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FORM # EM-C180 (02/05)

SERVICE MANUAL SUPPLEMENT

for Model EM-C180

Microwave Oven

CAUTION

  WARNING  TO SERVICE  TECHNICIANS

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING

    SERVICING TO AVOID POSSIBLE EXPOSURE TO

EXCESSIVE MICROWAVE ENERGY

(a)   Do not operate or allow the oven to be operated with the door open.
(b)   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.
(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 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 released to the owner.

(e)(i) A microwave leakage check to verify compliance with the Federal performance standard should be
       performed on each oven prior to release to the owner. (For U.S.A)
(e)(ii) A microwave leakage check to verify compliance with the Canadian Regulation, HEALTH AND WELFARE,

SOR/79-920 should be performed on each oven prior to release to the owner. (For CANADA)

  SUPPLEMENT OF
  SERVICE MANUAL      

Microwave Oven

EM-C160US

REFERENCE NO.

SM-640180

See the Service Manual of 

EM-C180US(SM-640179)

except the items described in this Service Manual.

PRODUCT CODE NO.  437-453-00

CAUTION

  WARNING  TO SERVICE  TECHNICIANS

PRECAUTIONS TO BE OBSERVED BEFORE AND DURING

    SERVICING TO AVOID POSSIBLE EXPOSURE TO

EXCESSIVE MICROWAVE ENERGY

(a)   Do not operate or allow the oven to be operated with the door open.
(b)   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.
(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 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 released to the owner.

(e)(i) A microwave leakage check to verify compliance with the Federal performance standard should be
       performed on each oven prior to release to the owner. (For U.S.A)
(e)(ii) A microwave leakage check to verify compliance with the Canadian Regulation, HEALTH AND WELFARE,

SOR/79-920 should be performed on each oven prior to release to the owner. (For CANADA)

  SUPPLEMENT OF
  SERVICE MANUAL      

Microwave Oven

EM-C160US

REFERENCE NO.

SM-640180

See the Service Manual of 

EM-C180US(SM-640179)

except the items described in this Service Manual.

PRODUCT CODE NO.  437-453-00

Содержание EM-C160

Страница 1: ...CE NO SM 640180 See the Service Manual of EM C180US SM 640179 except the items described in this Service Manual PRODUCT CODE NO 437 453 00 CAUTION WARNING TO SERVICE TECHNICIANS PRECAUTIONS TO BE OBSE...

Страница 2: ...n the area emitting the highest reading switch the meter to SLOW RESPONSE and take a reading for minimum of three 3 seconds We recommended the pattern outline shown below when the door surface is surv...

Страница 3: ...e door latch is securely locked 3 Tighten the lever stopper screws securely 4 Make sure the interlock monitor switch closes after the interlock switch opens when the door is opened very slowly accordi...

Страница 4: ...ke dielectric or the door seal is dam aged d The door is bent or warped or there is any other visible damage to the oven that may cause microwave energy leakage Note Always keep the seal clean e Make...

Страница 5: ......

Страница 6: ...en each 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 sca...

Страница 7: ...Abnormal reading Indicates continuity or 10 meg ohms from the beginning Normal reading Indicate about middle position in one direction forward and infinite ohms in the reverse direction using ohm mete...

Страница 8: ...K ohms 1 meg ohms When checking the POWER key connect the ohm meter as illustrated below SWITCHES SEE Figure 1 on page 1 CHECKOUT PROCEDURES DOOR OPEN DOOR CLOSED INTERLOCK SWITCH DOOR SENSING SWITCH...

Страница 9: ...2 TP 3 and ground See figure 16 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 CHECKOUT PROCEDURE RESULT N...

Страница 10: ...6 Power circuit board See page 7 Control circuit board See page 7 Cooking ope ration will not start Oven does not heat up Door sensing switch See page 7 Interlock switch See page 7 Control circuit boa...

Страница 11: ...not touched within 1 minute after the door is opened or closed Oven stops heating Buzzer continuously beeps Blower motor will stop immediately Oven stops heating Buzzer does not beep Blower motor will...

Страница 12: ...is warm in the following positions 1 Put your hand near the exhaust duct outside of the rear plate to feel the exhaust Never remove the cabinet and rear plate from the oven for your safety when you pu...

Страница 13: ...ge 1 when the primary and secondary interlock switches the relay RL 3 and RL 4 or the interlock monitor switch is adjusted or replaced If the interlock switch the relay RL 3 and RL 4 or the interlock...

Страница 14: ...it of 5mW c u For US After instaling the door check for microwave energy with a leakage detector and confirm that the leakage is the below the limit of 1 mW cm2 at 275cc waterload 5 mW cm2 at no load...

Страница 15: ...uzzer on Press START key All 4 digits will be flashing Press START key again The number 215 shows total cooking time in hours When number key other than 1 or 2 is pressed at step 4 0 appears in displa...

Страница 16: ...ion the following consumable components should be replaced Maintenance light in window display indicates when accumulative cooking time reaches 1 250 hours 1 Magnetron Tube Part No 415 002 6408 2 Prin...

Страница 17: ...nt have special characteristics for safety and must be replaced using parts listed in this manual All service on M W ovens should be performed by a qualified technician using approved testing equipmen...

Страница 18: ...istics for safety and must be replaced using parts listed in this manual All service on M W ovens should be performed by a qualified technician using approved testing equipment Customers should not at...

Страница 19: ......

Страница 20: ...characteristics for safety and must be replaced usnig parts listed in this manual All service on M W ovens should be performed by a qualified technician using approved testing equipment Customers shou...

Страница 21: ...istics for safety and must be replaced using parts listed in this manual All service on M W ovens should be performed by a qualified technician using approved testing equipment Customers should not at...

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Страница 28: ...C Inside Wiring of Switches Monitor switch Interlock switch Door sensing switch Orange C Brown White Yellow Purple Purple Blue NC Inside L i g h t Blue Orange White Pink NO Inside NO NC White FRONT F...

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