Keysight N9038A, Service Manual

Page: 421 / 745

1
st
Mixers
(High Band)
A15 Front End Control
W4
W12
W14 17 to 34.5 GHz
W40
W39
W37
W5
Burst Trigger
W38
A13W1 A13W2
A13 Front End Assembly
34.4 to 44 GHz
3.6 to 17.1 GHz
W42
J2
J6 J5 J3 J4 J10 J11
J1
J7
J9
1
st
Mixer
(Low Band)
2
nd
Mixer
(Low Band)
W18 from A16 J705
J12
20 Hz to 3.6 GHz Path
3.6 to 44 GHz Path
From SW2 P4
W3 to A9 & A10
A13A1 Band Pass Filter
5.1225 GHz
Low Band Preamp
+20 dB
J102
Attenuator Control
RF Switch / High Band
Preamp Control
YTF Driver
Front End Assembly Control
J700
J300
J800
A12 YTF
Control
J1
A11 RF Switch / High Band Preamp
Control
High Band Preamp
+30 dB
J4
J3
J1
J2
X2
LO Distribution
Mixer Bias
Amplifier Bias
Switch Control
3.6 GHz
LPF
4.8 GHz LO
From A16 J702
A13A2
50
W
Load
A13A3
50
W
Load
14 GHz
LPF
LOG
DET
VCO
260 MHz
– 400 MHz
120 MHz LPF
J900
J901
J1100
W16 to A2J100
W15 to A3J15
Or
W52 to A25J101
(Option B85)
W22 to Rear Panel
AUX IF OUT
J902
17 GHz
LPF
J13
Band 3
(13.5 to 17.1 GHz)
-30 dBm
-35 dBm
7,661.25 MHz
Signal Path
LO Path
-25 dBm
Input Port
RF Preselector
Input Attenuation
Internal Preamp
Frequency Span
Auto Alignments
Input Frequency
Input Amplitude RF Input J1
Off
10 dB
Off
0 Hz
Off
15.0 GHz
-10 dBm
Instrument Settings
-19 dBm
-20 dBm
322.5 MHz
322.5 MHz
+18 dBm
W44 from A14 J740
J903
N9038A RF Section
Option 544
Low Noise Path Switch
Control
Switched IF Filter Control
µ W Preselector Bypass Switch
Control
J801
J1300
J802
Not Used
Not Used
Not Used
J302
Not Used
Sweep Ramp Output Not Used
J301
Ext. µ W Preselector Drive
Bias T
dac
dac
x2
EXT MIXER
(Opt EXM)
J3
W46 (Opt EXM) W45 (Opt EXM)
1
st
LO OUT
EXT IF OUT
W24 (Opt EXM)