Nakamichi CA-5II Owner's manual

Brand: Nakamichi

Model: CA-5II

Type: Owner's manual

Nakamichi

hu/Ch-

......

Control Amplifier

Owner's Manual

Nak mlc

is producing Hi-R eq

pment for 52 countries of the wor

ld.

Man

y countries have safety r

ulations, to which Nakamic

has to comply during production.

The additional mentioning of "A"

our

model means that Ihis product has

en produced according

to the requirements In the

ited States of the Underwrites Laboratories

(UL),

well as o

applicable state and Federal safety standards.

Within the United States, Nakamlchi has

thorized Its local

stributors to offer warranties

products which have been produced for

e United States market

accordance with the foregoing

standards.

Notice to Purchasers

the Model

CA-sn

Reference In

e illustrations and the t

t Is made to "CA-5A

n,"

but opera

on and functions are

completely Identical to your mode

RISK

ELECTRI[

OCK.

OOHOTDPEH

---CAUTION---

REDUCE

THE

RISK OF

ELECTRIC SHOCK,

NOT

REMOVE

COVER

(OR

BACK)

USER-SERVICEABLE PARTS INSIDE

REFER

SERVICING

QUALIFIED

SERVICE PERSONNEL

The

lightning

flash with arrowhead

symbol, Within an equilateral t

angle, is

intended to alert the u

r of the presence

of uninsufatea

angerous voltage"

within the product's enclosure,

at m y

be of

suffic

ient

magnitude

to constitute a

risk of electric

sho

to persons.

The exclamation point with

equ

ateral t

ngle

IS Intended

alert

the user

the presence of

portant

operating and

nance (servicing)

Instructions, in the literature

accompanyi

the appliance.

WARNING

PREVENT

FIRE

SHOCK

HAZARD,

NOT

EXPOSE

THIS APPLIANCE

RAIN

MOISTU

RE.

is equipment generates and uses radio

frequency energy and If not

sta

ed and used

properly, that is, in strict accordance with the

manufacturer's instructions,

y cause

interference to r

adiO

and televisi

reception. It

has been ty

tested and found to comply

e limits for a Class B computing device in

accordance with the specifications in Subpart

J of Part 15 of FCC

les, w

ch are deSign d

to pro

de reason

le protecti

against su

interference in a residential installation.

wever, there is

guarantee that

interference

not occur in a parti

lar

installation. If this equipment does cause

interference to radio or television reception,

which can be determined by turning the

equipment off and on, the user is encouraged

to try to correct the interference

one or

more of the f

lowing measures:

- reorient the receiving antenna

- relocate this equip

respect to the

receiver

move

is equipment away from

e rec

ver

plug t

s equipment into a different

so that equipment

d receiver are on

different branch cirCUits.

If necessa

ry,

r should consult

dealer or an experienced radloltelevision

technician for additional suggestions. The user

may

nd the fo

owing booklet prepared by the

Federal Communications Commission helpful:

"How to Identify and Resolve Radio-TV

Interference Problems".

This booklet is available from the

Government P

nting Office,

Wash

ington,

20402

, Stock No.

004-000

00345-4

Congratulations!

You

have chosen a truly outstanding product. The Nakamlchi CA-5AlI is a control

amplifier deSigned to provide superior performance and utterly pure

Sign

transmission, It achieves this aim without relying

a large amount of negative

feedback, The Multi-Regulated Power Supply and Isolated-Ground principle effectively

eliminate crosstalk and interference arising in the power supply. Only stri

ctly

selected,

high quality parts are used throughout, such

metal-film resistors and circuit boards

with oxygen-free copper traces, Circuit design is Simple and effective. The ultimate

result is music reproduction without the slightest trace of coloralion.

order

take full advantage of this unit's superior performance, please read this

manual in its entirety and retain it for future reference,

Thank

you

Nakamlchi Corporation.

Please record the Model Number and Serial Model Number and Serial Number are located

Number in the

space

provided below and on the rear panel of the unit.

retain these numbers.

Model Number:

~AIl

::.:.

:::;

____

~~~

e;.

.!..

Serial Number:

________

_ _ _

Safety

Instructions

The following safety instructions have been

Included in compliance with safety standard

regulations, Please read them carefull

Read Instructions - Ali the safety and

operating instructions should be read

before the appliance is operated.

2. Retain instructions- The safety and

operating instructions should be retained

for future reference,

3. Heed Warnings- Adhere to all

rnings on

the appliance and in the operating

instructions.

4. Follow Instructions

-All

operating and use

instructions should be followed,

5. Water and Moisture- The appliance should

not be used near water

-f

example, near

a bathtub, washbowl, kitchen sink, laundry

tub, in a wei basement, or near a swimming

pool, etc.

6. Carts and Stands - The appliance should be

used only with a cart

stand that is

recommended

the manufacturer.

7. Wall or Ceili

Mounting - The appliance

should be mounted to a wall

ceiling only

as recommended by Ihe manufacturer,

S Venti lation - The appliance should be

situated

that its location or positi

does

not interfere with Its proper

ven

lation.

For

example, the appliance should not be

situated

a bed, sofa, rug or similar

surface that may block the ventilation

openings; or placed in a built-

installation,

such

a bookcase or cabinet that may

impede the flow of

r through the

ventilation openings.

9, Heat - The appliance should be situated

away from heat sources

suc

radiators,

heat registers, stoves, or other appliances

(including amplifiers) which produce heat.

1O,Power Sources- The appliance should be

connected to a power supply only of the

type described in the operating Instructions

as marked on the appliance.

11.Grounding

arization-precautions

should be taken so that the ground

g or

polarization means of an appliance is not

defeated.

12,Power-Cord Protection

-P

ower-supply

cords should be routed

that they are not

likely to be walked

pinched by items

placed upon or against

, paying

particular attention to cords at plugs,

convenience receptacles, and the point

where they exit from the

applianc

13.Cleaning- The appliance should be cleaned

only

recommended by the manufacture

14. Nonuse Periods- The power cord of the

appliance should be unplugged from the

outlet when left unused for a long period of

time.

15.0b

ject and

quid Entry- Care should be

taken so that objects do not fall and liquids

are not spilled into the enclosure through

openings.

16.0amage Requiring Service - The appliance

should be serviced by quali

ed service

personnel when :

A The power-supply cord or the plug has

been damaged;

B. Objects have fallen, or liquid has been

spilled into the appliance; or,

C. The appliance has been exposed to

rain; or,

0, The appliance does not appear to

operate normally or exhibits a marked

change in performance; or,

The appliance has been dropped, or

enclosure damaged.

17. Servicing- The user should not attempt to

service the appliance beyond that

described In the operating instruction. All

other serviCing should be referred to

qualified service personnel.

Caring

for

the

Exterior

Panels

Caring for the exterior panels of the unit

should be limited to wiping wi

a soft.

dry cloth.

AVOid

using sol

nts or

alcohol-based cleaners.

Controls and Features

Power

Indicator

Output

Level

(Volume)

Control

Power

Switch

r:..J\"SAIl

u.1t

A," I

.....

;:::::::::::::::::::::::::::::::::::::j:::::::::::::::::::::::+:::::::::::::::

::::::::::::~:::::::;;p;;;;_~"::=::'...J

Tuner Input

Jacks

Phono

Input

Jacks

UtIL

10<0

....

Ground Terminal

Auxiliary Input

Jacks

Tape Deck 1 Playback (Input)

Jacks

Tape Deck 2 Playback (Input)

Jacks

Une

Output

Jacks

Input

Jacks

Una

Output

Jacks

Tape

Deck

2 Recording (Output)

Jacks

....

C Tape Deck 1 Recording (Output)

Jacks

AC Power

Connector

o Tone

Controls

Serve to adjust the tonal balance. By turning

a knob clockwise, the respective range is

emphasIzed, and by turning it one word the

frequencies are attenuated. To

actil/ate the

tone control circuits. set the Tone switch to

"On."

Bass :

From

the center clickstop position.

adjustment is possible within the

range of ±

dB (at

)

Treble:

From

the center clickstop position,

adjustment is possible

thin the

range of

±10

(at

kHz)

8 Tone

Switch

Setting this switch to "On" activates the tone

control circuits. When the switch is set to

"Off," the circuits are bypassed and the signal

Is routed directly

the power amplifier

section, to further enhance sonic purity.

C) Tape

Monitor

Switch

Tape 1 For playback of a tape deck

connected to the Tape

1 jacks.

Tape

2 For playback of a tape deck

connected to the Tape

2 jacks.

Source

listen to the program source

chosen with the Input selector.

Copy'

...

For lape dubbing from tape

Copy

1 :

deck 1 to tape deck

r tape dubbing from tape

deck 2 to tape deck

Input

Selector

Serves to select one of the program sources

connected to the CA-SAll : tuner, turntable,

player, etc.

o Balance

Control

Serves to adjust left/right speaker balance.

(\)

Cartridge

Selector

Set this switch to the correct position for the

type of phono cartridge in use.

Cartridge

load/Gain

Selector

When a moving-magnet cartridge is used,

switch selects the terminati

capacitance.

With moving-coil cartridges, the switch

controls the gain of the head amplifier.

o Terminal

for

Remote Power

On/Off

Switching

Connect the op

onal System Power Control

strip (SPC-1) to this terminal

o Voltage

Selector

voltage

factory set for the country

which you purchased your unit. T

voltage

selector permits re-seltlng of mains voltage

case the unit is to

used in a different

country.

Note:

Safety regulations

certain countries

prohibit Inclusion of a voltage selector.

This feature, therefore, may

absent

trom your unit.

Connections

rntable

pe Deck 2

L, R Outputs

To L, R Inputs

L, R Outputs

puts

l_,

R Outputs

_----_

Power

Amp

fier 2

To AC

W II

R Inputs

Outlet or

onal System

Power Control

Stri

p (SPC-1)

Player

Tape Deck 1 Power A

mpl

ifier 1

System Power Contr

st rip (SPC-1)

Establish connections

to other system

components

shown in the above example.

ile making connections, be sure to set the

power switches of a

components to Off.

• For easy identification, the upper row of all

input and output jacks of this unit serves

e left channel and the lower row the right

chann

Turntable Connections

Connect the ground lead from the turn

ble to

the Ground (GND) termin

it.

• Cartridge Selector

The Cartridge selector switch on the rear

panel of this unit must

set to the correct

position, depending

the type

phono

pickup used.

Moving Magnet: For moving-magnet

(MM

)

type cartridges (including the so-call

MI,

and

types), as well

for high-output

moving-coil cartridges with a rated output

voltage

1.0

or more.

Moving Coil: For moving-coil type cartridg

with a rated output voltage of less than 1.0

• Nev

use a moving-magnet cartridge with

the selector set to the "Moving Coil"

positi

, as this will result in severe

distortion and possible damage to this unit

and to the loudspeakers.

• Cartridge Loading

This

corporates a Cartridge Loa

ain

selector to ensure optimum terminati

and

gain

for best results with a wide range of

phono cartridges.

When the Cartridge selector is set to "Moving

Magnet," a choice of three differ

t lo

capacitance values is provided (100 p

200

pF,

300

pF) When the Cartridge

selector is set to "Moving

il," the he

amplifier gain can be switched

three steps

(

24,30

, or

When determining the capacitance setting for

moving-magnet cartridges, the so-ca

floating capacitance added by the connecting

cables between the cartridge and this unit's

Phono Inputs must also be taken into

consideration.

a rule of thumb, the desired

capacitance can be found by subtracting the

cable capaCitance (approx. 100 pF

r ordinary

cables) from the recommended cap

itance

ding for your cartridge (usually listed in the

spec sheet

wever, as the floating capaCitance can vary

considerably depending

the type and l

gth

of cable involved

ncluding tonearm wiri

etc

.),

a final decision

the optimum position

of the Cartridge Load/Ga

selector should

made

ear.

The Cartridge Load/

in selector permits

switching of the moving-coil preamp

fier gain

in three steps, to accommodate cartridges with

different rated outputs. (information

garding

the output level is gi

ven

in the specification

sheet accompanying the cartridge

Rated output of

cartridge

Load/Gain selector

setllng

- 0.4

24 dB

0.5 - 0.2 mV

0.3

or less

36dB

More than 1.0

Set Cartridge selector

to the "MM" position.

•

e load impedance for the moving-coli

input of this unit is factory-set to

ms.

This value is suitable for the vast majority

of MC

cartr

idges. However, a few cartridge

types will perform best with lower

impedance settings. For such cases, the

impedance can be changed to

, 20,

10,

3 ohms by adding internal resistors.

(The optimum load impedance for a

cartridge is usually listed in its

specification sheet.) The resistors to be

used for altering the impedance are

supplied with

the

control amplifie

When

wishing

make

this

alteration,

sure

contact

your

dealer.

Never

attempt

Install the

resistors

yourself,

opening

the

unit

involves

considerable

risk

electric

shock.

Always turn the Volume control fully down

before operating the Cartridge selector

the Load/Ga

sel

ector

, to protect the

loudspeakers from damage.

Operation

Before operating the unit, make sure that the

Output Level control is fully turned to minimum.

For a brief period (approx. 4 seconds) after

power to this unit is switched

. the output of

the CA-

SAIT

remains muted and no sound will

be heard, until a

internal

circuits

to stabiliz

After all system connections

are

completed,

make sure that this unit's Output Level control

is turned to

nimum.

en set this unit's

Power switch

"On" and finally tu

the

pow

amplifier. Leave the Output Level control

of the CA-SA

at minimum until the switch-on

muting interval of the power amplifier is

terminated.

Phono Playback

Set the Input selector

"Phono" and the Tape

Monitor switch to "Source." Then operate the

turntabl

After the stylus was lowered onto the

record, turn up the Output Level control of this

unit to obtain the desired listening volume.

required, adjust the sound with the Balance

and Tone controls.

•

protect the loudspeakers from possible

damage, always turn the Ou

ut Level

control fully to minimum before lowering or

lifting the stylus.

Tape

Deck

Connections

This u

t provides two sets of recording

outputs and

ayback inputs for connection of

two tape recorders. Conne t the output

terminals of a tape deck to this

it's Tape

Playback ja

cks

(1 or 2

d the input

terminals of a tape deck to this unit's Tape

Recording

jacks

or 2).

Power Amplifier Connections

This unit provides two sets of

ne output

that two power amplifiers can be driven

simultaneousl

if des

. Since exactly the

same signal is supp

at these ou

uts, either

set can be chosen when only one power

amplifier is used.

Never

insert

y shorting

ugs or the like into the other set of

ne output

Jacks. as this can cause damage to

e unit.

Ustening

Other

Program Sources

(CD Player, Tuner, etc.)

Set

the

put select

to "C

uner" or

x" as required and set the Tape Monitor

switch

"Source

Then operate the CD

player, tuner

other component. Adjust the

volume level, balance and tonal character with

the respective controls of the

CA-SA

Recording and Playback With a Tape

Deck

For playback of a tape. set the Tape Monit

switch to "Tape 1"

ape 2," as required.

For recording

a tape deck, select the

desired program s

our

ce with the Input selector

and set the Tape Monitor switch of the CA-5A

to "Source." Then set the

tap

deck

to the

record mode. The signal supplied to the tape

deck

is completely unaHected

the volume,

tone control and balance settings of the CA

-SAIT

• The signal from the program source chosen

the Input selector is always present at

both sets of tape recording outputs.

Recording can therefore also be

carr

out

on two tape

decks

simultaneously.

Power Supply Connections

nfi

that this unit's Power swi

h is set to

"Off

Then insert the supplied power c

d into

the

Power conne

ctor

the rear panel of

this unit and plug the other end into

AC wall

et.

After all system connections are completed,

make

sure

that this unit's Output

vel control

is turned to mi

mum.

en set this unit's

Power switch to "On" and finally tu

the

power amplifier. Leave the Output Level control

of the CA-SA

at minim

until the s

witc

h-on

muting interval of the power amplifier is

terminated.

• Use

the

System

Power

Control

strip

SPC-1

By connecting the

tional System Power

Control

strip

(SPC

-1)

the termin

for

Remote Power

OnlOff Switching on

e rear

panel of this un

ft,

power to other system

components can be controll

by the Power

tch

of the

CA-SAIT

r details, please refer

to the instructions supplied with the SPC

-1.

• If the connected tape

deck

possesses three

heads and monitoring capability, the quality

of the a

ual recorded Signal can be

checked by setting

e Tape M

itor

itc

of the CA-

to "Tape 1" (or "Tape 2")

during recordin

Tape Dubbing

When two tape recorders are connecte

dubb

th directions can be carried out

easil

To play back a tape on tape deck 1 and record

it on tape

deck

set the Tape Monitor switch

to "Copy 1

reverse the process,

choose the

"Copy

1" position. In these

switch positions, the ou

ut signal of the

recording

deck

is present at the preamplifier

output

jacks

1 and

If the recording deck has

three heads. monitoring can therefore be

carried out, to ch

eck

the quali

the actual

recorded Signal.

The signal

supp

lied

the tape input terminals

of the tape recorder during dubbing is

completely unaffected by the volume, tone

contro

l and balance settings of the CA

-5

AlI.

Troubleshooting

Condltlon Probable Cause Remedy

pow

er.

AC cord not plugged properl y

wer

Plug in

cord firmly.

connector of this unit or AC wall oullet.

2. Internal

line

se h s blow

Con

tact

authorized service station.

No sound.

Faulty connections of

A-type plugs,

ielded

Check connections.

cables between components, or speaker cables.

Input selector or Tape

nitor switch n

set 4. Select corre

positions.

correctly.

5. Power ampli

er at fault (protection circuits are

Refer to O

WrJe

r's M

ual

Pow

plifi

er.

operat

g, et

c.)

Left/right cha

els r v rsed, no sound from

ulty connections of

A-type plugs, shielded 6. Check connectio

ns.

channe

cables between components, or speaker cables.

lance control turn

lly to

e side. 7. Adjust

Bal

nce control.

m noi e is heard during

cord playback.

Fau

lty or incomplete connections of RCA-type

Insert plugs

mly.

lty or incomplete connection of ground cable.

Check g

und connecti

on.

10. Output cable from turntable r

clos to AC

ute AC power lines

far

possible

from

power cord.

tput cables

d cartridge.

Low

vol

levels

en using

mov

ing-coil

11.

ving-coi I cartridge wilh

ted output of less 1

Set

ridge selector to "Moving

il."

cart

dge.

than

1.0

used at "Mov

Mag

net" positio

12. Load impedance selting

correct.

. Select proper lo

Impedance

r cartridge in use.

Specifications

npu

Sens

iti

vit

/Impedance

Phono MC (36 dB G in) ..

.. 45 I'-V/ 100 ohms

(30

G in)

.. 85

I'-

Vl100

(24

in) .

........

. 165

:LV

/l0

0 0hms

Phon

.2.5

mV/50

Tuner/CO/AuxlTape .

.....

150 rnV/12

kohms

Inp

Sensiti

vity

(

New

)

Phono

(36

Gain).

.........

31'-V

(30 dB

in)

.....

I'-V

(24

in). ..

I'-

o MM..

...............

0.63

Tuner/C

AuxlTape. .37.5

imum

Input

Level

kHz, Non-

Clipp

ing Level, N

IHF

)

Phono MC (36 dB

in). .. 4.5 mV

(30

Gain)

8.5

(24

Gain).

...

16.5

ono MM.. .

...

270 mV

tput

eve

Impedance

Out .

.. .. 2

VI' kohms

c Out

. j 50 mV

kohms

Maximum

tput

Level

(

20,000

Hz,

1%THO,

Out,

New

)

....

Total H

armonic

Distortio

n (20 -

Hz)

Phono

c Ou

1 V

(36 dB Gainl

............

...

Less

an 0.005%

(24 dB Gai

. . ..

......

Less

o MM to

Rec

Out,

1 V ..

.....

ss t

han

0.002%

Tuner I

xlTape to

Pre Out. 2 V ..

.. Less than 0.002%

equenc

Response

er/CO/

xlT

ape .

. 1- 100,000

+0, - 3 dB

20,

000

+0,

-0.

2 dB

Deviati

Phono MC.. . .. 20

-2

0,000

0.3

Phono

.. . . 20- 20,0

± 0.25 dB

Signa

Noise

Rat

(JH

A-WTD)

Phono

Input,

0.5

V Pre Out, Input Short

ed)

. Better than

(30 dB Gain)

...

.....

. Better

an 80 dB

(24 dB

in) . .

....

Better than 78 dB

Phono MM

Input,

0.5

Pre

Out

, Input Shorted)

...................

tter

Tuner/CO/AuxlTape (0.5 V Input, 0.5 V P

Out, Input

Sho

rted)

tter

Stereo

Sepa

ati

Hz/1

kHz

10kHz

)

ono MC (0.5

Inpu

1 V Pre Out, Input Shorted)

(36 dB G in) .

93/85/65

4 dB Gain) . .

.90/8

/64

Phono

Inp

ut,

1 V

Pre

Out, Input

orted)

.....

....

100/

/64

Tuner/CO/AuxlTape

(0.5

V Input, 1 V Pre O

ut,

Input Shortedl

.....

110

/95f7

one

Cont

rol

Characteristics

Bass.. ..

...............

20 Hz ± 10 dB

Treb

le.

......

...

20 kHz ± 1 0 dB

Remote

Pow

/Off

Contro

Output

......

. 24 V

Pow

Source

. . ..

........

...

.....

0/220-

220 or 240 V

;

(According to country of

sale)

Pow

C()nsu

tion

....

. 23 W m

Dimensions

...

435(W) x 3

(H)

x 287(0)

17-1

(

x 2-1 12(H) x 1 1 -5/ 16(0)

inches

Approximate

Weighl

........

....

5.1

kg,

Ibs. 4

•

Spe

cifications

d design are subject to chan

for further improv

eme

with

t notic

Nakamichi Corporatio

Tokyo Offico

Shinjuku Da

chi Sei

mei

Bldg., 2

-7-1

Nishishinjuku, Shlnjuku-k

Tokyo

163

one:

(03)

342-4461 Telex: 232

4721

(NAKAM J)

Nakamichi

erica Corporation

19701 S

th Vermont A

Tor

, CA 0502 Pho

: (

213

) 538-

8150

Nakamichi

Can

ada

276 South

st,

Dri

ve, Vancouver,

B.C

X 2

Phone:

04) 324-7535

Nakamichi GmbH

Stephanlsnstrasse 6

,4000

dorf 1 Phone:

359036

0004)90A

87U905

Ptlf'"

,fld

111

Jillun

Nakamichi CA-5II Owner's manual

Nakamichi CA-5II Owner's manual

Nakamichi CA-5II Owner's manual

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