Service Manual

10. Servicing
330
SMGB0079 rev.0 - 01/2013
7 Pull up and remove the electrical box.
1. Electrical box cover.
2. Two screws.

Removing Display PCB
1 Remove the pipe cover following Removing pipe cover.
2 Remove 1 xing screw and remove the terminal cover.
3 Disconnect all the wiring connected to the display PCB.
4 Hold the upper part of 4 holders with long nose pliers and remove the display PCB.
1. Display PCB (PWB2).
2. Terminal cover.
3. Long nose pliers.
4. Display PCB.
5. Holder.
1
2
3
4
5
N O T E
DONOTtouchelectricalcomponentsonthePCB.PayattentionnottobendorapplymuchforceontoPCBinorder
toavoidPCBfailure.
N O T E
1 Toconnectwiringatreassemblingensurethattheterminalnumbersandwiringmarkbandcodesarematched.
Incorrectwiringmayresultinmalfunctionordamageofelectricalcomponents.
2 Differentdipswitchsettingshallbeappliedforeachmodelwhentheelectricalboxisreplaced;Seechapter8
“Troubleshooting”.
3 Payattentionnottoclampanywiringbetweenplatesorelectricalcomponentswhenclosingelectricalbox
coverorfrontcoveratreassembling.