System Errors (600 To 651); Digital And Checksum Errors (700 To 799) - HP 8560E Service Manual

General Troubleshooting
System Analyzer Programming Errors (100 to 150)
599 LOG GAIN Fidelity gain error from DC logger calibration.

System Errors (600 to 651)

ADC timeout errors occur if the A2 controller assembly
frequency counter is faulty. Refer to Chapter 7,
"ADC/Interface Section."
Hardware/firmware interaction; check other errors.
600 SYSTEM
Hardware/firmware interaction; check other errors.
601 SYSTEM
650 OUTOF RG ADC input is outside of the ADC range.
Microprocessor is not receiving interrupt from ADC.
651 NO IRQ

Digital and Checksum Errors (700 to 799)

EEROM Checksum Errors (700 to 704)
Faults on the A2 controller assembly can cause these
errors. Refer to Chapter 9, "Controller Section."
Although some of these errors might result in a
blanked display, it is possible to read these errors over
HP-IB. Refer to "Troubleshooting to a Functional
Section" in this chapter.
The EEROM on A2 is used to store data for frequency
response correction, elapsed time, focus, and intensity
levels. Error codes from 700 to 703 indicate that some
part of the data in EEROM is invalid. An EEROM error
could result from either a defective EEROM or an
improper sequence of storing data in EEROM. Check
the EEROM with the following steps:
1. Place the WR PROT/WR ENA jumper on the A2
controller assembly in the WR ENA position.
2. On the spectrum analyzer, press
SERVICE CAL DATA
Enter a value of 130. Press
DATA
3. Press
press
4. Press
128, and press
FOCUS
then on, cycling the power.
5. If errors are still present, the EEROM A2U501 is
defective. Refer to the EEROM replacement
procedure in Chapter 3.
324
,
FLATNESS
, , and .
YES DISPLAY
, enter an intensity value of 90, and
INTEN
.
STORE INTEN
,
MORE 1 OF 2 FOCUS
STORE
. Press to turn the spectrum analyzer off,
LINE
,
CAL MORE 1 OF 2
, and
FLATNESS DATA
,
PREV MENU STORE
, enter a focus value of
Chapter 6
,
.