SCANVIEW ScanMate 4000, Manual

Page: 46 / 176

How to replace
Removal
1 • Remove the lamp cover A by loosening the two 3 mm dome head
allen screws, (access is through the ventilation slots, as shown on
the diagram on the cover) and slide the cover off towards the rear.
2 • Disconnect the connector to the relevant lamp(s).
Note: the reflection lamp is on the left, viewed from the back of
the scanner and the transmission lamp on the right.
3 • Slide the lamp against the spring pressure until it is clear of its
guide and carefully lift away.
Assembly
4 • Insert a new lamp, or lamps, by positioning the tab on the lamp
rim so that it faces towards the center of the lamp holder.
5 • Position the lamp rim under the spring and press it outwards
against spring pressure until it can slide under the guide.
6 • Lock the lamp in place by allowing the spring pressure to slide the
lamp into the holder.
Note: ensure that the tab on the lamp rim fits into the slot of the
holder.
7 • Reconnect the relevant connector.
8 • Carry out the calibrations specified below.
9 • Refit the lamp cover A by sliding it onto the two 3 mm dome head-
ed allen screws and then tighten the screws.
Adjustments and tests required
White calibration in transmission and reflection (section 5•5).
Service Manual • ScanMate 4000/5000 Edition 1 • January 1996
Halogen Lamps
4•3b