Panasonic NN­GS595A - 4.2 DPC AU, Membrane Keyboard & Power Relay Replacement; 4.3 DPC DU & Low Voltage Transformer Replacement

10/24/2016 XMLServiceManual
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12.ReleaselockingtabsofreinforcebracketAhangingonbothsidesofovencavity,thenwithdrawthereinforcebracketA
outsideslightly.
NOTE:
PayattentiontothesharpedgesofreinforcebracketA.
13.HoldthereinforcebracketA,thenremove4screwsholdingmagnetron.
NOTE:
Afterreplacementofthemagnetron,tightenmountingscrewsproperlyinanxpattern,makingsurethereisnogapbetween
thewaveguideandthemagnetrontopreventmicrowaveleakage.
CAUTION
Whenreplacingthemagnetron,besuretheantennagasketisinplace.
CAUTION
When connecting 2filamentlead wiresto themagnetron terminals,be sure to connectthe
lead wires in the correct position. The lead wire of high volatge transformer should be
connectedto“Fterminal”and
theleadwirefromhighvoltage
capacitorshouldbeconnectedto
“FAterminal”.
4.2Digitalprogrammercircuit(D.P.C)AU,membrane
keyboardandpowerrelay
NOTE:
BesuretogroundanystaticelectricchargebuiltuponyourbodybeforehandlingtheDPC.
1.Drawoutwatertankfromescutcheonbase.
2.PullouttubeAconnectingtopumpfromcopperpipe.
3.RemoveallwiringconnectorsfromD.P.C.boardAU.
4.Remove1groundingscrewholdingoncavityfrontplate.
5.Openthedoorofoven,slidetheescutcheonbaseupwardandoutslightly.
6.Remove3screwsholdingD.P.C.boardAUonescutcheonbase.
7.ReleaseconnectorCN7ʼslockofD.P.C.boardAUbypushingbothleversinsideandpullupwardslightly,thenremove
flatcableofmembranekeyboard.
Toreplacemembranekeyboard
8.Usetoolssuchasknifeetc.topokefromtheedgeofescutcheonsheetandpeeloffescutcheonsheetandmembrane
keyboardcompletelyfromescutcheonbase.
NOTE:
1.Themembranekeyboardisattachedtotheescutcheonbasewithdoublefacedadhesivetape.Therefore,applyinghotair
suchasusingahairdryerisrecommendedforsmootherremoval.
2.Wheninstallingnewmembranekeyboard,makesurethatthesurfaceofescutcheonbaseiscleanedsufficientlysothat
anyproblems(shortedcontactsorunevensurface)canbeavoided.
4.3Digitalprogrammercircuit(D.P.C.)DUandlow
voltagetransformer
1.RemoveredconnectorCN9fromD.P.C.boardAU.