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26
4-11 ReplacementofControlCircuitBoard - MCB28E
4-11-1RemovalofAss'yControlBox
1.Besuretogroundanystaticelectricchargein
yourbodyandnevertouchthetouchcontrol
circuitry.
2.Disconnecttheconnectorsfromthecontrol
circuitboard.
3.Removescrewssecuringthecontrolbox
assembly.
4.Removethescrewsecuringthegroundtailof
thekeyboard.
4-11-2RemovalofAss'yP.C.B
1.Pulltheleverendoftheplasticfastenerand
removetheFlexiblePrintedCircuit(FPC)of
membranepanel.
2.Removescrewssecuringthecontrolcircuit
board.
3.LiftupthecontrolcircuitboardfromtheAss'y
controlbox.
4.WhenreconnectingtheFPCconnector,make
surethattheholesontheconnectorareproperly
engagedwiththehooksonthePlasticFastener.
screw
CONTROL-BOX
SCREWS
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