- TABLE OF CONTENTS -
Adjustment Procedures | 1 | Test Procedures and Troubleshooting | 4 •`10 | ||
Specifications | 2 | Disassembly Instructions | .............................. | 11 •`14 | |
Power output Measurement | 2 | Exploded View and Parts List | 15 •`22 | ||
Precautions and Repair Service Tips | 2 | Overall Circuit Diagram | 23 •`25 | ||
Circuit Diagram | 3 |
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1. ADJUSTMENT PROCEDURES |
| (All service adjustments must be made for minimum | |||
TO AVOID POSSIBLE EXPOSURE TO MICROWAVE | microwave energy leakage readings.) (For Canada) | ||||
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ENERGY LEAKAGE, THE FOLLOWING ADJUST- |
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MENTS OF THE INTERLOCK SWITCHES SHOULD | NOTE: If the interlock monitor circuit operates and at | ||||
BE MADE ONLY BY AUTHORIZED SERVICE PER- | |||||
the same time the fuse blows with the door | |||||
SONNEL. |
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| open, be sure to replace the relay circuit board | ||||
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The service center should have the designated |
| , Interlock switch and monitor switch. |
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detector to measure the microwave energy |
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leakage after the repair or adjustment. |
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NOTE: Detector to be used at the service center is |
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NARDA 8100, 8200 or the equivalent. |
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INTERLOCK SWITCH, INTERLOCK MONITOR |
| Lever stopper | |||
SWITCH AND DOOR SENSING SWITCH ADJUST- |
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MENT |
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(Figure 1) |
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| Interlock monitor | ||
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| switch |
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(1) Loosen 2 screws securing the lever stopper. |
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(2) Adjust the lever stopper position so that it is pushed |
| Latch Lever | |||
up and pulled backwards until there is zero gap |
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between the latch lever and the switch body on the |
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interlock switch. At the same time there is zero gap |
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between the latch lever and the switch body on the |
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door sensing switch when the door latch is securely |
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locked. |
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(3) Tighten the lever stopper screws securely. |
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| Interlock |
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(4) Make sure the interlock monitor switch closes |
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| switch (Secondary | |||
after the interlock switch opens when the door is |
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| interlock switch) | ||||
opened very slowly, according to “CHECKOUT |
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PROCEDURE FOR SWITCHES” on page 6. |
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(5) Make sure the interlock monitor switch opens |
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before the interlock switch closes when the door is |
| Latch Lever | |||
closed very slowly, according to CHECKOUT PRO- |
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CEDURE FOR SWITCHES” on page 6. |
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(6)(i) Make sure the microwave energy leakage should |
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be no greater than 4 mW/cm2 to allow to measure- |
| Door sensing | |||
ment uncertainty when measured with a detector. |
| switch |
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(All service adjustments must be made for mini- |
| (Primary interlock | |||
mum microwave energy leakage readings.) (For US) |
| switch) |
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(6)(ii) Make sure the microwave energy leakage is |
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below the limit of 1 mW/cm2 (at 275cc water load), |
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5 mW/cm2 (at no load) and 5 mW/cm2 (at 275 cc | Screws |
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water load without cabinet) when measured with a | Figure 1 |
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detector. |
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