Sharp R1500 Service Manual

29
R-1500R-1501R-1505R-1506
1.Disconnect the power supply cord.
2.Open the door and block it open.
3.To discharge the high voltage capacitor, wait for 60
seconds.
4.Remove the one (1) screw holding the base cover to the
oven cavity back plate.
5.Remove the three (3) screws holding the base cover to
the oven cavity front face plate.
6.Open the base cover.
7.   Release the two hood lamp sockets from the base cover.
8.Remove the base cover from the oven cavity by pulling
down and moving to the left...

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13.Remove the two (2) screws holding the LCD holder to
the key fixing plate.
14.Remove two (2) screws holding the power unit to the key
fixing plate.
15.Release the two (2) tabs holding the power unit to the key
fixing plate.
16.Release the three (3) tabs holding the LCD to the LCD
holder.
17.Release the two (2) tabs holding the LSI unit to the LCD
holder.
18.Remove the LCD holder and the LED sheet.
19.Now, the control unit is free.
20.Remove the one (1) screw holding the...

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After adjustment, check the following.
1. In and out play of door remains less than 0.5mm when in
the latched position. First check upper position of latch
hook, pushing and pulling upper portion of door toward
the oven face. Then check lower portion of the latch
hook, pushing and pulling lower portion of the door
toward the oven face. Both results (play in the door)
should be less than 0.5mm.
2. The door sensing switch and primary interlock switch
interrupt the circuit...

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R-1500
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1. Disconnect the power supply cord.
2. Open the door and block it open.
3. To discharge the high voltage capacitor, wait for 60
seconds.
4. Remove the three (3) screws holding the hood exhaust
louver to the oven cavity front face plate.
5. Remove the hood exhaust louver from the oven cavity by
pushing the right and left tabs of the hood exhaust louver.
(Refer to the procedure of "HOOD EXHAUST LOUVER
REMOVAL".)
6. Remove door assembly, referring to "DOOR...

33
R-1500
R-1501
R-1505
R-1506
6
45
12
3
6
45
12
3 A
B
C
D
E
F
G
HA
B
C
D
E
F
G
H
Figure S-1. Pictorial Diagram
HIGH VOLTAGE
RECTIFIER HIGH VOLTAGE
CAPACITOR HIGH VOLTAGE
WIRE A
HIGH VOLTAGE COMPONENTS CONTROL UNIT
POWER 
TRANSFORMERPower Supply
cord 120V 60Hz
1 2 3
WHT
GRNBLK
WHT
BLU
GRNBLK
CAVITY
THERMAL
CUT-OUTMAGNETRON
TEMPERATURE 
FUSE
BLK
RED
BLK
FAN
MOTOR
WHT
PNK
or
BLU
WHT
ORG
PPL
BRN
WHT
Blue 
Marking 
Blue Marking OVEN LAMP & 
SOCKET
HOOD LAMP & 
SOCKET HOOD LAMP & 
SOCKET
CN-E
GRYWHTWHT...

34
R-1500
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6
45
12
3
6
45
12
3 A
B
C
D
E
F
G
HA
B
C
D
E
F
G
H
Figure S-2. Power Unit Circuit
N.O
C 1
C 7
C 3
C 5
C12
C 4
C 9
C 2
C 8
C 6
C13
C14
E 2E 1
C11
C10
N.O
COM
COM
B 7
B 9
B 5
B 3
B 1
A 5
A 3
A 1
+
–
+
–
T1
VRS1
(J1)
R30 3.3k10G471K
D21
1SS270A D22
1SS270A D23
1SS270A D24
1SS270A D25
1SS270A
D40
1SS270A D20
1SS270A
D26
1SS270A
C1 0.1µ/50v
C2 1000µ/35v
38
D3 D1
D2
R1 750 1w 
SP1
PKM22EPT  Q21
KRC243MC21
10µ/35v D1-D4
1N4002
C100
7µ/230v
R2 750 1w 
AC(N)
OVEN LAMP
TURNTABLE...

35
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Figure S-3. LSI Unit Circuit
6
45
12
3
6
45
12
3 A
B
C
D
E
F
G
HA
B
C
D
E
F
G
H
C 5C 1C 7C 2C 9C 8C 3C 6C 4C12C11C14
G11G12G 9
G 8
KEY UNITPOPCORN RICEREHEAT
CENTER
POULTRY
BONELESS
FROZEN
VEGETABLESFRESH
VEGETABLES
POWER
LEVELBAKED
POTATOESPOULTRY
BONE-INTIMER
CLOCK FROZEN
ENTREESHOT
WATERLIGHT
HI / LO
FAN
HI / LO
STEAKS /
CHOPS
12
453
86
9
0 7GROUND
MEAT
(DEFROST CENTER)
GROUND
MEAT
(COOK CENTER)
KEEP
WARM
G 7
G 6
G 5
G 4
G 3
G 2
G 1
G10
+
–
C10C13
C10 47µ/16v
C11...

36
R-1500
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6
45
12
3
6
45
12
3 A
B
C
D
E
F
G
HA
B
C
D
E
F
G
H
Figure S-4. Printed Wiring Board
0
F
CS
M
27A 94V 0MB
MR
35
0R
BFB
DIP
LOT  NO.
QKITPB035MRE0
RY1VRS1 R30
T1S8 5
13PC100
D26
D24
D23
D22 C21CN-ECN-C
D21D40
D20
2
1 R2
Q21Q1
BB
ZD1
EER1
R3
C2
D1
D3
D4
D2
D25
1
1 95 RY5
CN-BCN-AC1 C31
1214
SP1
J1RY2RY3RY4RY6 

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PARTS LIST
Note: The parts marked “∆” may cause undue microwave exposure.
The parts marked “*” are used in voltage more than 250V. 
§ MARK: PARTS DELIVERY SECTION
ELECTRIC PARTS
1- 1 FH-DZB016MRY0 M High voltage rectifier assembly  1 AH
1- 2 RC-QZA234WRE0 M High voltage capacitor  1 AP
1- 3 QFS-TA013WRE0 M Temperature fuse 150˚C (Magnetron)  1 AE
1- 4 RMOTDA211WRE0 M Turntable motor  1 AL
1- 5 RTHM-A070WRE0 M Thermal cut-out 145˚C (Cavity)  1 AF
1- 6 RTHM-0044MRE0 M Thermal...

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REF. NO. PART NO.§DESCRIPTION QTY CODE
∆
∆
∆∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
SP1 RALM-A014DRE0 J Buzzer (PKM22EPT) 1 AG
T1 RTRNPB017MRE0 M Transformer 1 BG
VRS1 RH-VZA032DRE0 J Varistor (10G471K) 1 AE
3- 2 FPNLCB372MRK0 M Control panel sub. assembly [R-1500] 1 AZ
3- 2 FPNLCB373MRK0 M Control panel sub, assembly [R-1501] 1 AZ
3- 2 FPNLCB372MRK0 M Control panel sub. assembly [R-1505] 1 AZ
3- 2 FPNLCB373MRK0 M Control panel sub, assembly [R-1506] 1 AZ
3- 2-1 FUNTKB320MRE0 M Key unit...