Yamaha CP-20 Owner's manual

Yamaha CP-20 Owner's manual
AAC)
electronic piano operating manual
O YAMAHA
table of contents
2 introduction
features
CP-20 specifications
3 setup
4 electronic connections
Voltage Selector
For The British Standard Model
AC Power
Output Jack
Headphone Output Jack
Pedal Jack
5 controls and switches
AC Power Switch & Pilot
Volume
Balance
Bass & Treble Tone Controls
Piano/Harpsichord Switches
Tremolo Switch,
Speed & Intensity Controls
Decay Control & Sustain Pedal
Pitch Control
6 amplifier/speaker systems
travel case
7 PM-170 general specifications
PM-170 input & output specifications
8 A4115H amplifier controls & jacks
A4115H amplifier specifications
A4115H speaker specifications
introduction
features
CP-20 specifications
You have just joined the large and
growing family of satisfied users of
Yamaha products. You have chosen
wisely when you picked Mode! CP-20
as your electronic piano. Years of de-
pendable service await you.
Please read this operating manual
carefully before connecting the CP-20.
The few minutes spent with this manual
will help you understand its operation
and high performance. You will also
learn how to connect the electronic
piano properly and how to really get
the most out of all the features Yamaha
has incorporated into this electronic
piano.
If you need any special help or service,
see your Yamaha dealer. He knows what
to do and will be happy to help you.
You've made a good choice. We are
confident you'll be satisfied with the
performance and versatility of the CP-20.
SCALE RANGE
For the musician on tour, the CP-20
Electronic Piano combines the qualities
of touch, expression and sound variety in
a very portable, rugged package.
If you're a studio musician, the CP-20
gives you the ability to shift from one
color sound to another — easily and
quickly — on the same keyboard, a key-
board that feels very similar to an acous-
tic piano.
If you're a composer, the CP-20's
wide variety of sounds can help you over-
come that “one-color” tired-out sound
you may now be working with. The
piano's flat top is just right for scoring.
In fact, for any keyboard musician, the
CP-20's unique combination of sound
and features make this a very versatile
instrument.
The CP-20 is velocity sensitive, just
like a traditional piano. This means that
when you strike the keys harder, it gets
louder (continuous loudness variation,
not a stepped change}, yet the CP-20 has
no strings or rods to get out of tune, no
complicated action to stick or break. The
CP-20 is an all electronic piano; the only
moving parts in the keyboard are the keys
and the reliable leaf switches they
activate.
Yamaha worked closely with top
performing artists during the combo key-
boards” development. Their many valua-
ble suggestions helped perfect the touch,
the sound, the features — in fact, the
whole concept — of the Yamaha Electron-
ic Piano. Thus, the CP-20 is an instrument
developed for you, the musician and
artist. When you play the Yamaha CP-20
Electronic Piano, feel its responsiveness,
and hear its repertoire of sounds, you will
understand why Yamaha, with over nine
decades of Keyboard instrument experi-
ence, is the leader in contemporary
keyboards.
MC 1
1261.63) (440.00)
Keyboard: 61 keys (F, ~ f3)
Controls: PITCH; DECAY; TREMOLO;
Four PIANO/HARPSICHORD
SWITCHES to alter the sound;
BALANCE; BASS and TREBLE
Tone Controls; and VOLUME.
Power Requirements:
120V 0.3A {Canadian model},
20W ( other models)
Jack Panel:
Foot Switch Jack: SUSTAIN
Output Jacks: QUTPUT; HEAD-
PHONES
Dimensions:
Net Weight: 40.5Kg (89.3Ibs.)
A -1,080mm (42-1/2")
В - 166.5тгт (6-1/2")
C -571mm (22-1/2"")
A
A - 155mm (6-1/8”) U
er
wr
——
B - 571mm (22-1/2") —
C-1,080mm (42-1/2”)
D -738mm (29)
Height to Keyboard - 733,7mm (28-7/8”)
Total Height - 790mm{31-1/8"")
IT CA
ER ee HL ee
{43.66)
Ce pe lee pis
ita 7 396.9
men
As
(27.50)
PIANO
Cs
(4186.01)
(Frequency in Hz)
setup
l, Remove the four legs from the
storage compartment and attach them
with screws A on the lower Tour cornars
af the unit
à. When standing the unit upright,
Balance it by adjusting balancing scrow
В,
i a 9 m 9 т To ин "ra LA
7 EEE E rames
(" Ч = CE oh я ВЕ Ио Y
electronic connections
CAUTION
TO PREVENT ELECTRIC SHOCK. DI OT REMOVE COVER
NE DSER-SERYICENSLL PARTS INQ UI
REDCAR STAYSCING TO QUAN LED 54 RYICE PERSOMMEL
PRONES SUSTAIN BUTPUT
FOOT SW
Voltage Selector
Before plugging in the power cord,
make sure the VOLTAGE SELECTOR
on the side panel is properly set for
your locality. (U.S. and Canadian
models are preset and thus don't have
this feature.)
AC Power
Connect the female end of the AC
power cable to the three prong AC jack
on the CP-20's right side.
We recommend use of the self-
powered Yamaha A4115H speaker
system, due to ¡ts wide, flat frequency
response. However, the CP-20 may be
used with almost any speaker/amplifier
system.
When using the CP-20 with a stand-
ard guitar amplifier, it's a good idea to
plug the AC cables of both the CP-20
and the guitar amplifier into the same
AC outlet box or the same AC plug
strip. By connecting the AC cables of
both units to the same AC outlet and
then connecting the CP-20's output to
the guitar amp's input with a shielded
cable (see following section), you insure
that the chassis of both devices will be
at the same ground potential, avoiding
any possible shock hazard. (Not appli-
cable for the model with the 2P-plug.)
J
eee
Output Jack
OUTPUT jack is a high impedance,
low line level, standard tip/sleeve phone
jack. {Low line level is nominal —20dB
or an average of 77.5 millivolts output).
Use any high quality phone-to-phone
patch cable to connect the CP-20 to a
standard guitar amplifier, a high im-
pedance mixer such as Yamaha's
PM-170 or directly to an amplifier/
speaker system combination such as
the Yamaha A4115H*.
Headphone Output Jack
This stereo phone jack is for connec-
tion of any stereo headphones of 8-ohm
or higher impedance. It is actually a mono
output with identical right and left
signals. The headphone volume is con-
trolled by the Volume control. This
jack supplies enough drive for head-
phone monitoring in the loudest envir-
onment. The signal fed to the OUTPUT
jack is not cut out even if the PHONES
jack is plugged in.
Pedal Jack
Plug the supplied SUSTAIN foot
pedal into the SUSTAIN jack. Even if
a SUSTAIN foot pedal is not plugged in,
the keys will sustain normally when you
hold them down.
y
elem A Y
*Set the INPUT LEVEL switch on the
PM-170 or the A4115H to the “—200Bm”
position (for nominal —20dB sensitivity).
controls and switches
TREMDLE
|
FITCH SPEED INTENSITY
©
à `
DECAY
\ 4
+
© TRE MONO Pang || Pag
‘ 7 ` ` 1 =
TONE
BALANCE BASS
o
7
MAND HE
=
©
HARPSI-
CHORD 11
TREBLE
rf
©
`
POWER
® ©
VOLUME
©
AC Power Switch and Pilot
Push the switch once to turn the
CP-20 “on”, and again to turn power
“off”. The Pilot lamp is illuminated
when the AC power is “on”.
Volume
The VOLUME control sets the over-
all level in Output and Headphone
Output jacks.
Balance
The BALANCE control, continu-
ously adjusts the relative level of PIANO
1 and PIANO 2 compared to HARPSI-
CHORD 1 and HARPSICHORD 2.
Bass and Treble Tone Controls
The BASS and TREBLE controls
both affect the entire keyboard,
changing the sound in Qutput and
Headphone Output jacks. Centering the
controls (12 o'clock) provides “flat”
frequency response. Experiment with
the TONE controls to learn how they
¿ can alter the CP-20’s sound.
Piano/Harpsichord Switches
OUTPUT carries the sounds created
by the four PIANO/HARPSICHORD
switches labeled above them,
The sound created by ¡ts PIANO 1
switch 1s different from the sound
created by its PIANO 2 switch. The
same is true for the HARPSICHORD
1 and 2 switches. Thus, you can enjoy
varied sound colors by selecting differ-
ent combinations of the four PIANO/
HARPSICHORD switches.
Tremolo Switch, Speed and
Intensity Controls
The Tremolo controls further en-
hance the CP-20's available sounds.
Tremolo automatically and smoothly
varies the output volume up and down.
The TREMOLO rocker switch starts and
stops the effect.
The TREMOLO INTENSITY control
sets the depth of the tremolo effect (the
modulation percentage). Lower settings
yield a more shallow tremolo effect, and
higher settings yield a more intense
tremolo effect. The TREMOLO SPEED
control varies the rate of the TREM-
OLO effect (the modulation frequency).
Higher settings of the SPEED control
cause the volume to vary more rapidly;
lower settings cause the volume to
vary more siowly,
Decay Control and Sustain Pedal
The keyboard notes “sustain”” when
you hold down the keys or when you
depress the supplied SUSTAIN foot
pedal, just like a standard acoustic
piano. In other words, holding down
the sustain foot pedal sustains a note
just like holding down one of the keys.
The maximum sustain time is controlled
from a very short staccato to a very long
sustain by the DECAY control.
Pitch Control
The PITCH control varies the pitch
over a wide range. The PITCH control
tunes the entire keyboard. Thus you can
tune to match the instruments with you.
amplifier/speaker systems
ASIAN aio ada ie
EAF- FAZ dat fo Dire) mia es
The sound of the CP-20 wall depend
ta a large degree an tha amalifior ard
Speaker system. 11 you use several
Keyboard, vou may also with to use a
key boro mixor, In any cass, Its a dond
idea to choose these Items carefully.
If vou have & mil il keyboard вЫ,
We recommend the Yamaha PR-170,
a six-input stereo output mixer with VU
mateért and BASS and THEBLE équall
ZätlôN on ever input, This mixer can
than foed any amplifinr/Epaaker system
Alternately, use a celf-powered mixer
such at the Yamaha EM-160, The
CP-20's output can be fed to the mixer
input, and the output can be connected
diroctly to à spoakar сумо such ns
Yamaha S4115H%.
For amplified speaker sytem, we
recommend the Yamaha AST1EH, a
self:powered, two way speaker EE
WU à very natural, accurata saura arc
a wide, smooth dispersion pattern. The
Ad 116H can ba driver directly from the
CP-20) 5 output, or from the output of à
PM-170 or similar mixer, In the studio,
the ва San be takon cleroci drop tha
CP-20, or from a microphone placed
naar thio A4116H. With ihit sotup,
there should be little or no audible
difference whether the pando i
“direct” or mike, On the stage, tha
AL 1 15H high sensitivity and high
Power output maaan (hat You can fave
high volume levels tras of audible
distortion
Ino A 1163 controls are simple da
opératé. Ii you ar using pest one
EA 1154, conmnoct a phionota-phana
patch cable between the CP-205 CLIE-
FUT and the A4T116H% INPUT jack,
If vou wish to use iva A4116H'S,
one may be fed by the CP-203 OUT-
FUT
I'hen, connect a phone-to-phone
cable from the unused input jack of the
A4115A beng led by the CP-20 to an
input pack on thé next A4115H
aut the 44115H4 INFUT LEVEL
switch to the "—20dBm" position,
and set [ta INPUT VOLUME as required,
The FF. LEVEL control sats the
volume level of the high frequency horn
in relation to the low Fre ADC
СРО
TE
pol |
| 6 eso Je on |
Ad1 16 contrál panal
|
IO 989/79 #1
AS 1 16H control pari
Conmectóno Mars CP-20 io fear Ad T TSH amad hed HA spires.
travel cose
О вает, не СРО в compat
вазу to carry and suitable for light duty
traveling, such ad in a station wagon or
van, For heavy cartage (commercial
Trucking or ali freight os Examples), wa
recommend that you use an additional
travel case,
PM-170 general specifications
Number of inputs: 6 Input Channels,
1 Auxiliary Stereo Input.
Input Channel Controls: VOLUME,
INPUT LEVEL SWITCH, HIGH-
PASS FILTER, LOW & HIGH EQ,
PAN POT.
Number of Outputs: 2 PROGRAM
OUT (L, R), 1 PHONES.
Frequency Response: +0.5dB (50Hz +
15K Hz).
Total Harmonic Distortion: Less than
0.1% +20dB (7.8V) (30Hz ~ 25KHz).
input specifications
Hum and Noise (20Hz ~ 20KHz):
—118dBm Equivalent Input Noise
(150-ohm termination)
Crosstalk: —60dB (at 1KHz adjacent
inputs).
Equalization: +15dB (LOW, HIGH).
—66dB (0.388mV ) output noise
(70dB signal-to-noise) (Master
Volume & one Input Volume at
n
ominal level).
Maximum Voltage Gain: PGM 66dB,
AUX IN 36dB.
Maximum Input Level: +9dB (2.2V)
(Input Level Switch at —20d8),
—21dB (69mV) (Input Level Switch
at —50dB).
Maximum Output Level: +24dB
(12.3V) (at less than 0.1% T.H.D.).
High-Pass Filter: 12dB per octave roll-
off below 40Hz or 80Hz.
Power Consumption: AC, 50/60Hz,
15W.
Finish: Semi-gloss
black.
Dimensions (WxHxD): 48x18.2x25.3cm
(18-7/8x7-1/8x
107).
Net Weight: 8Kg (17.6lbs.).
Model | Connection Level Impedance Sensitivity Input Level Connector**
Witch | Actual Nominal Source (at Max. Gain) Nominal Max. before Clip | in Console
INPUT —50dB | 20KQ (15002 -— 6009 Mics & Lines —62dB (0.6mV) —50dB (2.5mV) —20dB ( 78mV)
(1-6) —40dB | 30K 8009 — 10Ka Mics % Lines —52dB ( 2mV) —40dB (7.8mv) —10dB (250mV) | Phone Jack
PM-170 —20dB | 35K2 —32dB ( 20mV) —20dB ( У8т\} +10dB { 2.5V)
AUX IN (L,R) — 30K 5K Lines —32dB ( 20mV) —20dB ( 78mv) — Phone Jack
output specifications
Model Connection Level Impedance Power Output Level Connector**
witc Actual Nominal Load Nominal Max. befare Clip in Console
+4d8 5 +4dB ( 1.23V) +24dB ( 12.3V)
РСМ А (L, R .
PM.170 (LR) —20dB 1000 6009 —20dB ( 78mv) 0dB (775mV) Phone Jack
PGMB (L, R) — 52 600 +4dB { 1.23V) +24dB { 12.3V) Phone Jack
HEADPHONES — 4.70 80 —10dB (250mV) +4dB { 1.23V) Stereo Phone Jack
*This is the level required to produce an output of +4dB (1.23V).
**All XLR connections are balanced and transformer-isolated. Phone jacks are unbalanced.
In above specifications, when dB represents a specific voltage, 0dB is referenced to 0.775V.
Freguency Response
20dB |
INPUT TERMINAL
OUTPUT TERMINAL
DUMMY LOAD
CUTPUT LEVEL
CH 14 LEYEL SW
PGMOUT A
600 2
+4dB
+15
RELATIVE LEVEL {dB}
+ l
= n =
|
a
15
20 100 1
FREQUENCY {Hz}
High-Pass Filter
Frequency Response
RELATIVE LEVEL {dB}
INPUT TERMINAL
CUMMY LOAD 600 Y
OUTPUT TERMINAL - PGM OUT А
CH 11 LEVEL SW —50dBE |
FREQUENCY (Hz)
Total Harmonic Distortion
TOTAL HARMONIC DISTORTION ([ %
+20 +
QUTPUT LEVEL (dB 1
+10
A4115H amplifier controls & jacks
A4115H amplifier specifications
A4115H speaker specifications
RESPONSE [d8)
Input Jacks: Two {parallel} standard tip-
sleeve phone jack which accept
unbalanced, line level sources.
Input Level Control: An input attenu-
ator controls the volume level of
the amplifier.
Input Level Switch: A slide switch
selects —23dBm or OdBm nominal
input level: for compatibility with
low or high level lines.
H.F. Level Control: An “L-Pad’ attenu-
ator {for constant impedance) adjusts
the volume ievel of the high-
frequency driver.
Output Power: 100 Watts continuous
average sine wave power into an
8-ohm load at 0.1% T.H.D.
Frequency Response: 10Hz to 30kHz
+0, -1dB with the INPUT LEVEL
switch in the “OdBm” position;
40Hz to 50kHz +0, -3dB with the
INPUT LEVEL SWITCH in the
“—20dBm” position.
Power Bandwidth: 20Hz to 20kHz
(at 100 watts into an 8-ohm load
at 0.1% T.H.D.).
Total Harmonic Distortion: Less than
0.01% at 80 watts into 8 ohms.
Damping Factor: 90 from 20Hz to
3kHz.
Hum and Noise: —73dB (0.17mV)t
Slew Rate: 25 volts per microsecond.
Input Sensitivity (input level for 100-
watts into an 8-ohm load): OdB (0.775
volts) with the INPUT LEVEL switch
set at the “OdBm” position; -—20dB
(77.5mV} with the INPUT LEVEL
switch set at the “-20dBm” position.
Input Impedance: 8k-ohms with the
INPUT LEVEL CONTROL at the
maximum clockwise position.
System Impedance: 8-ohms nominal,
7-ohms minimum.
Sensitivity: 101dB SPL at 1 meter with
1 watt input {DIN and JIS standard)”;
52dB SPL at 30 feet, 1 milliwatt
input (ELA standard).
Frequency Response: 70Hz to 15kHz,
+6dB (referred to 101dB SPL).
Dispersion: 70-degrees horizontal by
40-degrees vertical (angles between
6dB down points at 1kHz).
Crossover Transition Freguency and
Siope: 2kHz at 12dB/octave
Enclosure Type: Combination—
front-loaded horn/ducted-port bass
reflex, with separate high frequency
horn/compression driver.
Finish: Black leatherette with metal
corner caps and black (removable)
grille.
Dimensions:
Height: 908mm {35-3/4"")
Width: 610mm (24)
Depth: 452mm (17-3/4")
Weight: 58Kg (127.91bs.)
Driver Nominal Cone | Voice Coil Nominal Continuous Pink: Peak Rated Power Magnet Flux
{Loudspeaker} | Model Diameter Diameter Impédance | Sensitivity *# | Noise Power Rating Power Bandwidth Weight Density
Woofer JA3803 | 157 (38cm) 2.6 16.6em! 8 ohms 99dB 120 Watrs 240 Waits | 20Hz2-20kH2 6.0Kg (13.21bs.) 12 500 Gauss
Horn/Driver JA 4201 1.6" (4.2cm! 8 ohms 104d8 20 Watts 40 Watts 2kHz-20kHz 2.2Kg 14.8165.) 16,000 Gauss
NOTES: The Yamaha S4115H speaker system is identical to the A4115H, except it contains no amplifier.
In above specifications, when dB represents a specific voltage, OdB is referenced to 0.775V.
500 TK
FREQUENCY Hz)
A4115H Frequency Response
ZK 5K 10K
A4118H Horizontal 180° dispersion
A
X
tMeasured with a 6dB/octave filter at
12.5kHz feguivalent to a 20kHz filter with
infinite dB/octave attenuation).
A4115H Vertical 180° dispersion
UPPER
0
Let TR
DYN
==
*Sensitivity at 4 feet, with 1 watt is 1.75dB
below DIN/JIS standard.
**Sensitivity is extremely significant, since
an increase of only 3dB in sensitivity is
equivalent to doubling the amplifier power.
In other words, a 50-Watt amp used with a
speaker that is 3dB more sensitive than
another speaker, will produce the same
sound level as a 100-Watt amp used with
the fess sensitive speaker.
Specifications subject to change without notice,
== @ YAMAHA
NIPPON GAKKI CO., LTD. HAMAMATSU, JAPAN
LOM-202 TUY 7 25 Printed in Japan
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