Workstation 4 System Board And Components - Micros Systems Workstation 4 LX Service Manual

Introduction to the WS4/WS4 LX FRUs

Workstation 4 System Board and Components

Workstation 4 System Board and Components

Figure 1-5 shows the original WS4 with the AB28 series or ABRD36 system board
and components.
Figure 1-5: Original Workstation 4 System Board and Components
• Bare Workstation 4 System Board - P/N 400613-002.
Bare ABRD36 system board does not include DIMM, Boot Loader, Disk On Chip
Battery, CF Daughter Card and Processor heatsink. The ROHS compliant WS4
system board designated ABRD36-B, (Revision B) is the current replacement
board for the original WS4.
Physically, the ABRD36 system board is a drop-in replacement for the AB28-I
system board, using the same interface cables, DOC, boot loader, CF card, and
DIMMs. If this board replaces the AB28-F or AB28-G system boards, see Chapter
6 to install the LCD and backlight cables with the proper 'offset.'
• DIMM, 128M SDRAM - P/N 700502-172.
Replacement 128M SDRAM DIMM. Compatible with the AB28 and ABRD36
boards, as well as the KWS4 system board. Not compatible with the LX System
board.
1-8 Workstation 4 and 4 LX Field Service Guide