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Focus
Service Manual
October 2007

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Summarization of Contents

Revision History
1690 Revision Details
Details of revisions for the 1690 model.
1633 Revision Details
Details of revisions for the 1633 model.
1650 Revision Details
Details of revisions for the 1650 model.
1890 Revision Details
Details of revisions for the 1890 model.
Basic IR and Illumination Functions
IR Functions
Details on Near and Far IR operation modes and ranges.
Illumination Modes
Explains Linear, Near, Far, and Targeting illumination modes.
Assembly Instructions for 1690A & B
Interface Installation
Steps for installing the interface board and cable.
Decode Installation
Steps for installing the decode board and related cables.
Camera Assembly Installation
Steps for installing the camera assembly and cable.
Illumination Assembly Installation
Steps for installing the illumination assembly and related components.
Case Screw Installation
Instructions for installing the case screws.
Assembly/Disassembly Changes for 1633B (Focus Bluetooth)
Transceiver Board Installation
Steps for installing the transceiver board for the 1633B model.
Assembly/Disassembly Changes for 1690D
Decode Board Changes
Details on changes to the decode board for the 1690D.
Camera Assembly Changes
Details on changes to the camera assembly for the 1690D.
Illumination Assembly Changes
Details on changes to the illumination assembly for the 1690D.
Cable Changes
Details on changes to flex cables for the 1690D.
Assembly/Disassembly Instructions for 1650A
Part Differences for 1650A
Lists key part differences for the 1650A scanner.
Disassembly of 1650A
Instructions for disassembling the 1650A scanner.
Assembly of 1650A
Steps for assembling the 1650A scanner, including cable folding.
Disassembly & Assembly of 1890A
Disassembly of 1890A
Instructions for disassembling the 1890A model.
Assembly of 1890A
Steps for assembling the 1890A model, including gasket and fixture use.
Window Gasket Installation
Important notes and identification for window gasket installation.
1890 Close-up Assembly Instructions
Detailed steps for closing and securing the 1890A unit using a fixture.
Spare Parts Usage
Interface Boards Usage
Guidelines for using interface boards.
Bluetooth Transceiver Board Usage
Usage instructions for the Bluetooth transceiver board.
IR Board Usage
Procedures for replacing and configuring the IR board.
Decode Board Usage
Instructions for replacing and configuring the decode board.
Decode Board BT Usage
Usage for the Bluetooth decode board.
Decode Board Blackfin Usage
Usage for the Blackfin decode board.
Decode Board BT Blackfin Usage
Usage for BT Blackfin decode board.
Bottom Case Usage
Guidelines for replacing bottom cases and covers.
Top Case Assembly Usage
Usage for top case assemblies, including BT and 1890 models.
Window Gasket Usage
Usage for the window gasket on 1890 illumination assembly.
Camera Assembly Usage
Usage for standard and Blackfin camera assemblies.
Illumination Assembly Usage
Usage for standard, Blackfin, and 1890 illumination assemblies.
Beeper Assembly Usage
Usage for replacing a defective beeper assembly.
RJ45 Assembly Usage
Usage for RJ45 assemblies, including 1650 model.
Flex Cable Usage
Usage and compatibility for various flex cables.
Label Usage
Usage for logo and serial labels.
Rev D Upgrade Kits
Usage of kits to upgrade scanners to Rev D.
Potential Failure Areas
Trigger Failures
Common failure points related to the trigger, including color-specific replacement.
Camera System Failures
Common issues within the camera system, including optics and connections.
Illumination System Failures
Common issues within the illumination system.
IR System Failures
Common issues affecting the IR system performance.
Decode Board Issues
Potential problems with the decode board components.
Interface Board Issues
Potential problems with the interface board components.
RJ45 Assembly Issues
Potential problems with the RJ45 assembly and flex cables.
Beeper and Top Case Issues
Potential problems with the beeper and top case, including rubber damage.
Troubleshooting Equipment & Software
Diagnostic Software and Fixture
Overview of Focus Diagnostic Software and Fixture capabilities.
Uber Box for Communication Testing
Using the Uber box for testing scanner communications.
Metroset2 Software
Functions of Metroset2 for settings and software updates.
Diagnostic Cables and Power Supplies
Usage of specific cables and power supplies for diagnostics.
Model & Revision Troubleshooting Differences
1690 Troubleshooting Differences
Troubleshooting guidance for 1690 models and revisions.
1633 Troubleshooting Differences
Troubleshooting guidance for 1633 models and revisions.
1650 Troubleshooting Differences
Troubleshooting guidance for 1650 models and revisions.
1890 Troubleshooting Differences
Troubleshooting guidance for 1890 models and revisions.
Run Diagnostic Tests
Unit Parameters Test
Gathers and displays scanner parameters like serial number and DAC settings.
Camera Test
Verifies camera data output by sending a fixed pattern.
IR Test
Checks the activation points of the two IR fields.
Linear Exposure Test
Tests auto illumination control in linear mode, measuring exposure time.
Area Far Exposure Test
Tests auto illumination control in area mode using far field LEDs.
Area Near Exposure Test
Tests auto illumination control in area mode using near field LEDs.
Spot Test
Evaluates dark and bright regions within an image.
Reconfiguring IR DACs and Illumination DACs
IR DAC Configuration
Procedures for configuring IR far and near DACs.
Illumination DAC Configuration
Procedures for configuring Area and Linear illumination DACs.
Run Communications Tests
Checking Unit Current
Procedure for checking the scanner's current draw.
Testing Communications Setup
Setup procedure for testing scanner communications using Uber box.
1633 Bluetooth Troubleshooting
Equipment and Setup for 1633 Bluetooth
Required equipment and setup for troubleshooting Bluetooth scanners.
BT Board Configuration and Testing
Steps for configuring and testing the BT board.
Serial Number Reprogramming
Scanning Method for Serial Number
Method to reprogram serial number by scanning barcodes.
Serial Programming Method
Method to reprogram serial number using serial commands.