5-11
COMPONENTS
TEST PROCEDURE
RESULTS
Disconnect the 8 pin
connector from P.C.B.
(Refer to schemetic diagram)
RELAY 3, RELAY 4
OF P.C.B.
(Wire leads removed.)
Note: Relay
Relay 1: Turntable motor
Oven lamp
Relay 2: Fan motor
Relay 3: Microwave
Relay 4: Toast
FAN MOTOR
(Wire leads removed)
TURNTABLE
MOTOR
(Wire leads removed)
Check for P.C.B. connector.
Measure the resistance.
(Ohm-meter scale: R x 1)
Measure the resistance.
(Ohm-meter scale: R x 1000)
Normal: Approx. 200 ~400 ohm
Abnormal: Infinite or several
ohm.
Normal: Approx. 10~20 kohm
Abnormal: Infinite or several
ohm.
NOTE : • A MICROWAVE LEAKAGE TEST MUST ALWAYS BE PERFORMED WHEN THE UNIT IS
SERVICED FOR ANY REASON.
• MAKE SURE THE WIRE LEADS ARE IN THE CORRECT POSITION.
• WHEN REMOVING THE WIRE LEADS FROM THE PARTS, BE SURE TO GRASP THE
CONNECTOR, NOT THE WIRES.
A
B
Cooking Start OFF
1
3
5
Relay 3
Relay 1
Relay 4
Cooking Start OFF
A Approx. 30 ~ 50 ohm
B Approx. 300 ~ 500 ohm
Summary of Contents for MS-269T
Page 9: ...SCHEMATIC DIAGRAM 4 3 ...
Page 29: ...6 2 13720D 13213A 14026A 13552A 15006A 13536A 14970A 13581A WTT028 13650A DOOR PARTS ...
Page 30: ...6 3 383EW1 CONTROL PANEL PARTS ...
Page 31: ...6 4 33052A 33112U WTT010 948503 WTT021 WTP013 36549S 33390G 34370T 35889A OVEN CAVITY PARTS ...
Page 32: ...6 5 WSZ085 56912B 55262A 44510A 466001 43500A 43501A 466003 466001 LATCH BOARD PARTS ...
Page 34: ...6 7 WTT021 63302A 63303A 56170D WSZ002 WTT028 WSZ002 647781 65006A BASE PLATE PARTS ...
Page 40: ...8 1 SCHEMATIC DIAGRAM OF P C B ...
Page 41: ...8 2 PRINTED CIRCUIT BOARD KEY P C B MAIN P C B ...
