ii
FILE No.
A - 64z7\
SERVICE MANUAL MICROWAVE OVEN WITH GRILL EM-G450(New Zealand)
—
.
EM-G451 (Argentina)
New Zealand Argentina
Product Code No.
EM-G450(New Zealand) 43735465
EM-G451 (Argentina) 43735471
FOREWORD
PRECAUTIONS
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID
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 checks on all ovens to be serviced before activating the magnetron or
other microwave source, and make repairs if necessary:
(1) Interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and
other damage), (4) damage to or loosening of hinges and latches, (5) evidence of dropping or
abuse.
c) Before turning on microwave power for any service test or inspection within the microwave
generating compartments, check the magnetron, wave-guide or transmission line, and cavity for
proper alignment, integrity, and connections.
d) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave
generation and transmission systems shall be repaired, replaced, or adjusted by procedures
described in this manual before the oven is released to the owner.
1
I
ENG 030
REFERENCE
No. SM-850051
ii
TABLE OF CONTENTS
AdjustmentProcedures........................................l
Circuit Diagram .................................................... 5
Specifications .......................................................2
Test Procedures and Troubleshooting .................6-12
Power Output Measurement ................................ 2
Disassembly instructions ..................................... 13-14
Precautions and Repair Service Tips ...................2
Exploded View and Parts list................................l5-l9
Oven Control Panel
..............................................3-4
Control Circuit Board ............................................20
~ ‘Vera” circuit ‘iagrams
...................................... 21
CAUTION
MICROWAVE ENERGY
PERSONNEL SHOULD NOT BE EXPOSED TO
THE MICROWAVE ENERGY WHICH MAY RADl-
ATE FROM THE MAGNETRON OR OTHER
MICROWAVE GENERATING DEVICE IF IT IS
IMPROPERLY USED OR CONNECTED. ALL
INPUT AND OUTPUT MICROWAVE CONNEC-
TIONS, WAVE GUIDES, FLANGES, AND GAS-
KETS MUST BE SECURE. NEVER OPERATE
THE DEVICE WITHOUT A MICROWAVE ENER-
GY ABSORBING LOAD AITACHED. NEVER
LOOK INTO AN OPEN WAVE GUIDE OR
ANTENNA WHILE THE DEVICE IS ENERGISED.
1. ADJUSTMENT PROCEDURES
TO AVOID POSSIBLE EXPOSURE TO MICRO-WAVE
ENERGY LEAKAGE, THE FOLLOWING ADJUST-
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 screws securing the lever stopper.
(2) Adjust the lever stopper position so that it is pushed
up and pull forward until there is about zero gap.
2-1. Between the lever and the switch body on
the door sensing switch.
2-2. Between the lever and the switch body
on the interlock monitor switch.
2-3. Between the latch lever and the switch body
on the primary interlock switch.
when the door latch is securely locked.
(3) Tighten the lever stopper screws securely.
(4) Make sure the interlock monitor is closed after
the primary interlock switch opens when the door is
opened very slowly, according to “CHECKOUT
PROCEDURE FOR SWITCHES’ on page 8.
(5) Make sure the interlock monitor is open before
the primary interlock and secondary interlock
switches close when the door is closed very slowly,
according to “CHECKOUT PROCEDURE FOR
SWITCHES” on page 8.
(6) Make sure the microwave energy leakage is below
the limit of the regulation (5mW/cmz) when
measured with a detector. ( All service
adjustments must be made for minimum energy
leakage readings.)
, Lever Stopper
%=!!4
Screw
o
Positions
#-
Door Latch
\
-N
Interlock Moi
Switch
1.
‘1
Il”in
‘T \
I
Primary Interlock
Latch Lever
Switch
/
7itor
I
..
,,
Figure 1
-1-
6
2. SPECIFICATIONS - EM-G450+G451
Rated Power Consumption ........ Dual 2400W
Microwave 1300W
Grill 1100W
Microwave Output ...................... 800W
Frequency .................................. 2,450 MHz * 50 MHz
Power Supply .............................24 OV.5OHz
Rated Current .............................6.15*1 0?40Amps Micro
(After 15mins.)
4.72107. Amps Grill
(After 15mins.)
10.5~1 0% Amps Dual
(After 15mins.)
Safety Devices ........................... Thermal Protector for
Magnetron, Open
at 135”C.
Thermal Protector for
Cavity, Open at 150°C.
Thermal Protector for
Heater, Open at 122”C.
Fuse (Cartridge Type
8A)
Primary Interlock Switch
-1
Door Sensing Switch
w
Interlock Monitor Switch
Timer .......................................... Electronic Digital
90min x 3 Stages
Overall Dimensions .........500(W) x373( D)x322(H)mm
Oven Cavity Size .............
304(W) x304( D)x230(H)mm
Turntable ~ameter ................~....275mrn’
Net Weight ..................................Approx.
3. POWER OUTPUT MEASUREMENT
(1) Prepare 1000f5g tap water.
17.5Kg.
(2) Adjust water temperature to 10°Cf20C.
(3) Pour water into a container made of
borosilicate glass, 190mm outer diameter
cylinder, maximum 3mm thickness.
(4) Place the container in the centre of the oven
cavity.
(5) Set the heating time for 52 seconds at full
power and start the oven.
(6) Take the container out immediately when
heating time is up.
(7) Stir water for making even water temperature
in the container.
(8) Measure water temperature.
Water temperature rise should be between 8°C to 12°C
for correct power output.
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 SERVICING.
J1\Before the Dower is armlied.
(a)Open and 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 closed after the
primary interlock switch is opened, when the door is
opened. (See pages 1 and 8).
(b)Make sure the perforated screen and the dielectric
choke of the door are correctly mounted.
J2)After the DO
wer is armlied.
(a)Open and close the door to see if the interlock
mechanism operates properly.
(b)Check microwave energy leakage with a leakage
detector and confirm the energy leakage is below
5mW/cmz.
4
j31Do not ooerate the u
nit until it is comdetelv
reDaired, if anv of the followina conditions exists.
(a)Door does not close firmly against the cavity front.
(b)The hinge is broken.
(c)The choke dielectric or the door seal is damaged.
(d)The door is bent or warped, or there is any other
visible c’zrnage to Ihe own thd may cause
microwave
Ci-,5rCjy !eakdge.
NOTE: Always keep the seal clean
(c)Make sure there are no defective parts in the
microwave generating and transmission assembly.
(especially waveguide).
(f)Make sure there are no defective parts in the inter
lock mechanism.
j4)Followina items should be checked after the unit is
reDaired.
(a)The inter[ock 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 energy).
(d)The door can be properly closed and the safety
switches work properly.
(c)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 removed or bypassed.
-2-
ii
5. OVEN CONTROL PANEL - New Zealand
Notes :
A “beep tone” sounds
when a “pad” on the
control panel is
touched, to indicate a
setting has
been
entered.
When setting the
controls you can keep
your finger on a key
until the desired set-
ting is reached.
I
1. DISPLAY WINDOW.
2. INDICATORS:
Auto / Def. / Dual / Grill -
Cooking mode indicators.
Time / Start/ Kg, LB, OZ -
A flashing indicator that
prompts you to enter the
desired cooking time, start the
oven, or enter food weight.
80, 150,300,450,700,850
Power level indicators.
DIRECT ACCESS
8
@@ ‘“a
@@ “;’s
“[-] H17
dim
I@’29
GzKD
—
—Timer
v
Down
Weight —}
A
up
KEYS:
3. Clock Set.
4. Direct Access menu keypad.
5.
Auto Defrost.
6. Time adjust for Auto
Defrost and Direct Access
7. Grill only.
8. Dual (150W).
9. Dual (450W).
-3-
---M
--w
----El
---El
--PI
---ml
‘F
L
--PI
--m
.
--
Figure 2
,
10. Power.
11. Delay Start.
12. Clear/ Stop.
13. Start.
14. Time and Weight set.
,
EM-G450
.-
5. OVEN CONTROL PANEL - Argentina
Notes :
A “beep tone” sounds
when a “pad” on the
control panel is
touched, to indicate a
setting has been
entered.
When setting the
controls you can keep
your finger on a key
until the desired set-
ting is reached.
1. DISPLAY WINDOW.
•1
2—
u
1
u
3
E-Km @m-El
2. INDICATORS:
Auto /
Def. / Dual / Grill -
Cooking mode indicators.
Time / Start/ Kg, LB, OZ -
A flashing indicator that
prompts you to enter the
desired cooking time, starl the
oven, or enter food weight.
80, 150,300,450,700, 850
Power level indicators.
~PI-G45I
3.
4.
5.
6.
7.
8.
9.
Clock Set.
Direct Access menu keypad.
Auto Defrost.
Time adjust for Auto
Defrost and Direct Access
Grill only.
Dual (150W).
Dual (450 W).
-4-
1
l---m
Figure 2
10. Power.
11. Delay Start.
12. Clear / Stop.
13. Start.
14. Time and Weight set.
i
6.CIRCUIT DIAGRAM
OVEN CONDITION
EM-G451+G450 NZ and ARG.
DOOR : OPEN
Scl :
SC2 :
SC3 :
HT :
MT :
HAT :
RL1 :
RL2 :
RL4 :
BM :
GM :
L:
H:
TOUCH
KEY
BOARD
,&
r– ‘– –
Slol
I
I
I
I
1
RL4
I
BR
230V
HAT
L
50Hz N
t
----- -- ----
t
RK
w
1
I
1
!
I
I cl
-. .
1
I
I
1
1
1
1
I Ill
J4a-f
I
BK
II
1--------- -----
sLQ-iHTQJdl=”‘
L1,L2 = 650uH
Cl =0.22uF
C2,C3 = 4700PF
R=1ML2
i
S1
I
ST
Y
v
I
I
w
I
RL1
——q
;W
I ~
1 .
L——
1
I
I
I I
Y
I
1-
3
I
I
UI
1
1
i
CONTROL i
I
CIRCUIT I
I
BOARD 1
I
I
I
-—.
1,
Y
1’
‘i?~
I
BK
RL21 I 1
1
01
I
L_–l I
I
w
11
I
I 1
0
L— ———d
G
Y
Y
NO v
SC2
Y
.- ------- ------- ------- ------
1
COM
HIGH VOLTAGE TRANSFORMER
1
1
@
❑l ~~ ;
‘Y- --+-------”i--’
@~ MAGNETROii-2ti:2i8H(R)
---- ---- ---- ---
1
I
1
T
1
HIGH VOLTAGE
1
1
L!
I
; HIGH VOLTAGE CONDENSER
r
----- ----- -----
‘d
2x500 PF/2xl .5uH
PRIMARY INTERLOCK SWITCH
DOOR SENSING SWITCH
INTERLOCK MONITOR SWITCH
THERMAL PROTECTOR FOR CAVITY
THERMAL PROTECTOR ON WAVEGUiDE
THERMAL PROTECTOR FOR HEATER
MAIN RELAY
POWER CONTROL RELAY
HEATER RELAY
BLOWER MOTOR
GEAR MOTOR
CAVITY LAMP
QUARTZ HEATER
BL
4
RECTIFIER
O : ORANGE
o
~
-The F.W5 ra+ti !.%!7 @ b“, SPKM cM.,-
LB : LIGHT BLUE
=e~ hwl !3.-w3 leaka~c,
~fi r@aOrq~V.1W PWSUS~only
BK : BLACK
r,ao.ti.,~~~-W w%.
P : PINK
BR : BROWN
Y : YELLOW
BL : BLUE
Figure 3
-5-
iii
7. TEST PROCEDURES AND TROUBLESHOOTING
—
.
3
—,
CAUTION
t“
,.
Filament Windinqs
- DISCONNECT THE POWER SUPPLY
7H
1,.
CORD FROM THE WALL OUTLET
WHENEVER REMOVING THE CABINET
FROM THE UNIT. PROCEED WITH THE
TESTS ONLY AFTER DISCHARGING
THE HIGH VOLTAGE CAPACITOR AND
REMOVING THE LEAD WIRES FROM
THE PRIMARY WINDING OF THE HIGH
VOLTAGE TRANSFORMER. ( See
Figure 4 )
A. TEST PROCEDURE
COMPONENT
MAGNETRON
-IIGH
JOLTAGE
tRANSFORMER
gs
CHECKOUT PROCEDURE
1) Check for resistance
: Across the filament terminals of the
the magnetron with an ohmmeter on Rxl scale.
F=l
2) Check for resistance : Across the filament terminals of
the magnetron and the chassis ground with an ohm-meter
on highest scale.
R
Figure 6
1) Measure the resistance:
With an ohmeter on
Rxl scale.
a. Primary Winding ;
b. Filament Winding ;
c. Secondary Winding ;
2) Measure the resistance :
With an ohm-meter on highest scale.
a. Primary winding to ground ;
b. Filament winding to ground;
Figure 7
Figure 4
RESULTS
Normal reading :
Less than 1 ohm.
Normal reading :
Infinite
ohms
Normal readings :
Approximately 1.6 ohms
Less than 1 ohm.
Approximately 92 ohms.
Normal readings :
Infinite ohms
Infinite ohms
Note : Remove varnish of
measured point.
-6-
o
PnMDnNFNT I CHECKOUT PROCEDURE I
RESULTS
““,... v. . . . . .
-.
1) Measure the resistance : Across two terminals with an
Normal reading :
ohm-meter on highest scale
Momentarily indicates several
ohms, and gradually returns
/
/
to 10 Meg-ohm.
{IGH VOLTAGE
;APACITOR
o
Abnormal reading :
ncluding
Indicates continuity or 10MQ
ILEEDER
from the beginning.
IESISTOR
Figure 8
Measure the resistance : Across two terminals with an
Normal reading :
ohm-meter on its highest scale.
Indicates over 10MQ in one
direction (forward direction)
and infinite ohms in the
/
/
reverse direction, using meter
G)
which is provided with a 9-volt
battery.
HIGH
,
NOTE
VOLTAGE
,.’
Some digital meters may
DIODE
show over even in a forward
direction because low
measuring voltage of meter
does not allow the meter
current to pass through
Figure 9
the high voltage diode.
Abnormal reading:
Indicates continuity or infinite
ohms in both directions.
Measure the resistance : Across two terminals with an
ohm-meter on its highest scale.
Normal reading :
/
J
Indicates continuity.
o
P
0.,
Abnormal reading :
HV FUSE
---
Indicates infinite ohms.
-..
-..
..
..
..
‘.
Figure 10
Measure the voltage : Between test points TP-1 ,TP-2,TP-3
CONTROL
and ground or between TP-4, and TP-5. ( See
Test TP-1
TP-2 TP-3 TP-41
CIRCUIT
control circuit board on page 20 )
point
TP-5
BOARD
NOTE
COMPLETE
Voltag~
-5V -12V
-30V 2.OV
Proceed with the check of the step down transformer, to
DC DC
DC AC
see if any one of the measured values is different from the
specified values.
-7-
TOUCH KEY
BOARD
UIILW1. W”V * ..vv b-w..-
Measure the resistance between terminals of FPC
connector after removing it from S101. ( See Figure
11).
NOTE
- When reconnecting the FPC
connector, make sure
the holes on the connector are properly inserted in
hooks of the plastic fastener in S101.
MATRIX CIRCUIT FOR TOUCH
KEYBOARD FPC CONNECTOR
Slol IOP
5
4
3 2
1
A Df-~ JACKET
;:::’
GRILL
0
“
POTATO
6 ~
POWER
G
@ /
CHILLEC
150
MEAL
7
UP
G
+
RICEI
450
PASTA
8
DOWN
FRESH
—
VEG.
9
START
FROZEA
LIQUID vEG.
10-
u
-------
[
I
When
I
When not
I
touched
Value
1 J
Less
than More than
1K Ohms
1
MEG Q
When checking the “START” key, con-
nect Ohmmeter as illustration below.
TOP
Ohm-meter
t
n
u
TERMINALS OF FPC CONNECTOR
Figure 11
CHECKOUT PROCEDURE FOR SWITCHES
Disconnect the lead wires from the switches and check the continuity of the switches, connecting an ohm-meier to its
terminals.
SWITCH
Primary Interlock
Door Sensing
Interlock monitor
CHECKOUT PROCEDURES
Connect an ohm-meters leads to terminals “COM”
and “NO” of switch
Connect an ohm-meters leads to terminals “COM”
and “NC” of switch
DOOR OPEN DOOR CLOSE
CAUTION : After checking the switches, make sure that the interlock monitor switch is properly connected according to
the CIRCUIT DIAGRAM on page 5.
-8-
B. TROUBLESHOOTING
STEP
SEQUENCE
RESULT
+
-.—.
I
(1) PROBLEM
I
No display or mis-display in
I
the display window by touching
I
the keys.
@
@
I
1
@
~1
o
volt Check continuity of FUSE,
I
a
Replace it if
1
Thermal Protector
for cavity,
necessary
I
Thermal Protector for
1
Runs
magnetron and AC Power
I
@
Cord.
I
I
If the fuse has blown see
I
“D. REMOVING FUSE” on
Check 230V AC power
I
page 13
I
supply of connector S1
I
between Pin3 and Pin 5
:
PROBLEM
after removing connector
I
l-b
S1 from control circuit
230 Volt
I
board.
I
I
b
I
@
@
I
check ~;istance
Correct seating of
Qo
o
(pJ)
;0
connector S101 or
●
Normal control I
::’J
replace control circuit
Runs
Control
circuit board
I
Circuit Board
00
board.
Each::ltage
I
Q-J
I
I
Check resistance of
o
0
touch keyboard
h
(See page 8 )
@
00
u
Resistance
Replace touch
*
is correct
keyboard
Normal touch ~ Runs
Check power supply voltage
ON or OFF
keyboard
on control circuit board.
I
(See page 7 )
I
I
@—
Voltage Replace control
incorrect
circuit board.
circuit board
I
I
m
.
‘J
STEP
SEQUENCE
RESULT
(2) PROBLEM
I
I
Oooking operation will
I
7ot start.
I
3. Thermal protector
for Cavity and Magnetron
IQ-J
Check continuity of connector
S102 between pins with the
door closed after removing
connector S102 from control
cct board.
I
(3) PROBLEM
Oven does not heat up
J
a
‘~
I
I
I
1
I
I
m
-@J)-/
Contact OK
Continuity OK
Check contact
of connector S102
F’oorContac~o%’~;@
Runs
bfiiil
I
@)
I
I
u’
No Continuity
Adjust or Replace
Normal Door ~
Door Sensing Switch
Sensing Switch I
I
Runs
I
I
@
I
I
I
Touch START key and measure
II
I
voltage between the two wire
b~
I
@
I
leads from primary windings of
m
@
UI
H.V transformer after removing
I
*
*
&
the wire leads from terminals of
o
volt
Replace Control
I
Normal Control
H.V transformer
Circuit Board
I
\
Cct. board
I
Runs
I
iii
CA
n
w
1-
Cn
I
u
1
Q
?$
---
@’@’@
--
--1-------- +------- -+ ----
1
-.
#
-11-
STFP
SEQUENCE
RESULT
-.—.
1
;5) PROBLEM
I
1
rhe magnetronoperateson
I
ligh level when a lower cook
1
>ower is selected.
D
No problem
O230
v
Measure water
a
temperature rise
‘n “;
o volt
exactly.
(9
.
e)
“o
I
c ,.Z,m
&
. .. . .
I
..-
1
am “ ‘~
GiEm
I
Calam
J&e
I
1
CID(.23
.... ..
CC?)(ZD
Touch START key and measure
voltage between leads for
primary winding of H.V
transformer
O230
Set power level
after removing the wire leads from
/
@
at low.
terminals of H.V transformer.
●
230 Volt
Replace control
Normal control I
circuit board. circuit board
I
I
Runs
I
1
(6) PROBLEM
I
Unit does not heat up even
I
I
f display counts down when
o
1
key is touched
for
m
I
“Grill Cooking”.
I
I
a
@
I
@
fil
I
Replace control
*
I
Resistance.
circuit board.
Normal control
I
circuit board
I
Runs
I
Check resistance of
Approx?;;[~~,5 I c6~
Resistance
@>~@
Replace Heater
measured over
Incorrect.
Runs
both tubes.
Normal Heater
I
I
I
\
I
,
ii
8.DISASSEMBLY INSTRUCTIONS
- OVEN MUST BE DISCONNECTED FROM Electri-
cal OUTLET WHEN MAKING REPLACEMENTS,
REPAIRS, ADJUSTMENTS, AND CONTINUITY
CHECKS BEFORE PROCEEDING WITH ANY REPAIR
WORK AFTER DISCONNECTING. WAIT AT LEAST 1
MINUTE, UNTIL THE CAPACITOR IN THE HIGH VOLT-
AGE AREA HAS
FULLY DISCHARGED.
-
WHEN REPLACING ANY DOOR MICRO SWITCH,
REPLACE WITH THE SAME TYPE SWITCH SPECI-
FIED ON THE PARTS LIST.
A. REMOVING PRIMARY INTERLOCK SWITCH.
DOOR SENSING SWITCH AND INTERLOCK
MONITOR SWITCH
(See Figure 1 on page 1 and Figure 12 on this page)
(1) Remove 2 screws securing the lever stopper.
(2) Disconnect all lead wires from the primary interlock
switch,
door sensing switch and the interlock monitor
switch
(3) Ease away the retaining clips holding the Primary
interlock switch onto the lever stopper and remove.
(4)
Remove the door sensing switch by reference to the
step (3).
(5)
Remove the interlock monitor switch by reference to
step (3).
(6) Make the necessary adjustment, and make microwave
energy leakage check according to”1. ADJUSTMENT
PROCEDURES” on page 1. After the switch is
replaced with a new one, check proper operation of it
according to “CHECKOUT PROCEDURE FOR
SWITCHES on page 8.
I
LEVER STOPPER
MICRO
RETAINING
CLIPS
Figure 12
Interlock Switch Replacement - when replacing faulty
switches, be sure switch retaining clips are not bent,
broken or otherwise deficient in their ability to secure
the switches in place.
C. REMOVING MAGNETRON
(See exploded view on page 16)
(1) Remove the antenna complete according to
B. REMOVING THE ANTENNA.
(2) Disconnect the 2 lead wires from the magnetron.
(3) Remove 1 screw securing the duct to the
magnetron, and take out the duct.
(7) Remove 4 screws securing the magnetron to
the waveguide.
Take out the magnetron VERY CAREFULLY.
NOTES
- When removing the magnetron, make sure that its dome
does not hit any adjacent parts, or it may be damaged.
- After replacing the magnetron, be sure to check the
microwave energy leakage with a leakage detector and
confirm the leakage is below 5 mW/cmz.
D. REMOVING FUSE
(A) Remove the 8A fuse with a screwdriver.
- When replacing the 8A
fuse, be sure to use an exact
repair part
- If the 8A fuse blows immediately, check the primary
interlock switch and the interlock monitor switch (termi “
nals “C” and “NC”) according to “CHECKOUT
PROCEDURE FOR SWITCHES” on page 8, and make –
sure to check the microwave energy leakage according
to “l. ADJUSTMENT PROCEDURE” on page 1, when
the primary interlock switch or the interlock monitor
switch is replaced.
4
- If the primary interlock switch is defective, replace not
only the primary interlock switch but also the interlock
monitor switch.
Then install a new 8A fuse.
- If the primary interlock switch and the interlock monitor
switch (terminals “C” and “NC”) operate properly,
determine which of the following is defective: blower
motor, turntable motor, high voltage transformer, high
voltage capacitor, high voltage diode or magnetron.
- If the hiah voltaae diode is defective , re~lace not
onlv the hiah voltaae diode but also the fuse diode.
B. REMOVING THE ANTENNA
(See exploded view on page 15)
(1). Remove the screw securing the cavity cover to the
cavity.
(2). Remove the antenna complete by slightly bending it
so the retension clips holding it slide out of the cavity
wall.
-13-
E. REMOVING DOOR
H. REMOVING TURNTABLE MOTOR COVER
(Refer to Figures 13 and
14 below)
(1) Remove the 2 screws securing the upper hinge.
(2) Tilt the top of the door toward you.
(3) Lift up the door to remove it.
NOTES
.
- After replacing the door, be sure to check that the
primary interlock switch, door sensing switch and the
interlock monitor switch operate normally. (See
page 1).
- After replacing the door check for microwave energy
leakage with a leakage detector.
Microwave energy leakage must be below the limit of
5mW/cmz.
F. DISASSEMBLING DOOR
( See exploded view on page 18)
(1) Insert a thin flat blade screwdriver between the
choke dielectric and the door mainframe and lift
up the choke dielectric to release the hooks one
by one.
7
(2) To remove door cover, remove the 2 screws
securing the door cover to the door
mainframe
—.
(3)Insertathinflatbladescrewdriverbetweenthe
door cover and door mainframe and release the
hooks one by one.
(4) To detach the glass door panel, insert a thin fiat
blade screwdriver between the door panel and
door cover and release the clips one by one.
NOTES
- The choke dielectric, the glass door panel and the
door cover may be d?m~ged vd%n they are removed.
When re-installing them, replace them with new ones
if they are damaged.
- After installing the door in place, check icr
ii-I:G :i:z.:
energy leakage with a leakage detector.
Microwave energy leakage must be below the limit of
5mW/cmz.
G.
CHANGiNG POWER SUPPLY CORD
(See exploded view on page 16)
(1) Removing the earthing screw.
(2) Remove the power supply cord from the terminal
of PCB complete.
(3) Remove power cord from cavity assembly by
lifting cord bush, moving it to the left and pulling it
away from cavity rear plate.
(4) Install the new power supply cord with the
reverse procedure of above (1) to (3).
WARNING
For changing the power supply cord, never use parts
other than the following :
Part Name : Power Supply Cord Assembly
(1) Turn the unit and cut the 6 joints of the bottom
plate and the motor cover using diagonal pliers
(nipper). (See Figure 13)
(2) Seperate the motor cover and the bofiom plate.
NOTES
- Bend the cut joints inside slightly for safety and be
careful of the sharp edges.
RE-INSTALL :
(1) Rotate the motor cover through 180”.
(2) Insert the edge of the motor cover into the tab on
the bottom plate.
(3) Secure the motor cover by screwing it to the
bottom plate (See Figure 14)
Use screw 411 1565502 (not supplied with oven)
Inserl screw here to
Tabsfitinto
retaininglugs,
Figurel 4
Part No: 6171806519’ -
-14-
9. EXPLODED VIEW AND PARTS LIST
CAVITY PARTS
6
10 –
9
2
\
.m
w
c1
12
Key
No.
1
‘2
3
4
4
5
6
7
8
9
10
11
11
12
13
\
“m
EM-G450+G451
Part No.
6171671520
411 1565601
6171533989
6171696844
6171829598
6171239928
4110016005
6170805315
6171444476
6171552386
6171671421
6171696851
6171773156
6171698930
4120375901
Description Q’ty
Cabinet
1
SCRTPGPAN+F+S 4x1O 6
Thermostat, Cavity H150”C
1
Cavity (NZ)
1
Cavity (Arg)
1
Gear Motor
1
SCRS-TPGPAN4X8
2
Special Washer
1
Turntable Shaft
1
Roller
1
Glass Tray
1
Antenna Complete (NZ) 1
Antenna Complete (Arg)
1
Cavity Cover
1
6
2
[
Key
No.
14
15
16
17
18
19
20
21
22
SCR TPG TRS 4x6K
I 1 I
-15-
21
/
22
Part No. Description
6171670325 Heater Bracket
6171670301 Heater Ass’y
6171670356 Reflective Plate
6171534917 Thermostat, 122°C
6171670349 Heat Insulation Plate
6171670431 Duct
6171696875 Frame Rear Plate
6171662153 Cook Net
6171696981 Cook Net
~
1
1
1
1
1
1
1
1
1
SWITCHES AND MICROWAVE PARTS
17+
1
\
.
~4
N<
o
...
......
..
......
......
:.”....
......
Q
Ii: .K” i ?
,ey
~
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
—
-)
EM-G450+G451
Part No.
4110105600
4111565601
411 1565502
6171806519
6171670462
6171670417
6171622041
6171224085
6171717730
6171670561
6171813821
6171670592
4150025005
6171121025
6171670424
6171241181
w
“ ‘wJ
Description
SCREVRPAN3X6
SCRTPGPAN+F+S 4X1O
SCRS-TPGPAN+F+S4X1 o
PowerSupplyCord
Terminal Cct Board
Space Partition
Capacitor Band
Capacitor l.2uF
DiodeAss’y
LeadWireAss’y
HV Fuse
Blower Motor
Magnetron
Fan
Duct
Latch Lever
J’ty
1
9
4
1
1
1
1
1
1
1
1
1
1
1
1
1
t
14
:ey
~
17
18
19
20
21
22
23
--2=’
&
Q
\
\
,,.-
,
“K
8
f-..
t’ -..
-.. “=.y9 ‘3
11+*
-..
..<
-..
-.
-..
-.. ,
““k ,~
3
6
4
7
Part No. Description Q’ty
6171675627
Lever Stopper
1
6171670523
Door Sensing Switch
1
6171676839
Interlock Monitor Switch
1
6171670523
Primary Interlock Switch
1
6171493009
Lamp 250V 25W
1
6171193480
Lamp Socket
1
6171536225 Thermostat Magnetron 135aC
1
16-
MICROWAVE PARTS
P-n 6.+
7
--1
EM-G450+G451
{ey
No.
1
2
3
4
5
6
7
4
Part No.
Description
Q’ty
6171670615
6171563658
6171671438
_—— —.
6171445435
6171667493
411 1565601
Transformer
1
Special Screw
2
Bottom Plate
1
Gear Motor Cover 1
Foot Cushion Assembly
4
Bottom Hinge 1
SCR S-TPG PAN+F+S
4x1 O 3
i
-.
-17-
DOOR PARTS
3
\
-)
J
EM-G450+G451
Key I
Part No.
t
No.
1
6171806434
1
6171847963
2 6171696806
3 6171696790
.
4
5
6
7
8
6171696813
6171670189
6171671292
617101 1487
617101 1494
411071 9104
‘w
‘“%
-=.
2
8’
1
Description
Door Cover (NZ)
Door Cover (Arg)
Glass Door Panel
Door Main Frame(Supplied
with inner Door Panel)
Plastic Inner Door Panel
Hinge
Choke Dielectric
Door Latch
Spring
SCR TPG FLT 3x8
Q
-
Y
1
1
1
1
1
1
1
1
2
.
6171806441 Door Ass’y (NZ) 1
.
6171880847 Door Ass’y (Arg)
1
-18-
i
CONTROL PANEL PARTS
4
1
\
2
J
EM-G450+G451
1
1
2
3
4
5
6
7
Part No.
6171806465
6171847819
6171670509
6171671353
6171806502
6171671384
6170809559
411 1565502
,
A
o
/
1’
/
Description
Control Sheet (NZ)
Control Sheet (Arg)
Touch Keyboard
Control Frame
P.C. B Complete
Door Release Lever
Spring
SCRS-TPGPAN+F+S4X1 c
1
1
1
1
1
1
1
1
Parl No.
6171806410
6171847819
6171807448
6171833058
Description
Operating Instructions (NZ)
Operating Instructions
(Arg)
Cation Box
Carton Box
I
my
1
1
1
1
‘These items not illustrated
-19-
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
-
1
-
2
-
3
-
4
-
5
-
6
-
7
-
8
-
9
-
10
-
11
-
12
-
13
-
14
-
15
-
16
-
17
-
18
-
19
-
20
-
21
-
22
-
23
-
24
Ask a question and I''ll find the answer in the document
Finding information in a document is now easier with AI
Related papers
Other documents
-
Garland EM-C180 User manual
-
Kenmore 767.8510000 Owner's manual
-
-
Goldstar MV-1155W Owner's manual
-
-
-
Sears 721.88502800 Owner's manual
-
LG LMV2053ST Owner's manual
-
-