HP 8560A Service Manual

Unlocked Reference PLL
........................
Operation
.............................
Troubleshooting
..........................
Third LO Driver Amplifier
......................
Sampler and Sampler IF
........................
Sweep Generator Circuit
........................
A21 OCXO (Option 003 only)
.....................
11. RF Section
Troubleshooting Using the TAM
....................
Low Band Problems (50 Hz to 2.9 GHz)
.................
Low Band Problems
..........................
A7 LODA (LO Distribution Amplifier)
.................
A9 Input Attenuator
.........................
Al3 Second Converter
.........................
Al4 Frequency Control Assembly ....................
A7 LODA Drive
..........................
Al5 RF Assembly
...........................
Confirming a Faulty Third Converter
.................
Confirming Third Converter Output
..................
Third Converter
..........................
Flatness Compensation Control
....................
Control Latches
...........................
SIG ID Oscillator
..........................
10 MHz Reference
..........................
A10 Tracking Generator (Option 002)
..................
Block Diagram Description
......................
Tracking Oscillator ........................
Upconverter ...........................
Pentupler ............................
Modulator ............................
Coupler .............................
Output Mixer
..........................
Output Amplifier .........................
Bias Board ............................
Output Goes Unleveled (ERR 900 or ERR 901)
.............
Excessive Residual FM
.......................
Flatness Out-of-Tolerance
......................
Vernier Accuracy Out-of-Tolerance
..................
Harmonic/Spurious Outputs Too High
.................
Power Sweep Not Functioning Properly
................
No Power Output
..........................
lo-42
lo-42
lo-42
10-44
10-45
10-47
lo-52
11-2
11-4
11-5
11-6
11-7
11-8
11-9
11-9
11-10
11-10
11-11
11-11
11-13
11-13
11-13
11-14
11-18
11-18
11-18
11-18
11-18
11-18
11-18
11-18
11-19
11-19
11-19
11-20
11-21
11-21
1 l-22
11-23
11-23
Contents-7

HP 8560A Specifications

General

Brand	HP
Model	8560A
Category	Measuring Instruments
Language	English