Manual Troubleshooting Procedures - Agilent Technologies E8285A Manual

Troubleshooting

Manual Troubleshooting Procedures

Manual Troubleshooting Procedures
Test Sets with firmware revision A.04.5X and above operate only at RF
NOTE
frequencies from 800 to 1000 MHz and 1700 to 2000 MHz. A text only error
message "Input value out of range" , will be displayed if invalid
frequencies are set.
If you are not sure a problem exists, you should attempt to duplicate the suspected
problem. This is especially important if the Test Set is being used in a new
application where misapplication, or incorrect operation of the Test Set may be
involved.
An Agilent 8924C Mobile Station Test Set combined with an Agilent 83236B
Cellular Adapter can be used to simulate a high performance CDMA base station
and may be useful in attempting to duplicate the problem.
Refer to following table to determine which diagnostic tests, performance tests,
and periodic self calibration adjustments apply to an assembly. Downloading
calibration data is discussed in
Table 2-2 Relating Assemblies to Troubleshooting Aids
Assembly Name
Keypad
Display
RF I/O
Digital Cellsite 1 & 2
Upconverter
RPG Assembly
Front Panel
Receive DSP
PCMCIA
Signaling Source/Analyzer
Controller
Memory/SBRC
Downconverter
Power Supply Regulator
Fans
70
S:\agilent\e8285\ALR\Book\chapters\trouble.fm
SERVICE7 Program Diagnostic
Test:
Sub-Test
Functional Diagnostics: Self Test
RF Diagnostics:
RF Input/Output
Functional Diagnostics:
CDMA Loopback
RF Diagnostics: Upconverter
Functional Diagnostics: CDMA
Loopback
AF Diagnostics: Audio
Frequency Generators 1 and 2
Functional Diagnostics: Self Test
Functional Diagnostics: Self Test
RF Diagnostics: Downconverter
Functional Diagnostics: Self Test
Chapter 6, "Performance Tests" on page
Performance
Periodic Calibration
a
Test to Perform
RF Generator: PCMCIA Program
Level Accuracy System Power
E6380-61811
SERVICE7:
IQ Modulator
141.
b Cal.-Data
c
Program Needed
No
No
Yes
Yes
Yes
No
No
No
No
No
No
No
Yes
No
No