Monitor Assembly; Acquisition System; Front Panel - Keysight Infiniium 9000 Series Service Manual

Monitor Assembly

The Flat Panel Display (FPD) monitor is a thin film liquid-crystal touch screen
display (TFT-LCD). This FPD is an 15 inch diagonal, 1024 by 768 pixel XGA color
monitor.

Acquisition System

There is one acquisition assembly. The acquisition boards contain the TUT
modules, the Onboard ADC, the clock distribution, the data management ASICs,
the external acquisition memory, the ADC, the communication and programming
FPGA, and the supporting power supply circuitry.

Front Panel

The front panel board and autoprobe board are split into three interconnecting
PCAs. The front panel keyboard has a breakaway section that interfaces to the
keyboard. This breakaway section receives power supply nets from the acquisition
board and generates programmable voltages for the autoprobe interface.
The keyboard links to the scope PC motherboard through a high-speed USB 2.0
interface. The on-board USB hub serves the PIC microcontroller, the touch screen
controller board, and up to three front panel USB connectors for a customer's
peripherals.
A conductive element on the inside of each key shorts a gap on the underlying
keyboard circuit board. The keyboard controller detects this short and sends the
proper keypress information to the system controller on the motherboard.
Twelve knobs are located on the front panel.
Infiniium 9000 Series Oscilloscopes Service Guide
7
Theory of Operation
139