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EY6406 - CORDLES DRILL&DRIVER
Service manual
Troubleshooting - Panasonic EY6406 Service Manual
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Also See for EY6406
:
Instruction manual
(12 pages)
,
Service manual
(11 pages)
,
Instruction manual
(11 pages)
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Troubleshooting
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Model
EY6406
•
EY6407
•
EY6431
TROUBLESHOOTING
GUIDE
(Refer to
WIRING
CONNECTION
DIAGRAM)
<
TROUBLE
Does
not operate.
Does
not
speed-
control or
does
not
brake.
<
CHECK
>
<CHECK BATTERY
PACK.>
If
no
less
than
12
V
DC
for
EY9106/EY91oe/EY9200
or
15.6V
DC
for
EY9230/EY9136
is
available
across
the
(+)
and
(-)
tern^inals,
the battery
pack
is
OK.
Note:
The
battery
pack
is
sold
separately
as
shown
In
REPLACEMENT PARTS
LIST.
The
battery
pack has
a
limited
life.
The
pack
should
be
replaced
if
after
being
charged
for
the rated
charging
time the
battery
voltage
is
less
than 12
V
DC/1 5.6V
DC
or
the
usable
time
is
extremely
short.
the battery
leaks.
Check
battery
for
leaks
and
terminals
for
corrosion.
The
motor
normally operates
with
its
white
(+) arKi
black
(-)
lead wires
connected
to
12
V DC
for
EY6406/EY6407
or
15.6V
DC
for
EY6431.
OK
<CHECK SWITCH
BLOCK.>
(See
WIRING
CONNECTION
DIAGRAM,)
With touching
(+)
terminal
of
Volt-Ohm
meter,
check
continuity
between
following terminals.
*
Inspection
of
the brake.
(a)
When
the switch
handle
is
not
depressed
:
-
There
should
be
OQ
between
®
-
(§)
.
without
depressing the
switch handle.
•
Inspection
of
the forward
/
reverse
selection switch.
(b)
When
the switch
handle
is
depressed
all
the
way
:
There
should be 0
Q
between
®
-
@
,
and between
@
-
©
;
when
the switch
lever
is
set
to
the
fonA/ard side.
*
There
should
be
00
between
®
-
,
and between
(§)
-
@
;
when
the switch
lever
is
set
to
the reverse
side.
OK
NO
<
REMEDY
>
Replace
battery
pack.
OK
<CHECK
TERMINAL
CONNECTIONS BETWEEN
MAIN
UNIT
AND
BATTERY
PACK.>
Check
for
proper
terminal contacts.
OK
NO
Repair
the
contacts.
NO
Repair
the motor.
NO
Contacts
in
the
switch
block
are
defective.
Replace
the
switch
&
FET
block.
<CHECK
FET
CIRCUIT BLOCK.>
Remove
the
FET
circuit
block
and check
the lead wire
terminals.
These
terminals
are
open
normally
when
there
is
an open
circuit
between
the
g;een
and
yellow
lead wires,
and between
the blue
and
yellow lead
wires.
1
NO
Repair
the
contacts,
OK
<CHECK SWITCH BLOCK
>
NO
Replace
the
switch
& FET
bk>ck.
-6-
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This manual is also suitable for:
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Ey6431
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