Yamaha CX-1 Service Manual
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IMPORTANT NOTICE
This manual has
It has
be€n assumed that basic service
Products, are
WARNING: Failure
IMPORTANT:
provided
The data
engineering, and service depanmenb of YAMAHA arc continually striving to imprcve YAMAHA
Modifications
retrofit.
Should
WARNING:
IMPORTANT: Tum
provided
been
already
result in
perform
seruice required should
seruice representative.
The
tion, cenification or recognition of any
principle-agent
is believed to be accumte and applicable to the unit(s) indicated on
are, tbereforc, inevitable and specifications are subject to change
any
discrepancy appear to exist,
Static discharges can destroy expensive components.
may
wires connect to this buss).
power
for the use of authorized YAMAHA Retailers and their service
known
md
follow
to
personal
as specified. For these reasons, we advise all YAMAHA
presentation
have accumulated by
the unit OFF during disassembly md
to the unit,
procedures inherent
understood
relationship
by the uwrs, and
appropriate service and safety
injury, destruction of expensive components, and failure of the
perfomed
be
or sale of this mmual to any
of any form.
grounding yourself
by an authorized
please
coniact the distributor's Seruice Division.
industry,
to the
have
therefore
procedurcs
individual
applicable
Discharge
ground
to the
part
replacement. Recheck all
not
YAMAHA Retailer
or fim does not constitute authoriza-
technical capabilities,
and morc specifically YAMAHA
bcen restated.
when
without notice
any static electricity
buss in the unit
penonnel.
seruicing this
product
owners that any
or
the cover.
(heavy
work
before
or obligation !o
product
may
product
the appointed
or
establish a
The reseach,
products.
your
body
gauge
black
you apply
to
oo4ssl
li
3.05K-203
ffl
YAMAHA
YAMAHA CORPORATION
P.O.Box1 .Hamamatsu,Japan
Prinred in
Q
Japan
'll
q/W
cx-1
TO SERVICE
I
1. Critical
2. Leakage
o
o
o
Components
Components
be
must
originally
those
When service
that all
lrom supply
impedance
Meter
by 0.15pF.
Leakage
Be sure
oolarities.
replaced
Current
exposed
circuits.
current
to test
Informalion.
having special characteristics are marked and
installed.
has been completed, it is imperative to
parts
with
Measurement
conductive surfaces are
should be equivalenl lo
must not
leakage
for
WARNING:
in
The solder
and/or
California
other
or
used
plastic
Health and
reproductive
the
(where
PERSONNEL
having specificalions
(For
120V Models Only).
properly
1500
exceed 0.5mA.
with the AC
plug
equal to OUTLET UNDER
veri{y
insulated
ohm shunted
in both
WALL EqUIpMENT TESTER OR
TEST
@
-TNSLiLATTNG
TABLE
CHEMICAL CONTENT NOTICE!
production
of
applicable) components
Welfare Agency
harm.
product
this
(and
contains
may
possibly
other entities) to cause cancer
LEAD. In
also
contain traces
addition, other electrical/electronic
of
chemicals
AC
LEAKAGE
EQUIVALENT
found
by the
and/or birth defects
I
H
I
NOT
DO
ANY
FOR
Avoid
solder
lf
your
prolonged,
fumes
you
come
hands before
PLACE SOLDER,
REASON
ELECTRICAL/ELECTRONIC
WHATSOEVERI
unprotected contact between solder and
or expose eyes to solder/f
in contact with
handling
solder or components
food.
lux
vapor!
PLASTIC
OR
your
skin!
located inside
the enclosure of this
COMPONENTS
When
soldering,
IN YOUR
MOUTH
not inhale
do
product,
wash
GX-1
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cx-1
I SPECIFICATIONS
Sensitivity/l
Input
MC
Phono
MM
Phono
etc
CD
SensitivitY
lnput
MC
Phono
MM
Phono
CD etc
Maximum
MC
Phono
MM0.05%
Phono
Output
Maximum
Headphone
Level/lmPedance
Out
Rec
Out
Pre
Pre Out
THD
0.1%
Frequency
CD etc
Equatization
RIAA
MC/MM
Phono
Harmonic
Total
MC to
Phono
MM
Phono
CD etc
to
Signal
Phono
Phono
(Shorted)
CD
etc
AUX
Residual
Channel
Separation
Phono
(lnput
etc
CD
(lnput 5. 1 kC)
Input
Output
to
Noise
MC
MM
Noise
MM,
mPedance
(New IHF)
(1kHz)
Signal
THD
0.05"/o
THD
Voltage
Rated
Jack
RL=100O
ResPonse
ZOHz-2QkHz
Distortion
Rec
Rec
to
Out
Pre
Ratio
(50OPV InPut Shorted)
(5mV
(Shorted)
(lHF-A
MC
Shorted
terminated
(2OHz-Z0kHz 1% THD)
Outputilmpedance
(20H2-20kHz)
Deviation
(20H2-20kHz)
Out 3V
3V
Out
3V
(lHF-A
Network)
InPut Shorted)
Network)
-30d8)
(Vol.
1 kHz/1OkHz)
l kHz/1okHz)
100pV/220O,1ko
2.SmY/47ka
1 50mV/47kO
33pV
0.83mV
50mV
6mV
150mV
150mV/2.5kO
t47l,)
1 .5V
8V Weight
4.5V/68O
0 I 0.2d8
10.2/r0.2dB
0.003%
o.ooza"
0.002"k
90dB
v50ti
1 10dB
07dB
1
1.0pV
80dB/70d8
85dB/65d8
Supply
Power
U, C models
model
R
A, B models
model
G
Consumption
Power
Outlet
AC
Switched
U, C models
models
G, R
Switched x 1
A, B models
Dimensions(WxHxD)
'
Specifications
U ........U.5.A. Modet
........
C
Canadlan
A ........Australlan
AC1 1 0V-1 20V 1220V
x 3
subject to
Model
Model
. DIMENSIONS
AC120V,60Hz
-24OV,
AC240V, 50Hz
AC230V, 50Hz
200W
1.7A
200W max. Total
438x86x405mm
(17-1t4"
change without notice.
x 3-3/8" x 15-15/16")
8.8k9
B ........ British Model
......., European Model
G
R,,....,.General Model
60/50H2
35W
max. Total
max. Total
max.
200W
(l9lbs
6oz)
Control
Tone
BASS
TREBLE
Filler Characteristics
Subsonic
Audio
Tracking
Gain
Characteristics
boost/cut
turnover
boost/cut
turnover
(1
Muting
5Hz)
Error
frequencY
frequencY
(0--60d8)
t1odB
+10d8
-1
(20H2)
350H2
(20kHz)
3.5kHz
8dB/oct
-20d8
2dB
Units : mm
(inch)
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Cover.
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VIEW
the ord€r
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screws ( O
4
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b. Removs
c. Remove
CAUTION
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screws
screws
2
FOR
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Front
Removal
3.
a. Removo
b.Removs4screws(@).
Make
rEolacament.
a How
io"ition
tUt,tEn
switch
ol
6
to
sure
Perform
petlorm
to
the s"l"ctot
position ana
automaticalty
turns
knobs.
Precautlons
ol InPut
initial
Initlat
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ON the
turn
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Selsclor
setting
gettlng
mid-point
at the
POWER
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until
F€Placement
Switch
input selector
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betweEn
switch.
at the'CD"
stops
switch
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Then the
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position-and
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x 22)
08)
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