Agilent Technologies 8935 Series, Руководство пользователя

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Chapter 3 49
Troubleshooting
How to Troubleshoot the Test Set
Figure 3-2 Agilent 8935 Test Set Troubleshooting Flowchart
Step 1. Power-up the Test Set to run self diagnostics.
Step 3. If you suspect that a problem still exists, run the AF, RF, and/or CDMA Diagnostics
test of the SERVICE4 program. See
"Accessing the Diagnostic Tests" on page 62 .
BEGIN
Step 2. Run the FUNCTIONAL DIAGNOSTICS on the SERVICE
MENU. See
“Functional Diagnostics (Step 2)” on page 62 .
Step 4. If you still suspect a problem, use the manual troubleshooting
procedures. See
"Manual Troubleshooting Procedures (Step 4)" on page 75 .
Problem detected?
Perform "Product Verification" on page 90 .
Repair Test Set according to findings.
Did you hear the fan
running?
Check for faulty:
1. fan,
2. power supply
3. assembly pulling line voltage
low. See
"If the Test Set Fails to
Power-up" on page 52 .
Problem detected?
Repair Test Set
according to diagnostics. Perform "Product
Verification" on page 90 .
Problem detected?
Repair Test Set
according to diagnostics. Perform "Product
Verification" on page 90 .
Perform "Product
Verification" on page 90 .
NO
YES
Turn off Test Set and remove external and internal covers.
Power-up Test Set and read Status LEDs for Self-Test
errors Refer to
"Reading LED Codes" on page 56 .
Turn off Test Set and remove
external and internal covers.
Power-up Test Set and read Status
LEDs for Self-Test errors. Refer to
"Reading LED Codes" on page 56 .
Is display screen
blank?
Does a self-test
error appear?
Component problem. Repair Test
Set and perform
"Product
Verification" on page 90 .
Self-Test error
problem?
Display problem, replace display and perform "Product
Verification" on page 90 .
Misc. hardware or
SBRC problems?
Refer to "Reading Front
Panel or GPIB Codes"
on page 54
.
Perform "Product Verification" on
page 90 .
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES