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
• Remove the CPU module by lifting away from connectors J12 and J13 on
the control board.
4
• Disconnect connectors J16, J18 and J19.
5
• On ScanMate 5000 (0210 model), disconnect the connector from the bar
code board, located in IC21.
6
• Remove the nine 2.5 mm posidrive screws from the control board and
remove the board.
7
• Remove #1 amplifier board from J1 on the control board by opening the
two side clips, carefully rotating the board towards the back of the scan-
ner and lifting away.
8
• Remove #’s 2 and 3 amplifier boards from J2 and J3 as in step 7.
Assembly
9
• Refit the three amplifier boards to the new control board by carefully
mounting at an angle, rotating to the vertical position and locking with
the two side clips.
10
• Fit the control board and secure with the nine 2.5 mm posidrive screws.
11
• Refit the CPU module onto connectors J12 and J13 on the control board.
12
• Reconnect connectors J16, J18 and J19.
13
• On ScanMate 5000 (0210 model), reconnect the connector from the bar
code board, into IC21.
14
• Partially refit the hardware unit, (section 4•5 steps 7-10).
Note:
if connector J20, (green) is used on the control board, ensure that
it is connected correctly, (see the caution on page 4•6a).
15
• Carry out the adjustment and test operations specified below.
16
• Carefully push the hardware unit fully in, (connector J1 on the driver
board mates with the backplane) and fit the two 2.5 mm countersunk
allen screws
A
on each side of the unit.
17
• If no further replacement operations are required, refit the back cover
C
in accordance with section 4•2.
Adjustments and tests required
White calibration in transmission and reflection (section 5•5).
Focus calibration (section 5•4).
Register error (section 5•12).
Stripes in shadow (section 5•13).
Service Manual • ScanMate 4000/5000 Edition 1
•
January 1996
Control Board
4•6b
Summary of Contents for ScanMate 4000
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Page 171: ...ScanMate 4000 Type 250 Circuit Connection Diagram ...
Page 172: ...ScanMate 5000 Type 210 Circuit Connection Diagram ...
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