Jelrus Infinity M-30 - Replace Main PC Board

1 Removethefrontpanel(Figure5)
2 NoteandrecordthecolorandlocationofeachwireonthethermocoupleterminalslocatedontheMain
 PCBoardRemovebothwires
3 Removethecalibrationjackconnector(J1)fromtheMainPCBoardbypullingstraightup
4 Removefiveelectricalconnectors(BLACK,ORANGE,YELLOW,WHITE,GREEN)fromtheMainPCBoardby
 pullingstraightupontheconnectorDONOTPULLONTHEWIRES
5 RemovethenutsandlockwashersthatholdtheMainPCBoardtothefrontpanelandliftstraightupto
 removeboard

6 Aligntheholesinthenewboardwiththestandoffsonthefrontpanel,reinstallthefastenersandscrews
7 Reconnecttheelectricalconnectorsasfollows:
 Blackwiretoterminalmarked“H”-E5
 Orangewiretoterminalmarked“GATE”-E4
 Yellowwiretoterminalmarked“LOAD”-E3
 Whitewiretoterminalmarked“N”-E2
 Greenwiretogroundterminal-E1
8 ReconnectcalibrationjackconnectorThegreenwireontheconnectorisclosesttothebottomedgeofthe
 frontpanel
9 Reconnectthetwothermocouplewirestothethermocoupleterminalsobservingthecolorcodingnotedin
 Step2Ifthermocouplewiresarereversed,5minutesafterheatingprogramisstarted,"Er5"willappear
 ontheMainDisplay
10Replacethefrontpanel
FIELD SERVICE
REPLACEMENT OF THE MAIN PC BOARD
REPLACEMENTPARTNUMBERS
23
100V 115V 220/230V 240V
M-30 15500-031 15500-041 15500-053 15500-056
L-30 15500-531 15500-541 15500-553 15500-556