shunde Md Microwave Oven M7017X-Y Microwave Oven User Manual
shunde Md Microwave Oven Manufactory Co., ltd. Microwave Oven
User Manual
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| Document Description | User Manual |
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| Date Submitted | 2001-09-04 00:00:00 |
| Date Available | 2001-08-31 00:00:00 |
| Creation Date | 0000-00-00 00:00:00 |
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| Document Lastmod | 0000-00-00 00:00:00 |
| Document Title | User Manual |
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®idea®
MODEL: M7017X-Y
M6017X-Y
SERVHQHNG: MANUAL
PRECAUTIONS TO AVOID
POSSIBLE EXPOSURE TO EXCESSIVE
MICROWAVE ENERGY
A. Do not attempt to operate this oven with
the door open since open-door operation
can result in harmful exposure to microwave
energy. It is important not to deieat or
tamper with the salety interlocks.
E. Do not place any object between
oven IrDt'tt lace and the duor or allow
soil or cleaner residue to accumulate on
sealing surfaces.
C. Do not nnerate the oven ii it is damaged.
It is particularly imponanlvthall the oven door
close properly and thzat there' IS no damage to
the (1) Door (bent),( 2)hinges and latches
(broken or loosened) . )(3) door seals and
sealing suriaces.
D. The oven should not be adjusted or repaired
by anyone except properly qualified service
personnel.
SAVE THESE INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
When ugsng at Galapaliances. b ‘ safety
precautions should etollbwed including the lollowtno
‘NAP.NINC—— to reduce lhe risk ol burns. electrical
shock, fire injury to persons or exposure to excessive
microwave ensf 1‘
1. READ ALL r—lE INST RUCTIONS EE=ORE USING
THE APPLIANCE,
2. Head and iollow the specific “Fracautions to avoid
possrole exposure to excessive microwave energy'
found above.
This appliance must be grounded and properly
pola d. Connect only to a properiy grounded and
pole
. lnstall or too is appliance only in accordance
with the installation instructions described in this
manual.
. Some products such as whole eggs and sealed
containers. such as closed glass jars, may explode
and should not be heated in this even.
6. Use this appiianc= only for its intended use as
described in the manual Do not use corrosive
chemicals or vapors in this appliance. This type of
even is specifically designed to heat. cook. dry, or
defrost food. It is not designed ior industrial,
laboratory. or commercial use. It is intended lor
P’
is
home use only. Do not use lor drying clothes. linens,
newspaper. or similar non-load type items.
. Make sure that all persons using this appliance.
especially children. are closely supervised and
properiy instructed on how to use this appliance
8. Do not operate this appliance if it has a damaged
cot-ct or plug. . s not working properly, or it it has
been damaged or prepped.
This appliance should be serviced only by qua
service parsonuul. CuirtuLi It": rtcarcst auti-
(D
mm
outis’. Sac “Grounding Instructions" on page 3.
service facility tor evaminah'nn, repair or raplacament.
Do not attempt to service or repair this appfiance.
10. Do not cover or block any openings on the
11.
16.
appfiance. Do not store items on top of microwave
oven ii there are louvers on top oi oven.
Do not store this appliance outdoors. Do not
use this product ncar watch tor example, near
a kitchen sink, in a wet basement, or near a
swimming pool. and the like.
. Do not immerse cord or plug in water.
. Keep cord away from heated surfaces.-
14.
15.
Do not let cord hang over edge of table or counter.
When cleaning surfaces oi door and oven that
come together on ciosing the door. use only mild.
nona'orasive soaps or detergents applied with a
sponge or soft cloth.
To reduce the risk oi fire in the oven cavity:
a. Do not overmnk lnod, especially starchy
items such as potatoes and fatty items such
as bacon Carefully attend appliance if paper,
plastic or other combustible materials are
placed inside the oven to facilitate cooking
o. Remove wire twist-lies from paper or plastic
bag before placing bag in oven.
c. ll materials inside the oven should ignite. keep
oven door closed. turn oven oil. and disconnect
the power cord. or shut olt power at the fuse or
circuit breaker panel.
d. Do not use the cavity for storage purposes.
Do not leave paper products, cooking utensils.
or food in the cavity when not in use.
a. Do not put metal inside the oven. except as
specriically described In the manual or
cookbook il supplied with this oven.
TABLE OF CONTENTS
clause contents page
00 Introduction and Safety precautions
1 Introduction 1
2 Safety Precautions 2
3 Exploded Views 3
4 Schematic Diagrams 4
5 Parts List 5
1.0 Heating Principle of Microwave 6
2.0 Troubleshooting Procedures 7
3.0 Common breakdown and means of repairing 12
4.0 Critical Parts Servicing 13
1 important things to do prior to critical parts serwcmg 13
2 interlock assembly replacement and adjustment 13
3 door and hinge replacement and adjustment 13
4 magnetron replace ment 1 3
5.0 Safety checks and tests after servicing 14
1 constructional checks 14
2 insulation resistance test 14
3 microwave leakage test 15
INTRODUCTION
This Microwave Oven Service Manual is printed in a loose leaf format, Each part is
divided into sections relating to a general group of components and each section is
subdivided into various parts describing a particular component or service procedure.
The subdividing of the subject matter plus the loose leaf form will facilitate the updating
of the manual as new or revised components and service procedures are introduced.
Each page of this service manual will be identified in the lower right hand comer and as
new or revised pages are published it will be easy to keep the manual up to date by
following the filing instructions on the cover letter.
This Service Manual is a valuable service tool and care should be taken to keep it up to
date by prompt and proper filling of subsequent pages as they are issued.
SAFETY PRECAUTIONS
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID
POSSIBLE EXPOSURE To Excesstve MICROWAVF FNFRGY-
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 ).
t 4 ) Damage to or loosenlng of hinges and latches.
( 5 ) Evidence of dropping or abuse.
. 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.
. 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.
. A microwave leakage check to verify compliance with the Federal performance
standard should be performed on each oven prior to release to the owner.
. Operate the oven from a properly grounded AC outlet capable of supplying 120
volts at 15 amperes.
THIS MANUAL, AS WELL AS THE INFORMATION CONTAINED IN IT, IS TO BE USED ONLY BY
AN AUTHORIZED SERVICE TECHNICIAN FAMILIAR WITH AND KNOWLEDGEABLE OF
PROPER SAFETY AND SERVICING PROCEDURES AND POSSESSING HIGH QUALITY TEST
EQUIPMENT ASSOCIATED WITH MICROWAVE AND ELECTRICAL APPLIANCE REPAIR.
ALL INDIVIDUALS WHO ATTEMPT REPAIRS BY IMPROPER MEANS OR ADJUSTMENT,
SUBJECT THEMSELVES AND OTHERS TO THE RISK OF SERIOUS OR FATAL INJURY.
47“
MEIIA BGO'IdXEI
A‘XLLOQW A'XUOLIN 1'1EIGOW
THE HEATING PRINCIPLE OF MICROWAVE
Microwave is om: kind of radio wave wirnse wavelenglll is very shurl. lrequency is very high. ‘l’hertl'ore. ii is called ultrahigh
lrtquenry cleciromagnciic wave, Microwave can heat ilxlll mainly resuli in llic lnuiual allccl lil’ Ille load in ill: micnlwave field
and Ill: microwave field iisclll
under the nflecl of microwave field. ihe illcrlri-II elfecl mechanism produced Imm ilic mu|uz| aliect ol' the microwave and [he
food includes two “penis? Um: is Dielectric loss 0! plilm molcbule. the ulllcr is clmduclivc loss of ion.
Usually. load is constitute olmgunisnliplalil and anillliiih The organism is formed by all kinds of polar walcr molecule, polar
protein molecule. and all unis oi sail inn. The center or gravily «i llle posilivc and negative charge in (he mlrlccule is no! coili-
cldc. In normal fund on. Ilia mulwulc rr irregular order dill: Io ils IlllcrnlnI aclinn. Ihll! lhe (nod iii) no! appear polarity.
(Flel - Ills Under Ill: nclilm "I uulcr clecllic field. ill: posiilive end of Ih: pnlar molecule trend lrr llle negative elulric
field. [be negative end of polar liinleculr.‘ trend lo ill: pusiliv: electric field, and somewhat arrange in Miler through lire direr.‘
lion oI' lhe electric licld( FIGJ - it). This pliznmnemill usually be called "TORQUE POLARITY". when lire oultr electric
fidd apply inr lhc nppusire prdarily. ins polar nmleeuls liren Irrlmge an iipposlll: dirctlinn order uawdingiyl FIG. 1 — III). II
Ill: direclion ill ill: outer clnclrlc I‘leid changed repeaicilly. (In: polar molecule would repealadly away auorllingly. During the
«Myiusr ii is un‘lsrui-l-lllus llanl (in. pvl-r rnulwule luruhl |r|r.rl-Iu\i Ian-l dun. hr mnrre-lral nlrr-lla. rrieizun llamas Ihsm» Wire-r
._____'___
(b)
Fig] ‘I
llie electric field is applied [or ultrahigh frequent mitruvrav: field [mm (lie outside. its direction would change (all: billlnll
Iims per second. an do Illa molecule. is kind of molecule swaying producing similar [fictional heal from “K inleri‘mncc
and block or "re action slrcnglll among llre molecule. ilrlrl‘cllanucd in macroscopic nrlcmwav: heating. Microwave healing noi
llllly conumul ill: nature of Ill: nlaltcr "sell. bill also ckls‘n‘lly conilocleil will! (Ill: clcclrlc field slunglh anll lrequency. When
llle l'rzqueney is lnw, the molecule swaying rare and Ill: ncuie degree at "it malnal friction among lire molecule ll low, and
would produce muelr lie-t. wnen lire frequeney is ion high. us the swing of lire polar molecule is will. running ins it made
the awln| do not In line wilIl lire changing rhylhlll or line electric field because nr Ille irlsiiur. drag. ilrus. actually lowed lire pn-
lar lrlnleclile swaying spud. The I’ritlion dragging degrlw in concerning ahoni tile maznclcctric wave Ircqllcncy. polar mokflllc
shape, and (he miner's sticky degrees To dillcuni mnilur's molecule. there are dillerenl special [requnncy mile. Those aim
illlsorb microwave energy from lliesc zone are mosi taplhlc in mm icmwavi: energy In Ileni energy.
Apart Irom llle lbuve said aclion. there 1: another ICIilIII wl ii is electric ion and" (lie ncliurr uf micrlrwrlve field. acl “truly
accompanied wlin lire acceleration nl eleenie l'lellli Tire pus ve loll iransler In line nepiire pniariry er are field while «he neg-
ative ion do mpusile. Accompaning with llle changing tlccirl! Held. in: claim: Ion changing accordingly. During in: inns»
(wring. hul produced will! (Ila crash among the Inn. This kind of action rake illl: main effect (l- more microwave healing of
high salt mnleculc.
Nu ran-nu ii Is ilre InIal mulgculc swnyln. m lire ion irnnsrerlng. use, bolll nr: turnin‘ lire microwave energy wll' lr ihe hub
illg matter not from llie nllcrwwnv; field in lint snug ml “It analnala uf Illeliry. we can draw lunch a meld-inn that the
power which a null or volume mailer absorbed from the microwave field as the following lonlulai
I'- - KE marina
P: stand: for the power llle healed mailer absorbed llorn the microwave field.
K Stands for a unllanl
E Stand for microwave field slrcnglh
l sand: (or the microwave ireqoeuey.
IRB Stand: for loss anal: lam-ll ill the healer! mailer.
TROUBLESHOOTING PROCEDURES
Belatevui’lillllh‘ 1 MI" Wren. you llionltl ltd“ the unknown Ind tin unl- mull]. “an ylli an Kl.“ It with
1mm van. The wuhaulhu nun he penned In order. any haaiy cuneluliun is not rmentialle. otherwise over-
workluwnultl be done when weir. The mien-inn" m may neeur munund hreahdtrvrl tin In all hind! at different
"um. ism, whe- mhnnl, they m nth-nu he uk- tnm mitts-nan. Special nun-nun mat is- uun In this Minn-Iv!
leakage and the electric lnlulaiian when examine been-ire they may dc harml‘ui in the repelling lintl‘.
i 4 MEANS OF THE BREAKDOWN BxAhiiNiNG.‘
How in examine- mist-”rave urea with Mann! A better meant which demonstrated In practical war-tin. are thmgh
inspecting and listening. On the hula of large amwnu of perceptual knurled“. you can judge and mini: the Imat- '
Mn quickly and wreeti.
inapeetiun. . 4
lupeet whether the men shape is dinette-ed and where ll the disordered position. itauy. it I: normal ii‘ the ublmt
diam-tenet! a little. but abnhrrnal It the oven. the that dhordered. the tiaor hoult hmken. ihe door mom. or there are
too much lance-ten between the door and the oven alter the duct I: cluedt
. umnlnp
urtenln; to the voice at the oven nperailn; and the noise or the [an alter it tau-ducted. Mime "wen wen" min. cycllnl
‘hll' mile Ind ”lhilhl' not“ should he consider ll normal. Bill it I! abnormal ii tin loilowin. nail. mud:
(1) Sound "|'en wen" notret ,
(Z) butt! time "thilhi' noile.
' (J) smite vol“ uti- “mu. mu",
I . SPOT ExAMiNiNG STEPS OF THE MICROWAVE OVEN.
I.
Examine the mum-u insulating resistance.
Menu" the Anni-tail“ rulttnnen nun . avmneter or u whim-meter Ill: value alumni-I not lea: than 2 meg-ohm. on.-
enrile. part eatninntiun thwld be taken at once. Such at checkinl whether the motor. the thermal cutmit. the tram-
ianur or the capacitor are electricity ieeltln|.
Ellllllllllltll d ill= rflhtnmc volt” ol the autism-v- “an
cue the m. m the ume, (the Men 1, n operatinl eondliinn but the puwer pin; havn't been pinned in). m“
the two leer (L- N) at the pant plug with n x I grade at a "milder. the relixtlnee value lhwid be about 2.5 ohm.
I! open elreull nccured. then you must check whether the IA iuse il hmitent the primary winding u! the transhmnet in
open circuit. the thermal cutout il wen circuit or not. you mint cheek whethet' the interiuck device (I put throuut of
all the plug! an connected wellt li slut! circuit Retired or the retirinnee leu than 1.5 ohm, you should check whether
the primary windln| hi the power transit-tamer it shut - eireuiteti or part that! — zlreulied.
. Examination of microwave tut-re.
Meal-ire the microwave leakage with n mienmnre leakage measure. Place a graduate of 275ml water at the middle of
the gin: tray oi the oven (FlG.5 - l ). Clare the dew. power set high. time let tn 3 minutes. area the tuning button
to agents the oven. Alter recitli‘ieti the miernwave leakage measure. meuure amumi the dour crncit. time hole pal.
lion oi the window Ind the air valit at [out tide! of the oven with the pruhe oi the menaure. when manure. the mnrin;
apud ill ilil' pmbe should not closed 15mm per second. and the nierlurin; dituiififl should be the same wiih the outing
dimllnn of th‘ mum-nu tuna (m0.s - 2).
when mellurinl. the ultimate value at murmur-re Inkage at all the "tenured position lhouid not exceed l mllltwattl
em'. or lhnuiti be widened as ahimtnai.
. Examine when the oven at wanting. but the food hn‘t be healed.
(l) Examine when the inmp in on. the lien tray il cycling. the‘ian opening in normal:
T-kn all the uhlnet. starting the oven. meuun the plug of the irlntl‘orrner with a arorneter to see whether it is e-
notuli in 120v. it it is enough to 12th. then the monster] hilh vnlinle oi’ the "autumn lhtmld be examined a:
FIG-S‘S.
Measure it with the ZSODV alternating grade of model 500 evometer. One rod of the evometer urn-meet the iron core
of the transformer. the other rod connect the xeeomlnry high voltnge plug (FIG. 5 - 4). The avometer reading
ehould be about ZIMV (when measure. be careful with the high voltage). ll no Voltlge at oil. it Indicates that the
transformer hes hrolren. and should be replaced by n new one. ll“ it I! enough to ZIWV. then check the lllnnent
voltage of the transformer with ellermtin; IOV grade of a "meter. the value should be about JJV (FlGJ - S).
Sounder) wluln.
Figs-S Pips—6 . n..s-7
if there is no voltage at all. it indicates the nanslwmer has broken. and altould be replaced by n new one. ll' it is
enough to 3.4V, check the filament rulsunce of the mgnetron. measure the filament plug wlth the R X I grade
ot‘ a nvotneter (FIGS — 6). ll it is open - circuited. It indicates the magnetron has broken. and should be replaced
by a new one. it is normal if the resistance value is very small. Then check whether the magnetron eteel h“
hroelen. ll broken. replace with - new magnetron.
If there ll no problem Wlth the m-gnetron. check the high voltage dlude then. Mulure the diode with R 1 10K
grade at n evometer. the " e " rod end of the nvwneter connect the cathode of the diode‘ the " - " rod end of the
avomu‘fl' connect the anode or the diode (FIGJ A 7L The avom‘i‘r reading ill’uuhl be ubuut no thou-no onm.
Then change the rod to different electrode. the man. should be “a”. u the reading 1; my small. and our to
lhort circuit. in lndlutes Ilte hlgh volule dlode nu been punctured, And should be replaced by a new one.
Fig.5-3
if the high voltage diode Is 0K, .thnn check the forwarding plug of the tnnsionner in see whether it Is enough to
lliiv. it it is not enough. check'the micro- switch ol the time and power dislrlbuter. Connect the two rod oi' the
avooteter to the I.1 place of thc timer with RX iK grade.“ is normal ii the reading ll "O'when at cut oil“ condi-
tionuli the reading Is "m",ii indicates the micro switch has bmken. and the timer rhoulrl be replaced by a new
one. If all the above examination shows normal. then check whether the terminal plug 0! the magnetron and the co-
paeitor have loosed." it is loosed. pinch it lightly with a pliers.
5. Examine the atartin; and the
Pullout the power plul. take all the nbinet. ditcham the capacitor. measure the resistance value at tile primary
winding and the secondary winding ol' the transformer with - avomeler (FlGJ — to and FIG. 5 - 9). The resistance
value of the primary winding should be about 2.2 ohm. the secondary winding should be about 130 oitm. otherwise. it
indie-Eva the transformer has bruit-us. and should be replaced by a new one.
Primary winding
FI;.S - ll Fi|.5- l2 Fig.5-10
H the transformer is normal. then the high voltage capacitor should be checked. Pull out the connecting plug of the ca-
pacitor. and measure It with it X I grade oi e avotneter, the two rod oi‘ the avometer connect the two polarity oi the ca-
pacilor. When they just connected. the reading of the avometer should be zero. then enlarge to nine mepohm slowly.
ch...“ the rod to different polarity. the math; rop'oat rm... aoro to at... mflohm (Fla. 5 - u ), it means the capaci-
tor is normal. it the indicator oi the avometer un‘t_ point out lrom zero to nine megaohm. it indicates the high voltage
capacitor has broken. and should be replaced by a new one.
It it is normal between the two pole of the capacitor. then the insulation between the capacitor pole and the cabinet
should be measured with R i [0K grade of l avometer. The resistance value should be "u" (FIG. 5 ' ll). if ii I!
short circuited or have a number reading, it indicates that the capacitor has been punctured or electricity ieeked, and
should be replaced by a some model. same capacity one.
it the resistance value of the capacitor's two pole are “0°". the capacitor is normal. Then check the earth ol the map
netron’s two iiiatnent to see whether they are short - circuited (FIG. 5 - iii). it they are short — circuited and the lila-
meni strikes the shell of the malnetron. it Indicates the maptetmn has broken. anti should be replaced by a new. same
model one.
it the magnetron is also normal. then test the pilot switch. Pull out the two piuu oi the switch. Measure it with the it
it 1 grade of a avorneter. the two rod connect the plug of the switch, the resistance value should be "fi"(FlG.5 - 8).
Then press down the pilot switch with a screwdriver. ii' the reading at the avometer pointed to zero. it indicates the pi-
lot switcla has broken. and should replace it with a new. same model one.
ll . REPMRlNG METHOD OF SEVERAL BREAKDOWN
1. Repair when there occured large amounts microwave leakage. There are many factors which may cause microwave
leekinr. Following mentioned may be the main cause of microwave leakage:
(l) The door d-rnrmed. the hinge loosed or damlped that caused the door can not close tightly.
(2) The door pressing cover or the embed pieee damaged or come all.
(3) Obvious damage or uneven oi the oven.
(at There are tilth between the door end the oven.
(5) The door and the oven are serious loosed alter the door closed.
it there still exist microwave leahage. measure near the magnetron with the probe of the microwave leakage mea~
sure. it the leakage is larger. the oven should be turned oil and check whether the tour screws which its the triag-
netrom have been loosed. if loosed, twist them tightly with socket wrench. ii the torn screws are fixedly. then the
magnetron should be take down to check the copper filament weaved washer oi the magetrou has been placed well
or whether the wave guide housing mpling has been oxidised or have lacquer on it. [I do have. scrape the all»
dized layer or the lacquer off. when fix the magnetron, the copper filament weaved washer must be placed well.
the screw] muat be twist tightly. 11m. turn am the oven and measure again until it comply with the requirement.
n the microwave leakage is larger u those little puaitltm or the window board. the oven should be turned on to m-
speet whether there are crack anwng them (fig. 5 — 17). it several holes formed a crack . it would enlarge the ml-
erowave leakage. it that is the case, it indicates the door has broken. and thwld be replaced with a new door.
1. Means or repair when the oven can heat. but the t-rrnl-bk glass an' t more
Firstly. check whether the turntable holder is placed correctly. it it Is correct. then pull out the power plug and talle
down the turntable combination, measure the resistance value of the turntable motor with R X lK grade of a avometer.
if it la open * eireulted. it indlutea the turntable motor has: broken. and should be replaced by a new. same model
one. it the resistance value is between is - 22K. it Indicates the turntable motor Is normal. then check the connecting
shalt weave. it the plastics which the shalt insert in has broken. a new shalt weave should replace it. 4
3. Repair when the overt can heat. but the lamp is not net.
Pull out the power plug, take down the cabinet and discharge the capacitor.
Pull out the two terminal plugs of the lamp. measure the two plugs of the lamp with the R x loll grade ol’ a avorneter.
it it la n.“ — nlrrzulted. it lndirztes the lam: has broken. and should be replaced bv a same model one.
unann-
Figd - 16
a. Means of repair when the oven stop working atrer several minutes operating
The pile-imam lmitratea the thermal emu-n is playing Its protective role, and you should check whether the fan is
urrrtrlng In nnrmal. Turn of! the overt . null out the power plug. take down the cabinet. discharge the capacitor . then
turn the [an with hand to see whether it it moving flexibly. if not. It indlutes that the oil bearing of the [an motor has
run off the oil, and should take down the fan oumblnatlom to repair the motor. Loosen the two screws which [is the
bearing out the shaft and the bearing. and rinse them with kerosene (ATTENTION: The bearing can only be wiped
with a silk which moistened with kerosene rather than be washed in the kerosene because there are felt on it. if the ielt
are united with kerosene. then the engine oil can not be sutked up. ). After the bearing being cluned. the lelt should
be refuted fully with engine oil (for when the oven ls operating. the engine oil empty into the' oil bearing slowly). Fix
the bearing cover with two screws. turn the in around till it can move flexibly. “then insult them to me oven. and
plug in the two terminal plugs.
if the tan can move flexibly, then the winding of the fan motor should be examined. Measure the winding with R X [00
grade of a avometer. II' It is open - circuited. it indicate! the winding 0! the [in motor has broken, and should be re-
placed by a new. same model one.
(6) The crack of the door shielding net cover.
Before repairing. check whether the above liaied point are existed. if not, can you rtart the microwave oven. Place
a graduate of about 275ml water at the middle of the all“ tray. close the door. time set at 3 minutes. lat-er at
high. make the oven operatinl in normal. Reellll'y the microwave Ieaka|e mearure, measure the amount of the
microwave leakage around the oven with its probe. If there are places which the leakage exceed the standard re-
quirement. then repair them accordingly. it the leakage amount exceed l milllwatt/cm’ at the left door eraek.
then pull out the power plug. take down the cabinet. adjult the acrewea of the hinge(up and low) as figures - 14
to less the gap between the door and the vvent Then measure again. the leakage amount should less than I milli-
wall/crn'. Generally. it should be ennlmled below 0.15 mllllwatt/cnlz with Wine allowance.
Dwr Bllllll. ya" ll light aim. -v
D" Nut (no)
Dauhioaeilw)
Dow r—hl- put n n»- so" L“
1:15.5— u FigJ— Is
It the leakage uncured at the rl|ht door crack adlult the lemma which [la the Interlock holder and the lnok. ii
the leakage Is on the larger ride at the right - above oi‘ the oven. then adjust the upper screw at FIG. 5 - ls.
[noun out the screw. push the door close to the oven to hook the door hook with the plaatie parts, then lighten the
Screw again. ii the leakage is larger at the right— below. then adjust the lower renew as Fills - is. Loosen the
lerew. push the door eloae to the oven to hook. the door hook wlth tln owlleh holder tightly. then u'lnen the screw
again. and open and close the door repeatedly to check whether the door can operate Ilealbly. whether the hunk
and the switch are In their normal poaltlon. I! it la not In pxuilhn. then adluat the door hook and the “duh holdu-
repeatedly Iu nuke lhem to the mun-l pmltlim. ta: put nun-u: the lnterlueka. in all on the pilot awllch. lo leal
the loose between the door and the men. then measure the leakage with microwave leakage measure alpin-
lI' the lukage atlll exoeed standard requlremmt. then Inspect whether the rllht oven Li even or not. If not. amaofll
n, Then adjnat um mm and the nun tn gum-mg thzlr ll“! tn the ultimate,
COMMON BREAKDOWN AND MEANS OF REPAIRING
PHENOMENDN
CAUSE
REPAIRING MFANs
1. When starting the oven. the
lamp is not on, the thrntattle
tray can't rotate and the food
can't in heated
2. When starting the oven. the
lamp ta on. the turntable mlnt-
log. the fan cyclln| hut the fund
ean't be healed.
l. fuse broken.
2. The primary and secondary winding of the
transformer are abort - eirenlled.
3. The earthlng or the polarity of the capacitor
is punctured.
4. The pilot swlteh can't cut off.
5. The lnmloelt twitch h-ven't cloud.
6. The power plug and the socket Are not in
good connection.
7. The door hook broken.
The primary and aewndary winding. the fII~
ament of the transformer are open — circuit-
ed.
. The magnetmn mantent I: open — circulled.
the magnetic ateel of the magnetron broken
or the magnetron Ia air ieeklng.
. Time and power distributer broken.
. The phage hr the mlnttrm M the eanaehna
looeed.
1. Change . new hue.
2. Change a new transformer.
3. Change a new capacitor.
4. Change a new pilot switch.
5. Change a new interlock
switch.
6. Adjust the connection or
replace it by a new one.
7. Change a new hook.
. Change a new transformer.
. Change the magnetron.
Change the time power dia-
lrihuter or the micro — switch.
. Fix them.
3. The food can be heated. but the
lamp is not on
4. The food cln he hated but the
tumlulsle tray I: not rotating.
5. The oven can heat within 2 — 3
minutes. but can not heat from
the fourth minutes
6. When atoning the oven. it can't
heat. and with “wenwen” nolee.
7. The oven can heat. but with
wilted “ahlaht” noise
a. Large amount of microwave
leakage
9. The door can‘t open
I0. The door reins: button fall off
ll. Electricity Ieaitlnl
The lamp broken.
. The plug fall off.
. The turntable motor broken
The plug fall off
, nether-nu aha" arr-tr! m...
The winding oi the fan motor in open - cir-
culled.
. The fan falls off
The plug of the fan motor falls 0"
The turn-table lhlit. Ia griped with the mo»
tor hearin
The cooling tram blocked
The high voltage diode was punctured
Change a new lamp
Insert the ping again
Change the turntable motor
Insert the plug lecurely
Change the we...
. Change the fan motor
Change the tan
insert the plug
Overhauling them
Repairing It
Change a new diode
The iron «are of the transformer loosed
l. The door deformed
2. The door metal net cracked '
3. The gap of the door crack is too lane
4. The welding point of the oven fall off
5. The screws which fix the magnet"!!! loosed
6. The wave guide connection oxidized.
7. The magnetron copper filament washer is too
thin cause the wave |ulde opening not in
good earth.
1. After long tlmeraaing. the wear and the nut
- eaten enlarged the gap of the door shaft
and the shaft hole. thus uuae the door
crooked.
2. The door hook broken.
Weared and aged after ion; thne operating
me earrntng Inlullllun resin-nu: v! at: the
motor! or the traaiormer are less than 2
..........|....
Change a new tunaformer
I . menu "I: door
2. Change the door
3. Adjust the gap
4. Change the oven
5- Tighten the acrevra
6. Scrape the oxidiaed and tighten
the acrevra
7. Thick the crapper fllament
wuher
1. Adjml the hinge to rectify the
pmltlnn of the door.
1. Change the hook.
Overhaul It or renew lt '
Test where t. the tnhtn, praee,
then replir it or change those
damn-MI Mtannnnrnte.
CRITICAL PARTS SERVlCING
l MORTANT THINGS TO DO PRIOR TO_ CRITICAL PARTS SERVICING.
The following hummions are CRITICAL to the ownz‘s nt‘ezy . Be ante to l'ollow all the ins-mains Cont-ac: the
nunuthezuxe: or distributor it'you have any quadan.
If the WEI is opmtive after to servicing. a Mlmwnve Leakage Tat lit-$4- mcvwave Tum-ton
Cheek) should be pcfofl'lwd prior to terviein; the even. [left to Section 7.5. mm ve Lukage Tut. for
the dexailnl rink pmcdurz.
In the event that any mimwave oven (”and to have tnimuave emission level in sea at“: mWIun. The
following tannin-tea ahmtld be follow
L Inform the distrt'mttnr. imports. or mm:- the finding. Reenrd it in the logbookas welL
5. Repair the unit at on us: to the amt:
e lttvefligate 'J\e Wet and again the cit-t: ot'the emsive leaizge
d. Hold the ova in your tiatriliq and innate: due owner not to use the unit until the hit: 115
beet brought. into compliance
In the even that the ova opens with the door open. file following wealth: should be fitllowei-
a. Tell the use-ant to mm the over.
b. Hold the mm in your facility until it is instigated and rephei
e. Canine: the manut'amc and CDRH' (FDA) immea‘ia
1 Interlink Assably Mlaeml and Adjumnmt
2.1
5:
!l
[Ii-on suspee: admin: pix-nary maxillary or monitor hmixk switehs. use your alanine: (tum-ll or
analog type: to cite-it: the elem-Zeal continuity.
Make sure the pawl: tzmi is wild wt and the high-voltage agitator k discharged bc‘nr: the elf-trial
eoutimlily chat
Set the ohmmezzto ‘va Rs'manee' range and came: bath lads (dlignmrdips) to m svlltfi-t
terminals.
Opct the doormtlhotiee the mu: ruling. The primary or scenery intzloe': xwitfi should show an
“infinite" min-nine xvi-tn the door is opea. Equine: it witer. it is fife—rive The monitor ham-lock should
alwiva‘zcvarnzrm' refinance win: tltedourisopen. thnthedouriselosat. memdhgswfilbe
“Wm
, ll‘the ova has be=l fatter-d hope-tun due to the failure nt'tlte monitored 915”me and/or
~ anomaly) lute—loans). you should [Whig all of the monitored stu'ety interlock switehes and the monitor
switch
Ref: lo Chapter 4. Salons I and X I'ur in“! to m’nm‘: and Humble the lumbar-k and mnnjtm' swimhcl.
Aha): refer tn Station 0.4 (or adquate wiring diagnllh Monitor intclock must always be inn-ma.
Repeet 5m 62.4 to dusk d=m=I unanimity.
Pert‘omt mintmtl die-"Sis and tau as define! in Chapter ? Mbr: talc-sing mg oven m m: ownc,
3 Door and King Rrglxcnent and Adjusmtcll
L:
t.‘
3,4
Pull the power cord from the outlet. Chg“): the door for warpcl or dimmed arcs. Check the hing: for
broken of mm m Check odw: are-J stufl-t as mked front that. broken door lambs. wont! racked
Viewing sax-an and etc.
lute: daze-mining the door anemia!)- slmld be replaced. dtfik the parts list [or the cot-rat part ombc. All
am dm ”yen-its can.“ be ordeal firefly than the nun-name: or in author-ind dim-ibuwr.
Refer to Chagte: -'. Sections L ll. and ill for how to disassembk asemble and adjust the door and/or
ltinga
Fenian-n tqltird aim-ks and tax: as ducind in Cltapt: 7 More mic-sin; the own In the mg.
4 Magncunn 84mm
4.1
_l.
IJ
Ref: toClt-‘lptcljdonw l‘ormovingandrqlarla; (homer—mm Che=k for the monks
wire m=it gasket before installation
Perform rqniid end“ and int: x nlmri'od in' Chain: 7 before slain; the em: to the awoe.
Cono'u: a' Mic-mare Lat-age Tat (ltd: tn Saxon 7.5):1. nu: magnum are orior to installing til: my
CHVC.
SAFETY CHECKS AND TESTS AFTER SERVICING
C onswctional Chest-4
u‘ meehanicsl or eleztrial felt-manic) parts have be: mug-J. be sure to follow the following my:
Ll
1.2
1.3
Cilu'tk {or come: wiring. athuate methaninl mats ot'pons. and firm cot-means.
Clicak for adquate gmmdin;
Che—J: the lizllotviru: itch; baffle min; the on: ON.
1) Pmpedmrdofingmumkcmficamdhhga.
Z) No chine. damage
3) Pap:- interlock anti monitor operations. (Rafe: to Steps 61.2 to 6.14.)
Insulation Resimma Tat
u’ the low voltage pow: supply has be: rcpaitci its: a 500 V Mmoitmmezz to mast“ the Mir-one: becwczt the
primary (Line and Neural] ut‘tltc ;o\V= pill; and opczttor acssi'nle metal parts. The twin-inn: shouid be no less
than 2 Mega Ohm. Repair the ova again when ne:=wy.
Microwav: L
Inlh=
4m that mtg-tum; door. or hing: in: "a: glacier tcdiustei : mimwav: 2:31 as Inflow: m be
phat-mt
4.1
l.-
x..
.|
T-s: mucus muirei'
Minn-ave Sm: M42: ‘Ecladay MM 5-17“) or quimlzx
600 mi gins! 5:31:
Pmn’m
.Tum the pew: ml‘(cr “aging in: om) immdiauiy it'd]: um Hi; this (Bl;
Plug the oven pow: curd "mm the pmv= muck
Turnandm Mic-wave L=i=u= Addendum up (oral last It) minute; Sc the nth-mans: (flit:
“sf-inn) at ‘FAST. v
Fiil megmhkewithzfi (+l- liindnfcuidunwnm and pine: me hatch: nu maizefuu
tumublngianplau.
Close the oven M. 5:1 m: Lime m. “5 minus". Sc: Hie Power brie! n “HIGH“ or‘lOO 95" and sun the
question.
Held (by an: handle gonna“) me pmh: (can: spacer) pmldiuuhr to th: arcs and: I5! fur RF transients
Mov: m: ;m'u= m a ape-d ul'na taste dun 1 inch p: sc=ontL Th: was and; (a; ==:
ll Tu: tirzmm'emc: um]: finer/aide! ml.
2) TM an: unit: does ram
5) Tu: at:- ol'cnnlnl panel.
4) Th: are» net line cud.
5) All “5“ openings.
6) An china sm
fl olllt: amps: arm.
At sevcai barium in (he vicinity ol'cci: high leakage point. half] the prob: stationary until a study stale
valu: is z=d1=i on m: Sufi-q! Maze. Ohm: (in: maximum lab.“ 31:32: location.
Sc: the Mn: Rams: in 1LOW'1rmzsure th: labg: al HI: poinl m'n'wcimum lnkage locmgd in
Sin? 7.3.3 abom mm um niuz and Indian arm maxim-m inns: mamcnuiwim we max:
“spans: nu ‘SLOW'.
The nuximmn RF emission (Ink-rig) shuld be an mWIcnz ur la. Irnuv. invsu'gau and regir 111: (NC!
agm'n until in paw the m.
15
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