5-11
COMPONENTS
TEST PROCEDURE
RESULTS
Disconnect the 8 pin
connector from P.C.B.
(Refer to schemetic diagram)
RELAY 2, RELAY 3
OF P.C.B.
(Wire leads removed.)
Note: Relay
Relay 1: Fan motor
Turntable motor
Oven lamp
Relay 2: Microwave
Relay 3: Grill
FAN MOTOR
(Wire leads removed)
TURNTABLE
MOTOR
(Wire leads removed)
Check for P.C.B.connector.
Cooking Start
OFF
Cooking Start
OFF
Normal:
Abnormal:
∞
or several
Ω
Normal: Approx.100~200
Abnormal:
∞
or several
Ω
Measure the resistance.
(Ohm-meter scale: R x 1000)
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.
1
3
5
Relay 2
Relay 1
Relay 3
A
B
C
Measure the resistance.
(Ohm-meter scale: R x 1)
A ~ B
A ~ C
40 ~ 60
300 ~ 500
Summary of Contents for NN-J125MB EPG
Page 9: ...SCHEMATIC DIAGRAM 4 3 1 3 5 7 8 ...
Page 29: ...6 2 DOOR PARTS 13552A 13213A 13581A 13720D 14970A 14026A 13536A 14890A EV ...
Page 32: ...6 5 LATCH BOARD PARTS 56912B 948501 466001 466003 WSZ085 466001 43500A EV ...
Page 42: ...8 1 SCHEMATIC DIAGRAM OF P C B ...
Page 43: ...8 2 PRINTED CIRCUIT BOARD ...
