2-4
Workstation 4 and 4 LX Field Service Guide
WS4 Technical Overview
Workstation 4 System Block Diagrams
Figure 2-3 displays the third variation of the original WS4, based on the ABRD36
System Board and Sharp LG41 LCD.
Figure 2-3: WS4 Block Diagram /w ABRD36 System Board and Sharp LCD Panel
The ABRD36 System Board is combined with Backlight Inverter Board XBRB33,
and CF Daughter Card XBRB36 to complete a ROHS compliant WS4.
The ABRD36 system board is compatible with the AB28-I board as a drop-in
replacement (each uses the same LCD and Backlight Inverter cables), but it requires
the GR2.2 Platform software to function correctly.
The configuration shown above entered production in approximately June 2006 and
continued until the release of the Workstation 4 LX in July 2007. Non-ROHS
compliant Workstation 4s were also produced during this period.
Over 172,000 Workstation 4s were produced in one of the three basic configurations
presented here. Workstation 4 EOL occurred in July 2007, with hardware support
continuing through late 2012. See Chapter 4 for more information about the WS4 LX
System Board.
