Tektronix MSO70000 Series Service Manual page 80

Troubleshooting (DPO7000 Series, MSO70000/C Series, DSA/DPO70000B/C Series)
Table 4-12: 039-0185-xx μATX POST codes (cont.)
Item no. Module
12 Detect & Initialize Math
Coprocessor
Reserved
HDD Check for Write
protection
Reserved
Reserved
POST error check
Reserved
Reserved
Security Check
Write CMOS
Pre-boot Enable
Initialize Option ROMs
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Boot Medium detection
Final Init
Special KBC patch
Boot Attempt
Boot
4–36
Displayed POST
code
7A
7B
7C
7D
7E
7F
80
81
82
83
84
85
86
87
88
89
8A
8B
8C
8D
8E
8F
90
91
92
93
94
95
96
FF
MSO70000/C, DSA70000B/C, DPO70000B/C, DPO7000, MSO5000, DPO5000 Series
Description
Initialize math coprocessor
HDD check out
Check POST error and display them and ask for user
intervention
Ask password security (optional)
Write all CMOS values back to RAM and clear screen
Enable parity checker
Enable NMI, enable cache before boot.
Initialize any option ROMs present from C8000h to EFFFFh.
NOTE.
When FSCAN option is enabled, ROMs initialize from
C8000h to F7FFFh.
Read and store boot partition head and
Final init for last micro details before boot
Set system speed for boot Setup NumLock status according to
Setup
Set low stack Boot via INT 19h.