Digital Equipment RW504-ZA, Service Manual

Page: 61 / 220

Table 4–1 (Cont.) Operation/Installation Troubleshooting
Task Problem/Symptom What to do
Changing the
drive address Changed drive address
but new address is not
recognized. After changing an address, the autochanger
power and/or the host system power may
need to be cycled for the new address to
be recognized. (Refer to the host system
documentation for information on setting
peripheral addresses and shutting down
the host system.)
Inputting
Security Code Security code forgotten
or misplaced for the
autochanger. First, try the default security code (0-0-
0). If the security code is not set to the
default, locate the 8-switch dip switch
on the controller PCA (See Figure 5–3),
and set switch 1 to the ‘‘closed’’ position.
Switch on the autochanger. This clears
NVRAM and sets the security code to the
default code. NOTE: Once this has been
done, the switches must be reset to their
original settings in order for NVRAM to
be maintained the next time power is
switched off. The customer may now use
configuration 17 to set a new security code.
(See Section 3.3.6)
Loading Disks Disk inserted in
mailslot, but the display
reads
ERROR
,
EMPTY
, or
MISLOAD
.
Remove the disk from the mailslot and
try inserting it again. Push the disk in,
shutter-end first, so that the disk is flush
with the optical disk library front panel.
Powering on The optical disk library
won’t power on. Check to make sure the power cord
connections are tight.
Check to see that both the back power
switch and the front operation switch are
in the ON position.
Check to make sure the power outlet is
operating.
Check the voltage select switch setting.
Replace the fuse with a new one.
Replace the power cord with a known good
one.
Replace the power supply module.
(continued on next page)
Troubleshooting and Diagnostics 4–3