Test Procedures - Sharp R-763IN Service Manual

Grill and microwave oven
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TEST PROCEDURES

TEST PROCEDURE
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
PROBLEM
CONDITION
Fuse F2 15A blows when power
cord is plugged into wall outlet.
Fuse F8A blows when the door
is opened.
Oven lamp does not light when door
is opened. (Display appears.)
OFF
CONDITION
Home fuse blows when power
cord is plugged into wall outlet.
"88:88" does not appear in display
when power cord is plugged into
wall outlet.
Display does not operate properly
when STOP pad is touched.
Oven does not start when START
pad is touched. (Display appears.)
Oven lamp does not light.
(Turntable motor operates.)
Fan motor does not operate. (Oven
lamp light.)
Turntable motor assembly does not
operate. (Oven lamp light.)
COOKING
Oven or electrical parts do not stop
CONDITION
when cooking time is 0 or STOP
(COMMON)
pad is touched.
Oven goes into cook cycle but
shuts down before end of cooking
cycle.
Oven stops as soon as the START
pad is touched. (Except for Grill
Cooking)
Oven seems to be operating but
little or no heat is produced in oven
load. (Microwave power level is set
at "HIGH")
Oven does not operate properly
MICROWAVE
COOKING
during the variable cooking condition
CONDITION
except "HIGH" cooking condition.
(Oven operates properly at HIGH)
Oven goes into cook cycle but shuts
down before end of cooking cycle.
GRILL
Grill Heating element does not
COOKING
operate.
CONDITION
Oven seems to be operating but
little or no heat is produced in oven
load. (Microwave power does not
DUAL
seem to be generated properly)
COOKING
CONDITION
Grill Heating element does not
operate.
A B C D E E E F F G H I K K L
T
M
M
P
H
H
M
S
T
H
O
A
O
.
.
O
T
H
N
E
G
W
V
V
N
O
E
R
I
N
E
.
P
R
.
I
M
T
E
R
M
C
T
A
O
T
R
S
A
A
O
L
R
R
T
E
W
L
P
R
O
R
C
I
A
E
S
C
N
A
T
T
C
C
D
W
U
N
I
I
C
U
I
T
S
F
T
L
H
T
T
|
F
I
O
A
|
O
C
O
E
O
R
T
H
U
R
R
U
C
T
M
T
H
E
A
1
R
S
S
1
6
W
S
2
0
I
E
5
C
T
M
C
C
B
H
L
Y
R-763 -
10
F
F
N
F
T
G
P
O
S
O
U
U
O
A
U
R
O
V
H
P
S
S
I
N
R
I
W
E
O
E
E
E
S
N
L
E
N
R
N
E
M
T
L
R
T
E
1
F
O
A
L
E
D
5
F
T
B
H
S
A
D
8
A
I
O
L
E
U
M
W
A
L
R
E
A
P
P
W
I
F
T
T
P
I
R
F
2
E
M
I
L
R
E
1
R
O
N
Y
E
T
G
H
O
C
H
A
R
E
O
A
R
L
R
R
N
E
D
N
E
M
E
S
E
S
S
N
S
T
S
M P P P Q
M
C
R
R
R
F
F
I
O
E
E
E
O
U
S
N
L
L
L
I
S
A
T
A
A
A
L
E
D
R
Y
Y
Y
J
O
P
8
U
L
R
R
R
A
A
S
Y
Y
Y
T
F
T
P
|
|
|
T
1
M
A
1
3
2
E
E
N
R
N
E
N
T
L
O
S
N
W
I
P
T
.
C
W
H
.
E
B
S
.

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