12 Format disc 0
13 Format disc
14 PLL test
HP 9121/22 D/S
75s
The disc is re-initialized with a 011
data pattern.
75s
Same as above but on drive 1.
3s
The free-running frequency of the PLL
is checked.
The disc in drive 0 is
used for the test, and its format is
destroyed by the testing procedure.
5- 5