Sanyo EM-X680S Service Manual

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Page 1

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SUPPLEMENTOF SERVICE MANUAL

Microwave Oven

FILE NO.

~M-x680s

(New Zealand)

Product Code No.

43731476

See the service manual of EM-N102WS(SM-860078) except the items described in this service manual.

Foreword

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.

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.

REFERENCE NO. SS-860129

Page 2

— 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

1. SPECIFICATIONS

Rated Power Consumption .... 1370W.

Microwave Output 900W.

Frequency . .. .. . .. . 2,450 MHz+50MHz.

Power Supply 230V–240V,50HZ.

Rated Current ... . .. .. 6. OAmp.

Safety Devices Thermal Protector, 0penat122°C

for Cavity. Thermal Protector, Open at122°C for Magnetron.

Fuse (Cartridge Type 8A). Primary Interlock Switch. Door Sensing Switch and Relay2. Interlock Monitor Switch.

Timer

Electronic Digital, up to

99 min. 99 sec. Overall Dimensions 550( W)x451(D) x311( H) mm.

Oven Cavity Size .. ... .... ... .... .. 375(W) x404(D) x230(H) mm.

Turntable Diameter . ... ....... ... 360mm.

Effective Capacity of

Oven Cavity 341iters.

Net Weight ...... ....... ... ....... ..... Approx.20 Kg.

2. POWER OUTPUT MEASUREMENT

NOTE

The power output specification, 900W on this model is measured with lEC measurement. The power output is measured with two(2)

liters water isequivalentto900W inmeasurement 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.

(c)

(D)

(E)

(F)

(G)

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

in degrees centigrade.

Then work out;

Power Output (watt) = 70 x At

Power output shall bein 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 240 VAC+2 volts while unit is operating.

(B) Place thetwobowls on glass turntable

–l–

Page 3

3. CIRCUIT DIAGRAM

POWER..:.!1

l_-

POWER CORD

1‘.

GROUND

‘NE3 ‘L’

Irr l“J-

I –1 C3

N L

I I I I

CAVITY THERMAL PROTECTOR OPENS AT 122*5JC

MAGNETRON

THERMAL PROTECTOR OPENS AT 122f5”C

COM

I INTERLOCK MONITOR -

‘RIMARY

{ 07

IIN I cri LOCK SWITCH

COM

I BLOWER MOTOR Iy

GEAR MOTOR

HUMIDITY SEN~OR

HIGH VOLTAGE TRANSFORMER

~a - ~

●

1CONNE&OR

—

I I

lC?l

—.

‘- 11

❑ “

FUSE DIODE

I STEP DOWN

4 KVDC

❑

20 KVDC

•~~

DIODE

_l [

CIRCUIT

BOARD

CONNECTOR

Slol

TOUCH

KEY

BOARD

775-

MAGNETRON

L—.

WIRING COLOUR

BK BLACK O OUANGE BL BLUE W WHITE

YELLOW

R RED

Parts marked wlfhthis s!gnare supplled with h(ghvoltage exceeding 250V

Parts marked withthis s!gnhave special

Figure 1

SECONDARYINTERLOCK

PRIMARY INTERLOCK DOOR

SWITCH MADE.

INTERLOCK MONITOR SENSING

RELAY2

SWITCH SWITCH SWITCH

CONDITION

COM COM COM COM

NO NO

DOOROPEN

●

❑

DOOR CLOSE

●

—

character!stlcs Importantfor microwave leakage When replaclng any of these parts use only manufacturers spec(fled part.

–2–

Page 4

4. TEST PROCEDURES

—

–3–

Page 5

REMOVING BLOWER MOTOR (Figures 3 (Top View) and 4)

(1) (2)

(3)

(4)

Remove screw securing the stay. Disconnect all lead wires from the blower motor and H.V. capacitor, Remove 2 screws securing the blower base and disengage 3 hooks from the rear plate of cavity (Figure 4) Remove 1 screw securing the blower motor with the blower base

REMOVING MAGNETRON (Figure 3 (Top View))

After removing the blower motor: (1) Remove duct (msg. intake) and duct (msg.

exhaust). (2) Remove 1 screw securing the thermal protector. (3) Disconnect 2 lead wires from the magnetron. (4) Remove 4 screws securing the magnetron to the

waveguide. (5) Take out magnetron VERY CAREFULLY.

NOTES

1, When removing the magnetron from the cavity or

wave guide, use a proper 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.

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 a box

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 a leakage detector and confirm the leakage is below 5mW/cmz.

NOTES

When inserting duct (mag, 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)

Thermal protector

Screw

/ \ 1

Rti2ii/ td+ ‘

St:y

Duct (msg. Intake)

Figure 3 (TOPView)

Duct

(msg. exhaust)

Screws

Figure 4

Screws

Upper Hook

~si>etr””

1= ~......:l I IllIll II

I *I) -w

. ..9

4’--’1

I II r ‘

1,- I* III

w“””””””’

!Jf3

‘1

Lower Tab Overlap onto

magnetron

Figure 5

–4–

Page 6

6. EXPLODED VIEW AND PART LIST CAVITY PARTS

‘e’

&Id\ .

$3.

--v/ ‘9 ‘

.**

11 ‘**

-.;,........;.

..:.....$.

Q-lo

*** 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

Uo.

6171862089

Cabinet (Also order Circuit Diagram

when replacing Cabinet).

4110825201

SCR TPG TRS 4XI0 Z1

411 1606007

SCR TPG TRS + SRT 4X10mm

4 6171385113

Power Cord

5 6

6171888089

Over Cavity ‘“

(Not Service Part)

7 6171512458

Gear Motor

4110105808

SCR EVR PAN 4XI0 Z1

6171815986

Bottom Plate ““”

(Not Serwce Part)

10 6171445435

Plastic Foot with Canoe ClIp

4110110802

Bolt Hex+SW+W 5x14 ‘“

6171240795

Hinge, Lower ““

4110892500

Washer F5x1OXO.8

(ey tie.

14 15 16 17 18 19

21 22 23 24 25 26 27

Part No.

6171208481 6171444476 6171872026

6171893816 6171812503 6171621938 4110691707 4110076900 6171241235 6170805315 411 1606106 6171473865 6171756203

6171281149

Description

Insulation Sheet Turn Table Shaft Roller Rotating Tray Antenna Complete Cavity Cover SCR TPG TRS 4X6 DA SCR TPG PAN 3X6 ZI Thermostat, Cavity 122°C Special Washer SCR S-T PAN 4X1O ZI Humidity Sensor Special Washer

Duct, Humidity Sensor

Q’ty

1 1 1 1 1 1 1

2 1

1 1 1

-5-

Page 7

SWITCHES AND MICROWAVE PARTS

~fl~

“M.,

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.

● ** 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 Vo.

1 2

3 4 5 6 7 8 9

10 11

12 13 14 15

‘6L

Part No.

4110825201 6171685657 6171621945 4110076900 6171241235 4150026002 4230227503 6171850024 6171805741 6171821990 6171857559

6171822373 4110115609 6171812534 6171103618 6171241280

Y!!!!ll

Description

SCR TPG TRS 4XI0 Z1

H V.Transformer, N5T-S829MP”

Stay, Cavity & Magnetron SCR TPG PAN 3X6 Z1 Thermostat, Magnetron, 122°C

Magnetron, 2M218H(N) A ““

Fuse, 250V 8A

PCB Complete

Lead Wire Ass’y (including Diode)

Space Partition (Blower)

High Voltage Capacitor Including

Resistor, 1.1OMF 2.1 KV Capactor Band

Bolt Hex 4x1O Z1

Duct, Msg. Exhaust

Lamp, 240V 25W

Lamp Socket

3 Washer F5x1 OXO.8

Q’ty

1 1 1

1 1

4 1

<ey No.

18 19 20 21

24 25 26 27 28 29 30 31

“L

Part No.

4110825201 6171968507 6171241181

6171524741

6170045575

6171524741

6171241174 411 1025907

6171173505 6171405354 6171325713 4110014704

Description

SCR TPG TRS 4XI0 Z1 Blower Fan Latch Lever’” Micro Switch, Primary Interlock V-5930 D”” Micro Switch, Interlock Momtor V-5220D~” Micro Switch, Door Sensing

V-5930 D””

Lever Stopper’” SCR ETG TRS 4X1O N2

Harness, Door Sensing Lead W[re Ass’y Insulation Sheet SCR S-T PAN 4X1O Z1

UUC[, nU1lllUlly X11>(JI

>’ty

1 1 1

1 2

1 1

-4

–5–

Page 8

DOOR PARTS

/ 8 ***

—.

*** 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 (***)

Key

No.

2 3

4 5 6

Part No.

6171956528 6171956542 6171385908

6171520958 6171950298 4110541903

Description

Door Cover ‘“ Door Panel ‘“ Door Main Frame ‘“

(Also order Door Sheet when replaclng Door Main Frame) Choke Dielectric ‘“ Door Sheet Nut Hex + Flg W/SRT 5 ‘“

Q’ty

1 1 1

1 1 2

[ey Part No.

Description

Q’ty

~o.

7 6171240955

Hinge, Upper ‘“

4110110802

Bolt Hex + SW + W 5X14 ‘“

617101 1494

Spring ‘“”

10 6171792478

Door Latch ‘“’

–7–

Page 9

CONTROL PANEL PARTS

5 ***

7 ***

$’/

1 ● **

10 ***

“’’”u

‘9 ***

*** 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

Jo.

7 6171837698

Control Circuit Board Complete ‘“

411 1295805

SCR TPG BIN 3X1O Z1

6170809559

Spring, Door Release Lever ‘“

10 6171514339

Door Release Lever ‘“

Key

No.

3 4 5 6

Part No.

6171937039

6171866803

6171514346 6171521030 6171514377 411 1606205

Description

Q’ty

Control Sheet ““”

(Also order Touch Key

Board when replaclng Control Sheet)

Touch Key Board

““” (Also order Control Sheet when replacing Touch Key Board) Control Plate Control Frame ‘++ Control Base ‘“” SCR TPG TRS+SRT 4X1O Z1

1 1 1 1

PRINTED MATTER (Items Not Illustrated)

Cey No.

Part No.

Description

Cook Book

Operating Instructions Carton Box Name Plate C!rcuit Diagram

Q’ty

6171987324 6171937558

6171937190 6172000930 6171891850

1 1

–8-

Page 10

CONTROL CIRCUIT BOARD (Part No. 617183 7698)

Icll

’264“3

125+

.- fi

“-A-

-41

WrrFii

IV c-

— TP-8 —TP-7

— TP-2

—

TP-1

— TP-4

— TP-3

— TP-5

— TP-6

–9–

Page 11

CONTROL CIRCUIT BOARD (Part No. 617183 7698)

.-.

Key No Order Part No.

Description Q’ty NTEGRATED CIRCUIT :11

4093844404 IC LM 8757–227SP

:12

4090573000

IC UPC 358C

1 “TRANSISTORS )11-13

4050043010

2SA564A-Q-TP 3

2104

4050354819

2SC1685-Q-TP

1103

4050005612 DTC143XS-TP

1101

4050824619

DTA123YS-TP

2102, 105, 107

4050001812

DTA143XS-TP 3

2106

4050003113 DTC1 14ES-TP

)IODES

)11, 12, 13

4070120329

IN4003-TP

)101-107, 251,

4070124317

1SS132-TP 9

252

?D14

4070514415 GZS13Y-AT1

ZDII

4070570510

RD5.6ESB3

!D12

4071606812

HZS27NB1

?D13, 101

4071322316

HZS3.9NB2

2APACITORS

;258

4031093139 Ceramic, 100pf

+–lo%, 50V

;251 , 252,

4030691247 Ceramic, 1000 pf

255, 256

+ –1 o%, 50V

G102

4030024728 Ceramic, 0.1 mfd,

+–5%> 25V

CI03, 104,257 4030698355

Ceramic, 0.01 mfd,

+–5%, 50V

Clol

4031478837

Electrolytic, 1mfd,

+ –20”/’, 50V

C13

4031478629

Electrolytic, 47mfd,

+ –20%, 1Ov

C253, 254

4031527426

Electrolytic, 47mfd,

+–20°/0, 16V

:11, 12

4031888418

Electrolytic, 470mfd,

+ –20°/0, 25V

Key No. Order Part No.

Description

Q>ty ?ESISTORS <101,107,114

122-126

315>102, 108,

109, 116

3104, 106

<253, 254

316, 17

318, 19

355, 56, 58

3259, 260

a13, 14

Rlll, 112

R115

R11O

RI13

RI05

Rll, 117-121

R52-54, 103

R12

R252

R251

R255, 256

R257, 258

RESISTORS B

RB251

WSCELLANEO 3Z 1

DTI RLI RL2 RS1

S1 S201 Slol SI02 VST 1 JBI PT 1

JB1OI J1OI-109 JI-6 2

4010125639

4010126953

4010164757

401 0134156

4010135252

4010230640

4010136338

4010145132

401 0162555

4010169653

4010171735

4010182751

4010183738

4010163750

4010201957

4010202835

4010212953

401 1033319

401 1124126

401 1557726

401 1557825

:KS

Carbon, IK ohms +– 5%,

714WI

Carbon, IOK ohms + – 5%,

‘/4w

Carbon, 22K ohms +– 5“/0, 114W

Carbon, 120 ohms + – 5“/0, ’14W

Carbon, 1 2K ohms +–5”/0,

114W

Carbon, 82 ohms + –5%

114W

Carbon, 12K ohms +–5”/0,

114W

Carbon, 15K ohms + –57., ’14W

Carbon, 220 ohms + – 5%,

114W

Carbon, 27 ohms +– 5%3 ’14W

Carbon, 2.7K ohms + – 5%,

114W

Carbon, 330 ohms

+–57., 114W Carbon, 3.3K ohms

+–5%,

114W

Carbon, 2.2K ohms +– 5%3

114W

Carbon, 4.7K ohms + – 5%,

114VV

Carbon, 47K ohms +–5”/0,

114VV

Carbon, 5.6K ohms

+ –5%

’14W

MT-Fllmi 1.47K ohms

+–1%, 16W

MT-Filmi 1.54K ohms +–1%

16w

MT-F(lmi 2.05K ohms +–1%, 16W

MT-Film, 820K ohms +–1%

‘/6w

6171229066

Resistor Network

4200006800

6171853735 6171379358 6171410549 6171204452

6171694109 6170024396 6171245059

617111 1392 4071185505 6171325744 6171712155

617-144-9259 6170794237 6170794299 6170794107

Buzzer PKM22EPT-2001 -CA

Display Tube Relay, OJE-SH-1 12LM Relay, DU12D1-I PR Ceramic, Osclllatol

EFO-GC 4004 T4 Connector. Connector, 3P Male Connector, 10P Male Connector, 2/3 P, Male Varlstor

Noise Filter Step-down Transformer,

PD5TK-S150 Noise Filter Jumper Jumper Spacer, Display Tube

1 1 1 1

1 1 1

1 1 1 1

1 9 6

–lo–

Page 12

.——————————————————______ _____l

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——

———

——

L––––––—–l––– ––––

Iml

1 I

I I

I _______ ––_–– J–J

——

suy/’”/o

SANYO Electric Co., Ltd. Osaka, Japan

MAY ‘97/1 00 LT Printed in Singapore

–11–

Sanyo EM-X680S Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual