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4.
OPERATION
After a period
of
use, a battery normally requires ap-
proximately one hour of rapid charging.
The
radio should
be turned off while attached
to
a
battery being recharged.
Place
the charger
in
operation
as
follows:
a.
Make sure
that the line
voltage selector (fuse
F1
and
receptacle)
is
placed
in
the proper position to
accept
either 115Vac,
220Vac,
or
240Vac as
applicable.
If
the de-
sired
Vac
is not
displayed
in
the
receptacle's window,
refer to the exploded
view
at the
back
of
this manual, and:
(1)
Remove
the
fuse drawer
(item
22)
from the
ac
connector
(item 2).
(2) Remove the voltage selector
insert (item 21) from the
fuse
drawer.
(3)
Replace
the
voltage selector
insert
in
the fuse drawer
with the
desired Vac showing through the fuse drawer's
slotted window.
(4)
Replace
the fuse drawer
in
the
ac
connector.
b.
Connect
the
ac
cord
(jack J1 end)
to
the battery
charger.
c.
Connect
the
ac
cord (plug
P1
end)
to the proper
ac
re-
ceptacle.
The
battery
charger
performs
a
self test, which
is
evidenced
first
by
all
four
LEDs
in
the display simultane-
ously
turning on and
off,
and then by
each
of the four
LEDs
in
sequence
(yellow, orange,
red,
green)
turning on
and
off.
d.
Insert the battery, with or without the radio
attached,
into
the
charger compartment and seat
it
firmly to
assure
that proper contact
has been made. Again, each
of the
LEDs
turns on and
off,
then the red
Charging LED
turns
on to
indicate that the battery is being rapid charged.
NOTE
(1)
If
the yellow
Stand-By LED
illuminates instead of the
red
LED,
the battery is either too hot or too cold
to
be rapid-charged.
Refer
to
"Circuit Description"
for
details.
(2)
If
the orange
LED
flashes, a
problem
exists
with the
battery.
TRY
RESEATING THE BATTERY.
Refer
to
"Circuit Description"
for
details.
e.
Allow approximately one
hour for batteries to
charge.
NOTE
When a rapid-charge
battery
reaches
full
charge,
the
red
Charging LED
turns off and the green
Complete
LED
turns on.
5.
INCASE
OF TROUBLE
Before requesting service, refer
to
the following
table
for
possible remedies.
WARNING
USE ONLY MOTOROLA
NICKEL-CADMIUM (NI-CD)
BATTERIES
WITH
THIS
CHARGER.
Condition
(Refer to Figure
1
Remedy
for
LED location)
Red
Charging LED
does notlight
¢
Check
battery and
charger
when battery
is inserted
in
pocket
contacts
for dirt,
grease,
or
foreign material.
Wipe
with
a
soft cloth.
Orange
LED
flashes.
Try reseating
battery.
If
a light-capacity
battery with
aradio
attached
is being
charged and the radiois
turned on,
turn the radio
off, then
reseat
battery.
Check
battery and
charger
contacts
for dirt,
grease,
or foreign material.
Wipe
with
a
soft cloth.
Try another
battery.
If
problem
goes
away, the problem is
with the first battery.
Yellow
Stand-By LED
lights
e
Battery
is
either too
hot
or
too cold
to
be
rapid
charged.
No
LEDs
light
Make sure charger is plugged
in.
Check
to
see
if
charger
has a
fuse.
Check
to
see
if
fuse
is blown.
GREEN
YELLOW
RED
ORANGE
Figure
1.
Front
Panel
LED
Locations
6.
CIRCUIT DESCRIPTION
(Refer
to the
schematic diagram)
a.
General
The
mechanical placement
of
fuse F and
its
recepta-
cle select
the primary windings of transformer
T1
for the
115Vac,
220Vac,
or
240Vac
input
source. Operating B
+
is
developed
from
a step-down
transformer (T1), with
a
fused primary and
a fused
secondary, driving a conven-
tional
full-wave bridge
rectifier
(CR1-CR4).
B+
is
applied
to the
display
board
LEDs,
to
charging circuit transistors
2
4.
OPERATION
After a period
of
use, a battery normally requires ap-
proximately one hour of rapid charging.
The
radio should
be turned off while attached
to
a
battery being recharged.
Place
the charger
in
operation
as
follows:
a.
Make sure
that the line
voltage selector (fuse
F1
and
receptacle)
is
placed
in
the proper position to
accept
either 115Vac,
220Vac,
or
240Vac as
applicable.
If
the de-
sired
Vac
is not
displayed
in
the
receptacle's window,
refer to the exploded
view
at the
back
of
this manual, and:
(1)
Remove
the
fuse drawer
(item
22)
from the
ac
connector
(item 2).
(2) Remove the voltage selector
insert (item 21) from the
fuse
drawer.
(3)
Replace
the
voltage selector
insert
in
the fuse drawer
with the
desired Vac showing through the fuse drawer's
slotted window.
(4)
Replace
the fuse drawer
in
the
ac
connector.
b.
Connect
the
ac
cord
(jack J1 end)
to
the battery
charger.
c.
Connect
the
ac
cord (plug
P1
end)
to the proper
ac
re-
ceptacle.
The
battery
charger
performs
a
self test, which
is
evidenced
first
by
all
four
LEDs
in
the display simultane-
ously
turning on and
off,
and then by
each
of the four
LEDs
in
sequence
(yellow, orange,
red,
green)
turning on
and
off.
d.
Insert the battery, with or without the radio
attached,
into
the
charger compartment and seat
it
firmly to
assure
that proper contact
has been made. Again, each
of the
LEDs
turns on and
off,
then the red
Charging LED
turns
on to
indicate that the battery is being rapid charged.
NOTE
(1)
If
the yellow
Stand-By LED
illuminates instead of the
red
LED,
the battery is either too hot or too cold
to
be rapid-charged.
Refer
to
"Circuit Description"
for
details.
(2)
If
the orange
LED
flashes, a
problem
exists
with the
battery.
TRY
RESEATING THE BATTERY.
Refer
to
"Circuit Description"
for
details.
e.
Allow approximately one
hour for batteries to
charge.
NOTE
When a rapid-charge
battery
reaches
full
charge,
the
red
Charging LED
turns off and the green
Complete
LED
turns on.
5.
INCASE
OF TROUBLE
Before requesting service, refer
to
the following
table
for
possible remedies.
WARNING
USE ONLY MOTOROLA
NICKEL-CADMIUM (NI-CD)
BATTERIES
WITH
THIS
CHARGER.
Condition
(Refer to Figure
1
Remedy
for
LED location)
Red
Charging LED
does notlight
¢
Check
battery and
charger
when battery
is inserted
in
pocket
contacts
for dirt,
grease,
or
foreign material.
Wipe
with
a
soft cloth.
Orange
LED
flashes.
Try reseating
battery.
If
a light-capacity
battery with
aradio
attached
is being
charged and the radiois
turned on,
turn the radio
off, then
reseat
battery.
Check
battery and
charger
contacts
for dirt,
grease,
or foreign material.
Wipe
with
a
soft cloth.
Try another
battery.
If
problem
goes
away, the problem is
with the first battery.
Yellow
Stand-By LED
lights
e
Battery
is
either too
hot
or
too cold
to
be
rapid
charged.
No
LEDs
light
Make sure charger is plugged
in.
Check
to
see
if
charger
has a
fuse.
Check
to
see
if
fuse
is blown.
GREEN
YELLOW
RED
ORANGE
Figure
1.
Front
Panel
LED
Locations
6.
CIRCUIT DESCRIPTION
(Refer
to the
schematic diagram)
a.
General
The
mechanical placement
of
fuse F and
its
recepta-
cle select
the primary windings of transformer
T1
for the
115Vac,
220Vac,
or
240Vac
input
source. Operating B
+
is
developed
from
a step-down
transformer (T1), with
a
fused primary and
a fused
secondary, driving a conven-
tional
full-wave bridge
rectifier
(CR1-CR4).
B+
is
applied
to the
display
board
LEDs,
to
charging circuit transistors
2