Sanyo EM-G200, EM-G400 Service Manual
1
FILE No.
SERVICE MANUAL
MICROWAVE OVEN
WITH GRILL
EM-G200(UK)
EM-G200(Spain)
EM-G200(Portugal)EM-G400(Portugal)
Product
EM-G200(UK)
EM-G200(Spain)
EM-G200(Portugal
EM-G400(UK)
EM-G400(Spain)
EM-G400(Portugal
Code No.
EM-G400(UK)
EM-G400(Spain)
FOREWORD
Rea
d this manual carefully, especially precaution
stri
tly. Careless servicing and testing may expose y
PRECAUTIONS TO BE OBSERVED
POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
(a) Do not operate or allow the oven to be operated with the door open.
(b) Make the following safety
other microwave source, and make repairs if necessary:
(1) Interlock operation, (2) proper door closing, (3)
otherdamage), (4) damage to or loosening of
abuse.
(c)
Before
(d) Any defective or misadjusted components
generation and transmission systems
described
turning on microwave power for any
microwave generating compartments, check the magnetron, wave-guide or transmission line,
and cavity for proper alignment, integrity, and connections.
in
this manual
checks on all ovens
before
BEFORE
shall
the oven is
in
be repaired, replaced, or adjusted by procedures
microwave energy, and follow the procedu
on
,ourself
AND DURING SERVICING TO AVOID
to be serviced
hinges
service
the interlock, monitor, door
released
to the microwave energy leakage.
before
seal
and sealing surfaces (arcing, wear, and
and
latches,
test or inspection within the
to the owner.
activating the magnetron or
(5)
evidence
seal,
of dropping or
and microwave
re
ENG 30
.
REFERENCE No.
SM-850023
Adjustment Procedures
Specifications
Power Output
Precautions andRepair Service Tips..
PERSONNEL SHOULD NOT BE EXPOSED TO
THE
MICROWAVE ENERGY WHICH MAY RADIATE FROM THE MAGNETRON OR OTHER
MICROWAVE GENERATING DEVICE IF IT
IMPROPERLY
INPUT AND
TIONS, WAVE GUIDES,
KETS MUST BE
THE DEVICE WITHOUT A MICROWAVE
GY ABSORBING LOAD ATTACHED. NEVER
LOOK INTO
ANTENNA WHILE THE DEVICE
.......................................................
Measurement
MICROWAVE ENERGY
USED OR CONNECTED.
OUTPUT
AN
OPEN WAVE GUIDE OR
........................................
................................
CAUTION
MICROWAVE
FLANGES,
SECURE.
NEVER
IS
................
IS
ALL
CONNEC-
AND GAS-
OPERATE
ENER-
ENERGISED
TABLE OF CONTENTS
1
Circuit Diagram
Test Procedures and Troubleshooting..
2
2
Disassembly Instructions
Exploded View and Parts list
2
....................................................
...............
.....................................
...............................
3-4
5-8
9-10
11-15
1. ADJUSTMENT PROCEDURES
TO AVOID POSSIBLE EXPOSURE TO MICRO-WAVE
ENERGY LEAKAGE, THE FOLLOWING
MENT OF THE INTERLOCK SWITCHES SHOULD
BE MADE ONLY BY AUTHORISED SERVICE
PERSONNEL
PRIMARY INTERLOCK SWITCH, DOOR SENSING
SWITCH AND INTERLOCK MONITOR SWITCH
ADJUSTMENT
(Figure 1)
(1)
Loosen
(2) Adjust the
up and
2-l. Between the Iever and the switch body
2-2. Between the Iever and the switch body
2-3. Between the
(3) Tighten the
(4) Make
the primary interlock switch opens when the door
opened very slowly, according to “CHECKOUT
PROCEDURE FOR SWITCHES”
(5) Make
the primary interlock and secondary interlock
switches
according to “CHECKOUT PROCEDURE FOR
SWITCHES”
(6) Make
the
measured with a detector. (
adjustments must be made for minimum energy
leakage readings.)
2 screws securing the
lever
stopper position so that it is pushed
pull
forward until there is about zero gap.
the door sensing switch.
on
the interlock monitor switch.
latch lever
on
the primary interlock switch.
when the door
sure
sure
sure
limit
of the regulation
latch is
lever
stopper screws securely.
the interlock monitor is
the interlock monitor is open
close
when the door is
on
page 7.
the
microwave
lever
and the switch body
securely locked.
energy leakage is below
(5mW/cm2)
All Service
stopper.
closed
on
page 7.
closed
when
ADJUST-
after
before
very slowly,
on
Lever Stopper
/
Door
Latch
rl
/
is
I
Latch Lever
Primary Interlock
Switch
Door Sensing
Switch
n
Figure 1
2. SPECIFICATIONS - EM-G200
Rated Power Consumption........ Micro1250W
Grill1000W
Dual 2250W
Microwave Output . . . . . . . . . . . . . . . . . . . . . .
Frequency.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Supply1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rated Current
.,...........................Micro
8OOW(
Adjustable 80W
through 800W
2,450MHz ±
50MHz
230V,50Hz
5.6±15%
Grill
4.4±15%
Dual
10.4±15% Amps
)
Amps
Amps
(After 15mins.)
Safety Devices
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Thermal Protector for
Magnetron,Open at
135ºC
,
Thermal Protector for
Cavity, Open at
150°C
Thermal Protector for
Cavity, Open at
Fuse
(Cartridge Type 8A)
122ºC
Primary Interlock Switch
Door Sensing Switch
Interlock Monitor Switch
Timer
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overalll
Oven
Turntable
Net Weight
Dimensions . . . . . . . . . . . . . 470(W)x373(D)x284(H)mm
Cavity Size.. . . . . . . . . . . . . . . .288(W)x304(
Diameter . . . . . . . . . . . . . . . . . . . . . 262mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
60min
Approx.
D)x195(
17.0Kg.
H)mm
2. SPECIFICATIONS - EM-G400
Rated Power Consumption........ Micro1 650W Grill 1300W
Dual 2950W
Microwave Output . . . . . . . . . . . . . . . . . . . . . . 1 OOOW( Adjustable
through IOOOW
Frequency
Power Supply
Rated Current
Safety Devices
Timer
Overalll
Oven
Turntable
Net Weight
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
............................
. . . . . . . . . . . . . . . . . . . . . . . . . . .
.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2,450MHz ±
230V,50Hz
Micro
Grill
7.6±15%
5.5±15%
Dual 13.1
(After 1
Same
as G200
60min
50MHz
±15%
5mins.)
Dimensions . . . . . . . . . . . . . 47O(W)x373(D)x284(H)mm
Cavity Size . . . . . . . . . . . . . . . . . 288(W)x304(D)x195(H)mm
Diameter . . . . . . . . . . . . . . . . . . . . . 262mm
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Approx.
1 OOW
)
Amps
Amps
Amps
above.
17.5Kg.
3. POWER OUTPUT MEASUREMENT
(1) Prepare
(2) Adjust water temperature to
1000±5g
tap water.
10°C+2ºC.
(3) Pour water into a container made of
borosilicate glass,
190mm
outer diameter
cylinder, maximum 3mm thickness.
(4) Place the container
cavi
ty.
in
the centre of the oven
(5) Set the timer at any position more than one
minute, set the power controller to the“ High”
position, and
close
the door.
(6) Heat the water correctly for 52 and 42 seconds
for 800W and IOOOW respectively.
(7) Take the container out immediately when
heating time
(8) Stir water for making
in
the container.
(9)
Measure
Water temperature rise should be between 8º C to
for
correct
power output.
is
up.
even
water temperature
water temperature.
12ºC
4.PRECAUTIONS AND REPAIR SERVICE TIPS
PRELIMINARY
A.SINCE NEARLY 4,000
VOLTS
EXIST IN
SOME CIRCUITS OF THIS MICROWAVE
OVEN, REPAIRS SHOULD BE CARRIED
OUT WITH GREAT CARE
B.TO AVOID POSSIBLE EXPOSURE TO
MICROWAVE ENERGY LEAKAGE, THE
FOLLOWING PRECAUTIONS MUST BE
TAKEN
Before
(1)
Open and
a
(
>
BEFORE
SERVICING.
the power is applied.
close
door
several
times to make
sure
the primary interlock switch, the door sensing switch,
and the interlock monitor switch
operate
properly.
(Listen for the clicking sound from switches). Make
sure
the interlock monitor switch is
primary interlock switch
opened.
Make
( w
choke
(2)After the
(a)Open
(See
pages 1 and 7).
sure
the perforated
of the door are correctly mounted.
power is applied.
and
close
the door to
is
opened, when the door
screen
see
closed
after the
and the dielectric
if the interlock
mechanism operates properly.
(b)Check
detector and
microwave
confirm
energy leakage with a leakage
the energy leakage is below
5mW/cm2
(3)Do
not
operate
repaired,
(a)Door
(b)The
(c)The
does
hinge is
choke
(d)The door
visible
damage
microwave
NOTE: Always keep the
(e)Make
sure
microwave
the unit until it is completely
if anv of the
not
close
following
conditions exists.
firmly against the cavity front.
broken.
dielectric or the door
is
bent or warped, or there is
seal is
damaged.
any
other
to the oven that may cause
energy leakage.
seal clean
there are no defective parts in the
generating and transmission assembly.
(especially waveguide).
(4)Following
items should be checked after the unit
repaired.
(a)The interlock monitor switch is connected
correctly and firmly.
(b)The magnetron gasket on the magnetron
is
properly positioned.
(c)Wave guide and oven cavity are intact ( no leakage
of
microwave
(d)The door can be properly
energy).
closed
and the safety
switches work properly.
(e)The oven must be stopped when the door
is
opened or the time is up.
The oven must not be operated with any of the above
components
I m
2
removed or bypassed.
is
is
SCIRCUIT
U.K
EM-G2OOEUK
U.K
EM-G4OOEUK
DIAGRAM
230V
L 50Hz N
OVEN CONDITION
DOOR
: OPEN
r - - - - - - - - - - I
BR
NO
SC1
SC2 :
SC3 :
SC4 :
SC5 :
HT :
MT
HAT
TM
BM
GM
L
H
SWI:
PRIMARY INTERLOCK SWITCH
:
DOOR SENSING SWITCH
INTERLOCK MONITOR SWITCH
HEATER ON/OFF SWITCH (IN CONTROL) LB : LIGHT BLUE
MICRO ON/OFF SWITCH (IN COTROL)
THERMAL PROTECTOR FOR CAVITY P : PINK
.
THERMAL PROTECTOR
:
THERMAL PROTECTOR ON DUCT
.
.
TIMER MOTOR
.
.
BLOWER MOTOR
: GEAR MOTOR
: CAVITY LAMP
: QUARTZ HEATER
TIME SWITCH
SW2: POWER SWITCH
1
B-B
BL
MAGNETRON
---------------
I
es
0
I
I
I
---------------
ON
2M-218H(R) / 2M-2~9H(B) 1 1
2~5OOPF/2x15uH
WIRING COLOUR
W : WHITE
ORANGE
0 :
BK : BLACK
WAVEGUIDE BR : BROWN
: YELLOW
Y
BL : BLUE
Please Note for G400.
Capacitar value is
Magnetron is 2m-219 type.
I m
3
6 o
,
FUSE DIODE
HIGH
VOLTAGE
-
The parts marked with
a high voltage which exceeds 250V.
El
@ -
The parts marked with
z
acteristics important for microwave leakage.
When replacing any of these parts use only
manufacturer’s specified parts.
1.2OuF
RE
CTIFIER
El
h,
0
are supplied wlth
have special char-
Figure 2
5.CIRCUIT DIAGRAM
Continental EM-G2OOEES and EM-G2OOESP
Continental E
OVEN CONDITION
DOOR
:
OPEN
,
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I -
mm
I
-------t
L
------------mm
230V
50Hz N
Y
BL
Y
SC1 :
SC2 :
SC3 :
SC4 :
SC5
:
HT :
MT :
HAT :
RL
TM
BM
GM
I
n
;1 I
IR :
SWI:
sw2 :
L------------,,,,,,
COM
R%
0
N”T
BL rg
___________
MAGNETRON 2M-218H(R) / 2
---------------
I I
I
I
I
---------------
~x~OOPF/~XI.~UH
PRIMARY INTERLOCK SWITCH
DOOR SENSING SWITCH
INTERLOCK MONITOR SWITCH
HEATER ON/OFF SWITCH
MICRO ON/OFF SWITCH
THERMAL PROTECTOR FOR CAVITY
THERMAL PROTECTOR
THERMAL CUTOUT ON DUCT
.
.
INRUSH
.
.
TIMER MOTOR
.
BLOWER MOTOR
.
.
TURNTABLE MOTOR
’
CURRENT
ON
WAVEGUIDE
REDUCING
CAVITY LAMP
QUARTZ HEATER
INRUSH RESISTOR 25iJ / 20W
TIME SWITCH
POWER SWITCH
BL
W
HIGH
RELAY
VOLTAGE
I
---------------A-‘------!
I
W
TRANSFORMER
FUSE
DIOD
HIGH
VOLTAGE
WIRING
COLOUR
W : WHITE
0 :
ORANGE
0 -
c
LB : LIGHT BLUE
BK : BLACK
P
: PINK
BR : BROWN
Y
: YELLOW
BL : BLUE
Please Note for
Capacitor value
G400.
is 1.20uF
Magnetron is 2m-219 type.
I I
4
BR
E
RECTIFIER
-
The parts marked with
a high voltage whlch exceeds
The parts marked with
acteristics important for microwave leakage.
When replacing any of these parts use only
manufacturer’s specified parts.
141
25OV.
5~
0
are supplled
have speclal
Figure 2
wlth
char-
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