Power-Up Sequence - HP 9020 Service Manual

3-2
Testing and Troubleshooting
Wait
Turn Off
Bootstrap Loader
Card LED
(if applicable)
Send Loader Here
Message to
Output Modules
Call Test Module for
Each Peripheral
Address (PA)
Look for
as
on
Removeable Media
On lOP 1, 2, and 3
On PA 0,1 ... 7 and
Report Errors
Look for
as
on
Fixed Media
On lOP 1, 2, and 3
On PA 0,1...7 and
Report Errors
Send Loader Done
Message to
Output Modules
Jump to
as
which
Runs Self-Test
Supervisory Code
Figure 3-1. Power-up Sequence
Send Error Message
to Output Modules