Invacare Comet Series - Replacing Circuit Board; Replacing Potentiometer

Comet
5.
RemovescrewsAbelowoperatingconsole.
6.Removeoperatingconsoleandfoldupwards.
7.RemovescrewsCondriveleverBandremovedrive
lever .
8.
LED
Fig.4-1
LCD
Fig.4-2
Disconnectplugfromoperatingconsolecircuitboard.
9.Replaceoperatingconsole.
10.Connectplugwithcircuitboardonnewoperating
console.
11.Installpartsinreverseorder.
12.Testallfunctions(trialrun).
4.5.2Replacingcircuitboard
CAUTION!
Riskofburningifpowercableisshorted
–Turnoffpowercompletelybeforeremovingany
powersupplycomponentsofmobilitydevice.
Thereforetakeoutbatteries.
–Avoidbridgingofcontactsduringmeasurements
onliveelectricalcomponents.
Riskofdamagetooperatingconsole/circuit
boardbyinstanthighcurrent/voltage
–Unplugbatterycablebeforeremoving/installing
circuitboard.
–Makesureallpinsarecorrectlyconnected.
1.Unplugbatteryconnector.
2.
Removeoperatingconsoleasdescribedinchapter4.5.1
Replacingoperatingconsole,page11.
3.Replacecircuitboard.
4.Makesureallpinsarecorrectlyconnected.
5.Pluginbatteryconnectors.
6.Installpartsinreverseorder.
7.Testcircuitboardfunction.
4.5.3Replacingpotentiometer
CAUTION!
Riskofburningifpowercableisshorted
–Turnoffthepowercompletelybeforeremoving
anypowersupplycomponentsofthemobility
device.Thereforetakeoutbatteries.
–Avoidbridgingofcontactsduringmeasurements
onliveelectricalcomponents.
Riskofdamagetooperatingconsolebyinstant
highcurrent/voltage
–Unplugbatterycablebeforeremoving/installing
operatingconsole.
–Makesureallpinsarecorrectlyconnected.
CAUTION!
Riskofaccident
Wrongpotentiometersettingcanresultin
dangerousdrivingsituations.
–Connectpotentiometertodrivelevermounting.
•Phillipsscrewdriver
•2mmAllenkey
•Digitalmultimeter
1.Removeseat.
2.Removeshroud.
3.
DisconnectbatterycableA.
12
1603798-B