JB-Lighting Varyscan 3 Special 250MSD User Manual - 5. Troubleshooting
Varyscan 3 Special 250MSD
25
JB-lighting Lichtanlagentechnik GmbH Sallersteigweg15 D-89134Blaustein Tel. ++49-7304-9617-0
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Description
DMX-In
SMeffectwheel
12V input
SMgobowheel
SMcolourwheel
fan output
SMgoborotation
SMdimmer 1
SM
movement
SMtiltmovement
SMdimmer 2
DMX-In
DMX-Out
pan
Pin 1
not occupied
red
brown
red
red
not occupied
red
red
red
red
red
black
black
Pin 2
black
blue
brown
blue
blue
not o.
blue
blue
blue
blue
blue
white
white
Pin 3
red
yellow
-----
yellow
yellow
black
yellow
yellow
yellow
yellow
yellow
red
red
Pin 4
white
white
-----
white
white
red
white
white
white
white
white
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5. Troubleshooting
5.1 Change thermalfuse
5.2 Change eprom (software)
5.3 Pinassignment
Remove the circuit board cover whichislocatedbehind themirrorholder,byloosening
the screws. Comparethecircuitboard with thediagram on page 26 to locate theeprom.
Remove the eprom verycarefullyfromthesocketandinserttheneweprom.Thesmall
markontheepromandtheepromsocketindicates therightpositionoftheeprom.Make
sure both marksmatch. Checkthepinscontact.
Reassemblethecoverofthecircuitboard andtestthe Varyscans functions.
WARNING: Contact qualified servicepersonnel!
Warning: Disconnect fixture from mains, and allow
hot lamp to cool down for at least 30minutes!
Warning: Disconnect fixture from mains, and allow
hot lamp to cool down for at least 30minutes!
Remove the 8 screwsholdingthetop coverofthe Varyscan andremove it.
Cleantheunit(seechapter 4.1).
Loosen the nut which holdstheignitorandplacethe ignitor outsidethecasewithout
removingthecables.The thermal fuseitlocated in the cablewhichrunsfromballast
to thefuse.
Unsolderthecablefromfuseandremovecable bypulling it backwards.Remove the
silicone fabrichose from the thermalfuseandunsolderitfromthecable.Installthe
new thermal fuse, butmakesure nottooverheatitduringthe processofsoldering.
Useacontinuitytesterto check the continuity and coat t h e c a ble andthe thermalfuse
again withthefabric hose. Thefabric hose is most important, becausethethermal
fuse is live.
ReassembletheVaryscan.
Test thefantoensureitisworking.Adefective fanisthemostcommonreasonfor
adefective thermal fuse.