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COMPONENT            CHECKOUT PROCEDURE                                                   RESULT

TOUCH KEY
BOARD

                                          CHECKOUT PROCEDURE FOR SWITCHES

 Disconnect the lear wires from the switches and check for the continuity of the switches, connecting an ohm-meter
 to its terminals.

    

SWITCHES

(SEE Figure 1 on page1)

CHECKOUT PROCEDURES              DOOR OPEN                 DOOR CLOSED

INTERLOCK SWITCH

DOOR SENSING SWITCH

INTERLOCK MONITOR

SWITCH

Terminals”COM”and “NO”

Terminals”COM”and “NC”

Caution: After checking the switches, make sure that the interlock monitor switch is properly conncted according

             to the CIRCUIT DIAGRAM on page 3.

When        When not
touched     touched
Less than  More than
1 K ohms  1 meg ohms

Resitance
Value

When checking the         key,
connect the ohm-meter as illustrated
below.

Measure the resistance between terminals of FPC
connector after removing it from S101. (Figure 10)

NOTE

- When reconnecting the FPC connector, make sure
the holes on the connector are properly inserted in
hook of the plastic fastener in S 101.

MATRIX CIRCUIT FOR TOUCH KEY BOARD

FPC CONNECTOR

TERMINAL OF FPC CONNECTOR

FIGURE 10

Содержание EM-C1100SD

Страница 1: ...rvice test or inspection within the microwave generating compartments check the magnetron wave guide or transmission line and cavity for proper alignment integrity and connections d Any defective or misadjusted components in the interlock monitor door seal and microwave generation and transmission systems shall be repaired replaced or adjusted by procedures described in this manual before the oven...

Страница 2: ...s after the primary switch opens when the door is opened very slowly according to CHECKOUT PROCEDURE FOR SWITCHES on page 6 5 Make sure the interlock monitor switch opens before the primary interlock switch closes when the door is closed very slowly accoding to CHECKOUT PROCEDURE FOR SWITCHES on page 6 6 Make sure the microwave energy leakage is below the limit of the reguration 5 mW cm2 when meas...

Страница 3: ...inter lock monitor switch operate properly Listen for the clicking sound from switches Make sure the interlock monitor switch is closed after the interlock switch and door sensing switch are open when the door is opened See pages 1 and 6 b Make sure the perforated screen and the choke dielectric of the door are correctly mounted 2 After the power is applied a Open and close the door to see if the ...

Страница 4: ...T DIAGRAM Caution The voltage between filament leads of magnetron is about 3 3VA C but the the filament carries 4 KV DC high voltage with respect to ground Never touch these leades with bare hand during operation ...

Страница 5: ...scale Normal reading Less than 1 ohms 2 Check for resistance Between each filament ter minal of the magnetron and the chassis ground with an ohm meter on highest scale Normal reading Infinite ohms HIGH VOLTAGE TRANSFORMER 1 Measure the resitance with an ohm meter on R x1 scale a Primary winding b Filament windund c Secondary winding 2 Measure the resistance with an ohm meter on highest scale a Pri...

Страница 6: ...y shows more than 0 ohms or inifinite ohms even in a forward direction because the low measuring voltage of the meter does not allow the meter to pass through the high voltage Use an ohm meter with a 9 V battery Abnormal reading Indicate continuity or infinite ohm in both directions Figure 9 FUSE DIODE Measure the resistance Across two terminals with an ohm meter on highest scale Measure the resit...

Страница 7: ...ter checking the switches make sure that the interlock monitor switch is properly conncted according to the CIRCUIT DIAGRAM on page 3 When When not touched touched Less than More than 1 K ohms 1 meg ohms Resitance Value When checking the key connect the ohm meter as illustrated below Measure the resistance between terminals of FPC connector after removing it from S101 Figure 10 NOTE When reconnect...

Страница 8: ...removing the wire reads from the pri mary windings of the high voltage transforemer CONTROL Measure the voltage Between test points TP 1 TP 2 P C B TP 3 TP 4 and ground TP 5 and Tp 6 See figure 17 on page 22 NOTE Test point Proceeding with the check of the control P C B to TP Voltage V see if any one of the measured values is different from the specified values TP 1 DC 5 TP 2 DC 12 TP 3 DC 15 TP 4...

Страница 9: ...Fuse diode Shorted Replace H V Capacitor Shorted Replace No display Control circuit Voltage Replace cooking time board incorrect See page7 Touch key board Resistance Replace See page6 Incorrect Door sensing No continuty Replace switch See page 6 Cooking ope ration wiil not start Interlock switch No continuty Replace See page 6 Control sircuit No continuty Replace board See page 7 and 22 Note Oven ...

Страница 10: ...when the power cord is unplugged E 31 Thermistor on top of cavity or magnetron is shorted Oven stops heating Check short circuit of thermistor Buzzer does not beep itself or wire insulation of thermistor Blower motor will stop This error function will be cancelled immediately when the power cord is unplugged E 32 Thermistor on top of cavity or magnetron is opened Oven stops heating Check open circ...

Страница 11: ... 4 screws securing the control circuit board Then lift up the control circuit board its left side and and take out from the control base D REMOVING TOUCH KEY BOARD After removing control circuit board 1 Release 4 hooks holding the Cover asembly 2 Remove the touch key board which is held on the control base with the adhesive tape from the front of the control base E REMOVING TIME CONTROLLER After r...

Страница 12: ...ill be cleared HINT FOR LAMP CHANGE Before removing the bulb access panel pull out the main plug Change the faulty bulb and secure the bulb access panel Plug the cord back in and check operation H CHANGING POWER SUPPLY CORD For EM C1100SD See exploded view on page 18 1 Unfasten 1 screw for ground and pull out the 2 wires of the power cord from the noise filter 2 Remove 1 screw for the bottom plate...

Страница 13: ...e ene rgy leakage with a leakage detector Microwave energy leakage must be below the limit of 5 mW cm2 K RELEASING TYPE CONNECTOR This oven is provided with locked type connectors When you remve a connector pull the connector while releasing the lock by pressing A point shown below Do not pull the wire of the connector Figure 16 Figure 15 Figure 14 Figure 13 A A A S105 Connetor S 1 102 103 106 Con...

Страница 14: ... 13 Insertion of Thermistor assembly to the Magnetron Magnetron Thermistor Assenbly Insert the Thermistor Assy on the 3rd fin of the Magnetron Waveguide ...

Страница 15: ... 14 L ADITIONAL FUNCTIONS ...

Страница 16: ...d by key operations See page 13 for more information the following consumable components should be replaced Maintenance light in window display indicates when accumulative cooking time reaches 1 250 hours Light 1 Magnetron Tube Part No 415 002 6804 2 Printed circuit board Part No 617 229 7842 3 Switch base Assembly 617 231 0213 This consist of parts listed on the Main body parts Key No 25 thru No ...

Страница 17: ...dy parts Parts marked with this sign are supplied with high voltage exceeding 250V Parts marked with this sign have special Characterstics important for microwave leakage When replacing any of these parts use only Manufacturers specified parts ...

Страница 18: ...sign are supplied with high voltage exceeding 250V Parts marked with this sign have special Characterstics important for microwave leakage When replacing any of these parts use only Manufacturers specified parts 18 13 SD 14 SD SD ...

Страница 19: ...ith this sign are supplied with high voltage exceeding 250V Parts marked with this sign have special Characterstics important for microwave leakage When replacing any of these parts use only Manufacturers specified parts ...

Страница 20: ...1 14 617 140 1349 BOTTOM BRACKET FOR SD LGD T1 2 60160 1 15 617 231 0237 HARNESS WITH H V DIODE 1 16 617 224 9025 CAPACITOR MATUSHITA 1 26 2300W 1 17 617 234 0913 CORD ASS Y FOR SD 1 18 617 234 0920 CORD ASS Y FOR UK 1 19 617 078 3132 CORD BUSH FOR UK 1 20 617 125 3832 BOTTOM BRACKET FOR UK 1 21 402 061 1505 CERAMIC RES 25 J 20W MTST ERF 20HMJ250 1 22 617 228 2084 P C B COMP NOISE FILTER N F PCB 1...

Страница 21: ...4 4249 SPACER 1 41 617 121 9265 CLIP 2 42 617 212 8535 ANTENNA BEARING PFA 1 43 617 231 0091 GEAR MOTOR 1 45 617 178 3124 H V TRANSFORMER N5T C2000SD 1 46 617 080 4196 SPECIAL SCREW 2 47 412 006 9800 SCR TRS 4X12 1 48 617 195 1295 SPECIAL WASHER BRASS T1 0 NI PLATIN 1 49 411 055 0202 NUT HEX 5 1 50 617 080 5186 SPECIAL WASHER SPG T1 0XD5XD13 1 51 617 080 5179 SPECIAL WASHER 2 52 617 080 3830 SPECI...

Страница 22: ...R ASS Y 1 6 617 228 9809 DOOR PANEL 1 7 617 178 0840 CHOKE DIELECTRIC FR PET 1 8 617 178 0833 LATCH SUP SECC J T1 0 1 9 617 068 3579 ARM PIN S30C ZK 2 10 617 140 5392 SPRING SWP B D1 1 2 11 617 068 1087 DOOR LATCH DURACON GF25 2 12 617 120 3028 HINGE SPHC T3 2 13 617 201 9697 DOOR HANDLE AL 1 14 411 089 2500 WASHER F 5X10X0 8 2 15 617 068 3623 DOOR ARM 1 16 617 080 3847 SPECIAL SCREW SUS 304 D6 1 ...

Страница 23: ...cription Spec Q ty 1 617 224 8745 KNOB ASS Y 1 2 617 231 0435 COVER ASS Y 1 3 617 230 1860 KEY BOARD 1 4 617 231 0145 CONTROL PLATE T3 0 1 5 617 231 0152 CONTROL BASE ABS 1 6 617 230 0177 P C B COMP DISPLAY D BOARD 1 7 617 233 0396 FLAT CABLE UL20706 L160 14PBNCD 1 8 617 230 0191 P C B COMP TIME CONTRO SW BOARD 1 9 617 231 0183 PARTS BASE SECC T1 0 1 10 617 229 7842 P C B COMP CONTROL C BOARD 1 11...

Страница 24: ... 23 CONTROL CIRCUIT BOARD Figure 17 Ground Tp 3 Tp 1 Tp 2 Tp 6 Tp 5 Tp 4 ...

Страница 25: ... 24 9 OVERALL CIRCIUT DIAGRAM ...

Страница 26: ... 25 ...

Страница 27: ... 26 ...

Страница 28: ... 27 Mar 2000 SANYO Electric Co Ltd OSAKA JAPAN ...

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