Keysight Technologies Infiniium 90000A Series, Service Manual

Page: 134 / 136

134 90000 A-Series Service Guide
7
Theory of Operation
main connections to the FPGA. In addition, the FPGA generates PCI interrupts for
special events such as front-end overload, the timer done, and a stopped cooling
fan.
Main FPGA connections block diagram
Power Supply Assembly
The AC input to the power supply is 100–240 VAC ±10%. Maximum input power is
800 W. The AC input frequency is 47 to 63 Hz.
Filtered voltages of +3.3 V, +2.5 V, +1.8 V, +1.2 V, -6 V, -5.2 V, -5 V, and –2.3 V are
supplied and distributed throughout the oscilloscope.
Monitor Assembly
The Flat Panel Display (FPD) monitor is a thin film liquid-crystal display (TFT-LCD).
This FPD is a 12.1–inch diagonal, 1024 x 768 pixel XGA color monitor.
Disk Drive
The hard disk drive is a high-capacity, shock-resistant unit. It is used to store the
oscilloscope’s operating system and certain system configuration data.
The drive can also be used to store and recall oscilloscope setups and waveforms.
Main
FPGA
Memory
Controller
Memory
Controller
Acq
FPGA
Acq
FPGA
Memory
Controller
Memory
Controller
Config
PROM
Philips
PX
1011A
Misc
I/Cs
SATA
Conn
Backplane
Board
Acq board
Acq board
...
...
Trigger
FPGA
PCIe
Cables
JTAG
Conn
JTAG
Conn
Bus
Addr/Data
Configuration JTAG
PIPE
Misc