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- 11 -

F. CHANGING POWERSUPPLY CORD
   (See exploded view on page 15)
   (1) Unfasten 1 screw for earth and pull out 2 wires
        of power cord from terminal plate.
   (2) Remove1 screw for bottom bracket  of cord
        bushing.
   (3) install the new power supply cord with reverse
        procedure of above (1) to (2).

WARNING:
   For the changing the power supply cord, never
   use other than following.

Key No. Order No.                     Parts Name

4     617 208 1076  Power cord Ass’y(Germany)
5     617 196 9184  Power cord Ass’y(UK)
6     617 078 3132  Cord bush (UK)
7     617 140 1332  Cord bush (Germany)
39    617 125 3832  Bottom bracket (UK)
40    617 140 1349  Bottom bracket (Germany)

G. REMOVING CERAMIC  TRAY ASS’Y

(See Fig.11 )
(1) Take off the cabinet.
(2) Put (insert) a screwdriver in the 9 mm diameter

hole locating at lower hinge of left side of the
oven cavity. And push the tray up with the screw-
driver.

(3) Open the door and take out the tray very care-

fully.

H.REMOVING DOOR

  Remove 2 hex nuts securing the upper hinge,
  remove 3 hex nuts securing the lower hinge and
  remove1 special screwsecuring the door  arm
  (located at the bottom of the door sash).

NOTES
-  After replacing the door, be sure to check that the
   primary interlock switch, the door sensing switch
   and the interlock monitor swich operate normally.
   (See pages 1 and 7)
-  After replacing the door, check for microwave ene-
   rgy leakage with a leakage detector. Microwave
   energy leakage must be below the limit of
   5mW/c

‡u.

I.HOW TO RESET THE MEMORY OF ACCUMU-
  LATIVE COOKING TIME

1. Push the keys step by step as follows,
   Turn the Timer Knob to left until display shows“0”.
   Touch START key first and also touch POWER
   SELLECTION key (1800W) until display changes.
   The display will show accumulative cooking time
   in the display window.

2. Then push the POWER SELLECTION key(1800W)
    during cooking time appear in the display.

3. Push the POWER SELLECTION key(1800W) for
    4 seconds continuously.
    Accumulative cooking time will be cleared.

J.CAUTION FOR CUSTOMER ON OPENING
   AND CLOSING DOOR
 
  When the Microwave oven is in operation, should
   the customer open the door slightly and close, the
   breaker of the house will occasionally be cut off.
   It is necessary to explain to the customer not to
   exercise such matter.
   When the Door is opened slightly between 2 or 3
   mm distance, primary interlock switch turn OFF,
   and operation stops.
   However door sensing switch will remain ON, and
   if door is closed, primary interlock switch activates
   and operation resumes immediately.
   At such time microwave oven  will start any time.
   Therefore a big In-rush currnet flows, and thus
   Breaker will be cut off.

                        Figure 11

Screw driver

Door

Hole

Содержание EM-C1800MK

Страница 1: ...ce 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 is...

Страница 2: ...o CHECKOUT PROCEDURE FOR SWITCHES on page 6 5 Make sure the interlock monitor switch opens be fore the primary interlock switch closes when the door is closed very slowly according to CHECK OUT PROCEDURE FOR SWITCHES on page 7 CAUTION MICROWAVE RADIATION PERSONNEL SHOULD NOT BE EXPLOSED TO THE MICROWAVE ENERGY WHICH MAY RADIATE FROM THE MAGNETRON OR OTHER MICROWAVE GENE RATING DEVICE IF IT IS IMPR...

Страница 3: ...isten for the clicking sound from switches make sure the interlock monitor switch is closed after the latch interlock switch is open when the door is opened See pages 1 and 8 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 interlock mechanism operates properly b Check microwave energy ...

Страница 4: ... 3 ...

Страница 5: ... filament terminal of the magnetron and the chassis ground with an ohm meter on highest scale COMPONENT MAGNETRON HIGH VOLTAGE TRANSFORMER 1 Measure the resistance With an ohm meter on R x1 scale a Primary winding b Filament winding c Secondary winding 2 Measure the resistance with an ohm meter on highest scale a Primary winding to ground b Filament winding to ground CHECKOUTPROCEDURE RESULT Norma...

Страница 6: ...bout the middle position in one direct forward and infinite ohms in the reverse direction using meter with a 9 volt battery NOTE Some digital meter may show over even in a forward direction because low mea suring voltage of meter does not allow the meter to pass through the high volt age diode Abnormal reading Indicates continuity or infinite ohms in both directions FUSE DIODE Measure the resistan...

Страница 7: ...he connector S104 and S105 from the power circuit board c Plug the power supply cord d And then measure each voltage COMPONENT POWER P C B CONTROL P C B Measure the voltage Between test points TP 1 TP 2 TP 3 and ground See figure 14 on page 23 Note Proceed with the check of the control P C B to see if any one of the measured values is differ ent from the specified values CHECKOUTPROCEDURE RESULT N...

Страница 8: ... 7 ...

Страница 9: ...uity Replace Control circuit board See page 6 Voltage incorrect Replace Control circuit board See page 6 Voltage incorrect Replace H V Transformer See page 4 Resistance incorrect Replace H V Capacitor See page 5 Resistance incorrect Replace Magnetron See page 4 Resistance incorrect Replace Monitor switch See page 7 Contact on No continuity Replaceor Adjust Blower motor Shorted Replace Step down Tr...

Страница 10: ...lf diagnosis functions Display shows E depending on the trouble CONDITION TROUBLE CHECK RESULT REMEDY Shorted Replace H VTransformer Shorted Replace H V Capacitor Shorted Replace Magnetron Shorted Replace H V Diode Shorted Replace Fuse Diode Poor oscillation Replace Magnetron Low microwave output Rotation stop Repair or replace Rotation of top or bottom anttena Uneven heating U 10 Thermistor for M...

Страница 11: ...check the microwave en ergy leakage according to 1 ADJUSTMENT PROCE DURE FOR SWITCHES on page 1 when the primary interlock switch the relay 3 and 4 or the interlock moni tor switch is adjusted or replaced If the primary interlock switch the relay 3 and 4 or the interlock monitor switch operate properly deter mine which of the followings is defective control cir cuit board blower motor gear motor h...

Страница 12: ...rlock monitor swich operate normally See pages 1 and 7 After replacing the door check for microwave ene rgy leakage with a leakage detector Microwave energy leakage must be below the limit of 5mW c u I HOW TO RESET THE MEMORY OF ACCUMU LATIVE COOKING TIME 1 Push the keys step by step as follows Turn the Timer Knob to left until display shows 0 Touch START key first and also touch POWER SELLECTION ...

Страница 13: ... 12 ...

Страница 14: ...EXPLODED VIEW AND PARTS LIST Main body Parts 1 Parts marked with this sign have special Characterstics important for microwave leakage When replacing any of these parts use only Manufacturers specified parts ...

Страница 15: ...ith this sign have special Characterstics important for microwave leakage When replacing any of these parts use only Manufacturers specified parts Parts marked with this sign are supplied with high voltage exceeding 250V ...

Страница 16: ... 15 ...

Страница 17: ... 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: ...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 19: ... 18 ...

Страница 20: ... 19 ...

Страница 21: ... 20 ...

Страница 22: ... 21 ...

Страница 23: ... 22 ...

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