Download SERVICE MANUAL SUPPLEMENT for Model EM

SUPPLEMENT OF
SERVICE MANUAL
Microwave Oven
EM-C160US
SERVICE MANUAL SUPPLEMENT
for Model
EM-S85M
SERVICE MANUAL
Microwave Oven
File No:
EM-S85M
Microwave Oven
PRODUCT CODE NO. 437-453-00
See the Service Manual of EM-C180US(SM-640179)
except the items described in this Service Manual.
CAUTION
Product Code No: 437 433 03
WARNING TO SERVICE TECHNICIANS
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING
CAUTION
SERVICING TO AVOID POSSIBLE
EXPOSURE TO
WARNING
TO
SERVICE
TECHNICIANS
EXCESSIVE
MICROWAVE
ENERGY
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING
(a) Do not operate or allow the oven to be operated with the door open.
SERVICING
AVOID
POSSIBLE
EXPOSURE
TO or other
(b) Make the following safety
checks on allTO
ovens
to be serviced
before activating
the magnetron
microwave source, and make EXCESSIVE
repairs as necessary:
MICROWAVE ENERGY
(1)Interlock operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and other
(a) Do (4)
not damage
operate ortoallow
the oven toofbe
operated
the door
damage),
or loosening
hinges
andwith
latches,
(5)open.
evidence of dropping or abuse.
(c) Before
turning
on
microwave
power
for
any
service
test
or
inspection
within the
generating
(b) Make the following safety checks on all ovens to be serviced before activating
themicrowave
magnetron or
other microwave
compartments,
check
the
magnetron,
wave
guide
or
transmission
line,
and
cavity
for
proper
alignment,
source, and make repairs as necessary:
integrity,
connections.
(1)and
Interlock
operation, (2) proper door closing, (3) seal and sealing surfaces (arcing, wear, and other damage),
(4) damage
to or loosening
of hinges andinlatches,
(5) evidence
of dropping
or abuse.
(d) Any defective
or misadjusted
components
the interlock,
monitor,
door seal,
and microwave generation
and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual
(c) Before turning on microwave power for any service test or inspection within the microwave generating compartments,
before the oven is released to the owner.
check the magnetron, wave guide transmission line, and cavity for proper alignment, integrity, and connections.
(e)(i) A microwave leakage check to verify compliance with the Federal performance standard should be
(d) Any on
defective
misadjusted
in the
interlock,
monitor,
door seal, and microwave generation and transmisperformed
each or
oven
prior to components
release to the
owner.
(For
U.S.A)
-sion systems
shall
be repaired,
or adjusted
by Canadian
proceduresRegulation,
described in HEALTH
this manual
before
the oven is
(e)(ii) A microwave
leakage
check
to verifyreplaced,
compliance
with the
AND
WELFARE,
released
to thebe
owner.
SOR/79-920
should
performed on each oven prior to release to the owner. (For CANADA)
(e)(i) A microwave leakage check to verify compliance with the Federal performance standard should be performed on each
REFERENCE NO.SM-640180
oven prior to release to the owner. For U.S.A.
(e)(ii) A microwave leakage check to verify compliance with the Canadian Regulation, HEALTH AND WELFARE,
# EM-S85M
(02/05)
SOR/79-920 should be performed on FORM
each oven
prior to release
to the owner. For CANADA
REFERENCE NO. SM - 860234
-- i --
-- 1 --
2. SPECIFICATIONS
4. PRECAUTIONS AND REPAIR SERVICE TIPS
PRELIMINARY
Rated Power Consumption . . .
Microwave Output . . . . . . . . . .
Frequency . . . . . . . . . . . . . . . .
Power Supply . . . . . . . . . . . . .
Rated Current . . . . . . . . . . . . .
Safety Devices . . . . . . . . . . . .
1260W.
A. SINCE NEARLY 2,000 VOLTS EXISTS IN SOME
850W.
CIRCUITS OF THIS MICROWAVE OVEN, REPAIRS SHOULD
2,450MHz±50MHz.
BE CARRIED OUT WITH GREAT CARE.
120V, 60Hz.
B. TO AVOID POSSIBLE EXPOSURE TO MICROWAVE ENEGY
11.1 Amp.
LEAKAGE, THE FOLLOWING PRECAUTIONS MUST BE
Thermal Fuse open
o
TAKEN BEFORE SERVICING.
at 167 C for Cavity
Thermal Protector open
(1) Before the power is applied :
at 122oC for Magnetron
(a) Open and close door several times to make sure the primaFuse (Cartridge Type 15A)
ry interlock switch, the interlock monitor switch and the door
Primary Interlock Switch
sensing switch operate properly. (Listen for the clicking
Secondary Interlock Switch
sound from the switches.) Make sure the interlock monitor
Interlock Monitor Switch.
switch closes after the primary interlock switch is opens
Timer . . . . . . . . . . . . . . . . . . . 60 min.
when the door is opened.
Overall Dimensions . . . . . . . . . 525(W) x 427(D) x 283(H)
(See pages 1 and 6)
mm.
(b)
Make sure the perforated screen and the choke dielectric of
Oven Cavity Size . . . . . . . . . . . 350(W) x 371(D) x 208(H)
the door are correctly mounted.
mm.
Turn Table Diameter . . . . . . . . 340mm.
(2) After the power is applied :
Effective Capacity of
(a) Open and close the door to see if the interlock mechanism
Oven Cavity . . . . . . . . . . . . . . 25 liters.
operates properly.
Net Weight . . . . . . . . . . . . . . . Approx. 16kg.
(b) Check microwave energy leakage with a leakage detector
and confirm the energy leakage is below 5 mW/cm2.
(3) Do not operate the unit until it is completely repaired, if any
3. POWER OUTPUT MEASUREMENT
of the following conditions exists:
(a) Door does not close firmly against the cavity front.
NOTE
The power output specification, 850 W on this model is (b) The hinge is broken.
measured with IEC measurement. The power output is (c) The choke dielectric or the door seal is damaged.
measured with two (2) liters water is equivalent
(d) The door is bent or warped, or there is any other visible damto 850 W in measurement with IEC, when measured with
age to the oven that may cause microwave energy leakage.
the following power output.
NOTE : Always keep the seal clean.
(e) Make sure there are no defective parts in the microwave
(A) 1.Fill two beakers with one liter of tap water respectively
generating and transmission assembly. (especially wave2.Use accurate thermometer and measure each water
guide).
temperature respectively.
(4) The following items should be checked after the unit is
repaired :
(B) Place beakers side by side in the centre of the glass tray.
(a) The interlock monitor switch is connected correctly and firm(C) 1.Set the timer at any position more than 2 minutes.
ly.
2.Heat the water correctly for 2 minutes.
(b) The magnetron gasket on the magnetron is properly posi(D) Take the beakers out, immediately stir the water and meationed.
sure the water temperature respectively.
(c) Waveguide and oven cavity are intact (no leakage of
(E) 1.Calculate the temperature rise of water in each beaker.
microwave energy).
2.Then calculate the average value of two temperature
(d) The door can be properly closed and the safety switches
rises.
work properly.
3.Output power can be calculated by the equation;
(e) The oven must be stopped when the door is opened or the
Power Output (W) = 70 x Dt
time is up.
Where Dt is an average temperature rise in degrees
Centigrade.
(F) Power Output shall be in the following range :
AverageTemperature Rise Power Output
The oven must not be operated with any of the
693W
Minimum
9.9oC
above components removed or bypassed.
Maximum
12.7oC
889W
(G) Power Output is affected by the line voltage under load.
For correct Power Output measurement, the line voltage
under load must be 120± 2volts.
-- 2 --
5. CIRCUIT DIAGRAM
NOTE : All component have special characteristics for safety and must be replaced using parts listed in this manual.
All service on M/W ovens should be performed by a qualified technician using approved testing equipment.
symbol.
Customers should not attempt replace component marked with a
-- 3 --
6. TEST PROCEDURES AND TROUBLESHOOTING
--
4 --
--
5 --
--
6 --
--
7 --
7. DISASSEMBLY INSTRUCTIONS
--
8 --
--
9 --
--
10 --
8. EXPLODED VIEW AND PARTS LIST
CAVITY PARTS
NOTE : All component have special characteristics for safety and must be replaced using parts listed in this manual.
All service on M/W ovens should be performed by a qualified technician using approved testing equipment.
symbol.
Customers should not attempt replace component marked with a
Key
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
Part No.
Description
617 186 2072
411 082 5201
411 160 6007
617 182 7675
411 160 6106
617 224 3467
617 150 2657
411 010 5808
617 138 5601
617 221 6096
411 011 0802
617 180 6137
411 089 2500
Cabinet
SCR TPG TRS 4 x 10 Z1
SCR TPG TRS + SRT 4 x 10 Z1
Power Cord
SCR S-T PAN 4 x 10 Z1
Oven Cavity (Not Service Part)
Gear Motor
SCR EVR PAN 4 x 10 Z1
Bottom Plate (Not Service Part)
Plastic Foot with Canoe Clip
Bolt Hex + SW + W 5 x 14
Hinge, Lower
Washer F5 x 10 x 0.8
Q’ty.
1
9
1
1
1
1
1
2
1
4
2
1
1
Key
No.
14
15
16
17
18
19
20
21
22
23
24
25
26
-- 11 --
Part No.
Description
617 120 8481
617 220 5052
617 199 1048
617 215 2714
617 181 4248
617 162 1938
411 069 1707
411 006 6604
617 200 0381
617 080 5315
617 224 1081
617 224 1098
617 225 2377
Washer
Receptacle
Rest
Turn Table
Antenna Complete
Protective Cover
SCR TPG TRS 4 x 6 DA
SCR TPG PAN 3 x 6 Z1
Thermal Fuse 167°C
Special Washer
Protective Cover
Protective Cover
Cover
Q’ty.
1
1
1
1
1
1
1
1
1
1
1
1
1
SWITCHES AND MICROWAVE PARTS
NOTE : All component have special characteristics for safety and must be replaced using parts listed in this manual.
All service on M/W ovens should be performed by a qualified technician using approved testing equipment.
symbol.
Customers should not attempt replace component marked with a
Key
No.
Part No.
Description
1
2
3
4
5
6
7
8
9
10
11
411 082 5201
617 203 8599
617 199 8283
411 006 6604
617 124 1235
415 002 6002
423 014 2509
617 177 6157
617 180 4447
617 162 1990
617 197 6670
12
13
14
15
16
17
617 182 2373
411 011 5609
617 181 2534
617 206 9180
617 124 1280
617 197 7417
SCR TPG TRS 4 x 10 Z1
H.V.Transformer, N6T-P300
Stay, Cavity & Magnetron
SCR TPG PAN 3 x 6 Z1
Thermostat, Magnetron 122°C
Magnetron, 2M218H(N)A
Fuse, 250V 15A
Power PCB
Lead Wire Ass’y, including Diode
Space Partition (Blower)
H.V.Capacitor including Resistor
0.97 uf 2.2KV.
Capacitor Band
Bolt Hex 4 x 10 Z1
Duct, Mag. Exhaust
Lamp, 125V 15W
Lamp Socket
Blower Motor
Q’ty.
Key
No.
9
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
-- 12 --
Part No.
Description
Q’ty.
18
19
20
21
411 082 5201
617 196 8507
617 124 1181
617 152 4741
2
1
1
1
22
617 004 5575
23
617 152 4741
24
25
26
27
28
29
30
31
32
617 124 1198
617 124 1174
411 102 5907
SCR TPG TRS 4 x 10 Z1
Blower Fan
Latch Lever
Micro Switch, Primary Interlock
V-5930D
Micro Switch, Interlock Monitor
V-5220DZ
Micro Switch, Door Sensing
V-5930D
Latch Lever
Lever Stopper
SCR ETG TRS 4 x 10 N2
617 124 3796
411 160 6106
411 007 5903
617 208 7689
Lead Wire Assy
SCR S-T TRS + SRT 4 x 10 Z1
SCR TPG BIN 4 x 10 Z1
Clip
1
1
1
2
1
1
1
1
2
DOOR PARTS
NOTE : All component have special characteristics for safety and must be replaced using parts listed in this manual.
All service on M/W ovens should be performed by a qualified technician using approved testing equipment.
symbol.
Customers should not attempt replace component marked with a
Key
No.
Part No.
Description
1
2
3
4
617 208 7504
411 178 9908
617 222 1175
617 208 7481
5
411 054 1903
Door Cover
SCR S-T PG FLT 4 x 8 ZK
Door Panel
Door Main Frame (Also order
Door Sheet when replacing
Door Main Frame)
Nut Hex + Flg W/SRT 5
Q’ty.
1
2
1
1
Key
No.
6
7
8
9
10
11
2
-- 13 --
Part No.
Description
617 180 6151
411 011 0802
617 124 0948
617 124 0931
617 101 1494
617 179 2478
Hinge, Upper
Bolt Hex + SW + W 5 x 14
Choke Dielectric
Door Sheet
Spring
Door Latch
Q’ty.
1
2
1
1
1
1
CONTROL PANEL PARTS
NOTE : All component have special characteristics for safety and must be replaced using parts listed in this manual.
All service on M/W ovens should be performed by a qualified technician using approved testing equipment.
symbol.
Customers should not attempt replace component marked with a
Key
No.
1
2
3
4
5
Part No.
Description
617
617
617
617
617
Knob Assy
Knob Assy
Control Plate
Control Frame
Control Base Assy
143
143
209
208
209
9632
9656
0573
7634
0610
PRINTED MATTER (Items Not Illustrated)
Key
Part No.
Description
No.
617 209 0542
617 209 0498
617 209 0436
Operating Instructions
Carton Box Complete
Name Plate
MAY ‘99 LT 300 Printed in Singapore
Q’ty.
1
1
1
1
1
Key
No.
6
7
8
9
10
Q’ty.
1
1
1
-- 14 --
Part No.
Description
411 160 6205
617 209 0566
411 006 2804
617 080 9559
617 124 1143
SCR TPG TRS + SRT 4 x 10 Z1
Timer Switch
SCR TPG BIN 4 x 10 Z1
Spring, Door Release Lever
Door Release Lever
Q’ty.
1
1
4
2
1