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NN-C897WB
NN-C897CB
NN-C877WB
NN-C877CB
! WARNING
This service manual information is designed for experienced repair technicians only and is not designed for use by the general public. It
does not contain warnings or cautions to advise non technical individuals of potential dangers in attempting to service a product. Products
powered by electricity should be serviced or repaired only by experienced professional technicians.
Any attempt to service or repair the
product or products dealt with in this service information by anyone else could result in serious injury or death.
This service manual covers models for use in the following countries, the appropriate suffixes are shown.
BPS
cis vis hstvcestubewsetistadteuscssetenuatvess® For the United Kingdom
CONTENTS
F Gatsre Chiat tein sie cics Siege deceives cs0h eae idev aa covecsos covacteces incessevasvesuce cease sincoeasegavtsOL oaleieTee aa leeen ng eek
2
Control Panel Sivsiscccccs.cccdal aesicenss doa sesk yeees cates lesecucedceus shes reve cdasans eoedaecn ied es cee sueiaucensDovheas deesues Soeadeos 3
Operation procedure....i.scccccdsscedelvesedescsincesiveneceeziccss
soavedg ie eadsiedebdeecectedsseetecteedaveacusanedceavesuen 4
Schematic Gia rans nis ssisseccecssecdsescescecdecten
is svesuee cs sase eves oveas vein daveas tatteseds calivesnseaue ev sues vieeetiseseiors 6
Wiring Diet remizscvvcsic ccc Ais ecee cokes eee eeediees fedceecededenccouseuvaseaviicdeessctetsensisGeatesuiueeesentanvessey
ccuuddeedsaseeg desc' 7
Cautions to be observed when troubleshooting. ..............ccccccccssecceeceeeeeneeeeeesseeeeseeeeessaeeeseaeeneneaeees 10
Description of operating SCQUENCE..............cccccccccsccsscessecessccesececsseceacersceseceecesaeensceecsseessseeeseressaeesees 11
Disassembly and parts replacement Procedure. ...........ccccccssecssesseeeeeeeeeseeeseeceeeeseecesenaecneesseeeseeeeeens 15
Component test procedure...............csssescsessssssecsseeseeesrersncessesecceesnsesseensesersaeseseserseseserersatersesenesenee 20
Measurements and adjustment. ..........0.. cc eccseeeseeseceeeeeessececeeeeeeesseeceeeesenesteeeessaesereesaeesneeearerses 22
Troubleshooting Quide: ... 2.04. .s.ccsceccsveesstazceestanecevascasseos¢sieeicevaehscesesesiorgectieediidadeserverepacarceateneomayeests 23
Exploded view and parts list..............cceceeessecesseececseesesenecessnnececeeaeereeeeeceseaeeeseenaeeereeeeerenaeeesenaerensea 26
Digital programmer circuit parts liSt......
ce
cece eeeeceecerereesenssecasensensasssaseaseeasesseneteresearerereneees 32
Digital programmer layOUut............
cc ccecececesessescenesscccseesesscseeesseseesssecsseseeseessecsssecsesecsseesseessseeesnsenees 35
Digital programmer circuit SCHEMALICS..........
ee ee ceesescesenseeeeeestesenesesesesecsseeneceseeeesersesssecsecnseeenees 36
Primi kit information. cc 25s ecc see desceed vse teeta ctbsshieabateessiaseh ag talento cveaceadendaiepereurientnieteedinad 40
FEATURE CHART
FEATURE
NN-C877WB NN-C877CB
NN-C8° , WB NN-C897CB
MICROPOWER
O
oO
MEMORY STAGE COOKING
GRILL
CONVECTION
COMBINATION COOK
AUTO WEIGHT COMBINATION
O10;
OO}
OO;
OO;
&
AUTO WEIGHT DEFROST
SENSOR COOK
-
SENSOR REHEAT
=
SENSOR COMBINATION
DELAY STAND
DIGITAL CLOCK
Kg / Lb oz
O!O;
Oj
Oo
WORD PROMPT
COOK NAVIGATION
CHILD LOCK
O10}
O;0);
0;
O}
OJ
O|
OF
OF}
O}
OC}
OF]
OF
CO]
&
DEMONSTRATION MODE
O
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