Agilent Technologies 8935 Series, Руководство пользователя

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86 Chapter 3
Troubleshooting
Service Screen
Service Screen
A large number of latch and DAC settings used throughout the Test Set
can also be read and/or set to alter standard operation. The Service
screen uses the internal voltmeter and frequency counter functions to
monitor specific nodes in most assemblies. These functions are
primarily intended to allow the automated internal diagnostic routines
to verify proper instrument operation, and to allow the internal periodic
adjustment routines to modify Test Set operation.
Use these functions for further troubleshooting when the diagnostics
cannot isolate a failure to a specific assembly. To do this, you must
understand how to operate the Test Set and, especially, understand how
the assemblies in the Test Set work together.
How to Access the SERVICE Screen
1. Press the
Preset
key.
2. Rotate the knob to the screen’s title bar and select it (press knob). A
drop down menu appears, see Figure 3-20 .
Figure 3-20 Service Screen
servsrn1.eps
SERVICE Screen
SOFTWARE MENU Screen
SOFTWARE MENU
Description:
Launches disgnostic and calibration programs.
Continue
1
2
4
Run Test
Help
SOFTWARE MENU
Library:
[NO LIB] Program:
ROM
CUSTOMIZE TEST PROCEDURE:
Channel Information
Test Parameters
Order of Tests
Pass/Fail Limits
Save/Delete Procedure
SET UP TEST SET:
Execution Cond
External Devices
Printer Setup
IBASIC Cntrl
LOAD TEST PROCEDURE:
Select Procedure Location:
ROM
Select Procedure Filename:
SERVICE4
Exec
Cnfg
Print
IBASIC Freq
Parm
Seqn
Spec
Proc
service1.eps
SOFTWARE MENU
CDMA GENERATOR
CODE DOMAIN ANALYZER
SPECTRUM ANALYZER
OSCILLOSCOPE
SOFTWARE MENU
RF ANALYZER
RF GENERATOR
AF ANALYZER
INSTRUMENT CONFIGURE
I/O CONFIGURE
PRINTER CONFIGURE
ERROR MESSAGE
SERVICE
HELP
Voltage
SERVICE
V Frequency kHz
Voltmeter Connection
RFIO_DIAG_0
Counter Connection
AUD1_COUNT
Gate Time
50.0
ms
Latch
sgnl_revision
value
19950310
hex
RAM Initialize
Clear all RAM and restart