6-1
GENERAL PRECAUTIONS IN USE
A. Never operate the unit when it is empty.
Operating the oven with no load may shorten the
life of the magnetron. Whenever cooking dry foods
(dried fish, bread, etc.) or a small amount of food,
be sure to put a glass of water into the cooking
compartment. The glass turntable may become hot
after operating, be careful when touching it.
B. Aluminum foil should be avoided because it will
disrupt cooking and may cause arcing. However,
small pieces may be used to cover some parts of
food to slow the cooking. Any aluminum foil used
should never be closer than 2.5 cm to any side wall
of the oven.
TRIAL OPERATION
After installation, the following sequences and results
should be checked carefully.
A. Put a container filled with water (about 1 liter) into
the oven, and close the door tightly.
B. Set cooking time for 10 minutes by touching “1”
and then “0” three times. “1, 0, 0, 0” appears in
the display window.
C. Touch the START key.
Make sure the cavity light comes on. The unit will
begin cooking and the display window will show the
time counting down by seconds.
D. After about 5 minutes, make sure the primary
interlock switch, the secondary interlock switch and
the interlock monitor switch operate properly by
opening and closing the door several times. Touch
the START key each time the door is closed.
E. Continue operating the unit. Four long beep sound
signal is heard when the time is up. The unit will
shut off automatically.
F. Confirm the water is hot.
G. Finally, measure the output power according to
“POWER OUTPUT MEASUREMENT” on
page 7-3.
FEATURES AND SPECIFICATIONS
FEATURES
A. The safety systems incorporated in this model are:
(1) Primary interlock switch
(2) Secondary interlock switch
(3) Interlock monitor switch
(4) Choke system
(5) Magnetron thermal fuse
(6) Oven cavity thermostat
(Note: This thermostat located on the oven
cavity will open and stop the unit from operation
only if a high temperature is reached, such as,
a fire created by overcooking food.)
B. Any one of 10 power output levels ranging 100W to
1000W can be selected by the touch control and
electronic computer system.
GENERAL INFORMATION FOR SERVICE
Содержание NN-S251WL
Страница 9: ...5 1 SCHEMATIC DIAGRAM OVERALL CIRCUIT DIAGRAM ...
Страница 10: ...MATRIX CIRCUIT FOR TOUCH KEY BOARD 5 2 ...
Страница 36: ...8 1 SCHEMATIC DIAGRAM OF P C B ...
Страница 37: ...8 2 PRINTED CIRCUIT BOARD ...
Страница 38: ...3 2 1 EXPLODED VIEW DOOR PARTS MODEL NN S251 4 1 9 7 65 6 5 8 ...
Страница 39: ... 2 ESCUTCHEON BASE ASSEMBLY 12 10 13 14 11 67 60 66 ...
Страница 40: ... 3 OVEN CAVITY PARTS 26 64 63 65 66 18 16 21 23 24 25 66 66 19 17 15 20 64 22 22 27 ...
Страница 41: ... 4 DOOR HOOK PARTS 31 28 32 69 30 29 61 ...
Страница 42: ... 5 INTERIOR PARTS I 65 42 33 35 36 37 62 63 34 39 41 38 60 43 63 60 40 63 44 60 60 60 ...
Страница 43: ... 6 INTERIOR PARTS II 45 53 46 48 49 51 65 65 60 55 50 47 54 52 ...
Страница 44: ... 7 INSTALLATION PARTS VINYL BAG 57 56 59 58 ...