Keysight Technologies X Series Service Manual page 147

RF Section Troubleshooting (RF/Microwave Analyzers)
RF Section Description
Table 4-2 A13 RF Front End Signals
Signal Name
RF Input
Microwave Input
E-cal Input
1st L.O. Input
2nd L.O. Input
I.F. Output
To Band Pass Filter
From Band Pass Filter
Front End Control Assembly
Provides the correct biasing and switch control logic to the following RF
assemblies:
— Input Attenuator A
— Input Attenuator B
— Low Band Switch
— YTF Preselector (Input signals > 3.6 GHz)
— RF Front End Assembly
— (Optional) Low Band Preamplifier
— (Optional) Electronic Attenuator (0-24 dB)
— (Optional) Microwave Preselector Bypass
Refer to
troubleshooting procedures
Keysight N9010A EXA Service Guide
Description
9 kHz to 3.59 GHz RF Input
3.6 GHz to 26.5 GHz
U-wave RF Input
Cal Signal Port
3.8225 to 8.7225 GHz 1st L.O.
4.8 GHz 2nd L.O.
322.5 MHz I.F. Signal
Filter Port, 1st I.F.
Amplifier Output
Filter Port, 2nd Mixer Input
Chapter 6, "Front End Control Troubleshooting."
From
A11J2, Low Band Switch
YTF Output or SW1
A16J705, Ref. Bd
A14J40, Synth. Bd
A16J702, Ref Bd
A13J7
A13J10
5.1225 GHz Cavity Output
for detailed descriptions &
To
A13J2
A13J9
A13J6
A13J4
A13J1
A2J100, AIF or
A15J902, EFEC
5.1225 GHz Cavity Input
A13J11
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