assembly

1.Remove door C from door E by carefully pulling outward, starting from upper right hand corner using a flat blade screwdriver.

2.Separate door E from tabs on door A and remove door A.

3.Open Door E at the opening angle of approximately

10°(Note: The door cannot be removed if the opening angle is greater than 10°).

4.Remove the door E from its hinges by pushing the door E upward and out.

5.Remove door screen B from door A.

6.Remove door key and door key spring.

7.Replace other components.

To re-install components:

1.Place the door’s lower hinge pin into the bottom hinge hole.

2.Use your left index finger to support the door’s lower hinge pin while guiding the door’s upper hinge pin into the top hinge hole.

3.Lower your finger to seat the door onto the hinges.

NOTE:

Adjust so that the upper portion of the door will touch firmly to the oven cavity front plate, without pushing the door. If the door assembly is not mounted properly, microwave power may leak from the clearance between the door and oven.

NOTE:

Always perform the microwave leakage measurement test after installation and adjustment of door assembly.

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Panasonic NN-ST658W, NN-SD698S, NN-ST678S Low voltage transformer and/or power relays RY1, RY2, Fan motor, Door assembly