Digital Equipment DECstation 5000/100 Series, Maintenance Manual

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No
one by one.
TURBOchannel modules
Install the original
End
(Continued)
WS33M110
modules?
aII the TURBOchannel
Have you installed
Yes
No
module?
install a TURBOchannel
display 1111 1111 after you
Do the LEDs still
Yes
End
Replace the TURBOchannel
module that you just installed.
The problem was due to poor
seating. Continue with the
power-up self-test. Trouble-
shoot any errors that power-
up self-test reports.
Figure 4-2. Troubleshooting when the LED display is 1111 1111,
0011 1111, 0011 1110, or 0011 1101
Identifying Failed FRUs 4–7