Section
VIII
Service Information
8.1 In Case of Difficulty
A.
Instrument inoperative; Gate indicator does not flash
and
Frequency Display does not light.
1.
Push power connector firmly into rear panel connector.
2.
Verify that
AC
power
is
present at the outlet, and that the instrument power cord
is
good.
3.
Check
the
internai
fuse.
Refer
to
Section 8.2 for details.
B.
Counter does not read function generator frequency.
1.
Make
certain
the
CNTR INP button
is
released.
2.
On
the
1Hz
range
it
will
take at least
20
seconds for a frequency reading.
This
is
normal.
C.
There
is
excessive distortion
in
the
output signal, especially
on
the
lM
range.
1.
When
using
the
Output connec
tor
and a coaxial cable, connecta
50
ohm termination
to
the
other end.
2.
Reduce the output amplitude.
31