Panasonic NN­GS595A - 4.4 High Voltage (H.V.) Inverter Replacement

10/24/2016 XMLServiceManual
file:///C:/Users/sh.dehghani/Desktop/NNGS595AOTSVC_PHAMOS0511035C3/viewing/SGML_VIEW_DATA/OT/NNGS595A/SVC/PHAMOS0511035C3/inde…
3/9
2.RemovewhiteconnectorCN1fromD.P.C.boardDU.
3.Remove1screwholdingD.P.C.boardDUonreinforcebracketA.
4.Usetoolssuchaspincerstorejectthetabofplasticbracket.
5.RemoveD.P.C.boardDU.
6.Usingsolderwickoradesolderingtooland30Wsolderingironcarefullytoremoveallsolderfromtheterminalpinsof
thelowvoltagetransformerand/orpowerrelays.
NOTE:
Donotuseasolderingironordesolderingtoolofmorethan30wattsonD.P.C.contacts.
7.WithalltheterminalpinscleanedandseparatedfromD.P.C.contacts,removethedefectivetransformer/powerrelays.
Replacecomponentsmakingsureallterminalpinsareinsertedcompletely,thenresolderallterminalcontacts
carefully.
4.4H.V.Inverter
1.Dischargehighvoltageremaininginhighvoltagecapacitor.
2.Remove2screwsholdingreinforcebracketAonovencavity.
3.Remove2screwsholdingreinforcebracketBonovencavity.
4.Remove1screwholdingoventhermistoroncavitytopplate.
5.Remove1groundingscrewholdingACcordʼsearthlead.
6.Disconnect2highvoltageleadwiresfrommagnetronfilamentterminals.
7.UnplugconnectorCN701&CN702fromH.V.Inverterboard.
8.Disconnectleadwiresfromfuseholderterminals.
9.Disconnect2leadwiresfromcapacitorlocatedonreinforcebracketB.
10.Disconnect2leadwiresfromfanmotorterminals.
11.UnplugconnectorofACcordʼsNegativelead.
12.RemovewhiteconnectorCN1fromD.P.C.boardDU.
13.RemoveredconnectorCN9fromD.P.C.boardAU.
14.ReleaselockingtabsconnectingInverterbracketAwithInverterbracketB,detachbracketA&B.
15.Remove2screwsholdingH.V.InverteronInverterbracket.