Introduction; Maintenance; Troubleshooting - Motorola SYMBOL LS9203 Reference Manual

Introduction

This chapter covers suggested scanner maintenance, troubleshooting, technical specifications, and signal descriptions (pinouts).

Maintenance

Cleaning the exit window is the only maintenance required. A dirty window may affect scanning accuracy.
• Do not allow any abrasive material to touch the window.
• Remove any dirt particles with a damp cloth.
• Wipe the window using a tissue moistened with ammonia/water.
• Do not spray water or other cleaning liquids directly into the window.

Troubleshooting

Problem
The omni-line scan pattern does not display when
the directions are followed for installing the
interface cable on 1-4.
Scan line(s) display, but bar code cannot be read.
Bar code is decoded, but not transmitted to the host. Scanner is not programmed for the
Scanned data is incorrectly displayed on the host.
If after performing these checks the symbol still does not scan, contact the distributor or call the local Global
Customer Interaction Center. See
Note
Possible Causes
No power to the scanner.
Interface cable is not properly
connected.
Scanner is not programmed to read the
bar code type.
Bar code is damaged.
Bar code is too far from scanner.
The host has disabled scanning or
overridden parameter settings.
correct host type.
Scanner is not programmed to work with
the host. Check scanner host type
parameters or editing options.
page xiv for contact information.
Maintenance and Technical Specifications 3-3
Possible Solutions
Ensure the host has power, and is on. If the scanner uses a
separate power supply, ensure it's connected to a working AC
outlet.
Check for loose cable connections.
Ensure scanner is programmed to read the bar code type being
scanned.
Try scanning other bar codes of the same bar code type.
Move the bar code closer to the scanner.
See the technical person in charge of scanning.
Scan the appropriate host type bar code.
Ensure proper host is selected.
For RS-232, ensure the scanner's communication parameters
match the host's settings.
For keyboard wedge, ensure scanner is programmed with the
correct country code and that the CAPS LOCK key is off.
Ensure editing options (e.g., UPCE-to-UPCA Conversion) are
properly programmed.