Sanyo EM-D9552NECO Service Manual Download Page 22

Page: 22 / 23

11. OVERALL CIRCUIT DIAGRAM
EM-SL20

-21-

IC 11 LM8842

P65/AN5

P64/AN4

P61/AN1

C103

0.01u

50V

R120

10K

111

513

V5T1

RL1

Q107

A143X

-15V

4.7K

10K

DOOR

SENSING

SWITCH

S1 3/5P

53062-0310

PT1 PD5TK-S150

-5V

15 3.3K

BZ1

2KHZ

10K

C106

0.01u

50V

XIN

XOUT

P50

P47

P54

P56/T

OUT

VSS

P63/AN3

P62/AN2

1N4002 X4

C12

47u

/10V

-5V

-15V

D15

1N4002

C13

470u

/35V

ZD1

RD5.6ESB3

4.7K

C15

1000P

/50V

C16

0.01u

/50V

D12

C14

0.01u

/50V

D13

D14

A564A

R12 2.7K

470u

/35V

ZD13

ZD12

Q12

B123B

RD7.5ESB3 X2

C107

0.1u

/25V

OPEN

R121 10K

R122 100K

R123 100K

R124 100K

-5V

VL3

VL2

VL1

10K

-5V

Q108 A564A

10K

OPEN

D103

1N4002

OPEN

-5V

R105 4.7K

P57

P60/AN0

P43

P41

P40

P53

P52

P51

P42/INT

P55/CNTR1

VCC

VREF

D102

S102

5267-03A

R104

10K

C102 0.01u /50V

R140 4.7K

S301 EH3P

R304

10K

C302 1000P /50V

R303

10K

R301 10K

R302 10K

-5V

C301 1000P /50V

97-94

90-68 67-58 55

1-4

5-27

39-28

COM1-4

LCD1 H4062

COM0-3

SEG0-22

SEG23-34

1/SEG35

P12/SEG36

P13/SEG37

P14/SEG38

P15/SEG39

P16

P17

P20

P21

P22

Q101

A123X

2.2K

10K

-5V

RS1

4MHZ

R103

560K

D101

C101

/50V

R102

10K

ZD101

RD3.9

ESB2

R101

RST

RL2

OPEN

TIMER SW

SW BO

ARD

(12700)

OPEN

LED1 LED2 LED3 LED4 LED5

R152

10K

R151

390

Ω

R153

1.2K

Q151

A564A

P77

-15V

-5V

P67/AN7

P66/AN6

P70

R52 12K

R54 12K

R56 12K

P80

P81

OPEN

-5V

OPEN

100

OPEN

P71

P72

P73

P74

P75

P76

P23

P24

P26

P27

R129 10K

R12810K

R12710K

R126 10K

R125 10K

R101

100K x5

R130

R131

R132

4.7K X5

SW2

SW9-2

SW10

SW1

SW6

SW5

SW4

SW3

SW13

SW12

SW8

SW9-1

SW14

DELA

A.DEF

MICR

WER

UICK

GRILL

KITCHEN

TIMER

MORE/

LESS

CLEAR/

GRILL

450W

GRILL

150W

S101

52045-1645

S103

52044-1645

SW BO

ARD

(31900)

GNETR

2x500PF/2x1.5uH

HIGH VOL

AGE RECTIFIER

HIGH VOL

AGE CONDENSER

HIGH VOL

AGE

TRANSFORMER

MQ/O

VEN

THERMO

PRIMAR

SWITCH

230V

50Hz

L1,L2 = 1mH

C1 = 0.22

C2,C3 = 4700PF

R = 1M

Ω

MONIT

OR SWITCH

HEA

TER

THERMO

GRILL

HEA

TER

FUSE

8A(T)

RL4

CAP

CIT

2.2K

10K

Q102

A123Y

D107

D104

R106 R107

Ω

x 2

RL2

RL3

INR

USH

RESIST

Q105

C1741

150

Ω

4.7K

10K

Q106

A143X

4.7K

47K

RL1

OPEN

2.2K

10K

Q104

A123Y

D109

D106

10 R1

Ω

x 2

GRILL

HEA

TER

2.2K

10K

Q103

A123Y

D108

D105

R108 R109

Ω

x 2

INR

USH

P46

P45

P44

Summary of Contents for EM-D9552NECO

Page 1: ...e repairs if necessary 1 Interlock operation 2 proper door closing 3 seal and sealing surfaces arcing wear and otherdamage 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 alignmen...

Page 2: ...curely 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 CHECKOU...

Page 3: ...er is applied 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 7 b Make sure the perforated screen and the dielectric c...

Page 4: ... More Less Key 8 Personal Menu Keys 9 MIcro Power 10 Delay Start 11 Quick Start 12 Clear Stop 13 Start 14 Rotary Dial 3 5 OVEN CONTROL PANEL Figure 1 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 setting is reached 10 13 3 2 4 6 8 7 9 12 ...

Page 5: ... F HIGH VOLTAGE RECTIFIER HIGH VOLTAGE CONDENSER GM BM L NO COM HIGH VOLTAGE TRANSFORMER L1 L2 1mH C1 0 22 F C2 C3 4700PF R 1M C1 R C3 C2 L1 L2 230V 50Hz SC1 MTCO CFTCO 122ûC NC COM SC3 RL2 2 1 S101 TOUCH KEY BOARD CONTROL CIRCUIT BOARD SC2 COM NO RL3 RL4 5 1 3 RL1 ST S1 H HT 150ûo C FUSE 8A T H V FUSE 0 75A IR 25 OVEN CONDITION DOOR OPEN 4 The parts marked with are supplied with a high voltage wh...

Page 6: ...gnetron is operating correctly and producing any other power setting apart from full power 7 TEST PROCEDURES AND TROUBLESHOOTING CAUTION DISCONNECT THE POWER SUPPLY 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 Fig...

Page 7: ...cates several ohms and gradually returns to 10 Meg ohm Abnormal reading Indicates continuity or 10MΩ from the beginning Measure the resistance Across two terminals with an Normal reading ohm meter on its highest scale Indicates over 10MΩ in one direction forward direction and infinite ohms in the reverse direction using meter which is provided with a 9 volt battery NOTE Some digital meters may sho...

Page 8: ...mal reading Indicates infinite ohms Measure the voltage Between test points TP 1 TP 2 and ground See control circuit board on page 20 NOTE Proceed with the check of the step down transformer to see if any one of the measured values is different from the specified values Figure 10 7 HV FUSE Test TP 1 TP 2 point Voltage 5V 15V DC DC CONTROL CIRCUIT BOARD COMPLETE ...

Page 9: ...es connecting an ohm meter to its terminals Primary Interlock Door Sensing Connect an ohm meters leads to terminals COM and NO of switch Interlock monitor Connect an ohm meters leads to terminals COM and NC of switch CAUTION After checking the switches make sure that the interlock monitor switch is properly connected according to the CIRCUIT DIAGRAM on page 4 8 ...

Page 10: ...ctor for magnetron and AC Power Cord If the fuse has blown see D REMOVING FUSE on page 13 0 230 0 Volt 0 230 230 Volt PROBLEM 1 b Control Circuit Board Check power supply voltage on control circuit board See page 7 Voltage incorrect Replace it if necessary 0 V 0 V Each Voltage OK Normal control circuit board Replace control circuit board b Runs Runs Correct seating of connector S101 or replace con...

Page 11: ...nector S102 between pins with the door closed after removing connector S102 from control cct board Check contact of connector S102 PROBLEM 3a Correct Seating Poor Contact Normal Contact Contact OK Normal Door Sensing Switch Touch START key and measure voltage between the two wire leads from primary windings of H V transformer after removing the wire leads from terminals of H V transformer Replace ...

Page 12: ... Blower Motor Measure resistance of blower motor Approx 274 ohms No Operation Normal thermal protector for magnetron or thermal protector for cavity Normal Operation Temporarily short across terminals of thermal protector for magnetron or thermal protector for cavity by using jumper lead No Operation Normal Operation PROBLEM 3 b Check operation of blower motor when START key is touched Check resis...

Page 13: ... Dual Grill Time D I R E C T A C C E S S EM G451 Time of day Grill Dual 150w Dual 450w Chilled Meal Liquid Jacket Potato Pizza Pork Chops Chicken Pieces Auto Defrost Down Up Timer Weight 100 150 450 700 850 1000 Power Delay Start Start C Clear Stop 100 150 450 700 850 Auto Start Def Time 1000 Runs Runs Check resistance of heater Approximately 41 7Ω measured over both tubes Set power level at low T...

Page 14: ... 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 cm2 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...

Page 15: ...e the hooks one by one 4 To detach the glass door panel insert a thin flat 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 damaged when they are removed When re installing them replace them with new ones if they are damaged After installing the door in place check for microwave energy...

Page 16: ...18 617 170 5058 Cook Net L 1 19 411 010 5600 SCR EVR PAN 3x6 1 Key Part No Description Q ty No 1 617 220 4376 Cabinet 1 2 411 156 5601 SCR TPG PAN F S 4x10 7 3 MO A0730 Cavity 1 4 MO S1121 Gear Motor 1 5 411 001 6005 SCR S TPG PAN 4x8 2 6 MO R0132 Special Washer 1 7 617 184 7659 Turntable Shaft 1 8 617 215 9560 Roller Base Ass y 1 9 617 167 1421 Glass Tray 1 10 MO A0737 Antenna Complete 1 11 617 1...

Page 17: ...pacitor Band 1 9 MO S0856 Capacitor 1 14uF 1 10 MO S0947AS Diode Ass y 1 11 617 234 1934 Lead Wire Ass y 1 12 617 182 2915 HV Fuse 1 13 617 229 3769 Blower Motor 1 14 MO S1118 Magnetron 1 15 617 112 1025 Fan 1 16 MO M1211 Duct 1 EM SL20N Key Part No Description Q ty No 17 617 195 3428 Latch Lever 1 18 617 189 0839 Lever Stopper 1 19 617 244 0651 Door Sensing Switch 1 20 617 244 0644 Interlock Moni...

Page 18: ...former 1 2 617 225 1721 Special Screw 2 3 617 225 6153 Bottom Plate Assembly 1 4 Gear Motor Cover 1 5 617 144 5435 Foot Cushion Assembly 4 6 617 166 7493 Bottom Hinge 1 7 411 156 5602 SCR S TPG PAN F S 4x10 1 8 617 102 7495 Special Screw 2 17 1 3 4 5 8 6 7 EM SL20N 2 2 ...

Page 19: ...inge 1 4 617 167 1292 Choke Dielectric 1 5 617 195 3411 Door Latch 1 6 617 101 1494 Spring 1 MO A0756 Door Assembly 1 18 3 2 4 6 5 EM SL20N Inner Door Panel always supplied with Door Main Frame but can be ordered seperately quoting number below NB Please refer to the detailed instructions for door setting on page 14 of the service manual before changing adjusting or repairing these parts 1 ...

Page 20: ... 197 4836 PCB Complete 1 7 617 181 7980 Latch Lever 1 8 MO A0747 Handle Assembly 1 9 617 188 3329 Spring 1 10 617 224 1067 Knob Assembly 1 11 411 064 6608 SCR TPG BIN 3x8 11 12 617 231 3047 Special Nut Metal 1 MO P5257 Operating Instructions EES 1 MO P5276 Carton Box 1 19 9 1 2 8 These items not illustrated CONTROL PANEL PARTS EM SL20N 3 11 4 7 6 10 12 11 13 ...

Page 21: ...10 CONTROL CIRCUIT BOARD EM SL20N Model Spares No RL3 M Processor EM SL20N 617 224 0275 Yes IC11 LM8842 24 ...

Page 22: ...560K D101 C101 1µ 50V R102 10K ZD101 RD3 9 ESB2 R101 1K RST 35 RL2 OPEN 7 8 TIMER SW SW BOARD 12700 OPEN OPEN OPEN OPEN OPEN LED1 LED2 LED3 LED4 LED5 R152 10K R151 390Ω R153 1 2K Q151 A564A 27 P77 15V 3 4 34 5V P67 AN7 P66 AN6 P70 R52 12K R54 12K R56 12K 37 36 P80 P81 OPEN OPEN 5V 4 23 12 OPEN OPEN C1 C2 1 100 OPEN OPEN 33 32 31 30 29 28 OPEN OPEN OPEN OPEN OPEN OPEN P71 P72 P73 P74 P74 P75 P76 P2...

Page 23: ...e information that appears in this service manual was correct at the time of production SANYO Electric Company reserves the right to make changes to parts or processes in order to maintain their policy of continuing improvement ...

Search results

Summary of Contents for EM-D9552NECO

Reviews:

Related manuals for EM-D9552NECO

Brands by name

Popular brands

Sanyo EM-D9552NECO, Service Manual

Search results

Summary of Contents for EM-D9552NECO

Reviews:

Related manuals for EM-D9552NECO

Brands by name

Popular brands