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No.70257
Jun.2001
TF-HF40(J)/TF-HF40-NK(J)
SERVICE MANUAL
HANDS FREE KIT FOR MOBILE PHONES
COPYRIGHT C 2001 VICTOR COMPANY OF JAPAN. LTD
Type
Nominal impedance
Sensitivity
Max.input capability
Cord length
Mass
Moving coil
32 ohms
98 dB/1 mW
30 mW
1.2 m (3.94 ft) with 2.5mm triple-pole plug
19g (0.67 oz) without cord
30g (1.06 oz) with cord
Specifications
Design and specifications subject to change without notice.
Earphone section
Type
Directivity
Sensitivity
Accessory
Electrical condenser
Non-directional
-60 dB(0dB=1V/0.5Pa)
Plug adaptor for Nokia
(for NK model only)
Microphone section
TF-HF40(J)
TF-HF40-NK(J)
TF-HF40(J)/TF-HF40-NK(J)
The "Product Exchange System" is applicable to this product.
For limited spare parts, refer to the parts list.


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2 (No.70257)
J46773-001
J46772-001
J46727-001
J46726-001
J46771-008
J46738-001
Pad Urethan
Ear Pad
Ring
Cap
film
Sheet
Hologram
1
1
1
1
1
1
1
2
3
4
5
6
Item No.
Parts No.
Parts Name
Description
*Parts marked ( ) are safety parts. When replacing, be sure to use the specified one.
Q'ty
Disassembly
Using the earphone
Creating an original model (Plate replacement)
TF-HF40(J)/TF-HF40-NK(J)
Parts List
TF
-HF40
Creating
an
original
model(Plate
replacement)
Detaching
the
design
plates
Turn
the
ring
about
30
degrees
to
the
right
until
it
clicks.
Insert
the
ring,attaching
the
3
lines
marked
on
therear
of
the
ring
to
position
R
displayed
on
the
unit.
Insert
your
original
or
an
additional
design
plate
and
the
cap
in
the
proper
order
onto
the
unit,
attaching
the
raised
part
of
the
design
plate
and
cap
to
the
indented
part
of
the
headphone.
Make
sure
to
hook
your
fingernails
on
the
raised
parts
of
the
ring
Hook
your
fingernails
on
the
raised
parts
of
the
ring
as
shown
in
the
figure
above.
Turn
the
ring
about
30
degrees
to
the
left
to
detach
it.
Turn
the
unit
upside
down
as
shown
in
the
figure
to
detach
the
cap,
film
and
design
plate.
Be
careful
not
to
damage
your
fingernails.If
the
ring
is
too
hard
to
turn,use
something
else
other
than
your
fingernails
to
turn
it.
Ring
Ring
Ring
Rear
of
the
ring
Cap
Cap
Indented
part
Raised
part
Raised
part
Supplied
design
plate
(use
when
original
is
too
thin)
Original/additional
design
plate
Film
Design
plate
1
1
2
2
3
Inserting
original/additional
design
plates
If
your
original
plates
are
too
thin
to
fit
properly
in
the
unit,
place
supplied
design
plates
under
your
originals
to
secure
them
tightly.
Y
ou
can
do
wnload
a
v
a
ri
ety
of
g
raphic
plate
designs
from
our
W
o
rl
d
Wide
W
eb
ser
v
er
,and
pr
int
out
the
designs
y
ou
lik
e
.
(http://www
.jvc.com)
3
2
1
4
5
6
*Driver Unit
Ass'y
*Housing Ass'y
*Cord
For Mobile Phone / Cellular Phone with a
2.5mm triple-pole plug.
Hands Free Kits for Mobile Phones
Using the earphone
To the
2.5mm
earphone jack.
MICROPHONE
Mobile phone/Cellular phone
Ear Hook
Ear Hook
Push the Ear Hook
slightly.
Ear Pad
Right Ear
Place the Ear Hook
over your ear and
adjust the Ear Hook
position to fit your
ear.
VOICE MUTING BUTTON
VOICE MUTING BUTTON
For Mobile Phone / Cellular Phone with a
2.5mm triple-pole plug.
Hands Free Kits for Mobile Phones
Using the earphone
To the
2.5mm
earphone jack
or including Adapter.
including NOKIA 71xx/61xx/51xx Adapter
MICROPHONE
Mobile phone/Cellular phone
Ear Hook
Ear Hook
Push the Ear Hook
slightly.
Ear Pad
Right Ear
Place the Ear Hook
over your ear and
adjust the Ear Hook
position to fit your
ear.
TF-HF40(J)
TF-HF40-NK(J)
Note : These parts which was marked (*)
will not be able to supply as our
service parts.


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J46980-002
J46771-009
BT-51007-5
Adaptor
Film
Warranty infomation card
for NK model only
Pink
1
1
1
1
2
3
Item No.
Parts No.
Parts Name
Description
*Parts marked ( ) are safety parts. When replacing, be sure to use the specified one.
Q'ty
(No.70257) 3
*Sheet
*Blister cover
Packing Method
TF-HF40(J)/TF-HF40-NK(J)
*Tray
1
3
2
Parts List
Note : These parts which was marked (*) will not be able to supply as our service parts.


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(No.70257)
VICTOR COMPANY OF JAPAN, LIMITED
AV ACCESSORY DIVISION, YAMATO PLANT, 1644, SHIMOTSURUMA, YAMATO-SHI KANAGAWA-KEN, 242-8514, JAPAN
Printed in Japan
0104(V)
Wiring Diagram
TF-HF40(J)/TF-HF40-NK(J)
2.5mm triple-pole plug
Driver Unit
Mic Unit
470p
Mute SW