Mercury 1400 Instruction Manual
INSTRUCTION
MANUAL
MERCURY
ELECTRONICS
CORP.
manufacturers
of
quality
electronic
products
INTRODUCTION
The
Model
1400
is a valuable
service
aid
for
in-circuit
testing
of
all
types
of
capacitors,
from
the
smallest
ceramic
types
to
large
electrolytics.
The
1400
will
check
for
open
or
shorted
cap-
acitor
1s
without
the
necessity
of
removing
them
from
the
circuit.
Capacity
values
are
measured
in-circuit
on
all
popular
electrolytic
capacitors.
An
important
feature
of
the
electrolytic
test,
not
found
in
other
instruments
sold
even
at
much
higher
prices,
is
the
low
test
volt-
age
that
protects
the
low-voltage
electrolytics
used
in
transistor
radios.
Many
of
these
small
electrolytic
filters
are
rated
as
low
as 3 working
volts
D.C.
The
Mod
el
1400
tests
these
and
all
others
with
perfect
accuracy
with
no
ch
ance
of
damage.
SPECIFICATIONS
Shorts
Test
-
Effective
in-circuit
with
shunt
resistance
as
low
as
6
ohms.
Open
Test
-
Effective
on
all
capacitors
in-circuit
down
to
capa-
citors
as
small
as
7 mmfd.
Electrolytic
Test
-
Values
of
electrolytic
capacity
found
in-circuit
over
the
range
of
2 Mfd.
to
450
Mfd.
Indicator
-
EM84
ultra-modern
bar
indicator
tube.
Simple
instruc-
tions
printed
right
on
the
instrument
panel
for
accurate
interpreta-
tion
of
all
test
results.
Power
Supply -Line
isolated
with
special
low
voltage
for
elec-
trolytic
test.
Case
- Smart-
modern
styling
in
Mercury's
exclusive
metal
case
design.
Compartment
for
coaxial
cable
and
cheater
line
cord
ensures
convenient,
safe
storage.
1
3
DESCRIPTION
The
simplicity
of
the
Model 1400
Panel
is
indicative
of
the
ease
with which a
complete
in-circuit
test
of
all
the
capacitors
in
a radio or
TV
set
can
be
accomplished.
The knob
at
the
left
controls
the
functions
of
the
instrument,
with
steps
in proper
sequence
for normal
troubleshooting
procedure.
This
knob
also
turns on
the
instrument
power.
The
1400
panel
has
a power
indicator
jewel
in
the
lower
right.
The
large
center
dial
is
used
for reading
capacity
values
of
elec-
trolytics,
both in
or
out-of-circuit.
The
indicating
eye
is
at
the
upper
right.
Instructions
for prop,er
interpretation
of
eye
readings
are
printed
right on
the
panel,
just
above
the
eye
window.
This
saves
value
troubleshooting
time,
and
can
reduce
the
diagnosis
of a difficult
intermittent
condition
to
mere
seconds.
The
co-axial
cable
test
lead,
with fully
insulated
test
clips,
is
per-
manently
connected
to
the
instrument
and
stores
conveniently
in
the
compartment
below
the
chassis
along
with
the
cheater
line
cord.
Tests
for SHORTS, OPENS, and
ELECTROLYTIC
VALUES
can
be
made
either
in-circuit
or
out-of-circuit
without changing
test
leads
or
clips.
OPERATING INSTRUCTIONS
Preliminary
4.
1.
Always make
tests
on a
receiver
which is
disconnected
from
the
power
line.
2. '
Make
sure
capacitors
being
tested
are
fully
discharged
first.
Any
charge
on
capacitors
can
give
erroneous
test
results
and may
damage
the
Model 1400.
3.
Plug
the
Model 1400 into 117V. A.C.
power
line
and
rotate
left
hand knob to
the
position
marked SHORTS.
Power
jewel
will
glow and
eye
indicator
bars
will
glow.
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