DOWNLOAD Sharp R-242M Service Manual ↓ Size: 668.72 KB | Pages: 28 in PDF or view online for FREE

Model
R-242M
Pages
28
Size
668.72 KB
Type
PDF
Document
Service Manual
Brand
Device
Home Appliance / Microwave Oven
File
r-242m.pdf
Date
PREV: Sharp R-23AM (serv.man23) Service Manual / Technical Bulletin

Sharp R-242M Service Manual ▷ View online

R-242M -
1
7
Figure S-1. Pictorial Diagram
WIRING DIAGRAM
NOTE: Most of the terminals are Positive Lock (No-Case type)
.
HIGH VOLTAGE COMPONENTS
SW1: MONITORED 
LATCH SWITCH
SW2: MONITOR 
SWITCH
TTM: TURNTABLE
MOTOR
COM.
COM.
ORG
N
L
RED
WHT
ORG
N.C.
SW3: STOP SWITCH
WHT
WHT
WHT
ORG
ORG
ORG
WHT
ORG
RED
G/Y
CONTROL UNIT
WHT
WHT
ORG
BLU
BRN
RED
RED
TC: THERMAL CUT-OUT
(OVEN)
OL: OVEN 
LAMP
SP30
IC1
CN-A
RY1
CN-B
RY2
1
1
2
5
RED
ORG
WHT
CN-A
CN-B
2
RED
ORG
1
3
4
5
WHT
RED
WHT
WHT
RED
ORG
WHT
2
1
N.O.
COM.
N.O.
FM:
FAN MOTOR
NOISE FILTER
WHT
H.V.WIRE B
MG: MAGNETRON
H.V.WIRE A
C: 
H.V. 
CAPACITOR
H.V.
RECTIFIER
T: HIGH VOLTAGE
    TRANSFORMER
POWER SUPPLY CORD
LIVE
NEUTRAL
WHT
18
R-242M -
Figure S-2. Control Panel Circuit
WIRING DIAGRAM
+
–
+
–
+
–
+
–
+
–
+
–
+
–
D1:1N4005E
VRS1
A1
COM
NO
B1
B2
A5
DOOR SWITCH
OVEN LAMP
TURNTABLE
MOTOR
FAN MOTOR
HIGH
VOLTAGE
TRANSFORMER
AC(N)
FAN 
MOTOR
AC230-240V
50Hz
AC(L)
D80
D3 1N4005E
D70 1N4005E
Q20
KRA
101M
Q21
KRC105M
Q70
KRC105M
Q30
Q40
VC
KRC101M
2SA
1267Y
RY1
10G471K
RY2
D71
1N4005E
D74
C43
R65   100k
C44
C80
C42
C21
C10
D10
R10 27k
R11 27k
R12 10k
SP30
3.3k
ZD40
HZ4C3
1k
2w
1k
2w
1k
2w
1k
2w
1k
2w
R5
R30
15k
R20 8.2k
R81 4.7k
   R72 8.2k
R80 15k
(J3)
(J2)
(J4)
(J6)
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
SEG0
VSS
R70
S1
S2
S3
S4
S5
S12
S11
S10
S9
S8
S7
S6
C3
C2
C1
22
25
30
35
40
42
21
1
5
10
15
R71
R72
R73
R81
R83
R90
R92
XIN
XOUT
RESET
HOLD
VLC
COM1
COM2
COM3
COM4
VDD
R91
INT2
INT1
AIN3
AIN2
AIN1
AIN0
R63
R62
R61
R60
(J5)
(J7)
R31 15k
R64 100k
R42
10kF
*
R50
1k
R41
1.5k 1/2w
R40
ZD21
ZD20
ZD1 HZ12C1
HZ12C1
HZ12C1
C70 47
µ
/35v
C20 220
µ
/35v
C1 220
µ
/16v
C71 100
µ
/35v
(C61) 330p/50v
C22 0.1
µ
/50v
IC1  IZA787DR
Auto Cook /
Defrost
Power Level /
Weigft
Stop /
Clear
Start  /
Auto
Minute
NOTE :
IF NOT SPECIFIED, 1/4 
±
 5%
LIQUID CRYSTAL DISPLAY
SW1
SW5
10sec.
1min.
10min.
SW6
SW7
SW2
SW3
SW4
C40 0.1
µ
/50v
0.1
µ
/50v
C41 47
µ
/16v
C50 33p/50v
10
µ
/35v
R73 15k
R70 360 1w
R71 360 1w
ZD71 HZ7C2
ZD70 HZ7C2
D72
D73
D2
LED3
LED2
LED1
1N4005E
D20
R4
R3
R2
R1
(J1)
a
b
d
c
IF NOT SPECIFIED, 1SS270A
IF NOT SPECIFIED, 0.01
µ
F / 16v
A3
*
1
2
3
4
1
2
3
4
R-242M -
1
9
Figure S-3. Printed Wiring Board
WIRING DIAGRAM
0
0
LED1
LED2
LED3
Q30
Q40
C44
C42
(J6)
(J4)
(J2)
(WH-1)
12
4
1
15
1
4
(J3)
(J5)
(J7)
(R60)
(R61)
(R62)
(R63)
C50
C40
C43
C41
R50
R80
Q21
D74
D20
RY2
Q20
ZD71
R71
R70
D70
D3
CN-A
(J1)
C21
C70
R42
R43
R40
R20
R72
4
5
6
R11
R41
B
B
1
E
B
B
E
E
E
B
C
B
A
E
R30
R31
R12
R10
R5
R4
R3
R2 
R73
RY1
D73
R1
D1
VRS1
AC LINE VOLTAGE IS SUPPLIED TO ALL PARTS
C10
C80
D80
ZD21
ZD20
D72
ZD70
D71
R81
C22
C20
Q70
C71
D10
ZD40
ZD1
DIP
WARNING:
WARNING:
TRANSLESS
SP30
IC1
,F
(SW1)
(SW2)
(SW3)
(SW4)
(WH-1)
(SW5)
(SW6)
(SW7)
(SW60)
CN-B
(C60)
(C61)
(R64)
(R65)
3
(CF1)
1
21
22
42
2
D2
C1
20
R-242M -
   
CABINET PARTS
REF NO.
PART NO.
§
DESCRIPTION                                                                        Q'TY         CODE
2-1
GCABUA003URP0
U
Outer case cabinet (G)
1
AT
2-1
GCABUA573WRT0
U
Outer case cabinet (W)
1
AT
2-1
GCABUA009URP0
U
Outer case cabinet (BL)
1
AT
2-2
GLEGPA057WRE0
U
Foot
2
AB
Note:
The parts marked “*” are used in voltage more than 250V.  The parts marked 
∆
 may cause undue microwave exposure
“§” MARK: SPARE PARTS-DELIVERY SECTION
1-1
RH-DZA048WRE0
U
H.V. rectifier assembly
1
AM
1-2
RC-QZA253WRE0
U
High voltage capacitor
1
AN
1-3
QSW-MA133WRE0
U
Monitor switch
1
AN
1-4
QSW-MA131WRE0
U
Monitored latch switch
1
AK
1-5
QSW-MA131WRE0
U
Stop switch
1
AK
1-6
FPWBFA308WRE2
U
Noise filter
1
AQ
1-7
QFS-CA025WRE0
U
Fuse F8A
1
AC
1-11
RTHM-A096WRE0
U
Thermal cut-out 125
°C (Oven)
1
AL
1-13
QACCBA030WRE2
U
Power supply cord
1
AQ
1-14
RMOTEA339WRE2
U
Fan motor
1
AU
1-15
RV-MZA264WRE0
U
Magnetron
1
BK
1-16
RLMPTA066WRE0
U
Oven lamp
1
AK
1-17
FMOTDA226WRK0
J
Turntable motor assy
1
AR
1-18
RTRN-A014URE0
U
High voltage transformer
1
BE
∆
∆
∆
∆
CONTROL PANEL PARTS
∆
∆
∆
*
*
*
*
 REF NO.       PART NO.                          §
     DESCRIPTION                                                                   Q'TY        CODE
REF NO.
PART NO.
§
DESCRIPTION                                                                          Q'TY        CODE
*
*
*
*
∆
3- 1
DPWBFB658WRU0
J
PWB Assy Insp.
1
BM
3- 1A
QCNCMA430DRE0
U
3-pin connector (CN-A)
1
AC
3- 1B
QCNCMA414DRE0
U
2-pin connector (CN-B)
1
AB
3- 1C
FW-VZA218DRE0
J
4P harness (WH-1)
1
AE
3- 1D
RLCDSA036DRE0
U
Liquid crystal display
1
AP
3- 1E
LHLD-A179WRF0
U
LED holder
1
AE
3- 1F
PSHEPA601WRE0
U
LED sheet
1
AD
C1
VCEAB31CW227M
U
Capacitor     220 uF    16V
1
AB
C10
VCKYD11CY103N
U
Capacitor    0.01 uF    16V
1
AA
C20
VCEAB31VW227M
U
Capacitor     220 uF    35V
1
AB
C21
VCEAB31VW106M
U
Capacitor      10 uF    35V
1
AB
C22
VCEAB31HW104M
U
Capacitor     0.1 uF    50V
1
AM
C40
RC-KZA087DRE0
U
Capacitor     0.1 uF    50V
1
AB
C41
VCEAB31CW476M
U
Capacitor      47 uF    16V
1
AA
C42
RC-KZA087DRE0
U
Capacitor     0.1 uF    50V
1
AB
C43-44
VCKYD11CY103N
U
Capacitor    0.01 uF    16V
2
AA
C50
VCCCF61HH330J
U
Capacitor      33 pF    50V
1
AA
(C61)
VCKYF31HF331N
U
Capacitor     330 pF    50V
1
AB
C70
VCEAB31VW476M
U
Capacitor      47 uF    35V
1
AA
C71
VCEAB31VW107M
U
Capacitor     100 uF    35V
1
AB
C80
VCKYD11CY103N
U
Capacitor    0.01 uF    16V
1
AA
D1-3
VHD1N4005E61B
U
Diode (1N4005E)
3
AE
D10
VHD1SS270A/-1
U
Diode (1SS270ATA)
1
AA
D20
VHD1SS270A/-1
U
Diode (1SS270ATA)
1
AA
D70-71
VHD1N4005E61B
U
Diode (1N4005E)
2
AE
D72-74
VHD1SS270A/-1
U
Diode (1SS270ATA)
3
AA
D80
VHD1SS270A/-1
U
Diode (1SS270ATA)
1
AA
IC1
RH-IZA787DRE0
J
LSI
1
AN
LED1-3
VHPSLP7117E-3
U
Light emitting diode
3
AC
Q20
VSKRA101M//-3
U
Transistor (KRA101M)
1
AA
  
  ELECTRIC PARTS
PARTS LIST
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