Loader Rom Test Module Flowchart - HP 9030 Service Manual

r---------,
I
Send Four 16-Bit
I
I
Patterns To From :-_
I A Keyboard Or SCM
I
I Register I
L _________
.J
r--------.,
I Either No Card I
I
or an
r---------
I
"Internal Card"
I
L ________
J
r-------...,
I Save, Write, I
I
Read 5 Patterns, I
_~
Restore To Each I
I LocatIOn (2048 Bytes, I
I Performed In 8 Blocks I
I Of 256 Bytes Each) I
L __ ________ ..J
yes
yes
Testing and Troubleshooting
3-9
r---------,
'" - -i
903040 SCM I
;' L __________
.J
r--------,
_
~
9020 Keyboard
I
;,'" L _________
..J
r--------l
-~ ~=~~r~~~o~~;~~
I
I Reg 5 Of Test Card
I
L ________
..J
Error
= P~Failed
Figure 3-4. Loader ROM Test Module Flowchart