Garland EM-C180 User Manual download pdf (Page 3)

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- TABLE OF CONTENTS -

Adjustment Procedures............................................. 1

Specifications............................................................ 2

Power output Measurement ...................................... 2

Precautions and Repair Service Tips ....................... 2

Circuit Diagram ......................................................... 3

Test Procedures and Troubleshooting...............4 •`10

Disassembly Instructions .............................. 11 •`14

Exploded View and Parts List ........................ 15•`22

Overall Circuit Diagram.................................23 •`25

1. ADJUSTMENT PROCEDURES

TO AVOID POSSIBLE EXPOSURE TO MICROWAVE

ENERGY LEAKAGE, THE FOLLOWING ADJUST-

MENTS OF THE INTERLOCK SWITCHES SHOULD

BE MADE ONLY BY AUTHORIZED SERVICE PER-

SONNEL.

The service center should have the designated

detector to measure the microwave energy

leakage after the repair or adjustment.

NOTE: Detector to be used at the service center is

NARDA 8100, 8200 or the equivalent.

INTERLOCK SWITCH, INTERLOCK MONITOR

SWITCH AND DOOR SENSING SWITCH ADJUST-

MENT

(Figure 1)

(1) Loosen 2 screws securing the lever stopper.

(2) Adjust the lever stopper position so that it is pushed

up and pulled backwards until there is zero gap

between the latch lever and the switch body on the

interlock switch. At the same time there is zero gap

between the latch lever and the switch body on the

door sensing switch when the 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, according to “CHECKOUT

PROCEDURE FOR SWITCHES” on page 6.

(5) Make sure the interlock monitor switch opens

before the interlock switch closes when the door is

closed very slowly, according to CHECKOUT PRO-

CEDURE FOR SWITCHES” on page 6.

(6)(i) Make sure the microwave energy leakage should

be no greater than 4 mW/cm

to allow to measure-

ment uncertainty when measured with a detector.

(All service adjustments must be made for mini-

mum microwave energy leakage readings.) (For US)

(6)(ii) Make sure the microwave energy leakage is

below the limit of 1 mW/cm

(at 275cc water load),

5 mW/cm

(at no load) and 5 mW/cm

(at 275 cc

water load without cabinet) when measured with a

detector.

(All service adjustments must be made for minimum

microwave energy leakage readings.) (For Canada)

NOTE: If the interlock monitor circuit operates and at

the same time the fuse blows with the door

open, be sure to replace the relay circuit board

, Interlock switch and monitor switch.

Interlock monitor

switch

Lever stopper

Latch Lever

Interlock

switch (Secondary

interlock switch)

Latch Lever

Door sensing

switch

(Primary interlock

switch)

Figure 1

Screws

1 2 3 4 5 6 7 8 ... 27 28

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