Tektronix AWG7000 Series Service Manual page 27

Module Overviews
Front Panel (FP) Board
LCD Adapter (LCDA) Board
Multi-Input/Output (MIO)
Board
AWG7000 Series Service Manual
A Microsoft Windows processor system is the primary controller of the instrument.
The instrument features an XGA resolution flat-panel display, a transparent touch
screen, and a front panel with direct access to commonly used instrument
functions. You can also make complete use of the instrument with a mouse and a
keyboard.
Push-button switches on the Front Panel (FP) board are read by an embedded micro
controller, which sends the button and knob change information to the µATX board
via a USB path. The FP board consists of the following blocks:
USB controller (Cypress EZ-USB FX1)
FPGA (Altera Cyclone)
Key switch matrix
LED indicators (Tri-Color and Mono-Color)
The LCDA board supports interconnection between the µATX board and FP
board. Two internal USB ports come from the µATX board. One USB connects to
a touch panel controller. The other connect to a micro controller on the FP board.
Connectors related to the LCD are also included. The LCDA board consists of the
following blocks:
Touch-panel controller
Rotary encoder (signal goes to the FP board)
LCD back light controller
Connector to LCD
The MIO board coordinates the flow of data through the Windows PCI port from
various devices that communicate with the µATX system. The devices include the
display system, GPIB, TekLink, and data flow (PCIF) path to the waveform
generator system. An EEROM on this board is used to store the instrument setting
and calibration data. The MIO board consists of the following blocks:
PCI controller
GPIB controller
LCD display controller (ATI Mobility-MI)
PCI target adapter
PLD140 (Xilinx FPGA)
EEPROM for calibration data storage
TekLink interface
Theory of Operation
2-3