Sanyo EM-SL20NECO - TROUBLESHOOTING

B. TROUBLESHOOTING
STEP
SEQUENCE
RESULT
(1) PROBLEM
No display or mis-display in the display window by touching the keys.
a
Check 230V AC power supply of connector S1 between Pin3 and Pin 5 after removing connector S1 from control circuit board.
Check continuity of FUSE, Thermal Protector for cavity, Thermal Protector for magnetron and AC Power Cord. If the fuse has blown see "D. REMOVING FUSE" on page 13
0 230
0 Volt
0 230
230 Volt
PROBLEM
1-b
Control Circuit Board
Check power supply voltage on control circuit board. (See page 7 )
Voltage
incorrect
Replace it if necessary
0 V 0
V
Each Voltage
OK
Normal control circuit board
Replace control circuit board.
b
Runs
Runs
Correct seating of connector S101 or replace control circuit board.
Normal control circuit board
Runs
1
0
0
1
5
0
4
5
0
7
0
0
8
5
0
A
u
t
o
S
t
a
r
t
D
e
f
.
T
i
m
e
1
0
0
0
-9-
E
M
-S350
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