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Initial Observations - Normal Power-up Sequence
Prepare the analyzer for observation by performing these steps:
1. Disconnect all accessories and peripherals.
2. Remove the disk (if any) from the internal disk drive.
3. Connect a known-good cable between the RF OU and RF IN ports.
Switch ON the analyzer and watch for the proper power-up sequence:
1. Immediately after the analyzer's line power is switched on, the disk drive light activates
brie
y and a \beep" is audible from the CPU.
2. he CR lists the bootROM self-tests being performed. ( he CR may take a few seconds to
warm up.) If all bootROM self-tests pass, the analyzer beeps twice.
3. he disk drive light illuminates brie
y and the rmware loads from ROM.
4. he analyzer runs all of the remaining self-tests and the CR displays the PASS/FAIL status
of the self-tests.
5. During the next few seconds, these messages appear on CR :
a.
Initializing
b.
Calculating correction coefficients
c.
Initializing detector corrections
d. Other messages may appear brie
y, depending on the analyzer's state at the time that the
power was switched o .
Figure 4-2. Connecting the Extender Board
T roubleshoot ng and Block D agrams
4-5
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