How to replace
Removal
1 • Remove the following covers:
Lamp cover A and back cover B, (section 4•2 steps 1-2).
2 • Remove the hardware unit, (section 4•5, steps 2-6).
3 • Disconnect connectors J2, J3 and J4 from the driver board.
4 • Disconnect the 2 pin connector (red/black leads) to the cooling fans.
5 • On ScanMate 5000 (0210 model), the driver board has a booster print
board fitted, therefore it is necessary on this model to unscrew the brass-
colored connector from the booster print board, (to the bar code board).
Note: this connector should be fingertight.
6 • Remove the two 2.5 mm posidrive screws A from the driver board.
7 • Support the driver board and remove the eight 2.5 mm posidrive screws
B underneath the hardware unit, securing the board.
8 • Carefully move the driver board to the right, (as viewed from the back of
the scanner), in order to clear the two locating tabs.
9 • Lift the driver board partly away and, on the ScanMate 5000, (0200
model), remove the 2.5 mm posidrive screw securing the ground, (earth)
connection. Lift the board completely away.
Assembly
10 • On ScanMate 5000, (0200 model), connect the ground, (earth) connect-
ion from the new driver board to the hardware unit using the 2.5 mm
posidrive screw, before mounting the board.
11 • Fit the left hand edge of the driver board underneath the two locating
tabs and secure with the two 2.5 mm posidrive screws A.
12 • Support the driver board and fit the eight 2.5 mm posidrive screws B
underneath the hardware unit.
13 • On ScanMate 5000, (0210 model), connect the brass-colored connector
on the booster print board to the bar code board, (finger tight only).
Note: on ScanMate 4000, this cable is redundant, therefore strap it as
necessary in order to avoid the connector short-circuiting the scanner.
14 • Reconnect connectors J2, J3 and J4.
15 • Reconnect the 2 pin connector (red/black leads) from the cooling fan.
16 • Refit the hardware unit, (section 4•5, steps 7-11).
17 • If no further replacement operations are required, refit the covers rem-
oved in step 1 in accordance with section 4•2.
Adjustments and tests required
White calibration in transmission and reflection (section 5•5).
Focus calibration (section 5•4).
Service Manual • ScanMate 4000/5000 Edition 1 • January 1996
Driver Board
4•10b
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