Contex SD One+ How to use

June 2016
Model: SD One+
Technical Service Guide
Wide Format Scanners

About this Guide 2
Contents.
Contents. ......................................................................................... 2
Information ..................................................................................... 3
Revision Table ...................................................................................... 3
Design ............................................................................................. 5
Block Diagram ...................................................................................... 6
Wiring Diagram .................................................................................... 7
Scanner Controller Board Layout (SULN & SULO) ................................... 8
Power Supply (external)........................................................................ 9
CIS Unit Construction .......................................................................... 10
Raising CIS Bridge Unit ........................................................................ 11
Belt tension (Motor) ........................................................................... 12
Troubleshooting............................................................................. 13
Troubleshooting Sequence.................................................................. 14
Troubleshooting ................................................................................. 15
Banding Problems. ............................................................................................ 15
Image Quality Problems.................................................................................... 15
Dust Problems................................................................................................... 16
Stitching Problems. ........................................................................................... 16
Part Replacement .......................................................................... 17
Identifying Parts................................................................................................ 17
Parts List............................................................................................................ 17
Electronics......................................................................................................... 17
Mechanics. ........................................................................................................ 17
Common Hand Tools. ....................................................................................... 17
Identifying Parts ................................................................................. 18
RHS & LHS Cover................................................................................. 20
Scanner Controller Board (SULx).......................................................... 21
CIS Element ........................................................................................ 23
CIS Cable ............................................................................................ 25
Paper and Lid Sensors ......................................................................... 26
Stepper Motor Assy ............................................................................ 28
Power Switch & Connector.................................................................. 30
USB Cable, Panel mount...................................................................... 32
Pressure Rollers.................................................................................. 33
Damper for CIS Bridge......................................................................... 34
Top Lid Cover incl. Control Panel ......................................................... 36
WIDEsystem Service, walk though ..................................................40
Erase Parameter block....................................................................48
Firmware Download, walk-through ................................................50
Scanner Terms................................................................................54
Error Codes.....................................................................................66
Software Related Errors ...................................................................... 66
Scanner Related Errors........................................................................ 68
Scanner License ..............................................................................76
Scanner License System, General......................................................... 76
Main Board Replacement.................................................................... 77
Temporary Board swap....................................................................... 86
Problem with Activation ..................................................................... 86

Service Guide SD One+ 3
Information
Revision Table
1.0
First release.
June 2016
GJV

Service Guide SD One+ 4
Document Title.:
SD One+ Technical Service Guide
Doc. No.:
FST/TSG/002
Prepared by.:
GJV
Distribution.:
Tegningsarkiv, Svendborg
Issue revision date.:
1.0 29th June 2016
Scanners covered by this ServiceGuide.:
SD One+ 24”
SD One+36”
This service guide is for the SD One+, and has been taken from the original SD One Service Guide. Most of the photos will still show the
original SD One, as the models shares the same technics for replacing components.
This document is the property of Contex A/S. The data contained herein, in whole or in part, may not be duplicated, used or disclosed outside the Recipient for any
purpose other than to conduct technical evaluation. This restriction does not limit the Recipients right to use information contained in the data if it is obtained from
another source without restriction.

Service Guide SD One+ 5
Design
Electronics.
Block Diagram.
Wiring Diagram.
Circuit Board Layouts.
CIS Unit Construction.
Adjustments.
Belt tension.

Service Guide SD One+ 6
Block Diagram

Service Guide SD One+ 7
Wiring Diagram

Service Guide SD One+ 8
Scanner Controller Board Layout (SULN & SULO)

Service Guide SD One+ 9
Power Supply (external)
The External Power Supply has a build in surge protection feature,
if the surge protection is triggered it will shut down for about 3 min
before it will recover.
The Power Supply is a +19 volt DC.

Service Guide SD One+ 10
CIS Unit Construction
CIS Unit.
Warning: The CIS unit is factory mounted and must not be Disassembled further than replacing Scanner Control Unit, Paper/Lid sensors, Glass
plate and USB cable. Ignoring this warning may cause failures that cannot be corrected in the field.

Service Guide SD One+ 11
Raising CIS Bridge Unit
Tools:
T20 Torx Screwdriver.
Prerequisites:
Switch power off.
1. Depress the latch levers at both ends of the
scanner.
2. Raise the CIS Bridge Unit.
Note: Close by pressing down on the CIS Bridge Unit
until the latches click shut at both ends.

Service Guide SD One+ 12
Belt tension (Motor)
Tools:
T15 Torx Screwdriver.
Prerequisites:
Switch power off.
Raise CIS Bridge Unit as shown on page 11.
Remove RHS cover, see page 20.
1. Loosen the Locking screw.
2. Rotate the drive shaft without touching the belt.
3. Tighten the locking screw.
4. Remount the Cover

Service Guide SD One+ 13
Troubleshooting
Troubleshooting Sequence.
Image Quality problems.
Dust Related Errors.
Calibration Related Errors.
Crumpled or Folded Originals.
Note!
Before replacing any electrical parts such as SUx (Scanner Control Unit) or the CIS Unit, the parameter block should be erased and the
scanner calibrated. This will solve the problem in most cases, especially if the reported problem is about image quality or identifying the
calibration sheet. The Pressure Rollers and the Glass Plate should also be inspected for wear and tear.

Service Guide SD One+ 14
Troubleshooting Sequence
This is a suggested Troubleshooting Sequence and will work in
most cases. There are always some grey zones, especially if the
problem is related to image quality.

Service Guide SD One+ 15
Troubleshooting
Banding Problems.
Bad/no grey balance calibration (CIS module to
module match).
Image Quality Problems.
Scanning originals that have folds or are crumpled
on CIS scanners is often confused as a defect in
the scanner, where it is actually a limitation of the
technology used. Due to the very short distance
from the sensor to the surface of the original,
referred to as the “Focal Length”, if the document
does not stay in contact with the glass plate then
it is very likely to be out of focus.

Service Guide SD One+ 16
Dust Problems.
There are image quality problems that are not
related to HW errors. These could be due to
insufficient cleaning, bad calibration or limitations
in the CIS technology. Streak’s running in the
scan direction which seems to appear and
disappear during the scan is most likely caused
by dust. Clean the scanner and the original. The
streaks are often a darker shade of color.
Streaks that run in scan direction, that are color
independent or a lighter shade of the color, are
often related to the calibration. Dust that was
present in the scanner during calibration, but has
been cleaned away since.
Stitching Problems.
Other issues could be that the scanner simply
needs to be calibrated, either because the
parameter block has been erased, never been
calibrated or that the scanner has been moved
around.
Stitching problem between 2 CIS modules.

Service Guide SD One+ 17
Part Replacement
Identifying Parts.
Parts List.
Electronics.
Scanner Controller Board (SULx).
CIS Element.
CIS Cables.
Stepper Motor Assy.
Paper/ Lid Sensor.
USB Cable and Connector.
Power Switch and Connector.
Mechanics.
RHS Cover.
LHS Cover.
Pressure Rollers.
Damper Assy for CIS Bridge.
Top Lid Cover (including Control Panel)
Common Hand Tools.
Torx 10 Straight.
Torx 15 Straight.
Torx 20 Straight.
Note!
Before replacing any electrical parts such as SUx (Scanner Control Unit) or a CIS Elements, try Erasing the Parameter Block and re-calibrate
the scanner in order to force the scanner to re-create the contents of the parameter block. This will solve the problem in most cases.

Service Guide SD One+ 18
Identifying Parts

Service Guide SD One+ 19
Fig
Part no.
SD One+ 24”
SD One+ 36”
Description
Service parts
3-03
2853D101
X
SULO Controller Board (SD One+ 24)
3-03
2853D102
X
SULO Controller Board (SD One+ 36)
3-02
0075A160R01
X
X
Paper/Lid Sensor (1 pcs.)
1-04
2853D105
X
X
CIS Element (1 pcs) (LSH1208)
3-01
2853D107
X
Cable Set for CIS Elements (3 pcs)(24’’)
3-01
2853D106
X
Cable Set for CIS Elements (5 pcs)(36’’)
2-01 & 2-02
2853D108
X
Power Inlet Assy, SD One+ 24
2-01 & 2-02
2853D109
X
Power Inlet Assy, SD One+ 36
2-03
0090B087R01
X
X
USB2.0 Cable, Panel Mount
2-04
2853D104
X
X
Stepper Motor, STA-42D2014
2-05
2853D110
X
X
Damper Assy. for CIS Bridge, SD One+
1-02
2853D111
X
X
LHS Cover, SD One+
1-01
2853D112
X
X
RHS Cover, SD One+
-
2853D127
X
Top Lid Cover incl. Control Panel (SD One+ 24)
-
2853D128
X
Top Lid Cover incl. Control Panel (SD One+ 36)
Consumable’s & Customer replaceable parts
1-05
5229D014R01
X
Glass Plate, 24”
1-05
5398A008
X
Glass Plate, 36”
1-03
2853D115
X
Pressure Rollers (SD One)(3 pcs)
1-03
2853D116
X
Pressure Rollers (SD One)(5 pcs)
N/A
2853D113
X
Calibration Sheet, SD One+ 24
2853D114
X
Calibration Sheet, SD One+ 36
5398A009
X
X
USB2.0 Cable with Ferrite, A/B, 3m
2853D103
X
X
DC Adapter, SD One+

Service Guide SD One+ 20
RHS & LHS Cover
Tools:
T20 Torx Screwdriver.
NOTE:
The procedure of removing the covers is the same for
both the Right Hand Side (RHS) & Left Hand Side
(LHS).
1. Remove plastic screw covers.
2. Remove handle screw (T20).
3. Remove handle.
4. Remove cover screws.
5. Remove cover.