Yamaha CBR12 Руководство пользователя - Страница 2
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Installation Examples
L!:,
CAUTION
•
Before
doing any instal lation or construction work, consult
with
your
Yamaha
dealer.
•
For optimum
safety.
the
installation
should
be
checked thoroughly at regular intervals. Some fittings may deteriorate
over
extended periods
of
time due to wear and/or corrosion
•
When
choosing
the
installation
location
.
suspension wire and mounting hardware
,
make sure
all
are strong enough to
support the weight of the
speaker
•
Make sure to take measures to prevent the
speaker
from fall ing down in the event of a instal lat
ion fai
lure.
•
When installing
the
safety wire to the wall,
install
it
higher
than the
wire's
attachment
point
on
the speaker,
with
as
little
slack as possible. If the w ire is too long
,
and
the
speaker
happens to fall,
the wire
may snap as a
result
of
too much strain.
Yamaha
cannot
be held responsib
le
for damage or injury caused by
insufficient
strength of the
support
structu
re
or improper installation
Installation using separately sold Yamaha speaker
brackets
Attach the
bracket to
two screw holes at the bottom of the
unit
using commercially available screws
(M8 x
16
mm)
or
eye bolts (M8 x 15 mm). For details
on
installing the
bracket,
refer to the corresponding
manual.
I
Using the 8WS251-300 or 8WS251-400 wall mounting bracket
Maximum tilt
angle
The tilt
ang le
depends
on
the position re lat
ion
between the
speaker
and the wall. The
maximum
downward
tilt
ang le is shown
in
the
following
chart.
Maximum
tilt
angle
BWS251 -300
BWS251-400
CBR15
8'
17.5'
CBR12
11'
23'
CBR10
20'
35'
I
Using the 8CS251 ceiling bracket
0
I
Using the 88S251 baton bracket
L!:,CAUTION
In order to prevent the
unit
from falling down
,
attach the safety
wi
re as shown in the
illustration.
No sou nd
.
Howling
sound
is produced
(feedback).
The am plifier
shuts down.
Troubleshooting
The cable is not connected
properly.
•
Connect
the cab
le
all
the
way in so that
it
is firmly
in
place.
•
If
the
speakON connector
is used, connect to "1+"
and "1-" and turn the
plug
to be
locked.
A microphone
is
directed toward the Aim the speaker away from the area where the
speaker.
microphone
picks
up sound.
The sound is
amplified
too much.
The total impedance of the
speakers is less
than
the minimum
load
impedan
ce of the amplifier.
Example:
More than two speakers
(eight ohms) are
connected
to a
power ampl
ifier,
the
load
impedance
of which is
six
ohms.
Lower the volume of input device and
locate
the
microphone
more closely to the
sou
nd source
.
Check
the minimum load impedance of the
power
amplifier,
and
lower
the
number
of speakers
connected
in parallel not to be less
than
the
impedance
.
High
freq
uency
The protection ci rcuit is operating
in
Refer to "Protection
circuit"
in
the
NOTICE.
range is
the
HF
unit.
atten uated.
If any spec ific problem should
persist,
however. please contact your Yamaha
dealer.
Pullback point (only for CBR15 and CBR12)
•
When the unit is
sh
ipped from the factory, a seal is
stuck on the
pullback
point (screw hole). Make sure to
peel
off the
seal
when using the pu
llback
point.
•
The
CBR
10 does
not
have a pullbac
k point.
Upper rear
of
the unit
Pullback point
(M8
screw
hole)
!Installation using eye bolts
Securing
the
screws and eye
bolts
•
Insert the screw or eye bolt through the
washer to attach them.
Attach commercial ly-avai lable eye bolts (M8 x 15
mm)
to the sc
rew
holes
located at
the bottom (two
locations) and
on the upper
rear
(one
location,
only for CBR15
and
CBR12).
Keep in mind
that
you
will
need two points
at
the bottom to suspend the unit.
L!';CAUTION
Make
sure to
use eye
bolts accord ing
to
the standards and safety regula tions
in
your
area
I
NOTICE
The
strength of an eye bolt
d
iffers
depend ing
on the
suspension ang
le.
Make sure
to use eye bolts within
a range
of
0 to 45
degrees
from a right angle (as shown).
Corre<:l:
W ithin
45"
from
a right angle
oo
· ·
n
· · · · · · · · · · · ·
f
ri?·
~
5°
uu
Incorrect: Do
not suspend the eye bolts as shown in
the
illustrations
below.
Only one suspension point
More than
45"
from
a
right angle
General Specifications
~
The contents of this manual ap ply to
the
latest spec ifications as
of
the
printing
date.
Since Yamaha makes
continuous improvements to the product, this
manual
may
not
apply to the specifications
of
your particular
product. To
obtain
the latest manual, access the Yamaha website then
download
the
manual
file.
Since
specifications,
equipment
or separatel
y
sold
accessories
may
not
be
the
same
in every
locale, please
check with
your Yamaha
dealer.