HP 9020 - Power-Up Sequence

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