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lltlUtNllAlN
DR. JOHANNES
HElDENHAlN
GmbH
D-8225 Traunreut
.Tel. (08669)
31-O
SERVICE
MANUAL TNC 151/155
Pe.ae 28
Kundendienst
Se&ion
2.2.6
6.
The final
step
of
the
full
initialization
procedure
is
the
Other
interrupts
are
also
possible;
these
are
described
in
calibration
of
the
two
potentiometers
on the
front
panel
of
the
following
section.
the
Control.
These
met
be adjusted
to
give
the
display:
"OVERRIDE
POT ADJUST:
100
SP.
RW.
SPEED ADJUST:
100"
If
necessary,
the
caps
of
the
knobs
must
be removed,
the
securing
screws
slackened,
and
the
knobs
realigned
and
tightened
in
the
100% position.
7.
At
the
beginning
of
the
initialization
procedure,
inter-
ruptions
of
the
program
are
inhibited.
After
completion
of
the
initialization,
interrupts
are
enabled
to
permit
jumps,
at
any
time,
to
various
points
in
the
test
procedwze.
Once
the
interrupts
have
been
enabled,
the
test
program
can
be interrupted
by presSing
one
of
a number
of
keys.
The keys:
for
example,
cause
restarts
at
various
points
during
the
initialization
routine,
as
shown
in
figs.
8 and
9.
Q
System
re-boot
lzg
"EXTERNAL
UNIT
CONNBCTED
?"
@
"JUMP
OVER KEYBOARD
TEST ?"
q
"0,
1,
OR 2 PC-BOARD
?"
El
"OVERRIDE
POT ADJUST:
100
SP.
ROT.
SPEED ADJUST:
100"
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