LG RCS10PBDA Service Manual - Page 33
CONDITION, CHECK, RESULT, CAUSE, REMEDY, TROUBLE 5, No microwave oscillation even though oven lamp
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(TROUBLE 5) No microwave oscillation even though oven lamp and blower motor run. (TROUBLE 5()DNisopmlaiycroopwearvaeteosspcrilolapteiornlye) ven though oven lamp and fan motor run. (Display operates properly) CONDITION CHECK RESULT CAUSE REMEDY CONDITION No microwave oscNilloatmioinc.rowave oscillation. CHECK Disconnect the wreilraDweyiisrlee3caolaednnasnddefsrccotfhrmteohmcek conrteinlauyity2ofarnedlay 3 (Opcehreactke cthoentuinnuiti)ty of relay 2. (Operate the unit) RESULT No continuity. No continuity. Continuity. Continuity. CAUSE Defective PCB DaesfseecmtivbelyP. CB assembly. REMEDY Replace PCB Reapslsaecme PblCy.B assembly. Check high vol- taCgehetrcaknhsifgohrmvoelrtage transformer Abnormal Abnormal Normal Normal Defective high Dveofletacgtieve high vtoraltnasgfeormer. transformer. Replace high Revpollatacge ehigh votlrtaangesformer. transformer. CtahCtgaeehgceeckcackhpaihagpichagichtvoitovro.olr-.l- AAbbnnoorrmmaall NNoorrmmaall DvDvoeoelftleafteacgcgteitevicvecaehaphipagiacghichtoitro.r. RvoeRvlptoaellagptacelageccehaeicpghaahipcgiathocri.tor. ChCehcekckhihgihghvovol-ltatgaegedidoidoed.e. AAbbnnoorrmmaall NNoorrmmaall DDeefefecctitviveehhigighh vvooltlataggeeddioioddee. . ReRpelapclaecheighhigh vovltoalgtaegdeioddioe.de. ChCehcekck mmagangenterotrno.n. AAbbnnoorrmmaall DDeefefecctitvivee mmaaggnneetrtoronn. . ReRpelapclaece mamgangentreotnro. n. NONTOET:E• :M¥aMkaekseusruertehtehewiwreirelelaedasdsccoorrrereccttppoossiittiioonn.. • W¥hWehneRneRmeomvoinvigngthtehewwiriereleleaaddssfrfroommtthheeppaarrttss,, bbee ssuurree ttooggrraassppththeeccoonnnnecetcotro,rn, ontotthtehwe iwreisre. s. • W¥hWehnerneamrneadomnvidoninvingignoggtohotdeohdecmocmanogadngnditneiiteotirotnorno.n.n, ,bbeessuurreettoo iinnssttaallll tthhee mmaaggnneettrroonnggaasskkeet tininthtehecocrorerrcetcptopsoitsioitnion Output is full power Outwpuhet nisyfouull pseotwloewr er whepnowyoeur lseevet l.ower power level. Disconnect the Diswciroenlneeacdtsthfreom wirelaleya2dsanfrdomcheck relcaoyn3tinaunitdy crehleayck2. co(nOtipneuritayterethlaeyu3nit) (Operate the unit) Abnormal. Abnormal. 5-15 Defective PCB aDsesefemcbtilvye. PCB assembly. Replace PCB asRsemplbalcye. PCB assembly.