Sanyo EM-X470S User manual

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SUPPLEMENTOF
SERVICE MANUAL
FILE NO.
EM-X470S
Microwave Oven EM-X470BS
EM-)(O1 OS (Australia/New Zealand)
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IModel No. IProduct Code No. I
See the service manual of EM-X670S(SM-8601 77)
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.
‘i’
PRECAUTIONS
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 compartments,
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.
1
REFERENCE NO. SS-860196

—TABLE OF CONTENTS —
Specifications .....................................1 Test Procedures ..................................3-4
PowerOutput Measurement ..........................1 Exploded View and Parts List ,......................5- 12
QCircuit Diagram ....................................2 Overall Circuit Diagram ..... ....................13-14
1. SPECIFICATIONS
Rated Power Consumption .
Microwave Output .
Frequency . . .
Power Supply . ..
Rated Current . . .
Safety Devices .
Q
Timer . .... . . .
Overall Dimensions ..
Oven Cavity Size ..................
Turn Table Diameter ..............
Effective Capacity of
‘L Oven Cavity . .
Net Weight .......................
2. POWER OUTPUT
NOTE
.
1,500W.
850W.
2,450MHz*50MHz.
230V-240V,50HZ.
6.6Amp.
Temp. Fuse, Open
at 167°C for Cavity.
Thermal Protector, Open
at 122”C for Magnetron.
Fuse (Cartridge Type 8A)
Primary Interlock Switch.
Door Sensing Switch and
Relay 2.
Interlock Monitor Switcn.
Electronic Digital, up to
99min,99 sec.
525(W) X425(D) x288 (H)mm.
351 (W)X371 (D)x208(H) mm.
275mm.
28 liters.
Approx.17 Kg.
The Power Output specification 850W onthis modei is measured
Lwith IEC measurement. The Power Output is measured with two
(2)liters water isequivalent to850Win measurement with IEC,
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.
(c)
(D)
(E)
(F)
(G)
1.
2,
1.
2.
1.
2,
3.
Set cooking time to two (2) minutes.
display)
Touch START key and operate oven
minutes.
Take out the two bowls at once.
Stir both water with thermometer and
temperature rise respectively.
(“2 00’’ appears in
for exactly two (2)
measure the water
Get temperature rise by calculating the difference (water
temperature after cooking minus initial temperature) in
each bowl.
Then calculate average value(t) of both temperatures rises
in degrees centigrade.
Then work out;
Power Output (watt) =70 xAt
Where At is an Average Temperature Rise in degrees
centigrade.
Power Output shall be in the following range:
Average Microwave
Temperature Rise Power Output
H%-t=-i
I,1
Power Output will be influenced by line voltage of power
supply. Consequently, correct power output must be
measured within 240V AC *2volts while unit is operating.
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–l–

3. CIRCUIT DIAGRAM
N@L
1-1
POWER CORD LPOWERCOFID
—
GROUND
~— ———— _, .
1
I4)c1 [ Cl -0.22KF
L1. L2 – 6501LH
\C2, C3 -4700PF
CAVITY TEMP FUSE
w
I
OPEN :167~°C
BL n
$vi -------- CAV’:L’GHT6)/---’KL
MAGNETRON
?
THERMAL PROTECTOR
wBK
INTERLOCK MONITOR PRIMARY
SWITCH INTERLOCK SWITCH
OPEN :122*5°C
wlid
-
NC COM
BLOWER MOTOR @y
wY
GEAR MOTOR
Y
BK
-–1
I
Y
HIGH VOLTAGE TRANSFORMER
.—— —— ———— ____ _
h?r
L
1
CONNECTOR RELAY 2z’
5“@l-:*
[3
11 RELAY 1
-)!w●
u
I
I
JL
mFUSE DIODE
4.2 KVDC
❑L————J
DIODE n’7- CAPACITOR
MAGNETRON RESISTOR I.louf
10 MEG-OHM 2.5 KV
WI CONNECTOR
S102
I3cCONNECTOR
.1 S101
m
TOUCH
CIRCUIT KEY
1STEPD;Wi– BOARD BOARD
lTRANSFORMEfl
——— —— _— ——1 RK
Figure 1WIRINGCOLOUR
BK: BLACK
O:CRANGE
BL :BLUE
W:WHITE
Y:YELLOW
R:RED
ISECONDARY INTERLOCK 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 .
Parts marked with this sign are supplied with
high voltage exceeding 250V.
Parts marked with this sign have special
characteristics important for microwave leakage.
When replacing any of these parts use only
manufacturers specified parts.
DOOR CLOSE ●..
–2–

4. TEST PROCEDURES
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–3–

–4–

5. EXPLODED VIEW AND PART LIST
CAVITY PARTS
L
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*** ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS
IDENTIFIED BY A TRIPLE ASTERISK (***)
<ey Part No. Description Q’ty
No.
16171862072 Cabinet, (EM-X470S &EM-X41 OS) (Also 1
order Circuit Diagram when replacing
Cabinet)
16171284942 Cabinet, (EM-X470BS) (Also order Circuit 1
Diagram when replacing Cabinet)
2 4110825201 SCR TPG TRS 4X1021 8
3 411 1806007 SCR TPG TRS +SRT 4X1021 4
4 6171888584 Power Cord 1
5
6 6172049386 Oven Cavi~” (Not Service Part) 1
76171512458 Gear Motor 1
8 4110105808 SCR EVR PAN 4X1021 2
9 6171385601 Bottom Plate’”” (Not Service Part) 1
10 6172004583 Plastic Foot with Canoe Clip 4
(ey Part No. Description Q’ty
10.
11 4110110802 Bolt Hex +SW +W5 x1421’” 2
12 6171808137 Hinge, Lower’*’ 1
13 4110892500 Washer F5 x10x 0.8 1
14 6171208481 Insulation Sheet 1
15 6171444476 Turn Table Shaft 1
16 6172049489 Roller 1
17 6170735889 Rotating Tray 1
18 6172049403 Antenna Complete 1
19 6171621938 Cavity Cover 1
20 4110691707 SCR TPG TRS 4X6DA 1
21 4110076900 SCR TPG PAN 3X621 1
22 6172000381 Thermal Fuse 1
23 6170805315 Special Washer 1
24 411 1606106 SCR S-T PAN 4X1021 2
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–5–

SWITCHES AND MICROWAVE PARTS ./$ ‘>
***
[ey
do.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
0Parts marked with this sign have special
~characteristics important for microwave
leakage, When replacing any of these parts use
only manufacturers specified parts.
ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS
IDENTIFIED BY A TRIPLE ASTERISK (***)
Part No.
4110825201
6172080260
6171998263
4110076900
6171241235
4150026101
4230227503
6172133416
6172080406
6171621990
6172129013
6171822373
4110115609
6171984996
6171103618
6171241260
6171670592
Description
SCR TPG TRS 4X1021
H.V Transformer’**, YS-X670SAP
Stay, Cavity &Magnetron
SCR TPG PAN 3X621
Thermostat, Magnetron 122°C
Magnetron, 2M219H(B)A-*’*
Fuse, 250V 8A
Power PCB
Lead Wke Ass’y (including Diode)
Space Partition (Blower)
H.V Capacitor including Resistor,
1.1uf 2.5KV
Capacitor Band
Bolt Hex 4x1021
Duct, Msg. Exhaust
Lamp, 240V 25W
Lamp Socket
Blower Motor
t’ty
8
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
[eyPart No. Description Q’ty
40.
16 4110825201 SCR TPG TRS 4X1021 2
19 6171966507 Blower Fan 1
20 6171241181 Latch Lever”” 1
21 6171670523 Micro Switch, Primary Interlock 1
V-5P030FBX129**’
22 6170045575 Micro Switch, Interlock Monitor 1
V-5220 DZ’”’
23 6171670523 Micro Switch, Door Sensing 1
V-5 P030FBX129”*
24
25 6171241174 Lever Stopper’*’ 1
26 411 1025907 SCR ETG TRS 4X10 N2 2
27
28 6171173505 Harness, Door Sensing 1
29 6171243796 Lead Wire Assy 1
30
31 4110014704 SCR S-T PAN 4X10 ZI 1
32
33 411 1606106 SCR S-T PAN 4X1021 1
–6–

DOOR PARTS
‘&
,***
\
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\
*** ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS
IDENTIFIED BY A TRIPLE ASTERISK (***)
(ey Part No. Description Q’ty
Vo.
16172076294 Door Cover*’” (EM-X470S) 1
16172107271 Door Cover’** (EM-X470BS) 1
1 6172128368 Door Cover”” (EM-X410S) 1
2 6172076300 Door Panel””” (EM-X470S) 1
2 6172107592 Door Panel’”” (EM-X470BS) 1
2 6171814170 Door Panel’” (EM-X41 OS) 1
3 6171992434 Door Main Frame””’ (EM-X470S &1
EM-X41 OS) (Also order Door Sheet when
replacing Door Main Frame)
3 6172057163 Door Main Frame””’ (EM-X470BS) 1
(Also order Door Sheet when replacing
Door Main Frame)
Cey Part No. Description Q’ty
No.
4 6171240948 Choke Dielectric*’” 1
56171240931 Door Sheet 1
64110541903 Nut Hex +Flg W/SRT 5*’* 2
7 6171806151 Hinge, Upper”” 1
84110110802 Bolt Hex +SW+ W5 x 14””’ 2
9617101 1494 Spring”” 1
10 6171792478 Door Latch*” 1
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–7–

CONTROL PANEL PARTS
4●**
R\7
Y*.**
\
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,●☛☛
✼
/
*** ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING
9***
APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS
IDENTIFIED BY A TRIPLE ASTERISK (***)
Key Part No. Description Q’ty
No.
3 6172076317 Control Frame’”’ (EM-X470S) 1
3 6172107301 Control Frame’”” (EM-X470BS) 1
36171795981 Control Frame’** (EM-X41 OS) 1
46172070377 Control Base (EM-X470S &EM-X470BS) 1
4 6171514377 Control Base (EM-X41 OS) 1
5411 1606205 SCR TPG TRS +SRT 4X10 Z1’” 1
6 6172120676 Power &Control Circuit Board**” 1
(EM-X470S &EM-X470BS)
6 6172123578 Power &Control Circuit Board”’” 1
(EM-X410S)
7 411 1295805 SCRTPG Bin3x IOZ1 2
8 6170809559 Spring, Door Release Lever’”” 1
9 6172070353 Door Release Lever’” (EM-X470S) 1
9 6172107288 Door Release Lever’”” (EM-X470BS) 1
9 6171795929 Door Release Lever’”” (EM-X410S) 1
(ey Part No. Description Q’ty
Uo.
6172115702 Name Plate (EM-X470S) 1
6172140988 Name Plate (EM-X470BS) 1
6172135427 Name Plate (EM-X41 OS) 1
6172129006 Circuit Diagram 1
6171987324 Cook Book 1
(ey
Uo. Q’ty
Part No. Description
6172115733
6172140797
6172140760
6172109237
6172128788
Control Sheet’”* (EM-X470S) (Also order
Touch Key Board when replacing
Control Sheet)
Control Sheet”* (EM-X470BS) (Also order
Touch Key Board when replacing
Control Sheet)
Control Sheet”*’ (EM-X41 OS) (Also order
Touch Key Board when replacing
Control Sheet)
Touch Key Board”’* (EM-X470S &
EM-X470BS) (Also order Control Sheet
when replacing Touch Key Board)
Touch Key Board”’” (EM-X410S) (Also
order Control Sheet when replacing
Touch Key Board)
1
1
1
1
1
1
1
1
2
2
PRINTED MATTER (Items Not Illustrated)
Description Q’ty
1
1
1
1
1
:ey
do. Part No.
Operating Inst. (EM-X470S &EM-X470BS)
Operating Inst. (EM-X41 OS)
Carton Box (EM-X470S)
Carton Box (EM-X470BS)
Carton Box (EM-X41 OS)
6172080512
6172141220
6172115757
6172140957
6172140940
–8–

CONTROL CIRCUIT BOARD
(Part No. 617212 0676)
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TP-6
TP-5
TP-3
TP-
TP-2
TP-4
GROUND
–9–