Sharp R872M-005 Schematic
SERVICE MANUAL
10sec.
10min.
1min.
Instant Cook
DEFROST
Kg Lb
LESS
GRILL
TIMER
Kg/Lb
DUAL
CONVECTION
GRILL
MORE
CONVECTION
C)
MICROWAVE
POWER LEVEL
STOP/
CLEAR
AUTOSTART
CLOCK
START
AUTO MINUTE
S08939R872M//
MICROWAVE OVEN WITH
GRILL AND CONVECTION
C
O
O
K
D
E
F
R
O
S
T
A
U
T
O
L
B
S
O
Z
%
n
fo
K
G
1
0m
in
.
1m
in.
10sec.
BREAKFAST
P
IZ
Z
A
Instant Cook
M
IX
E
D
G
R
I
L
L
CHICKEN PT
NS
M
IN
C
ED
ME
AT
F
R
E
S
H
F
IS
H
B
A
K
E
D
P
O
T
A
T
O
E
S
O
V
E
N
C
H
I
P
S
R
IC
E/P
AS
T
A
FR
E
S
H V
E
G.
C
A
K
E
AUTO
AUTO
COOK
DEFROST
1
C
h
ille
d
R
e
a
d
y
M
e
a
ls
1
M
e
a
t J
o
in
1
F
t
r
o
z
e
n
R
e
a
d
y
M
e
a
ls
2
P
o
u
ltr
y
3
R
o
a
s
t
B
e
e
f
/
3
Chicken Ptn, Steak, Chops
R
o
a
s
t L
a
m
b
4
M
in
c
e
d
M
4
e
R
a
o
t
a
s
t
P
o
r
k
5
B
r
e
a
d
5
R
o
a
s
t
P
o
u
ltry
nfo
Kg Lb
g oz
L
E
S
S
M
O
R
E
C
O
N
V
E
C
T
IO
N
D
U
A
L
G
(˚C)
R
IL
L
C
O
N
V
E
C
T
IO
N
G
R
IL
L
M
IC
R
O
W
A
V
E
S
T
O
P
/
S
TART
P
O
W
E
R
L
E
V
E
L
C
L
E
A
R
A
U
TO
M
INU
T
E
T
IM
E
R
AUTOSTART
K
g
/L
J
e
t
C
o
n
v
ec
t
i
o
n
&
D
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u
b
l
e
G
900W
r
i
l
l
b
CL
OC
K
MODELS
R-872(W)M
R-872(SL)M
In interests of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.
TABLE OF CONTENTS
Page
CAUTION, MICROWAVE RADIATION.................................................................................................... 1
WARNING.................................................................................................................................................1
SERVICING ............................................................................................................................................. 2
PRODUCT SPECIFICATIONS ................................................................................................................. 3
GENERAL INFORMATION.......................................................................................................................3
APPEARANCE VIEW .............................................................................................................................. 4
OPERATION SEQUENCE........................................................................................................................5
FUNCTION OF IMPORTANT COMPONENTS ....................................................................................... 8
TROUBLESHOOTING GUIDE ............................................................................................................... 10
TEST PROCEDURES ........................................................................................................................... 11
TOUCH CONTROL PANEL ASSEMBLY .............................................................................................. 17
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE .................................................. 23
MICROWAVE MEASUREMENT ........................................................................................................... 29
SCHEMATIC DIAGRAM ........................................................................................................................ 30
PICTORIAL DIAGRAM .......................................................................................................................... 35
POWER UNIT CIRCUIT ......................................................................................................................... 36
CPU UNIT CIRCUIT ............................................................................................................................... 37
PRINTED WIRING BOARD ....................................................................................................................38
PARTS LIST .......................................................................................................................................... 39
SHARP CORPORATION
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