Sharp R-872M (serv.man5) Service Manual ▷ View online
R-872M - 37
Figure S-3. CPU Unit Circuit
+
–
CN1-3
CN1-10
CN1-5
CN1-6
CN1-9
CN1-11
CN1-8
CN1-7
CN1-15
CN1-13
CN1-12
CN1-1
CN1-14
CN1-2
CN1-4
G 8
G
7
G
6
G
5
G
4
G
3
G
2
G
1
G12G
11G10
G 9
D5
D6
LD1
LD2
LD3
LD4
LD5
LD6
LD7
LD8
LD9
LD10
R4 22
R6 620
: IF NOT SPECIFIED, 1/10W
±
5%
: IF NOT SPECIFIED, 1SS355
: IF NOT SPECIFIED, 0.01
µ
F / 50V
R5 4.7k
R15 4.7k
C10 47
µ
/16v
C11 0.1
µ
/50v
C14
C12
0.1
µ
/50v
C21
0.1
µ
/50v
C13
0.1
µ
/50v
R10 1k
R12
15k
R13
15k
R14
15k
ZD10
UDZ4.3B
R11 4.7k
Q2
2SA1037AK
Q11
DTA143EKA
Q25
DTA143EKA
Q24
DTA143EKA
Q23
DTA143EKA
Q22
DTA123JKA
GND
VR
VC
INT
BUZZER
POWER
LIQUID CRYSTAL DISPLAY
FAN
CONVECTION
FAN
BOTTOM
HEATING
ELEMENT
STOP SWITCH
OVEN LAMP
TURNTABLE
MOTOR
HIGH
VOLTAGE
TRANSFORMER
OVEN
THERMISTOR
NC
GRILL
HEATING
ELEMENT
Q21
DTA123JKA
Q20
DTA123JKA
R30 4.7k
R81 510F
R82 28kF
R73 100k
R72 100k
R74 100k
R75 100k
C60
330p/50v
C61
330p/50v
C62
330p/50v
C63
330p/50v
R83 15k
C80
C30
R31 15k
D22
D23
D30
Q28
DTA143EKA
Q40
DTA143EKA
A
(J14) 4.7k
(J15) 4.7k
(J12) 4.7k
(J13) 4.7k
(J10)
(J11)
R68 15k
R55 4.7k
IC-1
IZA965DR
(J17)
(J16) 4.7k
R60 15k
R61 15k
R62 15k
R63 15k
R64 15k
R65 15k
R66 15k
R67 15k
R56
1M
A
CF1 4MHz
R69 15k
R70 15k
R71 15k
Q10
2SA1037AK
SEG10
C 1
VL1
AN7
AN6
AN5
5
10
15
20
25
55
60
65
70
75
51
1
80
30
AN4
AN3
AN2
AN1
AN0
P57
P56
P55
P54
P53
P52
P51
P50
P47
P46
P45
P44
INT0
P41
P40
P77
P76
P75
P72
P71
P70
RESET
35
45
85
90
95
50
P81
P80
XIN
XOUT
VSS
P27
P26
P25
P24
P23
P22
P21
P20
P17
P16
P73
C 2
VL2
VL3
COM0
COM1
COM2
COM3
AVSS
VREF
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
N C
N C
N C
N C
N C
N C
N C
COM3
COM2
COM1
N C
N C
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
VCC
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
P74
INT1
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
SEG35
SEG36
SEG37
SEG38
SEG39
nfo
LBS
KG
OZ
PCS
%
˚C
COOK
SENSOR
DEFROST
AUTO
MINCED MEAT
BREAKFAST
FRESH VEG.
RICE/PASTA
BAKED POTATOES
PIZZA
MIXED GRILL
CAKE
OVEN CHIPS
FRESH FISH
CHICKEN PTNS
AUTO
DEFROST
STOP/
CLEAR
MICROWAVE
POWER LEVEL
DUAL
CONVECTION/
GRILL
AUTO
COOK
CONVECTION
( ˚
C )
START
AUTO MINUTE
LESS
Kg / Lb
Kg
• Lb
TIMER
g
• oz
GRILL
10 sec.
1 min.
10 min.
MORE
AUTO START
CLOCK
CPU UNIT CIRCUIT
R-872M - 38
Figure S-4. Printed Wiring Board of Power Unit
SHARP
FA619DR
DIP
1
4
1
5
1
1
17
9
1
R4
RY9
RY2
RY1
RY3
RY4
(J1)
(J2)
DAMP
E
B
Q1
R3
R2
R6
D1
8
MICRO
ROTI
OL:TTM
CF
FM
TH
CH:BH
POWER CONT
F
QKITPA026URE0
B
E
Q2
ZD2
3
CN - B
CN - C
CN - E
CN - A
CN - D
1
4
15
WH1
WH2
C5
Q3
D2
D9
D3
B
E
SP1
2
4
5
5
7
6
C3
C4
C2
C1
D10
R1
ZD1
VRS1
3
1
R5
D7
D4
D5
D6
D8
RY8
RY5
RY7
RY6
PRINTED WIRING BOARD OF POWER UNIT
R-872M - 39
Note: The parts marked "
∆
" may cause undue microwave exposure. / The parts marked "*" are used in
voltage more than 250V. / "§" Mark: Spare parts delivery section
REF. NO.
PART NO.
§
DESCRIPTION
Q'TY CODE
PARTS LIST
*
*
*
∆
*
ELECTRIC PARTS
1- 1
FH-HZA075WRE0
U
Thermistor
1
AN
1- 2
RTRN-A529WRE0
U
TC transformer
1
AV
1- 3
QACCBA004URE1
U
Power supply cord
1
AT
1- 4
FH-DZA035WRE0
U
High voltage rectifier assembly
1
AP
1- 5
FPWBFA309WRE2
U
Noise filter
1
AT
1- 6
QFS-CA025WRE0
U
Fuse F8A
1
AC
1- 7
QFS-B0019MRE0
U
Fuse 15A
1
AC
1- 8
RMOTEA373WRE0
U
Convection motor
1
AV
1- 9
RC-QZA239WRE0
U
High voltage capacitor
1
AR
1-10
RTHM-A098WRE0
U
Thermal cut-out 125˚C off(MG)
1
AH
1-11
RTHM-A099WRE0
U
Thermal cut-out 150˚C off 130˚C on (OVEN)
1
AH
1-12
RHET-A225WRE0
U
Top grill heating element
1
AR
1-13
RHET-A227WRE0
U
Bottom grill heating element
1
AW
1-14
QSW-MA133WRE0
U
Monitored latch switch
1
AN
1-15
QSW-MA131WRE0
U
Stop switch
1
AK
1-16
QSW-MA133WRE0
U
Monitor switch
1
AN
1-17
RMOTEA361WRE0
U
Fan motor
1
AT
1-18
RLMPTA066WRE0
U
Oven lamp
1
AK
1-19
RTRN-A012URE0
U
High voltage transformer
1
BH
1-20
RV-MZA243WRE1
U
Magnetron
1
BH
1-21
RMOTDA227WRE0
U
Turntable motor
1
AU
CABINET PARTS
2- 1
GCABDA001URP1
U
Back plate
1
AQ
2- 2
GCABDA002URP0
U
Sub back plate
1
AH
2- 3
GCABUA469WRT0
U
Outer case cabinet [R-872(W)M
1
AX
2- 3
GCABUA024URP0
U
Outer case cabinet [R-872(SL)M
1
AX
2- 4
GDAI-A002URP0
U
Base plate
1
AR
2- 5
GLEGPA028WRE0
U
Foot
2
AA
CONTROL PANEL PARTS
3- 1
DPWBFA093URU0
U
Power unit
1
BC
3- 1A
QCNCMA453DRE0
U
5-pin connector (CN-A)
1
AC
3- 1B
QCNCMA414DRE0
U
2-pin connector (CN-B)
1
AB
3- 1C
QCNCMA410DRE0
U
2-pin connector (CN-C)
1
AB
3- 1D
QCNCMA230DRE0
U
4-pin connector (CN-E)
1
AC
3- 1E
QW-QZA008URE0
U
15pin wire harness (WH-1)
1
AG
C1
RC-KZA087DRE0
U
Capacitor 0.1 uF 50V
1
AB
C2
VCEAG31VW108M
U
Capacitor 1000 uF 35V
1
AE
C3
RC-KZA087DRE0
U
Capacitor 0.1 uF 50V
1
AB
C4-5
VCEAG31VW106M
U
Capacitor 10 uF 35V
2
AB
D1-7
VHD1SS270A/-1
U
Diode (1SS270A)
7
AA
D10
RSRCDA013DRE0
U
Diode bridge (S1NB10)
1
AE
Q2
VS2SB1238//-3
U
Transistor (2SB1238)
1
AD
Q3
VSKRC243M//-3
U
Transistor (KRC243M)
1
AB
R2
VRD-B12EF152J
U
Resistor 1.5K ohm 1/4W
1
AA
R3-4
VRS-B13AA511J
U
Resistor 510 ohm 1W
2
AB
R5
VRD-B12EF332J
U
Resistor 3.3K ohm 1/4W
1
AA
R6
VRS-B13AA131J
U
Resistor 130 ohm 1W
1
AB
RY1
RRLY-A093DRE0
U
Relay (VRB18)
1
AM
RY2
RRLY-A092DRE0
U
Relay (VRB18-SH4)
1
AP
RY3-4
RRLY-A076DRE0
U
Relay (OMIF-S-124LM)
2
AK
RY5-7
RRLY-A080DRE0
U
Relay (OJ-SH-124LM)
3
AG
SP1
RALM-A014DRE0
U
Buzzer (PKM22EPT)
1
AG
VRS1
RH-VZA034DRE0
U
Varistor (10G471K)
1
AD
ZD2
VHEHZ201///-1
U
Zener diode (HZ20-1)
1
AB
3- 2
DPWBFB949WRK0
U
CPU unit
1
BE
3- 3-1
FUNTKC082URE0
U
Key unit [R-872(W)M]
1
AS
3- 3-1
FUNTKC083URE0
U
Key unit [R-872(SL)M]
1
AS
3- 3
HPNLCA030URF0
U
Control panel frame [R-872(W)M]
1
AN
3- 3
HPNLCS004URR0
U
Control panel frame [R-872(SL)M]
1
AN
3- 3-2
JBTN-A017URF0
U
Open button [R-872(W)M]
1
AE
3- 3-2
JBTN-R005URF0
U
Open button [R-872(SL)M]
1
AE
3- 3-3
MSPRCA045WRE0
U
Open button spring
1
AA
3- 4
LHLD-A007URF0
U
LED holder
1
AC
3- 5
PSHEPA647WRE0
U
LED sheet
1
AL
3- 6
XEPSD30P10XS0
U
Screw : 3mm x 10mm
6
AA
R-872M - 40
*
*
*
∆
∆
∆
∆
Note: The parts marked "
∆
" may cause undue microwave exposure. / The parts marked "*" are used in
voltage more than 250V. / "§" Mark: Spare parts delivery section
REF. NO.
PART NO.
§
DESCRIPTION
Q'TY CODE
∆
PARTS LIST
OVEN PARTS
4- 1
DOVN-A017URK0
U
Oven cavity
1
BG
4- 2
LBNDKA107WRP1
U
Capacitor holder
1
AD
4- 3
FDUC-A003URY0
U
Air duct
1
AL
4- 5
PDUC-A636WRP0
U
Air guide duct
1
AN
4- 6
PFILWA001URP0
U
Lamp filter
1
AB
4- 7
PHOK-A078WRF5
U
Latch hook
1
AH
4- 8
LANGQA014URP0
U
Turntable motor angle
1
AE
4- 9
PCUSUA019URE0
U
Cushion
1
AA
4-10
FANGTA003URY0
U
Turntable motor shaft assembly
1
AK
4-11
PPACGA108WRE0
U
O-ring gasket
1
AC
4-12
NFANJA001URE0
U
Fan blade
1
AF
4-13
PDUC-A637WRF2
U
Fan duct
1
AL
4-14
NFANMA002URP0
U
Cooling fan
1
AF
4-15
GCOVHA001URP0
U
Bottom heater cover
1
AL
4-16
LANGFA155WRP7
U
Chassis support
1
AF
4-17
PPACGA001URE0
U
Heater packing
1
AD
4-18
LANGQA008URP0
U
Grill heater angle
2
AD
4-19
MLEVPA001URF3
U
Open lever
1
AE
4-20
PSPAGA001WRE0
U
Vibration proof cushion
1
AA
4-21
PCUSUA006URE0
U
Air cushion B
1
AA
4-22
PCOVQA002URP0
U
Heater cover
2
AD
4-23
PCOVPA308WRE1
U
Waveguide cover
1
AE
4-24
PCUSGA372WRP0
U
HVT Cushion
1
AB
4-25
PCUSGA317WRP0
U
Absorb cushion A
1
AA
4-26
PCUSUA459WRP0
U
Duct Cushion
1
AC
4-27
PDUC-A633WRF1
U
Air intake duct
1
AK
4-28
PDUC-A008URP0
U
Exhaust duct
1
AK
4-29
PSKR-A308WRF0
U
Rear barrier
1
AH
4-31
PCUSUA012URE0
U
Air defrect cushion
1
AB
4-32
LANGQA004URP0
U
Convection air angle
2
AN
4-33
PDUC-A003URP0
U
Convection duct
1
AL
4-34
PFPF-A001URE0
U
Heat intercept
1
AG
4-35
PCOVQA001URP0
U
Rear heat cover
1
AP
4-36
PPIP-A001UR10
U
Pipe
1
AE
4-37
PCUSUA018URE0
U
Back plate cushion
1
AA
4-38
NFANMA001URP0
U
Convection fan
1
AD
DOOR PARTS
5- 1
DDORFA766WRK0
U
Door panel assembly
1
BE
5- 2
GWAKPW028URR0
U
Door frame [R-872(W)M]
1
AT
5- 2
GWAKPS011URR0
U
Door frame [R-872(SL)M]
1
AT
5- 3
LSTPPA147WRF1
U
Latch head
1
AE
5- 4
LSTPPA003URF0
U
Glass stopper
1
AB
5- 5
MSPRTA141WRE0
U
Latch spring
1
AA
5- 6
PGLSPA020URR0
U
Front door glass
1
AX
5- 7
XEPSD30P06000
U
Screw : 3mm x 6mm
6
AA
5- 8
GCOVHA365WRF2
U
Choke cover
1
AM
MISCELLANEOUS
6- 1
FAMI-A072WRK2
U
High rack
1
AY
6- 2
FAMI-A095WRK1
U
Low rack
1
AR
6- 3
LHLDKA008WRF0
U
P-clip
1
AA
6- 4
CTNT-A002URK0
U
Turntable tray
1
AY
6- 5
FW-VZA031URE0
U
Stop switch harness
1
AE
6- 6
QW-QZA014URE0
U
High voltage wire A
1
AB
6- 7
QW-QZA210WRE1
U
High voltage wire B
1
AD
6- 8
FW-VZA071URE0
U
Main harness
1
AY
6- 9
TINS-A173URR0
U
Quick start guide
1
AM
6-10
TINS-A174URR0
U
Operation manual
1
AS
6-11
TCAUHA001WRR1
U
Caution label
1
AC
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