Panasonic NN-DF383BZPE Service Manual ▷ View online
5. Remove 4 screws holding the magnetron.
NOTE:
After replacement of the magnetron, tighten mounting
screws properly in an x pattern, making sure there is no
gap between the waveguide and the magnetron to
prevent microwave leakage.
screws properly in an x pattern, making sure there is no
gap between the waveguide and the magnetron to
prevent microwave leakage.
CAUTION
When replacing the magnetron, be sure the antenna gasket is in
place.
place.
4.3. Digital programmer circuit
(D.P.C) & Membrane Sheet
NOTE:
Be sure to ground any static electric charge built up on
your body before handling the D.P.C.
your body before handling the D.P.C.
1. Remove 1 screw holding escutcheon base on oven cavity
front plate.
2. Disconnect all connectors from D.P.C. board.
3. Disconnect connector CN701 from H.V. Inverter board.
4. Remove 1 screw holding D.P.C. board DU (relay board) on
4. Remove 1 screw holding D.P.C. board DU (relay board) on
back plate.
5. Remove 3 screws holding back plate.
6. Remove 12 screws holding D.P.C. board AU (display
6. Remove 12 screws holding D.P.C. board AU (display
board) on escutcheon base.
7. Remove dial by pulling it straight out.
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NN-DF383B
To replace membrane sheet
8. Use tools such as kinfe etc. to lift the edge of membrane
sheet and peel off membrane sheet completely from
escutcheon base.
escutcheon base.
NOTE:
1. The membrane sheet is attached to the escutcheon
base with double faced adhesive tape. Therefore,
applying hot air such as using a hair dryer is
recommended for smoother removal.
applying hot air such as using a hair dryer is
recommended for smoother removal.
2. When installing the new membrane sheet, make
sure that the surface of escutcheon base is clean to
prevent a malfunction or shorted contacts.
prevent a malfunction or shorted contacts.
To remove dial
Insert the ruler (wrapped with a glove) as a lever to release
the dial.
the dial.
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NN-DF383B
4.4. Low voltage transformer
and/or power relays
CAUTION:
Be sure to ground any static electric charge built up in
your body before handling the DPC.
your body before handling the DPC.
1. 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.
NOTE:
low voltage transformer and/or power relays.
NOTE:
Do not use a soldering iron or desoldering tool of
more than 30 watts on D.P.C. contacts.
more than 30 watts on D.P.C. contacts.
2. 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.
relays, Replace components making sure all terminal pins
are inserted completely resolder all terminal contacts
carefully.
4.5. Fan motor
1. Disconnect 2 lead wires from fan motor terminals.
2. Remove 2 screws holding fan motor and detach fan motor
2. Remove 2 screws holding fan motor and detach fan motor
from oven assy.
3. Remove fan blade from fan motor shaft by pulling it straight
out.
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NN-DF383B
4.6. Upper Heater (Heater BU)
1. Disconnect lead wires from right side of upper heater.
2. Remove 2 screws holding air guide B on oven cavity left
side.
3. Remove 2 screws holding metal bar on upper heaters from
the cavity left side. Then bend back locking tabs which
holding heater to the right angle.
holding heater to the right angle.
4. Remove the heater by pulling it out from the cavity left side.
4.7. Door assembly
1. Remove left and right door key springs from door arm with
plier.
NOTE:
NOTE:
Support door before removing door springs.
To remove door C and door A
2. From the position of right hinge (U).
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NN-DF383B
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