Introduction - Micros Systems Workstation 4 LX Service Manual

Introduction to the WS4/WS4 LX FRUs

Introduction

Introduction

The Workstation 4 has been a very successful MICROS POS terminal - in fact, the
greatest selling unit in company history. It is now over four years old with over
172,000 units in the field. PMA 07-892 announces the WS4 end-of-life in July 2007,
with hardware support available through 2012.
This edition of the Field Service Guide introduces the Workstation 4 LX system board
and related FRUs. All other components including casework, LCD, power supply,
touchscreen, and mag stripe reader are common to both workstations.
• Base Casework and Sheet Metal Components - WS4 and WS4 LX
This section contains base plastics, rear door and hinge, sheet metal components,
rubber feet, hardware and miscellaneous plastic. There are two bases available,
with usage is determined by the System Board Revision.
• System Boards, Components and Power Supply
This section begins with a brief history of the Workstation 4 system board through
the WS4 LX. To keep confusion to a minimum, each system board is referred to
by a model number designation.
• Workstation 4 System Board and Components
This section includes the original Workstation 4 System Board and major
components including a bare system board, Power Supply, CF Daughter Card,
Boot Loader, Disk On Chip, DIMM, and CF card.
• WS4 LX System Board and Components
This section includes the WS4 LX System Board System Board, Power
Supply and major components including the bare system board, CF Daughter
Card, BIOS Chip, USB Flash Drive, and CF card.
• Cables and Toroids
This section includes all WS4 and WS4 LX replacement cables and toroid kit. The
WS4 LX system board retains compatibility with all cables used on the most
recent WS4 units.
• Top Cover - LCD, Touchscreen, and Mag Stripe Reader
This section includes top cover components such as the LCD panel, touchscreen,
and mag stripe reader. The Sharp LCD Panel recently changed from the
LQ121S1LG41 to the LQ121S1LG61, requiring an update to the INF file that
controls backlight brightness levels. Units with the LG61 LCD ship with GR 2.3a
platform software.
• LCD Customer Display - WS4, WS4 LX, and WS5
Includes all replacement components for the Rear or Pole LCD based customer
display. This display may be found on the WS4, WS4 LX and the WS5.
1-2 Workstation 4 and 4 LX Field Service Guide