Tektronix DSA8300, Руководство по обслуживанию

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Theory of Operation
Rear Panel The removable hard drive contains the product software and operating system
software. It also provides capability to store and access waveform data. The GPIB
allows for external control of the instrument.
You can make hard copies on the GPIB and RS-232 ports. Other ports are
outputs from the ATX board: DVI-I, USB (4), sound, serial, Ethernet, mouse,
and keyboard.
Low Voltage Power Supply The low voltage power supply is a switching power converter with active power
factor control. It supplies power to all of the circuitry in the instrument.
The principal POWER switch, located on the rear panel, controls all power to the
instrument including the Low Voltage Power Supply. The ON/STBY switch,
located on the front panel, also controls all of the power to the instrument except
for part of the circuitry in the Low Voltage Power Supply and stand-by power on
the motherboard.
The power supply sends a power fail (~PF) warning to the processor system if the
power is going down.
Fans The fan assembly provides forced air cooling for the instrument.
The fans are controlled by the PPC processor.
Electrical Sampling Modules
80E01, 80E02, 80E03,
80E06, 80E07, and 80E09
Sampling Modules
The electrical sampling modules (non-TDR capable) are one- and two-channel
sampling modules. Their basic features are listed in the following table. (The
TDR capable sampling modules are describe later.)
Electrical sampling module features
Feature
80E01 80E02 80E03 80E06 80E07 80E09
Number
of
independent
channels 1 2 2 1 2 2
Bandwidth
50 GHz 12.5 GHz 20 GHz 70 GHz 30 GHz 60 GHz
Selectable
bandwidths N.A. N.A. N.A. N.A. 20 GHz,
30 GHz 40 GHz,
30 GHz,
60 GHz
Signal
connectors 2.4 mm
female 3.5 mm
female 3.5 mm
female 1.85 mm
(V)
female 2.92 mm
(K)
female 1.85 mm
(V)
female
Remote
sampler N.A. N.A. N.A. N.A. 2 meter
cable 2 meter
cable
2–4 DSA8300 Digital Serial Analyzer and Modules Service Manual