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27
4-12 ReplacementofControlCircuitBoard - MFC32E
4-12-1RemovalofControlBox
1.Besuretogroundanystaticelectricchargein
yourbodyandnevertouchthecontrolcircuit.
2.Disconnecttheconnectorsfromthecontrol
circuitboard.
3.Removescrewssecuringthecontrolbox
assembly.
4.Removethescrewsecuringthegroundtailof
thekeyboard.
4-12-2RemovalofP.C.BAssembly
1.Pulltheleverendoftheplasticfastenerand
removetheFlexiblePrintedCircuit(FPC)of
membranepanel.
2.Removescrewssecuringthecontrolcircuit
board.
3.LiftupthecontrolcircuitboardfromtheAss'y
controlbox.
4.WhenreconnectingtheFPCconnector,make
surethattheholesontheconnectorareproperly
engagedwiththehooksonthePlasticFastener.
4-12-3RemovalofWindowDisplay&MembranePanel
1.Windowdisplayshouldnotbedisassembledas
itsmountingtabswillbebroken.Ifrepairwork
isdifficult,replacewithAss'ycontrolpanel.
2.Themembranekeyboardisattachedtothe
escutcheonbasewithdoublefacedadhesive
tape.Therefore,applyinghotairsuchasusingof
hairdryerisrecommendedforsmoother
removal.
3.Wheninstallingnewmembranekeyboard,make
surethatthesurfaceofescutcheonbaseis
cleanedsufficientlysothatanyproblems
(shortedcontactsorunevensurface)canbe
avoided.
Controlbox
Screw
FPCConnector
Screw
Window
Display
Membrane
panel
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