HP 8924C Assembly page 544

Chapter 14, Diagnostics Descriptions
Description Of Self-Test Diagnostic
1
Remove Test Set cover.
2
Turn power on.
No Failures ...
The LEDs will light for
about 10 seconds, then
all will turn off.
4 3 2
LED Legend
= off
= rapid blink
= steady on or slow blink
Figure 49 Reading the Self-Test Diagnostic Using the Internal LEDs
544
LED Sequences
Failures ...
Three patterns are displayed.
The first blinks rapidly and
indicates the type of failure.
4 3
1
See the following tables.
(The example indicates a
Serial Bus Communication
fault.)
Read LED sequence.
DS1
DS2
DS3
DS4
For multiple failures, the failure
patterns described below will
repeat for all failures detected.
The second and third patterns blink
slowly and indicate failure details.
4 3
1
2
3
NOTE
1 4 3 2
2
This manual covers only
Serial Bus Communication
and Miscellaneous
Hardware failures.
(The example indicates a
faulty A35 Audio Analyzer 1.)
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