Philips PM 5191 Operating Manual page 78

E 3-24
TEST 4: Strobe test
The display indicates
STRO x
where x is a number from 6 to 15. This number changes continuously and slowly. By pressing the key
"MODULATION
OFF" at the right moment the required strobe line will be selected. The display shows
then e. g.:
STRO @8 — 1
which means that the output lines of the shift registers controlled by strobe line 8 show a specific bit-
pattern. ff MODULATION OFF was pressed once for a short moment all output fines of the shift
registers change their state. Now the display shows:
STRO 08 — @
Each time the MODULATION
OFF-key is pressed for a short moment, the states of these output lines
will be inverted.
If MODULATION OFF
is pressed for longer than about 1 second, this subprogram
will be left and the display shows again:
STRO x
ASCII 'A' indication 41 H
ASCII '3' indication 33 H
etc.
The device address of the PM 5191 is fixed to 20.
With the key MODULATION OFF the program returns to the test menu.