Heathkit IG-4505 - Page 44

Page 44
HEATHKIT?®
Perform
this
test
if
you
have
a
VOLTS
OUT
signal,
but
TIME
OUT
signal.
START
TEST #2
no
Set the TIME OUT switch (SW1) to the 1 mS
position.
YES
Is
there
a
1000
Hz
(1
mS)
signal
at
the
base
(B)
of
04?
|
NO
Perform
the
steps
in
TEST
#1.
YES
Is
there
a
1000
Hz
signal
at
the
collector
(C)
of
O5?
NO
Check
Q4,
05,
and
the
associated
circuitry.
YES
Is
there
a
1000
Hz
signal
at
the
connector
end
of
the
Check
for
a
short
circuit
at
both
ends
of
the
output
.
NO
cable.
Check
R25, R26, R29,
and
the
associated
terminated
output
cable?
~
circuitry.
YES
The TIME OUT function of your Calibrator appears
to be operating properly.