Page 1
R-9570
.
SHARP SERVICE MANUAL
S7608R9570JII
MICROWAVE OVEN
MODEL R-9570
In the interests of user-safety the set should be restored to its original
condition and only parts identical to those specified be used.
This is a supplemental Service Manual for Model R-9570.
The R-9570 quite similar to Model R-9560.
Use this supplemental manual together with the Service Manual for Model R-9560.
Refer to the R-9560 Service Manual for complete operation, service information, etc.
TABLE OF CONTENTS
Page
FOREWORD
.................................................................................................................................................
1
CAUTION, MICROWAVE RADIATION
..............................................................................................................
1
THUMB INDEX
...............................................................................................................................................
1
PRODUCT DESCRIPTION
..........................................................................................................................
2-6
TOUCH CONTROL PANEL ASSEMBLY ...................................................................................................... 7-20
MICROWAVE MEASUREMENT
.....................................................................................................................
21
SCHEMATIC DIAGRAM
...............................................................................................................................
22
PICTORIAL DIAGRAM ............................................................................................................................
23, 24
CONTROL PANEL CIRCUIT .....................................................................................................................
25, 26
PRINTED WIRING BOARD
......................................................................................................................
27, 28
PACKING AND ACCESSORIES ......................................................................................................................
29
PARTS LIST
.........................................................................................................................................
30- 39
SHARP CORPORATION
Page 2
Page 3
R -9570
SERVICE MANUAL
SHARP
R-9570
FOREWORD
This Manual has been prepared to provide Sharp Service
Personnel with complete Operation and Service Information
for the Sharp Microwave Oven, R-9570.
The Model R-9570 is quite similar to the R-9560.
It is recommended that service personnel carefully study the
entire text of the two Manuals (R-9560 and R-95701, so they
will be qualified to render satisfactory customer service.
CAUTION
MICROWAVE RADIATION
Personnel should not be exposed to the microwave energy
which may radiate from the magnetron or other microwave
generating devices if it is improperly used or connected.
All input and output microwave connections, waveguides,
flanges, and gaskets must be secured.
Never operate the device without a microwave energy absorbing load attached.
Never look into an open waveguide or antenna while the
device is energized.
SHARP CORPORATION
OSAKA, JAPAN
PRODUCT DESCRIPTION
8 PI
5 “I
?&[@ ’ _ -4
TOUCH CONTROL
1:
**
WIRING
. ^
69
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4
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7
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- ‘*I- PARTS LIST
Page 4
R-9570
PRODUCT DESCRIPTION
EXPLANATION OF MICROWAVE COOKING
The Sharp Counter Top Microwave Oven uses microwave ener-
Materials with a high moisture content, like most foods, will
gy to produce heat in the food to be cooked. Unlike conven-
absorb microwave energy. As the microwave energy at a fre-
tional ovens microwave energy will cook foods without
quency of 2450 Megahertz enters the food, the molecules align
applying external heat.
themselves with the energy. Because the microwave are
changing polarity every half cycle, the food molecules are
Microwaves, which are short electromagnetic waves of RF (radio frequency) energy, pass through materials such as glass,
paper, china and most plastics. Materials such as metal and
aluminum foil tend to reflect microwaves and may be used only
as recommended in the cooking instructions.
changing direction every half cycle or oscillating back and forth
4,900,000,000 times per second. This high speed oscillation
causes friction between the molecules, thereby converting the
microwave energy to heat.
SPECIFICATIONS
ITEMS
Power requirements
DESCRIPTIONS
240V
50Hz
Single phase, 3 wire earthed
Power consumption 1.4kW
Microwave output power
Case dimensions
Width
Height
Depth
Cooking cavity dimensions
Width
Height
Depth
Turntable diameter
700W (2 litre water load)
622mm
382mm
476mm
406mm
248mm
422mm
395mm
Control complement
Ciock (l:OO- 12:59)
Minute Timer (O- 99 minutes 99 seconds)
Variable Cooking Mode Selector
Repetition Rate:
HIGH . . . . . . . . . . . . . . . . . . . . . . . . .
Full power throughout the cooking time
MED HIGH . . . . . . . . . . . . . . . . . 24 sec. ON,
8 sec. OFF, approx. 70% of full power
MED
. . . . . . . . . . . . . . . . . . . . . . . . . .
18 sec. ON, 14 sec. OFF, approx. 50% of full power
MED LOW
DEFROST . . . . . . . . . . . . . . . . . . .
12 sec. ON, 20 sec. OFF, approx. 30% of full pow&
LOW
. . . . . . . . . . . . . . . . . . . . . . . . . . 6
sec.
ON, 26 sec. OFF, approx. 10% of full power
Auto Start Cooking
Instant Cooking
Compu. Defrost Cooking
Sensor Cook
Sensor Temp.
Temperature Control (30°C - 1 1 OOC)
Neight
Approx. 27kg
2
Page 5
R-9570
1. Oven ‘door with see through window.
2.
Oven lamp.
3.
Removable turntable.
4. Removable temperature probe.
5.
Temperature probe receptacle.
6.
Door latches.
7. One touch door open button.
8. Auto-Touch control panel.
9. Lighted digital display.
10. Waveguide cover.
1 1. Ventilation openings.
Auto-TouchTM Control Panel
I- INDICATORS
COMPU MC0 IOW MO HIGH
~~~~~ 13 @I /r/ @ IT/
l&p Qy IL/ /A-:!, //\/ /JJf
collx AU10 111
LIGHTED DIGITAL DISPLAY
Shows readout of cooking time, cooking instruction or time of day.
SENSOR COOK PAD
Touch to select Sensor Cook settings 1-O.
SENSOR COOK
I - Fresh wgeL=Lws
2 -Frozen “EqelaDles
3 -Baked pcmlces
rl - Frozen dmnen
5 -Bacon
NUMBER PADS
Touch to enter cooking times, clock time or weight of food.
a-he 8 pasti)
9-Meat I.xel
SENSOR TEMP PAD
Touch to select Sensor Temp settings l-7.
TEMP PAD
Touch to select temperature when using probe.
COMPU DEFROST PAD
Touch to select Compu Defrost settings 1 -5.
during cooking; touch twice
Touch to set Clock, Auto Start or Timer/Hold.
VARIABLE COOKING CONTROL PADS
Touch to select microwave power setting. If not touched, HIGH
is automatically selected.
START PAD
Touch to start oven.
INSTANT COOK PAD
Touch to cook for 1 minute at HIGH or increase by 1 minute
multiples during variable cooking.
3
Page 6
COMPU DEFROST COOKING
Your Sharp Microwave Oven has special function keys to defrost meats and poultry faster and better.
Compu Defrost automatically defrosts roast beef, pork, steaks, chops, minced meat, whole chicken and
chicken pieces. Each key has 3 defrosting stages.
* Suppose you want to defrost a 1 .O kg steak with CompuDefrost.
Step
1.
2.
3.
4.
5.
6.
Procedure
Touch the COMPU DEFROST pad.
Select desired Compu Defrost setting.
Touch 2 to defrost steak.
Touch number pads to enter weight.
Touch the START pad.
Open the door. Turn steak over and shield
any warm portions.
3eturn food to the oven.
lose the door.
Touch the START pad.
1
Pad Order
[COMP” DEFROST)
0
START
Display
j-1 will flash and COMPU
DEFROST will appear on display.
Kg. will flash on and off.
:u::;:,
Kg. stops flashing and remains on
display.
Defrosting time, variable power
of the first stage and COOK will
appear on display.
The timer will begin to count down. When the 1 st stage
finishes, an audible signal will sound 4 times and oven
will stop. COOK indicator will go off.
rland -1 will be dis-
played repeatedly.
-1 and /STf,CTJ will be displayed repeatedly.
( ,,,,) -- fzfs-yq
The timer will begin to count down. When the 2nd stage
finishes, an audible signal will sound 4 times and oven
will stop. COOK indicator will go off.
[-and ImJ will be dis-
played repeatedly.
Page 7
Step
7.
Procedure
Open the door. Turn steak over, remove
any thawed pieces and shield any warm
portions.
Return food to the oven.
Close the door.
8.
Touch START pad.*
I
Pad Order
i
I
Display
1-1 and lmT:-;‘R will be
displayed repeatedly.
The timer will begin to count
down. When the 3rd stage finishes, an audible signal will sound.
COOK indicator will go off.
[ST:=:] will be displayed con-
tinuously.
When door is opened or the STOP/CLEAR pad is touched, STAND will go out and the time of day will
appear on the display.
NOTE:
1. The weight can be entered in 0.1 kg increments. Kilograms must be rounded off to the nearest tenth
of a kilogram. (Example: 1.75 kg should be rounded off to 1.8 kg)
2. Foods weighting more or less than the quantity listed in the chart should be defrosted following guidelines in the cookbook. If the incorrect weight is entered and the START pad is touched -1 and
incorrect weight will be displayed repeatedly. The STOP/CLEAR pad has to be touched to reprogramme
the oven.
Page 8
Compu DefrostTM Chart
Compu Defrost Food
Setting
Amount
Display
Procedure
Comment
!----I
Minced
0.5 r- 1x-,-, rr 7
L’ -li
,-I ,L, l I
l Before defrosting.. .
Stand, covered
1
beef
I
1-a (1 _ - --1 [ _“kJ’“Tl
IO- 15 minutes.
2.5 kg -!’ ‘= .~ --
_
.1
Steak
0.2
--r-i,,-, h7
I
i-
Jy ‘&’ ,-r il
~~-
/ [yT=-\lrl
l Before defrosting
Stand, covered
2
/T /E -
” 1:
1
-= --
l Remove any thawed
IO- 15 minutes.
2.0 kg
pieces after each stage.
3
P
Whole
chicken
Roast beef
pork
lamb
1.0
r- ,- ,-; T-=5 1
L. y)-f 1-l A.1
I
mG;E3=Ep]
l Before defrosting...
l After the 1 st stage
Stand, covered
3.0 kg
. . .
If there are warm
IO- 15 minutes.
portions, shield them. . ..Stand a longer
lo r-;xm
l After the 2nd stage
time, if
JC=I“:EICl[Em-] . . . Turn over and
necessary.
shield the warm
15-20 minutes.
portions.
Chicken
pieces
0.2
/I
l Before defrosting...
I
j SL-
/=’ c
; j:f’FFE- l After the 1st stage
1.5 kg
. . . Turn over and
rearrange.
Stand, covered
[xl j--,“:mj
l After the 2nd stage . . .
IO- 15 minutes.
Remove any thawed
pieces.
Pork chops 0.5
I
pmTTJ l Before defrosting. . . Stand covered
Lamb chops
iRE-1 [-yEmET f&
l Remove any thawed
IO- 15 minutes.
3.O’kg
pieces after each stage.
L I I
,
6
Page 9
TOUCH CONTROL PANEL ASSEMBLY
OUTLINE OF TOUCH CONTROL PANEL
The touch control section consists of the following units as
shown in the block diagram.
(1) Relay unit
(2) Key unit
(3) Control unit
Exchange of signals between each unit is indicated by the arrows in the block diagram. The principal functions of these
units and the signals communicated among them are explained
below.
Relay Unit
Relay unit consists of two Relays (RY 1 and RY2), power source
circuit and buzzer circuit.
Key Unit
The key unit is composed of a matrix, signals generated in the
LSI are sent to the key unit through E8, El 2, El 3, El 5, El 6
and E17.
When a key pad is touched, a signal is completed through the
key unit and passed back to the LSI through AN4-AN7 to perform the function that was requested.
Control Unit
Control unit consists of LSI (IX2429YA), power source circuit,
synchronizing signal circuit, ACL circuit, buzzer circuit, AH sensor circuit, temperature measurement circuit and indicator
circuit.
1)
2)
3)
4)
5)
LSI (IX2429YA)
This LSI controls the AH sensor signal, temperature measurement signal, key strobe signal, relay driving signal for
oven function, and indicator signal.
Power Source Circuit
This circuit generates voltage [VC (for IX2429YA): - 5V,
VF +: - 18.5V, VF-: -22V, VA: - 15V and Vp: -27Vl
necessary in the control unit.
Synchronizing Signal Circuit
The power source synchronizing signal is available in order
to compose a basic standard time in the clock circuit.
It accompanies a very small error because it works on commercial frequency.
ACL Circuit
Circuit to generate signals resetting the LSI to the initial
state when power is supplied.
Buzzer Circuit
The buzzer is responsive to signals from the LSI to emit
noticing sounds (key touch sound and completion sound).
6)
7)
8)
9)
--
t
Absolute Humidity Sensor Circuit
Temperature Measurement Circuit
The temperature of food is measured by the probe. The
probe has a thermistor built in whose resistance varies
with the temperature. The variation of resistance is detected by the temperature measurement circuit.
Stop Switch
A switch to “tell” the LSI if the door is open or closed.
Relay Circuit
To drive the magnetron, fan motor, turntable motor and
light the oven lamp.
10) Indicator Circuit
Indicator element is a Fluorescent Display.
Basically, a Fluorescent Display is a triode having a
cathode, a grid and an anode. Usually, the cathode of a
Fluorescent Display is directly heated and the filament
serves as cathode.
The Fluorescent Display 6-digits, 13-segments are used
for displaying figures.
This circuit detects absolute humidity of food which is
cooking, to allow automatic cooking.
7
Page 10
I I
G)
1
I
n
I
m
I
0
I
0
I
w
1
D
FAN “0i-m
OYLN ‘AYP Am
TURN NLBLE
MOTOR
TO POWER
TRINSFORYLR
&gy” LATCH
[RELAY ClRC”lT]
n
Figure T-l. Block Diagram
I
m
I
0 I
0
I
w
I
D
Page 11
R-9570
DESCRIPTION OF LSI
LS I (K-l. IX2429YA)
The I/O signals of the LSI (IX2429YA) are detailed in the following tables.
EO
El
E2
E3
E4
E5
E6
E7
E8
E9
El0
El1
El2
El3
El4
El5
El6
El7
El8
El9
E20
E21
E22
E23
EX
X
RESET
SO/E24
SI/E25
E26
IRQ/E27
vss
25
26
27
28
29
30
31
32
LSI
ICI
IX2429YA
vcc
N.C
R15
R14
R13
R12
Rll
RlO
R9
R8
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AVcc
AVa +
AVRAVss
E36
E37
R7
R6
R5
R4
R3
R2
Rl
RO
Figure T12. Relationship between pin Nos. and Signals (LSI: IX2429YA)
Pin No. Signal
I/O
Description
----”
1
EO OUT
Digit selection signal.
pl5oHzl
The relation between digit signal and digit are
I 2 mru
2 El OUT
as follows:
Digit Signal Digit
EO ii’____ ---!__--- ,’
3 E2
OUT
EO . . . . . . . . . . . . . . . . . . . . . . . . 1 st
El . . . . . . . . . . . . . . . . . . . . . . . . 2nd
LJ-L-
* 0 2mrec
4 E3
OUT
E2 . . . . . . . . . . . . . . . . . . . . . . . . 3rd
E3 .I...................... 4th
L.--rL
5 E4
OUT
E4 . . . . . . . . . . . . . . . . . . . . . . . . 5th
E5 6th
=n
. . . . . . . . . . . . . . . . . . . . . . . .
6 E5
OUT
Normally, one pulse is output in every
-n
\
fi period, and input to the grid of the GLlD
Fluorescent Display.
ES
-2N
~~
9
Page 12
R-9570
Signal
I/O
Description
Pin No.
7
E6
OUT Segment data signals.
The relation between signals and indicators are as follows:
Signal
Segment
Signal Segment
E6 . . . . . . . . . . . . . . . . . . . . . . . .
LB
El 7 . . . . . . . . . . . . . . . . . . . . . . . . .
c, TEMP
E7 . . . . . . . . . . . . . . . . . . . . . . .
UB El 8 . . . . . . . . . . . . . . . . . . . . . . . . .
b, SENSOR
E9 . . . . . . . . . . . . . . . . . . . . . . . . . . i
El 9 . . . . . . . . . . . . . . . . . . . . . . . . a, DEFROST
El0 . . . . . . . . . . . . . . . . . . . . . . . . j
El1 . . . . . . . . . ..a............ k
El2 . . . . . . . . . . . . . . . . . . . . . . . h
El3 . . . . . . . . . . . . . . . . . . . . . . .
g
El4 . . . . . . . . . . . . . . . . . . . . . . . .
f
El5 . . . . . . . . . . . . . . . . . . . . . . . . e
PmoH2l
El6 . . . . . . . . . . . . . . . . . . . . . . .
d
--J--l+n,-_r :;ix
I
~ZY’ n “tic””
I I
-1 '5 l.ZrnseC
! '
?zqy _ _ _ _ _ _ _ “%;““.
I I
-
1 .A4 mrrc
8
E7 OUT
1) Segment data signal.
Signal similar to E6.
9 E8 OUT
Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to AN4-AN7 terminal while one of G-2 line keys on key
matrix is touched.
10 E9 OUT
Segment data signal.
Signal similar to E6.
El0
11
12
OUT
El1
OUT
Segment data signal.
Signal similar to E6.
1) Segment data signal.
Signal similar to E6.
13
El2
OUT 1) Segment data signal.
Signal similar to E6.
2) Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to AN4-AN7 terminal while one of G-3 line keys on
key matrix is touched.
10
Page 13
RL9570
Pin No. Signal
14
El3
I/O
OUT
I) Segment data signal.
Signal similar to E6.
Description
2) Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to AN4-AN7 terminal while one of G-4 line keys on
key matrix is touched.
15
El4 OUT
Segment data signal.
Signal similar to E6.
16 El5
OUT
1) Segment data signal.
Signal similar to E6.
2) Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to AN4-AN7 terminal while one of G-5 line keys on
key matrix is touched.
17
El6
OUT
1) Segment data signal.
Signal similar to E6.
2) Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to AN4-AN7 terminal while one of G-6 line keys on
key matrix is touched.
18
El7 OUT
1) Segment data signal.
Signal similar to E6.
2) Key strobe signal.
Signal applied to touch-key section.
A pulse signal is input to AN4-AN7 terminal while one of G-7 line keys on key
matrix is touched.
19
El8
20
El9
21 E20
22
E21
23
E22
24 E23
25 EX
26 X
OUT
OUT
OUT
OUT
OUT
OUT
IN
OUT
Segment data signal.
Signal similar to E6.
Segment data signal.
Signal similar to E6.
Used for initial balancing of the bridge circuit (absolute humidity sensor).
Internal clock oscillation frequency setting input.
The internal clock frequency is set by inserting the ceramic filter oscillation circuit with
respect to X terminal.
Internal clock oscillation frequency control output.
Output to control oscillation input of EX.
11
Page 14
R-9570
Pin Nc
Signal
27
RESET
28
SO E24
29
SI E25
30
E26
31
IRQ E27
r
I/O
Description
IN
Auto-clear terminal.
Signal is input to reset the LS I to the initial state when power is supplied.
Temporarily set to
“L” level the moment power is supplied, at this time the LS I is reset.
Thereafter set at “H” level.
OUT
Terminal not used. Connected to GND.
Used for initial balancing of the bridge circuit (absolute humidity sensor)
OUT
OUT
Signal to sound buzzer.
A: Key touch sound.
B: Completion sound.
A:
u
2.4 sec.
1
IN Signal synchronized with commercial power source
frequency.
This is the basic timing for all time processing
of LSI.
20 mrec.
32 vss
IN
Power source voltaae: -5V.
Vc voltage of power source circuit input.
33 RO OUT
1
I
HIGH
Magnetron high-voltage circuit driving signal.
To turn on and off the cook relay (RY2).
In HIGH operation, the signals holds “L” level
during microwave cooking and “H” level
while not cooking. In other cooking modes
(MED HIGH, MED, MED LOW, LOW) the signal turns to “H” level and “L” level in repeti-
tion according to the power level.
1
ON
24 let
Bsac. ’
e
L
ME0 HIGH
OFF
ON
18 “C.
MED
__ 14lac.
OFF
kLs----
L
-
1
ME0 LOW
12 sac.
_ zosr.
DEFROST OFF
c
6uc.
H GND
26 sec.
LOW
-*
F
OFF
‘ON
-L
32 WC
I
I
*,
HOLD
H
34
Rl OUT
Oven lamp and turntable motor driving signal (Square waveform: 50Hz).
To turn on and off shut-off relay (RY-1):
The Square waveform voltage (50Hz) is delivered to the RY 1 driving circuit and RY2.
Control circuit.
20 msec.
~-~-~----~-~--l~~--; GND
During cooking
12
Page 15
RL9570
Pin No.
Signal
I/O Description
35-39
R2-R6
OUT
Teminal not used. Connected to VC.
40 R7
IN
Terminal not used. Connected to GND.
41 E37
IN
Terminal to change the functions according to the Model.
Connected to El 9 Terminal by D 100 and R200.
42 E36
43 AVSS
44 AVR-
IN
IN
IN
Input signal which communicates the door open/close information to LSI.
Door closed;
“H” level signal (OV).
Door opened;
“L” level signal (-5V)
Connected to VC.
Reference voltage input terminal.
A reference voltage applied to the A/D converter in the LSI.
The reference voltage is generally maintained at -5V.
45 AVR +
46 AVCC
47
AN7
IN Reference voltage input terminal.
A reference voltage applied to the A/D converter in the LS I.
Connected to GND. (OV)
L
IN
Connected to GND.
IN
Signa! coming from touch-key.
When either one of G-l 1 line keys on key matrix is touched, a corresponding signal out
of E8, E12, E13, El 5, El 6 and El 7 will be input into AN7.
When no key is touched, the signal is held at “L” level.
48 AN6
49
AN5
IN
IN
Signal similar to AN7.
When either one of G-10 line keys on key matrix is touched, a corresponding signal will
be input into AN6.
Signal similar to AN7.
When either one of G-9 line keys on key matrix is touched, a corresponding signal will
be input into AN5.
50 AN4
IN Signal similar to AN7.
When either one of G-8 line keys on key matrix is touched, a corresponding signal will
be input into AN4.
51 AN3 IN Used for initial balancing of the bridge circuit (absolute humidity sensor).
This input is analog input terminal from the AH sensor circuit, and connected to the
A/D converter built into the LSI.
52 AN2 IN AH sensor input.
This input is an analog input terminal from the AH sensor circuit, and connected to the
A/D converter built into the LSI.
53
AN1
54
AN0
IN
IN
Terminal not used. Connected to GND.
Temperature measurement input.
By inputting DC voltage corresponding to the temperature detected by the temperature
probe, this input is converted into temperature by the A/D converter which is built in to
the LSI.
13
Page 16
Pin No.
Signal
I/O
Description
\
55
R8
OUT
Timing signal output terminal for temperature measurement and thermistor open
judgement.
~-f~~~~~~~
“H” level (GND): Temperature measuring timing.
“L” level (- 5V): Thermistor OPEN judging timing.
56-59
R9-R12 IN Terminal not used.
60
R13
IN Terminal for manufacture test.
Normally, terminal not used.
61
R14
IN
Terminal not used. Connected to VC.
62
R15 IN Terminal for manufacture test.
Normally, connected to VC (--5V) by pull-down resistor,(R75).
63
NC NC
Terminal not used. Connected to GND.
64
vcc
IN
Connected to GND.
14
Page 17
R-9570
POWER SOURCE CIRCUIT
240 V AC power is applied to the primary winding of transformer (Tl). The output voltage of the secondary winding of
transformer (Tl ) is then full-wave rectified by the diode bridge
and smoothed by the electrolytic capacitor to become DC vol-
tage Vp.
Then the voltage Vp is delivered to the constant voltage circuit.
Symbol
Voltage
VC -5v
Application
LSI (ICl), ACL circuit and
Temperature measurement
circuit.
VA -15v
IC2.
VP
VI=+
VF-
-27V
Fluorescent display tube.
: Grid and anode voltage.
- 18.5V Filament of fluorescent display
-22v tube: VF+ - VF- voltage.
Figure T-3.
SYNCHRONIZING SIGNAL CIRCUIT
The secondary winding output voltage of the transformer (Tl)
is half wave rectified, subjected to a voltage division by R21
and R23 and treated as a power source synchronizing signal.
T/C TRANSFORMER
LSI
ICl
c
31
IRO E27
This is the basic timing for all time processing.
C20: Noise filter capacitor.
D20: Clamp diode.
20msec.
Figure T-4.
15
Page 18
ACL CIRCUIT
By switching on power, charge current (il) is fed to C30
through R30 and generates Vz voltage.
If Vz exceeds the threshold voltage of ZD30, ZD30 is turned
on and the current i2 flows. Thus, placing voltage on to the base
of transistor 030 and turning it on.
A reset signal is obtained from the collector.
C31: Noise filter capacitor.
D30
VC 4
A
I
RESET
This circuit is an oscillation circuit which is composed of piezoelectric buzzer SP40 with feedback electrode and transistor 040.
041 works to switch on the buzzer circit and controls how
long the alarm continues to sound.
Figure T-5.
BUZZER CIRCUIT
LSI (IC 1) produces three types of alarm sound by emitting the
signal to control 041 as illustrated.
Figure T-6.
16
Page 19
RL957o
TEMPERATURE MEASUREMENT CIRCUIT
Fig. T-7 shows the temperature measurement circuit. The thermistor in the temperature probe varies in resistance according to the cooking temperature and this variation is converted
to an analog voltage variation to be delivered to the AN0 ter-
minal of LSI which contains an A/D converter. In the LSI there
are produced “H” level and “L” level signals at its output terminal R8, as shown in Fig. T-8.
When the output signal of the terminal R8 is at “H” level, transistor Q60 turns on to short R63, and the circuit equivalent
to that shown in Fig. T-9(a) is set up. With this equivalent circuit in operation, the LSI can perform the temperature measurement through the temperature probe.
TE MP
PROBE
When the output signal of terminal R8 is at “L” level, the transistor 060 turns off to get R61 and R63 connected in series
with each other, and the circuit equivalent to that shown in
Fig. T-9(b) is set up. With this equivalent circuit in operation,
the LSI judges whether the temperature probe is opened or
not: that is, when the temperature probe is opened, the voltage almost equal to VREF/2 is applied to the AN0 terminal of
LSI; when it is not opened (at its normal state), the voltage
lower than VREF/2 is applied thereto. With the temperature
probe opened, the temperature indicator and numeral indicator flash to indicate this state.
Figure T-7. Temperature Measurement Circuit
‘::‘#----J
~1 ------j-----.1::
:I
I 18 msec. 1
I
1-1
Figure T-8. Signal Output Timing at Q2 Terminal
PR.
PR
R62
R62
-[To LSI( ICl 11
I
-WCTo LSI ( ICl 13
R61
R61
R63
VC s
VC z-
(a) R8 tcrminal”H”
(bl I?8 terminal “C’
Figure T-9. Circuit Equivalent to Temperature Measurement Circuit
17
Page 20
R-9570
ABSOLUTE HUMIDITY SENSOR CIRCUIT
(I) Structure of Absolute Humidity Sensor
The absolute humidity sensor includes two thermistors as
shown in the illustration. One thermistor is housed in the closed
vessel filled with dry air while another in the open vessel. Each
sensor is provided with the protective cover made of metal
mesh to be protected from the external airflow.
Sensinq Part
Internal Structure of Sensor
OP
“CI
Vent hole
Figure T-10.
(2) Operational Principle of Absolute Humidity Sensor
The figure below shows the basic strcture of an absolute humidity sensor. A bridge circuit is formed by two thermistors
and two resistors (Rl and R2).
The output of the bridge circuit is to be amplified by the operational amplifier.
Each thermistor is supplied with a current to keep itself heated at about 1 50°C (302OF) and the resultant heat is dissipated in the air and if the two thermistors are placed in different
humidity conditions they show different degrees of heat con-
ductivity leading to potential difference between them caus-
ing an output voltage from the bridge circuit, the intensity of
which is increased as the absolute humidity of the air increases.
Since the output is very minute, it will be amplified by the operational amplifier.
C: Thermistor in
closed vessel
Figure T.
Absolute humtdlty vs.
output voltage character
IstIc
b
11.
Absolute humldlty (g/m’ 1
(3) Detector Circuit of Absolute Humidity Sensor
This detector circuit is used to detect the output voltage of
the absolute humidity circuit to allow the LSI to control the
sensor cooking of the unit.
When the unit is set in the Sensor Cooking mode, 16 seconds
later the detector circuit starts to function and the LSI observes
the initial voltage available at its AN2 terminal. With this voltage given, the switches SW1 to SW5 in the LSI are turned
on in such a way as to change the resistance values in parallel
with R50-1. Changing the resistance values results in that there
is the same potential at both C-3 terminal of the absolute hu-
midity sensor and AN3 terminal of the LSI. The voltage of AN2
terminal will indicate about - 2.5V. This initial balancing is set
up about 16 seconds after the unit is put in the Sensor Cook-
ing mode.
As the sensor cooking proceeds, the food is heated to generate moisture by which the resistance balance of the bridge cir-
cuit is deviated to increase the voltage available at AN2
terminal of the LSI. Then the LSI observes that voltage at AN2
terminal and compares it with its initial value, and when the
comparison rate reaches the preset value (fixed for each menu
to be cooked), the LSI causes the unit to stop the sensor cooking; thereafter, the unit gets in the next necessary opeation
automatically.
When the LSI starts to detect the initial voltage at AN2 terminal 16 seconds after the unit has been put in the Sensor Cooking mode, if it is impossible to take a balance of the bridge
circuit due to disconection of the absolute humidity sensor,
ERROR will reappear on the display and the cooking is stopped.
1) Absolute humidity sensor circuit
050
2)
0
RSO-517
23
E22d
it
sw4-i
0
C
Therm,.for ,n I
I,
MO-719
21
closed vessel
I
s Thermastor tn
open *es,c,
LSI
( IC 1)
AN2
RS3
Figure T- 12.
internal equivalent circuit of 12
CH1 CH2
_-_--------- ---- -
Top View
VOLrTl
VIN(-)I
VIN(+)l
VF.E
Figure T-l 3.
VW
volrr2
VIN(-12
VIN(+)2
--f+4IN(-)2
.--+VIN(+)2
18
Page 21
Rig570
RELAY CIRCUIT
While the unit is cooking a “L” level signal is produced at RO
relay (RY I).
terminal of LSI and also a pulse signal at Rl terminal of LSI.
The “L” level signal from RO terminal is applied to Q82 which
The pulse signal from RI terminal is applied to the rectifier cir-
is connected in series with Q81 and current i2 is made only
cuit made up of D80 and D81 where it is made into DC signal
when both Q82 and 081 are turned on allowing the cook reto charge C81. With C8l charged, 080 and 081 turn on in
succession so that a current il is made to turn on the control
lay (RY2) to turn on.
Figure T- 14.
INDICATOR CIRCUIT
E6,E7 and E9- El9 lo-K,lJB and LB)
EO- E5
Method of Display
Indicator element is Fluorescent Display.
Basically, a Fluorescent Display is a triode having a cathode,
a grid and an anode. Usually, the cathode of Fluorescent Display is directly heated and the filament serves as cathode.
When a proper voltage is applied to the filament to heat it,
thermo-electrons are emitted and, with positive voltage with
respect to filament being applied to the anode and grid, electrons hit against the anode to illuminate the fluorescent body.
If the anode or grid voltage is zero or negative against the filament, thermo-electrons can not reach the anode, hence the
fluorescent body is not luminescent.
In this model, the Fluorescent Display 6-digits, 13 segments
are used for displaying figures.
The Fluorescent Display employs the dynamic drive method,
when the high level of anode signal and grid signal agree, the
corresponding segment displays.
The following signals are responsible specifying segments.
Figure T- 15.
Ftlament
Segment
Character format
Signal
Segment
a El9 COMPU
b El8 MED.
s
El7
LOW
El6
f/$-/b e $1
MED.
Indi- HIGH
e/gR/c
; El 3 cator ;E;;;;
d
h El2
TEMP
i
E9
COOK
j
El0 AUTO
k El1
Kg
Signal
E7
E7
E7
E7
E7
El9
El8
El7
E6
E6
E6
19
Page 22
R-9570
SERVICING
1. Precautions for Handing Electronic Components
This unit uses PMOS LSI in the integral part of the circuits.
When handing these parts, the following precautions
should be strictly followed.
PMOS LSI have extremely high impedance at its input and
output terminals. For this reason, it is easily influenced
by the surrounding high voltage power source, static electricity charged in clothes, etc, and sometimes it is not fully
protected by the built-in protection circuit.
In order to protect PMOS LSI.
1)
2)
When storing and transporting, throughly wrap them
in aluminum foil.
Also wrap PW boards containing them in aluminium
foil.
When soldering, ground the technician as shown in
the figure and use grounded soldering iron and work
table.
a~prox 1 MR
2. Shapes of Electronic Components
@
EC
0
Transistor
DTAI 43EA, DTCI 14EA
2SC2021,2S~937OQ,288851
2SD 1228M
Transistor
Resistor Block
2SB953
R50
3. Servicing of Touch Control Panel
We describe the procedures to permit servicing the touch
control panel of the microwave oven and the cautions you
must consider when doing so.
To carry the servicing, power supply to the touch control
panel is available either from the power line of the oven
proper itself of from an external power source.
(1) Servicing the touch control panel with power supply
from the oven proper:
CAUTION:
THE HI.GH VOLTAGE TRANSFORMER OF THE
MICROWAVE OVEN IS STILL ALIVE TO GIVE YOU
DANGER DURING SERVICING.
Therefqre, when checking the performance of the
touch control panel, put the outer cabinet on the oven
proper to keep you from touching the high voltage
transformer, or unplug the primary terminal (connector) of the high voltage transform& to turn it off; and
the en! of such connector shall be insulated with an
insulating tape. After servicing, be sure to replace the
leads to their original locations.
4
A.
B.
(2)
On some models, the power supply cord between the
touch control panel and the oven proper is so short
that they can’t be separated from each other.
For those models, therefore, check and repair all the
controls (with the sensor-related ones included) of the
touch control panel while keeping it in contact with
the oven proper.
On some models, on the other hand, the power supply cord between the touch control panel and the oven
proper is so long that they may be separated from each
other. For those models, therefore, it is allowed to
check and repair the controls of the touch control
panel whiie keeping it apart from the oven proper; in
this case you must short both ends of the stop switch
(on PWB) of the touch control panel with a jumper,
which brings about an operational state that is equivalent to that with the oven door being closed.
As to the sensor-related controls of the touch control
panel, their checking is allowed if the dummy resis-
tor(s) whose resistance is equal to that of those controls is used.
Servicing the touch control panel with power supply
from an external power source:
Disconnect the touch control panel completely from
the oven proper, and short both ends of the stop
switch (on PWB) of the touch control panel, which
brings about such an operational state that is equivalent to that with the oven door being closed. And connect an external power source to the power input
terminal of the touch control panel, and then it is al-
lowed to check and repair the controls of the touch
control panel; as in the case of (11-B above, it is here
also possible to check the sensor-related controls of
the touch control panel by using the dummy
resistor(s).
‘. Sevicing Tools
Tools required when servicing the touch control panel assem bly.
1) Soldering: 30W
(To prevent leaking current, it is recommended to use
a soldering iron with grounding terminal.)
2) Oscilloscope: Single beam, frequency range: DC 10MHz type or more advanced model
3) Others:
Other tools
-e
5. Other Precautions
1)
2)
3)
4)
5)
When turning on the power source of the control unit,
remove the aluminum foil applied for preventing static electricity.
Connect the connectors of the indicator and key units
to the control unit taking care that the lead wires are
not twisted.
After aluminum foil is removed, take extra care that
abnormal voltage due to static electricity etc. is not
applied to the input or output terminals.
Attach connectors, electrolytic capacitors, etc. to PW
board, taking care that all connections are tight.
Be sure to use specified components where high precision is required.
20
Page 23
MICROWAVE MEASUREMENT
After the adjustment of door interlock switches and door is
completed individually or collectively, the following leakage
test must be performed with a survey instrument and it must
be confirmed that the result meets the requirements of the performance standard for microwave oven.
REQUIREMENT
The safety switch must prevent microwave radiation emission
in excess of 5mW/cm2 at any point 5cm or more from exter-
nal surface of the oven.
PREPARATION FOR THE TESTING:
Before beginning the actual test for leakage, proceed as
follows;
1. Make sure that the test instrument is operating normally
as specified in its instruction booklet.
Important:
Survey instruments that comply with the requirement for
instrumentation as prescribed by the performance standard
for microwave ovens must be used for testing.
Place the turntable tray into the oven cavity.
Place the load of 275 f 15ml of water initially at 20 f 5OC
in the centre of the oven tray. The water container should
be a low form of 600ml beaker with inside diameter of approx. 8.5cm and made of an electrically nonconductive
material such as glass or plastic.
The placing of this standard load in the oven is important
not only to protect the oven, but also to insure that any leakage is measured accurately.
Close the door and turn the oven ON with the timer set for
several minutes. If the water begins to boil before the sur-
vey is completed, replace it with 275ml of the cool water.
3. Move the probe slowly (not faster than 2.5cm/sec.) along
the gap.
6. The microwave radiation emission should be measured at
any point of 5cm or more from the external surface the
oven.
Recommended instruments are:
NARDA 8 100
NARDA 8200
HOLADAY HI 1500
SIMPSON 380M
21
Page 24
R -9570
1 I 2
3 I 4 5 6
1
SCHEMATIC DIAGRAM
MODEL R-9570
CIRCUIT
SUBJECT TO
CHANGE
240~~50Hr
WITHOUT NOTICE
DOOR CLOSED
COOK OFF CONDITION
1. AC CORD CONNECTION
BRN : BROWN
BLU : BLUE
G-Y : GREEN AND YELLOW
STRJPE
I18 : SECTIONAL AREA OF
BLlJ/18
BRNA8
.
lG-~/i8
L
0.75mm’MIN.
2. SHORT PROTECTOR
CONNECTION
ORG : ORANGE
WHT : WHITE
MAPCA127-1
(957oJ)
B
Figure S-l.
Schematic Diagram
H
1 I 2
I 3 4
I 5 I 6
JPPER
ATCH
iWiTCl
MONITOR SWITCH
CN-E
1 Al
---
0
A5
4
1
’ TEMP.
FUSE
ns”c
LOWER
LATCH
SWlTCH
A
B
C
D
E
F
G
22
Page 25
0
”
CONNECTOR G
CONNECTOR
IHI
-
CONNECTOR (c) (B)
SLIP
CONNECTOR
TO
CONNECT
(B)
STOP
SWITCH
TO
AH SENSOR
CONNECTOR
0.2)
c
TO
It-
I I----
RED
0
0
~O~NNE&~FI(II)
CONNECTOR k-l
(F)
L
LOWE
r-
L ATCI
SWI TC
1
I
RELAY UNIT
Figure S-2. Pit
Page 26
RED
VI
INITOR NC
IITCH -
BLU
M
WHT
WHTL
8
k
TURNTABLE
MOTOR
ELK
FAN MOTOR
p-4
TEMP.
FUSE
OVEN LAMP
OVEN
LAMP
SOCKET
BLK
BLK
I
-pHT
J
MAGNETRON
POWER
TRANSFORMER
HIGH
VOLTAGE
CAPACITOR
B
C
D
E
F
G
H
Pictorial Diagram
7
I
8 I
9
-
I 10
11
I
12
24
Page 27
POWER
SUPPLl
AC 240V
SOHZ
[
I-
i;
Fl
202
04A
HZ9C-2
FAN MOTOR
10-i
OVEN LAMP AQO
TURN TABLE
=""\fRlfSI
MOTOR
r
TO POWER
TRANSFORMER
gJWqT$;wE~ LATCH
I
RELAY UNIT
-
r-E-
R201
200k
TEST
TERMINAL
060
OTC114EA
[
R61
5 97kF
VA ic-2
-----z%
360kF 1 i
STOP SWITCH
TEMP PROBE
IOOOR SWITCH1
THERMISTCf?
Figure S-6.
Con
_
1
I
2
I
3
I
4
I
5
25
Page 28
R-9570
I
7
I
8
I
9
I
10
I
11
I
12
-7
A
B
C
D
E
F
G
H
7-l
--.
1
c
i
IC31
, 0 OISJI/ZSV
0 ol5P/2c57v
1 CHJ UNIT )
I
F-. Ft : FILAMENT TERMINAL
FLUORESCENT DISPLAY TUBE
I- ----A
030 DTA143EA
R31
4 7k
I
k
- VC’ I-WI
bG - v?;B- ,+~-$”
; MED. ; LOW. : MED. I
VF+ .(-lE SW F+ 2
F-
VP
J
VF- I-22V)
VP I-27VI
/
r,,
R22
47K
R200
15k
2
r-i
L-J
I?110
27kx6
VP
CFI C
1 I I-l-Tl
--
I
I I
t4
. .
I
E3
E2 El -----p
--
t
097
096
us1060 ustQ60
“u&60 + :%60 + ~:~OGO t 2iO60
-.--a.
0
9
8 7
6
SENSOR
TEMP
a. .^...
L-@-j
HIGH 1 M. HIGH 1 MED 1 ;;;kIT 1
LOW 1 TEMP (
RSO RNAFST
START
AUTO START
1 STOP INSTANT
TIMER
CLOCK 1 CLEAR
COMPU
COOK
HOLD DEFROST
NOTE : + : IF NOT SPECIFIED, 1/5W, ? 5%
Control Panel Circuit [NEW]
I 7
I
8 I
9
I
10
I
11
I
12
26
Page 29
R-9570
0
10 I I
CN-H3
q
I
t
@Ye
IC- I
. -
“a’“-
- R76
I
4
C
1 I 2 3
I 4
I
5 I
6
1
B
8
id;* =
-I
I
G
g E g ,s& I’?
:
E
I
s
T
I
IIIg
D
TTT?? ..c1 t/F-z f!
E
&l+z-q;; * 31 q I”
I:: 0
I
fld
e4
+
F
a
e ‘4:
a.
d ---
%r@ i.L
ilos!--e
$&FT 6
9;
*
.C c
0 -
+
04irnI
-VP
IC e
oln
Y&-g
I
1
;
g o=-
CN-F
STOP TEMP.
SW.
PROBE
Figure S-4. Printed Wiring Board (Control Unit)
c
1
I
4
2
1 3 4 I 5 I 6
27
Page 30
R-9570
1
I
2 I
3
I
4
I
5 6
\
FAO84WR -’
, i’
0
k J L,.
:- 4
BRNy
,E
x
us
1
s
SdP
kdr
W. g*
‘0
-0
P
9
a
‘,
!”
i
f “~~$~
a* t
LQQA
s
03-J
ul w
II HII
L
Figure S-5. Printed Wiring Board (Relay Unit)
1 I 2 [ 5 1 I 3 l 4 6
J
28
Page 31
R&570
PACKING AND ACCESSORIES
PLASTIC BAG
GiZiGS-\
DOOR PROTECTION SHEET
%(SPADPQOO7YBPO)
TRAY HOLDER
%(SPADF0440WREO)
k
MICROWAVE OVEN
PACKING ADD KIT
d+(CPADB0222WRKO)
PACKING CASE
+k (SPAKCA213WR EO)
SC: Not Replacement Items
29
Page 32
R-9570
PARTS LIST
REF. NO.
PART NO.
DESCRIPTION
Q’TY CODE
ELECTRIC PARTS
l- 1
Q A C C A A 0 0 7 W R E 0
Mains supply cord
l- 2
QFS-CC1001 YBEO
Fuse:MlOA
l- 3
Q F S H D 0 0 1 9 W R E 0
Fuse holder
l- 4 Q SW-M 0 1 7 2 W R E 0
Monitor switch (V-l 6G-2C25)
l- 5
Q S W-M 0 1 7 3 W R E 0
Upper and lower latch switch
(V-l 6G-3C25)
l- 6
F D T C T A 0 0 1 W R K 0
AH sensor assembly
l- 7
RLMPT0021WREO
Ovenlamp
l- 8
Q S Q C L 0 0 5 5 W R E 0
Oven lamp socket
l- 9
RMQTEOl 84WRE0
Fanmotor
l-10 /
R H-D Z A 0 0 2 W R E 0
Short protector
l-l 1
Q S W-M 0 1 7 4 W R E 0
Stop switch (V-5330DK)
l-12
R M 0 T D 0 0 8 3 W R E 0
Turntable motor
l-13
QFS-T0026WREO Temp.fuse
l-14
R T R N - A 0 6 2 W R E 0
Power transformer
l-l 5
RV-MZOl 62WRE0
Magnetron
l-16
R C-Q Z A 0 2 5 W R E 0
High voltage capacitor
l-1 7
R H - D Z A 0 0 1 W R E 0
Rectifier
l-18 Q C N C W 0 0 4 4 W R E 0
Slip connector
l-19
F D T C T A 0 4 3 W R K 0
Temperature probe assembly
l-20 FPWBFA084WREO Relayunit
l-20A
Q P L G J 2 3 8 1 Y A Z Z
4-pin connector (A)
l-20B
Q C N C M 2 3 8 8 Y A Z Z
7-pin wire connector (E)
l-2oc QLUGP201 4YAZZ I-pinpost(Pl,P2)
Cl
V C Q Y C U 1 H M 1 0 4 K
Capacitor 0.1/~F 5ov
c2
V C E A A H 1 H M 1 0 8 M
Capacitor 1 OOOpF 5ov
Dl R H-D X 2 0 0 6 Y AZ Z
Diode bridge (SlWBAlO)
D2
VHDl 1 ES1 / / /-1
Diode(llES1)
D82, D83
V H D U S 1 0 6 0 / / - 1
Diode (US1060)
Fl
Q F S-A 2 0 1 0 Y A Z Z IC
protector
Ll R C i L F 2 0 0 3 Y A Z Z
Filter coil (22lH)
Q40 V S 2 S A 9 3 7 -Q / - 1
Transistor
(2SA937Q, R, S)
Rl
VRD-ST2EF2R2 J Resistor
2.2Q
1/4w
R20
VRD-ST2DF 183 J Resistor
18k$I ll5W
R40
VRD-ST2DFl 84 J Resistor
180kQ 1/5w
R41,R43 VRD-ST2EF471 J Resistor
47ofi 1/4w
R42
VRD-ST2DF392 J Resistor
3.9k0
1/5w
RYl,RY2 RRLY-21 02YAZZ Relay(D.Cl8V)
SP40
RALM-2021 YAZZ Buzzer
i-1
R T R N P 2 1 1 0 Y A Z Z Transformer (for control unit)
dRS1
RH-VX201 SYAZZ Varistor
.,I -a
. .
.
Note: I ne voltage supplied
to the parts marked
“%” is greater than 250V.
1
AQ
1
AE
1
AF
1 AG
2
AG
1
AY
2
AF
2
AH
1
AW
1
AQ
1
AH
1
AV
1 AG
1
BQ
1
BN
1
AY
1
AM
1 AP
1
AS
1
BF
1
AC
1
AH
2 AA
1 AB
1
AD
1
AF
1
AB
2 AA
1
AF
1
AC
1 AB
1
AA
1 AA
1 AA
2 AA
1
AA
2
AP
1
AF
1
AR
1
AF
30
Page 33
REF. NO.
PART NO. DESCRIPTION
Q’TY
CODE
CABINET PARTS
2- 1 FDA i - 0 2 7 0 W R Y 0 Base cabinet (A) 1 AP
2- 2 GDA i - 0 2 7 1 W R P 0 Base cabinet (B) 1 AK
2- 3 GLEGP0021WREO Foot 4 AB
2- 4 G C A B U 0 2 3 5 W R P 0 Outer case cabinet 1 AZ
2- 5 T M A P C A 1 2 7 W R R 0 Schematic diagram 1 AB
2- 6 L S T P P 0 0 6 5 W R F 0 Cord anchorage (upper) 1 AA
2- 7 L S T P P 0 0 6 6 W R F 0 Cord anchorage (lower) 1 AA
2- 8 L B N D K 0 0 7 1 W R W 0 Capacitor holder 1 AD
2- 9 XWHNZ57-1 5 100 H%gespacer(l.Omm) 1 AA
2-l 0 FHNG-01 07WRY0 Lowerovenhinge 1 AF
2-1 1 P S P A G Q 0 0 2 Y B E 0 Vibration proof cushion 1 AA
2-12 L C H S S 0 0 4 0 W R W 0 Relay unit mounting plate 1 AH
CONTROL UNIT PARTS
3- 1 C P W B F 1 9 7 SW R K 0 Control unit 1 BS
3- 1A Q P L G J 2 2 3 1 Y A Z Z 4-pin connector (B) 1 AB
3- 1B Q P L G J 2 3 6 2 Y A Z Z 3-pin connector (C), (H) 2 AB
3- 1c Q P L G J 2 3 4 8 Y A Z Z -/-pin connector (F) 1 AC
3- 1D Q P L G J 2 3 3 2 Y A Z Z 12-pin connector (G) 1 AE
3- 1E R V - K X 2 0 4 4 Y A Z Z Fluorescent display tube 1 AX
c3, c5
V C E A A A 1 E M 4 7 6 M Capacitor
47/~F 25V
2
AB
c4 V C E A A A 1 V M 1 0 7 M Capacitor 1 OO/LF 35v 1 AB
C7, C20 V C K Y A T 1 E X 1 5 3 N Capacitor
0.015pF
25V
7
AA
c31, c51
C52, C60
c70
c30 V C E A A A 1 H M 1 0 5 M Capacitor v 5ov 1 AA
c50 V C T Y P U 1 E F 1 0 4 Z Capacitor O.lkF 25V 1 AC
C80 V C E A A A 1 H M 4 7 4 M Capacitor 0.47/~F 5ov 1 AA
C81 V C E A A A 1 H M 4 7 5 M Capacitor 4.7pF 5ov 1 AA
CFl R C R S - 2 0 5 8 Y A Z Z Ceramic filter (4.0 MHz) 1 AD
D20,D30 VHDUSl 060 / /-1 Diode(US1060) 14 AA
D51, D52
D80, D81
D84, D91
093 - D97
DlOO
ICl RH-
i X2429YAZZ LSI
1
AV
IC2 RH-i X21 54YAZZ lC(lR94558)
1
AD
Ql VS2SB953-Q/ - 1 Transistor (2SB953Q, R) 1 AG
Q2 V S 2 S D 1 2 2 8 M Q- 1 Transistor (2SDl228MQ, R) 1 AC
31
Page 34
REF. NO.
PART NO.
DESCRIPTION
Q’TY \ CODE
Q30, Q41
Q50, Q82
Q60
Q80
Q81
R2
R3
R5
R6
R7
R21, R55
R62, R71
R81, R91
R93-R97
RI OO-
R103
R22, R54
R76, R82
R23, R200
R30
R31, R83
R50
R51
R52
R53
R61
R63
R70
R75
R77
R80
R84
R90
3110
3111
3201
7Dl
7D2
ZD3
ID30
VSDTA-1 43-A--‘
Transistor (DTAl43EA)
VSDTC-1 14-A--’
vs2sc2021 l/l/
VS2SB851--RI--’
VRS-FT3AB271,
VRD-ST2EF391,
VRD-ST2HA471,
VRD-ST2HA681,
VRD-ST2HA620,
VRD-ST2DF103,
VRD-ST2DF473J
VRD-ST2DF153J
VRD-ST2DF332J
VRD-ST2DF472J
RR-KZ21 34YAZZ
tiRD-ST2HA331J
Resistor 33oti ll2W
tiRN-RT2DC182F Resistor
1.8kQ (F)
1/5w
VRN-RT2DC364F Resistor
360kQ (F)
1 l5W
RR-AZ5971YAZZ
Resistor
5.97k!-I (F) ll5W
VRD-ST2DF434J Resistor
430kfi
1 l5W
VRD-ST2DF273J
Resistor 27kQ 1 l5W
VRD-ST2DF102J
Resistor
1kR 1/5w
VRD-ST2DF201J
Resistor
2000 1 l5W
VRD-ST2DF331J
Resistor
33oti 1/5w
I/RD-S.T2DF222J
Resistor
2.2k!l 1 l5W
qR-KZ2144YAZZ
Resistor block (270kfi x 4)
qR-KZ2142YAZZ
Resistor block (27kM x 6)
qR-KZ2143YAZZ
Resistor block (56kSt x 14)
JRD-ST2DF204J
Resistor
200k0
/HEHZSC-2 / /-1
Zener diode (HZ5C-2)
/HEHZSC2 / / /-1
/HEHZSA3/ / /-1
/HEHZ4B-3/ /-1
-PNLCA131WRKO
;MAD i 0050WRF0
Transistor (DTCl 14EA)
Transistor (2SC202 1 Q, R)
Transistor (2SB85 1 R, S)
Resistor
27OQ l.OW
Resistor 39o!J 1 l4W
1
AA
Resistor
47052
1 t2w 1 AA
Resistor 68Ofi ll2W 1 AA
Resistor
620
1 l2W
1 AA
Resistor 1 Okn ll5W 15
AA
Resistor
Resistor
Resistor
Resistor
Resistor block
47kfl ll5W
15kQ 1 l5W
3.3kfi 1 l5W
4.7kG! ll5W
1/5w
Zener diode (HZ9C-2)
Zener diode (HZ 9A-3)
Zener diode (HZ 4B-3)
zontrol panel frame assembly
Iisplay filter (A)
1
AB
AC
AB
AB
AA
AA
AA
AA
AA
AD
AA
AA
AA
AA
AA
AA
AA
AA
AA
AA
AB
AC
AD
AA
AB
AB
AB
AB
BD
AF
Page 35
R-9570
REF. NO.
PART NO.
DESCRIPTION Q’TY
CODE
3-
4 PFiLWA017WRPO Display filter (B)
3- 5
JBTN-A153WRFO
Open button
3-
6 MSPRC0070WREO Button spring
3-
7 FLEVF0140WREO Open device
3-
8 XPNSD80---000 Pin
AB
AD
AA
AG
AA
3- 9
( P C U S U 0 4 9 0 W R P 0 1 Shading cushion
I
1
( AB
4- 1
4- 2
4- 3
4- 4
4- 5
4- 6
4- 7
4- 8
4- 9
4-10
4-l 1
4-l 2
4-13
4-14
4-l 5
4-16
4-l 7
4-l 7A
4-18
4-19
4-20
4-2 1
4-22
4-23
4-24
4-25
4-26
4-27
4-27A
4-27B
4-27C
4-28
4-28A
DQVN-0244WRTO
Oven cavity
PCQVP0279WREO
Waveguide cover
PCLiCQOOlYBEO
Clip
PFiLW0035WRPO
Oven lamp filter
NTNT-0068WRFO
Turntable tray
NCPL-AOOlWRFO
Turntable coupling
PSPA-AOOSWREO
Coupling spacer
LANGQ0433WRWO
Turntable motor mounting bracket
NBRGP0018WRFO
Coupling holder
LHLD-0054WRFO Turntable roller cover
PCQVP0352WRPO
Turntable motor cover
FHNG-0106WRYO
Upper oven hinge
NRQLP0026WREO
Turntable roller
NSFTT0074WREO
Turntable roller shaft
LANGQ0432WRWO
Lamp socket mounting plate
PDUC-0519WRFO
Steam duct
FFANJ0031WRKO Fan blade assembly
LSTY-0030WREO
Fan retainer clip
PDUC-0518WRFO Magnetron cooling duct (A)
PDUC-0515WRFO
Magnetron cooling duct (B)
LANGF0340WRPO
Chassis support
LANGK0141WRFO
Upper latch hook
LANGK0232WRFO
Lower latch hook
WLEVFOl 24WRE0
Monitor switch lever
GCABD0047WRWO
Rear cabinet
LHLDK0005YBFO Cord holder
vlLEVP0067WRFO
Stop switch lever
FDECQA002WRKO
Upper sash assembly
HDECQA035WRFO
Upper sash
LANGT0416WRWO Upper sash mounting plate
PSLDM0364WREO
Ferrite
FDECQA003WRKO
Lower sash assembly
HDECQA036WRFO
Lower sash
OVEN PARTS
33
BN
AF
AA
AB
AW
AG
AB
AF
AC
AE
AF
AE
AD
AA
AD
AH
AF
AA
AH
AH
AE
AF
AE
AC
AR
AB
AC
AT
AN
AG
AH
AU
AN
Page 36
R-9570
REF. NO.
PART NO.
DESCRIPTION
Q’TY ’ CODE
4-28B
L A N
G T 0 4 1 7 W R W 0
Lower sash mounting plate
1 AG
4-28C
P S L D M 0 3 6
4 W R E 0
Ferrite (same as 4-27C)
1
AH
4-29
H D E C Q A 0 3
4 W R F 0
Left sash
1
AG
4-30 L A N
G Q 0 4 3
4 W R W 0
AH sensor mounting plate
1
AD
4-31
P C 0
V P 0 3 5
3 W R W 0 AH sensor cover
1
AD
DOOR PARTS
5
C D 0 R F A 0 8 1 W R K 0 Complete door assembly
1 BN
MISCELLANEOUS
6- 1
QW-QZO 164WREO
HighvoltagewireA
1
AE
6- 2
QW-Q Z 0 1 3 2WR E 0
High voltage wire B
1
AE
6- 3
Q W- V Z A 0 0 9 W R E 0
Earth wire ‘(for AH sensor)
1
AB
6- 4
F W- V Z A 1 6 2 W R E 0
Main wire harness
1
AU
6- 5
L B N D K 0 0 1 2 Y B E 0
Wire holder (WH-1, ‘IL”)
1
AA
6- 6 TCAUHO 11 4WRR0
Cautionlabel
1
AC
6- 7 TCADC0220WRRO
Cookbook
1
AY
6- 8
T i N S E A 1 5 3 W R R 0
Operation manual
1 AK
6- 9 TSPCNA279WRRO
Nameplate 1
AC
SCREWS, NUTS AND WASHERS
7- 1
L X - B Z 0 1 4 1 W R E 0
Screw; monitor switch lever
mtg.
1
AA
7- 2
L X - B Z 0 1 8 6 W R E 0
Screw; Capacitor holder, rectifier,
turntable motor cover
mtg. 5
AA
7- 3 X 0 T S C 4 0 P 1 2 0 0 0 Screw; outer case cabinet
mtg.
7
AA
7- 4 L X - E Z 0 0 4 6 W R E 0
Screw; outer case cabinet
mtg.
2 AA
7- 5
L X -C Z 0 0 4 7 W R E 0
Screw; cabinet base (A)
and lower sash assembly
4
AA
7- 6 L X-C Z 0 0 5 2 W R E 0 Screw; latch
upper hook and lower latch hook mtg.
2 AA
7- 7 X B B U W 3 0 P 0 8 0 ,O 0
Screw;
lamp socket mounting plate mtg.
2
AA
7- 8 X F P S D 3 0 P 1 0 0 0 0 Screw; fuse
holder mtg.
1
AA
7- 9 X B P S D 4 0 P 2 5 0 0 0
Screw;
fan motor mtg.
2 AA
7-l 0 X B P S D 4 0 P 2 0 b 0 0 Screw;
cord anchorage mtg.
1 AA
7-1 1 X B P S D 5 0 P 1 0 K 0 0 Screw;
magnetron mtg.
4
AA
7-l 2 X B P S D 6 0 P 1 4 K
S 0
Screw; transformer mtg.
power
2 AA
7-l 3 X B T U W 4 0 P 0
8 0 0 0 Screw; turntable motor assembly
mtg.
3
AA
7-l 4 X F P S D 4 0 P 0 8 0 0 0
Screw; turntable motor mtg.
2
AA
7-15 X C P S D 3 0 P 0 8 0 0 0
Screw; oven lamp socket, left sash
assembly mtg.
4
AA
7-16 L X -C Z 0 0 7 4 W R E 0 Screw; oven hinge and lower
upper oven hinge mtg.
5
AA
7-l 7 X C T D S 4 0 P 1 2 0 0 0 Screw; cabinet base
(B), upper sash assembly and lower
11
AA
sash assembly, rear cabinet mtg.
7-18 X WV S D 3 5 - 0 4
0 0 0
Washer; control unit
mtg.
2
AA
7-l 9 L X-N Z 0 0 7 0 W R E 0 Nut; earthing (mains
supply cord) mtg.
1
AA
&I-I- -Fl
I.
. . .
Iuole: I ne voltage supplred to the parts marked “ %” is greater
than 250V.
34
Page 37
R-9570
REF. NO.
PART NO.
DESCRIPTION
Q’TY
LODE
7-20 XNESD40-32000
7-21 XWWSD60-08000
7-22 XWHSD50-08000
7-23 XTTSD40P12TVO
7-25 XCPSD30P08XSO
7-26 XCTSD40P08000
7-27 XCPSD30P08XSO
7-28 XHPSD30P12XSO
7-29 XTPSD40P12XSO
Nut; fan motor and cord anchorage (upper) mtg.
Washer; power transformer mtg.
Washer; monitor switch lever mtg.
Screw; chassis support mtg.
Screw; AH sensor assembly mtg.
Screw; AH sensor cover mtg.
Screw; relay unit mtg.
Screw; control unit mtg.
Screw; open device mtg.
3
AA
1
AA
1
AA
5
AA
2
AA
4
AA
4
AA
3 AA
2
AA .
HOW TO ORDER REPLACEMENT PARTS
To have you order filled promptly and correctly, please furnish the following information.
1. MODEL NUMBER
2. REF. NO.
3. PART NO.
4. DESCRIPTION
35
Page 38
I
P
1 I 2 3 I 4 1 5 I 6 .’
h CABINET PARTS
A
B
C
D
E
F
G
H
B
c
7-4
D
9
E
F
36
Page 39
R-9570
OVEN PARTS
Page 40
1
I 2 I
3
4
I
5
I
6. _
R-9570
CONTROL PANEL PARTS
I
I
I
i
I
I
I
I
I
I
.J
1 I 2
1 3 I 4
I 5 I 6
I
38
H
Page 41
R-9570
1
I
2 ‘I
3
!
4
I 5
I
6
A
B
C
D
E
F
G
5
H
DOOR ASSEMBLY
MISCELLANEOUS
A
B
C
D
E
F
G
H
1
I
2
3
I
4
I 5 I
6
39
Page 42
m
i
Ip
.
-.
3
al
n
-. 3 k
x
3
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