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Troubleshooting
HP Designjet 4500 Printer Series Service Manual
Using the Buzzer at Power-up to Troubleshoot
When the Printer is powered up, it doesn’t make a "Beeping Sound" until it
is completely powered-up and ready to use. If there is a beep during the
power-up sequence, this may signify that there is a problem within the
Electronics Module. The following table will help you to use the "Beeping
Sound" to diagnose certain problem:
Number
of
Beeps
Problem
Description
Corrective Action
1 Processor absent
Replace the Main PCA ⇒ Page 8-81.
2
Faulty Main PCA
or PSU
Replace the Main PCA ⇒ Page 8-81.
Replace the PSU ⇒ Page 8-85.
3
Faulty Memory
Module
Check that the Memory Module is
installed correctly.
Try installing the Memory Module in
the other Memory slot and check if
the problem reappears.
If the problem reappears, r
eplace
the
Memory Module
⇒ Page 8-79.
If the problem does NOT reappear,
then the original slot could be faulty.
In this case, replace the Main PCA
⇒ Page 8-81.
4
Faulty Video
Card (not used)
Replace the Main PCA ⇒ Page 8-81.
5Faulty PCI Card
Replace the Main PCA ⇒ Page 8-81
6BIOS Damaged
Replace the Main PCA ⇒ Page 8-81
7
Motherboard
damaged
Replace the Main PCA ⇒ Page 8-81
8
Hard Disk Drive
damaged or
missing
Remove the Main PCA Cover and
(with the Printer switch On) check that
the HDD is spinning (you should feel
it spinning when you touch it or at
least hear it spinning). If the HDD is
not spinning, then it could be
damaged. In this case, replace the
HDD
⇒ Page 8-83.
Make sure that ALL cables connected
to the HDD are not damaged and
are connected correctly.
Replace the HDD
⇒
Page 8-83
Replace the Main PCA ⇒ Page 8-81
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