Sanyo EM-X600S User manual

FILE NO.
SUPPLEMENTOF
SERVICE MANUAL Microwave Oven EM-)(600s (New.zealand)
/
—-------
I)[RI. (” T,4(’[’I..S.Y
Product Code No. 43731475
See the service manual of EM-N102WS(SM-86 OO78)
Foreword except the items described in this service manual.
Read this manual carefully, especially precaution on microwave energy, and follow the procedure strictly.
Careless servicing and testing may expose yourself to the microwave energy leakage. $
1
IPRECAUTIONS
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO
EXCESSIVE MICROWAVE ENERGY
(a)
(b)
(c)
(d)
Do not operate or allow the oven to be operated with the door open.
Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave
source, and make repairs as 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.
Before turning on microwave power for any service test or inspection within the microwave generating compaflments,
check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity, and connections.
Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmis-
sion systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is
released to the owner.
REFERENCE NO. SS-860128

—TABLE OF CONTENTS —
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...1 Test Procedures . . . . . . . . . . . ..3
Power Output Measurement . . .1 Disassembly Instructions .... ...4
Circuit Diagram ....................................2 Exploded View and Parts List.. .....................5-10 –
Overall Circuit Diagram .....11
l. SPECIFICATIONS
Rated Power Consumption
Microwave Output
Frequency
Power Supply
Rated Current
Safety Devices
Timer
Overall Dimensions
Oven Cavity Size
Turn Table Diameter
Effective Capacity of
Oven Cavity
Net Weight
2. POWER OUTPUT
NOTE
(c)
1370W,
900W.
2,450MHz&50MHz.
230V–240V, 50Hz. (D)
6.OAmp.
Thermal Protector, Open at 122°C
for Cavity. (E)
Thermal Protector, Open at 122°C
for Magnetron.
Fuse (Cartridge Type 8A),
Primary Interlock Switch,
Door Sensing Switch and Relay2,
Interlock Monitor Switch.
Electronic Digital, up to
99 min. 99 sec.
550(W) x451(D) x311(H) mm. (F)
375(W) X404(D) x230(H) mm.
360mm.
34 liters.
Approx.20 Kg.
MEASUREMENT (G)
Thepower output specification, 900W on this model is measured
with IEC measurement. Thepower output ismeasured with two(2)
liters water is equivalent to900W in measurement with lEC, when
measured with the following power output.
(A) 1. Fill twotest bowls with eachl Iiter water respectively.
2. Use accurate thermometer and measure each water
temperature respectively.
(B) Place thetwobowls on glass turntable.
1.
2.
1.
2.
1.
2.
3.
Set cooking time to two (2) minutes. (“2 00” appears in
display)
Touch START key and operate oven for exactly two (2)
minutes.
Take out the two bowls at once.
Stir both water with thermometer and measure the water
temperature rise respectively.
Get temperature rise by calculating the difference (water
temperature after cooking minus initial temperature) in
each bowl.
Then calculate average value(t) of both temperature rises
mdegrees centigrade.
Then workout;
Power Output (watt) =70 xAt
Power output shall be in the following range:
Average Microwave
temperature rise Power output
Minimum
10.4”C 728W
Maximum 931W
13.3°C
Power Output will be influenced by line voltage of power
supply. Consequently, correct power output must be
measured within 240VAC +2 volts while unit is operating.
–l–

3. CIRCUIT DIAGRAM
II
1$5:
c’ \L1. L2-650y H
I::-c: !’6;)oFOp F
~
LCAVITY
THERMAL PROTECTOR
~N7 ,,Lf3 ~, ,, OPENSAT122+5C
—. CAVITY
wLIGHT ~,—
w
MAGNETRON
THERMAL PROTECTOR
OPENSAT 122f5<C J
LwBK COM
,@
NO
IK
—
7
[WY? ‘NTEti@’Tc’
wIBLOWER MOTOR Iy
P?Y
wGEAR MOTOR
o4
YJ
k[-1 wHIGH VOLTAGE TRANSFORMER
IL
1
1CONNE\~OR RELAY2 z
$F$ Q
15 El T
13 RELAY 1
II
a
1
STEP DOWN
TRANSFORMER 3
——— 1
I
I
J-
❑’
FUSE—Dl~DE
II
—
IBL
L— F~Ej
CIRCUIT
BOARD
cICONNECTOR
Slol
.1
TOUCH
KEY
BOARD
L
WIRINGCOLOUR
BK BLACK
o.ORANGE
BL BLUE
WwHITE
YYELLOW
RRED
Parts marked w!th th[s sign are supplled with
high voltage exceeding 250V
Parts marked with this sign have special
characteristics Impoflant formlcmwave leakage
When replacing any of these park use only
manufacturers speclf[ed paris
Figure 1ISECONDARYINTERLOCK I
PRIMARY INTERLOCK DOOR
SWITCH MADE. INTERLOCK MONITOR SENSING
SWITCH RELAY 2
SWITCH SWITCH
CONDITION COM COM COM COM
NO NC NO NO
DOOR OPEN .
DOOR CLOSE ●..
–2–

4. TEST PROCEDURES
—
—
–3–

5. DISASSEMBLY INSTRUCTIONS
A. REMOVING BLOWER MOTOR
(Figures 3(Top View) and 4)
(1)Remove screw securing the stay.
(2) Disconnect all lead wires from the blower motor
and H.V. capacitor.
(3) Remove 2screws securing the blower base and
disengage 3hooks from the rear plate of cavity
(Figure 4)
(4) Remove 1screw securing the blower motor with
the blower base.
B. REMOVING MAGNETRON
(Figure 3(Top View))
After removing the blower motor:
(1) Remove duct (msg. intake) and duct (msg.
-exhaust).
(2) Remove 1screw securing the thermal protector.
(3) Disconnect 2lead wires from the magnetron.
(4) Remove 4screws securing the magnetron to the
waveguide.
(5) Take out magnetron VERY CAREFULLY.
NOTES
1. When removing the magnetron from the cavity or
Lwave guide, use aproper care so that the dome of
the magnetron does not hit any adjacent parts of
microwave oven.
2. Make sure that the contact face of the magnetron
gasket is free from any damage or deformation.
3. Adjust the position of the magnetron properly, so
that it correctly sits in place and the magnetron
gasket is in contact with the mounting rim evenly.
L. 4. While holding the magnetron under this condition,
tighten mounting screws or nuts with your fingers
temporarily.
5. Further tighten the screws or nuts with abox
wrench, giving one or two turns to each of the
screws (or nuts) alternatively so that the magnetron
is mounted on to the bracket uniformly.
6. After replacing the magnetron, be sure to check the
microwave energy leakage with aleakage detector
and confirm the leakage is below 5mW/cmZ.
NOTES
When inserting duct (msg. exhaust), overlap the lower
tab of the duct onto the magnetron, at the same time
-. ensure the hook on the duct is properly engage to the
magnetron (See figure 5).
Blower base
Duct (msg. exhaust) \
Figure 3(Top View)
—
Blower Motor ~Y Screws
Figure 4
Screws Upper Hook
,A, ~~~~ Magnetron
‘rF3f
0° /
Duct
(mag exhaust) .’
A
Lower Tab
Overlap onto
magnetron
,–
Figure 5
–4–