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Heathkit HA-14 - Product Warranty Information

Heathkit HA-14
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SYMPTOM
Tube
filaments
and
pilot
lamp
do
not
light,
POSSIBLE
CAUSE
Power
plug
or
sockets
incorrectly
wired,
2
Open
circuit
breaker
in
power
supply,
3,
Tube
filaments
and
pilot
lamp
wiring
in-
correct,
NOTE:
Tube
filaments
are
con-
nected
in
series,
If
one
opens,
neither
will
light,
.
No
bias
voltage
(~120)
to
relay,
2,
No
ground
between
pin
12
of
power
socket
and
exciter
in
keyed
position,
Antenna
relay
will
not
close
when
exciter
is
keyed,
1,
Wiring
error
on
Meter
switch,
2,
Wiring
error
on
SWR
coaxial
cable,
3,
Shielded
leads
shorted,
4,
Defective
diodes
D2
and/or
D3,
No
forward
or
reflected
power
reading
on
Linear
Amplifier
meter,
Output
will
not
peak
on
some
or
all
bands,
1,
Band
switch
in
wrong
position,
2,
80-40-20
meter
final
coil
incorrectly
mount-
ed
and
wired,
Tubular
capacitors
interchanged,
All
power
to
Linear
Amplifier
turns
off
in
mobile
operation,
.
Overdriving
from
exciter,
2,
The
microphone
level
setting
on
the
exciter
is
too
high,
3,
Defective
40
ampere
circuit
breaker
in
power
supply,
In
mobile
operation,
antenna
relay
keeps
dropping
out
on
voice
peaks,
The
microphone
level
setting
on
the
exciter
is
too
high,
2.
No
ALC
voltage
being
applied
back
to
the
exciter,
3.
Exciter
ALC
circuit
not
operating,
4,
Corroded
battery
connections
causing
a
high
resistance
connection,
Page
37

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