
168 16800 Series Portable Logic Analyzers Service Guide
8 Theory of Operation
System Block Level Theory
The block-level theory includes the theory of operation of the
logic analyzer in terms of the major subsystems including:
• CPU subsystem.
• PCI board.
• MIB (module interface board).
• Front panel assembly.
CPU Subsystem
The CPU subsystem includes:
• CPU board (more on page 170).
• Disk drives (more on page 170).
• Power supply (more on page 171).
PCI Board
For more information on the PCI board go to page 171.
Hard Disk
Drive
SATA Bus Power
CPU Motherboard
PCI Express x16
15" Touch
Screen Grid
(Option 103)
Keypad
Board
15" Flat
Panel LCD
Display
Front Panel
Interface Board
Digital Video
Rear Panel Signals
Trigger In/Out
Clock In
Primary PCI Bus
PCI Board
Secondary PCI Bus
RS-232
Bridge GPIO
+3.3V, +5V
CPU Power Connector
CPU On/Off Reset
Module Interface Board
Front
Panel
On/Off
12V to 24VDC Fans
15 or 175W
Power
Supply
600W
Power
Supply
USB
Backlight
Inverter
Board
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