5-12
TROUBLE SHOOTING
WHEN YOU GET A COMPLAINT FROM YOUR CUSTOMER, EVALUATE THE COMPLAINT CAREFULLY. IF
THE FOLLOWING SYMPTOMS APPLY, PLEASE INSTRUCT THE CUSTOMER IN THE PROPER USE OF THE
MICROWAVE OVEN. THIS CAN ELIMINATE AN UNNECESSARY SERVICE CALL.
CAUTIONS
1. Check grounding before checking for trouble.
2. Be careful of the high voltage circuit.
3. Discharge the high voltage capacitor. (See page 2-1)
4. When checking the continuity of the switches or of the high voltage transformer, disconnect one lead wire
from these parts and then check continuity with the AC plug removed. To do otherwise may result in a
false reading or damage to your meter.
5. Do not touch any part of the circuitry on the digital programmer circuit since static electric discharge may
damage this control panel.
Always touch yourself ground while working on this panel to discharge any static charge built up in your
body.
CONDITION
Microwave oven
does not work.
Inserting many plug into one
plug outlet and using
them at the same time
(causes overloading).
Microwave oven plug is not
inserted tightly.
Output power is too low.
Low AC input voltage.
Food temperature is too low.
Using metallic ware and
allowing it to touch the oven
wall.
Sparks occurring.
Inconsistent intensity of
microwave by their
characteristics.
1. Wrap the thinner part with
aluminum foil.
2. Use plastic wrap or lid.
3. Stir once or twice while cooking
soup, cocoa or milk, etc.
Uneven cooking.
Ceramic ware trimmed in
gold or silver powder is used.
Avoid using other electrical
appliances when you use the
microwave oven.
Insert microwave oven plug
securely.
Use the microwave oven at
adequate line voltage.
This may not be a defect.
It is possible that the food
should be cooked for a
longer time period.
Do not use metallic ware for
cooking except where noted
in the cooking guide.
Do not use any type of
cookware with metallic
trimming.
CAUSE
REMEDY
Excessive weight on tray or
improperly balanced.
Distribute food evenly. Cook
smaller portions and,or use
lighter weight cookware.
Turntable drags or makes
noise.
Summary of Contents for MS-197W
Page 9: ...SCHEMATIC DIAGRAM 4 3 6 ...
Page 29: ...6 2 13581A 14970A 14026A 13552A 13213A 14890A 13720D 13536A DOOR PARTS EV ...
Page 31: ...6 4 OVEN CAVITY PARTS 33112U WTT021 WTT010 33390G 35889A WTP013 36549S 33052A EV ...
Page 32: ...6 5 43500A 466001 WSZ085 466003 466001 44510A LATCH BOARD PARTS EV ...
Page 34: ...6 7 BASE PLATE PARTS 56170D 63303A WSZ002 WTT021 65006B 63302A EV ...
Page 35: ...8 1 SCHEMATIC DIAGRAM OF P C B ...
Page 36: ...8 2 PRINTED CIRCUIT BOARD ...
Page 37: ......
