Carver HR 742 Owners Manual

User Manual:

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Page Count: 37

HR-732

& HR-742

Sonic Holognaphf

Receivens

with

ACCD

FM Tuning

Section

/I\ m /l\

/ ,l \ RrsK

ELEcrRrc sHocK / | \

/ t \"'-.-riorioioi'En"--'l

: \

CAUTION:

TO REDUCE THE RISK

ELECTRIC SHOCK

DO NOT REMOVE

COVER

(OR

BACK)

USER.SERVICEABLE

PARTS INSIDE

REFER SERVICING

OUALIFIED

PERSONNEL

Safety

Instructions

1. Read lnstructions - All the safety and operation

instructions should be read before the Carver

Component is operated.

2. Retain Instructions - The safety and operating

instructions should be kept for future reference.

3. Heed Wamings - All wamings on the Compo-

nent and in these operating instructions should be

followed.

4. Follow Instructions - All operating and other

instructions should be followed.

5. Water and Moisture - The Component should

not be used

near water - for example, near a bath-

tub, washbowl, kitchen sink, laundrytub, in awet

basement, or near a swimming pool, etc.

6. Ventilation - The Component should be

situated so that its location or position does not

interfere

with its proper ventilation. For example,

the Component should not be situated on a bed,

sofa, rug or similar surface that may block any

ventilation openings;

or placed

in a built-in installa-

tion such as a bookcase

or cabinet that may impede

the flow of air through ventilation openings.

7. Heat-The Component

shouldbe situated away

from heat sources such

as radiators, or other devices

which produce heat.

Power

Sources

- The Component should be

connected to a power supply only of the type

described

in these operation instructions or as

marked on the Component.

9. Power Cord I'rotection - Power-supply

cords

should be routed so that they are

not likely to be

walked upon or pinched by items placed

upon or

against them, paying particular attention to cords at

plugs,

convenience receptacles, and the point where

they exit the Component.

The lightning flash with arrowhead symbol

within

an equilateral triangle

is intended to alert

the user to the oresence of uninsulated

"dangerous

voltage" within

the

product's

enclosure, that may be of sufficient

magnitude

to constitute a risk of electric shock to oersons.

The

exclamation ooint

within

an eouilateral

triangle

is intended to alert the user of the

presence

of important

operating and

main-

tenance

(servicing)

instructions

the

literature

accompanying the appliance.

10. Cleaning

- The Component should be cleaned

only as recommended in this manual.

11. Non-use

Periods

-The power cord of the

Component shouldbe unplugged from the ouflet

when unused

for a long period of time.

12. Object and Uquid Entry - Care

should be

taken so that objects do not fall into and liquids are

not spilled into the inside of the Component.

13. Damage Requiring Service

- The Component

should be serviced onlyby qualified service

person-

nelwhen:

A. The power-supply

cord or the plW has been

damaged; or

Obiects

have fallen, or liquid has spilled

into

the Componen! or

C. The Component has been exposed to rain; or

D. The Component does not appear to operate

normally or exhibits a marked change

performance;

E. The Component has been dropped, or its

cabinet damaged.

PORTABLE CARTWARNING

Carts and stands

The

Component should be

used only with a cart or

stand that is recom-

mended by the

manufactirrer. A

Component and

cart combination

should be moved

with care. Quick

stops,

excessive

torce, and uneven

sunaces may cause

the Comoonent and

cart combination to

ovefium.

Can'tWait?

If you're super-impatient (and/or are expert at

stereo

theater installation, you can skip ahead

the "nitty gritty" information which is marked

with tabs on the upper right hand corner

manual pages.

Otherwise,

we suggest you read

the entire

manual carefullybefore proceeding. The HR-732

andHR-742

offer a

wide variety of connection

options which you should consider

in advance.

14.

SeMcing-The user should

not attempt

service

the Componentbeyond those

means

described in this operating manual. All other

servicing

should be referred

to qualified service

penonnel.

15. To prevent elecLric

shock,

do not use this

polarLed plugwith an extension

cord, receptacle

other ouflet unless

the blades can be ftrlly inserted

prevent blade

exposure.

Pour preevenir

les

chocs 6lectriques

ne pas

utiliser

cette

fiche polarised

av€cun prolongateuq,

un prise

courant ou une autre

sortie

de courant, sauf

si les

lames peuvent €tre ins6r6es

i fond sans laisser

aucune

pariie d d6couvert.

1"6. Grounding or Polarization

- Precautions

should

be taken so that the grounding or polarization

means

of the Component is not defeated.

17. Intemal/Extemal Voltage

Selectors

- Intemal or

extemal line voltage selector

switches, if any,

should

onlybe reset

and re-equipped

with a proper plug for

altemate

voltage

by a qualified service

technician.

See

an Authorized Carver Dealer

for more

information.

18.

Attachment Plugs for Altemate Line Voltage

(Dual voltage

models

ody)- See your Authorized

Carver Dealer

for information on the attachment

plug for altemate voltage

use. This pertains

to dual-

voltage

units only.

19. Power Lines - An outdoor antenna should

be located away from power lines.

WARNING

- To reduce

the risk of fire or electric

shoc( do not expose

this appliance

to rain or

moisture.

GROUND CLAMP

EXAMPLE

ANTENNA

GROUNDING

ACCORDING

TO NATIONAL

ELECTRICAL

CODE INSTRUCTIONS

CONTAINED

IN ARTICLE

810

- ''RADIO

AND TELEVISION

EQUIPMENT''

ANTENNA

LEAD IN WIRE

DISCHABGE

UNIT,

roN 810-20)

GROUNDING

CONDUCTORS

(NEC

SECTTON 810-21)

NEC - NATIONAL

ELECTRICAL

CODE.

NOTE TO

CATV INSTALLER

This reminder

to call

the CATV system installer's

attention

to Article

g2O-40

the. NEC that

provides

guidelines

for

proper

grounding

and inparticular,

specrtres

that the cabte

ground

shall

be connected

to the

grounding

system

the building

as close tb

the

point

cable entry

praciical.

POWER

SERVICE

GROUNDING

ELECTRODE

SYSTEM

(NEC

ART

250. PART H)

IMPORTANT

"FAST

TRACK'

INFORMI\TION

FOR THE

IMPATIENT

USER

Whilethe

HR-732 and HR-742

ore

pretty

intuitive in

theirconnection ond

operotion, there ARE important

Wints

which

moy not

be apparent, uen to on

expeienced audiophile.

These

points

(including

differences

between the two

receiver models)

ore noted in boxes like

this one.

So even if

you

just

skim

the

monuol, make

sure to reod eoch

box,

A message

from

Bob

Caruer

Congratulations on purchasing

a truly top

quality stereo receiver;

a design that combines

overall sonic

excellence, useful features

and

exclusive

Carver technology.

The basics

At the heart

of the

HR-732/HR-742is

a superb

audio/video switcher/preamplifier with moving

magnet phono stage and inputs for three audio-

only sources

plus three

audio/video

sources

(picture

and

sound).

Distortion

and

noise

are excep-

tionally low.

Dynarnic head-

room is

high

enough

to handle

the most aggressively recorded

CD or LaserDisc. Moreover,

we think that vou'll

be impressed with the HR-732/HR-742'soverall

musicality, a subjective quality

that defies quanti-

fication. Part

of this derives from overall design.

Part is

attention to detail. For

example, by

motorizing what is essentially

a standard,

low-

distortion volume

control potentiometer

such as

used in our Reference Preamplifiers,

we can

eliminate potential

overload problems

and simul-

taneously

simplify the circuitry.

Sonic Holographf

Included

in the HR-732lHR-742's preamplifier

section is

a Sonic Hologram

Generator. Sonic

Holograph/o is an exclusive

Carver

invention

that helps

restore the true

spacial characteristics

of recordings.

It can bring

you a

more realistic

listening

experience through pyschoacoustic

pro-

cessing of the stereo signals. Instead of the

flat,

between-the-loudspeaker imaging

associated

with conventional stereo,

Sonic

Holographf

generates

a sonic image

- a sound stage

- that's

remarkably believable

and convincing. You'll

experience a noticeable increase in sound stage

depth as well as width. Furthermore,

it works

with any stereo input including CD's, tapes,

records, FM

broadcasts and VHS Hi-Fi video

soundtracks, and

does

not require additional

speakers. It DOES, however, require

careful set up

and speaker

placement.

In other

words,

to get

the full effect,

vou'll have

to take some time and

read

the instructions carefully

to fine tune Sonic

Holographf to your room and speakers.

. . but

the results

can be absolutely astonishing. We get

many letters

from Carver

owners

who simply

cannot live without the improvements Sonic

HolographyP

makes on their favorite music.

Serious

power amplifier sections

The HR-732 provides

60 watts per channel

while the HR-742's

rated

output is 80 watts per

channel. Both power amplifier sections

use large

power supplies which give

your speakers

the

"muscle" to fully realize

dynamic musical peaks.

Even

at moderate

listening levels,

bass

will be

tighter and more authoritative thanks to the high

current/high voltage

output of the power amp

section. Both receivers

can also handle low im-

pedance

dips as low as two ohms which can

occur

with many popular speakers

(see

page

and 18 for more complete explanations

speaker impedances).

Asymmetrical Charge-Coupled FM Detection

This circuitry (ACCD

for short) can improve

FM reception on stations which are plagued

with

multipath distortion and noise

. It works by

dynamically evaluating

three aspects

of the in-

coming FM signal: signal strength, modulation

level and multipath content. Based on the qual-

ity of the signal, ACCD uses as much of the

undistorted L/R

component (stereo)

component

possible

to regenerate

accurate

stereo sound.

ACCD can't work miracles

on really terrible re-

ception, but it can make

a significant difference

on many stations.

Simplicity as a design goal

Frankly,

there are 60 and BO-watt receivers

the market with more flashing lights, buttons

and

bells and whistles.

Some of them are so com-

plicated

that they seem

to take a degree in

computer programming to operate. When de-

signing the HR-732

andHR-742,

we included

only those features which we knew to be truly

useful

and that would not degrade the overall

sound of the receiver. Our design

goals

are

reflected perfectly

in the elegant

appearance

and

sonic

excellence of these receivers.

Madewhere?

Carver is American-owned

and based in

Lymnwood,

Washington. Of the almost 250

people

who work here,

most are engaged in

building Carver home, mobile and professional

audio products. Carver's goal

is and always will

be to provide audiophile-quality products

affordable

prices. Thus,

we strive

to take advan-

tage

of manufacturing economies

and methods

wherever

it is possible

without lowering product

quality. As a result, we

use outside

and overseas

production facilities

for some

products

and indi-

cated this clearly on the packing

box. Suffice

it to

say

that the HR-732

andHR-742

are

great values

because we have chosen

the most effective pro-

duction source for these particular models.

Aboutthis manual

In response

to Carver

customer

suggestions,

we're

trying a new style

of manual that's de-

signed

to cover more possible

hook-ups

and

better

explain the operation of the HR-732/HR-

742. As

a result,

this manual may seem much

more complicated

than those which come with

some receivers.

If you're new to hooking up ste-

reo

equipment, we think that you will appreciate

our detailed approach. However, we've

also pro-

vided a

means

bywhich the advanced

user can

quickly grasp

the key points and differences

the HR-7

IHR-7

42. Important information is

enclosed in boxes like the one on the previous

page. Even

if you don't read

any other part of the

manual, please

check out each of these

boxes be-

fore proceeding.

Onceagain, thankyou!

There

are a mind-boggling number of receiver

brands and models

on the market today. We ap-

preciate

your choice of the Carver HR-732

HR-742.

Their clean appearance

belies

the wealth

of features

and great

sound

that each is capable

of. I hope that you will have

many years

of lis-

tening enjoyment.

Sincerely,

W- G"*^

Bob Carver

Hook-Up

Save

the packing box and

your sales

invoice!

lp p1i; yegesnV

for

repocking

your

HR-732/HR-742

ffit

ever

needs

ie:ice

(orif

you

move).

Keep

the

soles

receiptfrom

the store

where

you

bought your

H R-

3 2

HR-742.

. . |) to

establish

the

durotion

your

Wanonty;

2) for penonol

nsuronce

purposes.

..,"Y1:l_9_p:li3g the box, please

check

for any

vlslDte

srg-n

ot damage

that did not appear

on the

ourslcle

ot the box. If you DO encouhter

what

appears

to be

concealed

damage,

please

consult

your Carver

Dealer

before

furt[erinpacking or

installing

the

unit.

Alongwith the

steps

noted

above,

take

mo_

ment and fill in the following information for

convenient

reference:

Model:

tl HR-732 aHR-742

Sonic

Holographf Receiver

Serial

number

. Fln_ally,

take

moment to fill out and return

the Warranty Card

that came

with yo"i-i*".

receiver.

Placement

The

real

no-no,s

are

listedon the

first

page

thjs manual. They,re

sically

egall

f ;o'rded

warnings

about

common sense

sIuffiike,,don,t

usg

the

HR-732/HR-742

in your

swimminN

piol,, and

don't

take

this

receiver

intimally withtouii ioctots

presciption" etc.

Assuming

your

overall

location

okay,

the

HR-732lHRll+2

canU"

porttio""J ,, ouit'of u

"stack".of

com-ponents.

However,

iura "ot to

DrocK

alr

flow trom the

receiver,s

top panel

venti_

lation-

areas.

you set

another

.o-'p5"L"i ""

l9p

the

HR-732

orHR-742,

make

iure

that

its

"feet"

provide

least

a l/4-inch gup

U"t*""" tfr"

component

and

the HR_732|HR_742.

Connection

tips

We're

about to launch into the actual

nitty

gltg -._.

" I "cti

ng-cable

fr enzy

at,s

neiessary

wnen

you install

a-new

component. First,

though,

consider

the

following

tips-

I Make

sure

all components are

OFF

before

making any connections.

I Make

sure

that ,,left

hooked to left

and

right is

hooked

to right,,

eactr

connection. The obvioui way to assure

!!is is.tqa;lignone

hook_up

corO piug

color

to left

and

the

other

to rieht.'

_Generally

RED

used

to signi# RIGHT.

White,

grey

black

then ripresents

left.

I Whenever

possible,

keep

power cords

away

from signal

cablesiiirputs

from

player,

tape

deck,

etc.)

to prevent

hum. This

especially

impoitant

for

phono cables

which cirry verv

weak

signals.

While hum is

lejs

of i problem

today

than it was

in the past,

nbise

can

still find its way into your system

if a

component,s

power cord becomes

too

intimately

involved

with a

hook up

. cable. Carver

components,

power'cords

' and convenience

outlets

ardail "; ih;

right side

of the chassis

(when viewed

from the-back). This allows

you to

bundle all the component power

cords

and keep

them separate

frorn signal

connections.

t Type

ofhookup

cables.

Alsocalledinter_

connects,

patch cords

or RCA

cables.

There

are

lots of different grades

hookup -cables.

you can

piy as

much as

$30

per

foot for some

of them! Whether

not you hear

improvement

sound

quality with ,,audiophile,,

inter_

connects

up to your

own ears.

l-towever,

really

CHEAp

or old connec_

tion cables

can

sometimes

DlS_connect

themselves

inside,

causing

hum or

aloss

of sound

in one or both cfiannels. ne_

fore

you send

component in for

s-eM9e,

swap

hook_up

cables

to see

they're

the

culprit. The

other

area

concern

are

video signals.

These

are

far

higher

in frequency

than audio

anO

cin

otten

benefit

from a

higher

quality

in_

terconnect.

Several

companies

mike

sp.cialized

audio/video cables

with two

audio and one video conductor. Check

'em

out.

I DON'T

PANIC.

While there

are

than thirty possible

connections

on the

back.

of the

HR-732lHR

42, matchinx

lhgm u.p

with your

existing

equtpmerit

simple^.

_Besides,

you

probably

won,t

use

all of them anywav.

Purchased

Date

of purchase

Hook-up...an

overuiew

There

are basically

three kinds of connections

on the HR-732/HR-742

(or

any

other A/V receiver

for that matter): one-way incoming, one-way

out-going and two-way.

One-way

connections simply route the signal

from a sound

or video source to the correspond-

ing input on the back

of theHR-732lHR-742.

The HR-732

IHR-7

42 has

one-way incoming

connections

for:

I CD Player

I Turntable

I TV (sound

and picture)

I CDV (LaserDisc

or combi player

such

our.MD/V-S00)

I AM & FM Antennas

I Cable

FM input

I Main In (HR-742

only. Rarely

used, see

page

14)

One-way

OUTgoing connections are:

I Video

Monitor

I Loudspeakers

I Pre

Out (HR-742

only. Rarely

used,

see

page

14)

These

are easy connections. We discuss

each

in detail below. Just

make

sure that "lefts go to

lefts

and rights go to rights."

Two-way connections can get

c6nsiderably

complicated. Theycenter

around

the

HR-732lHR-742's

audio and video

tape

functions

and are

referred

to as tape monitor loops.

"Loops" because

a signal from the HR-7321

HR-742 goes

out to another

component

and then

back

to the receiver.

Two-way connections are as follows:

I Tape

(lN & OUT)

I VCR

(lN and OUT)

The audio tape loop is where you would con-

nect a cassette

deck, an equalizer

or other signal

processor

such as our DPL-33

Dolby

Surround

Processor.

If you're

connecting

any sort

external processor

to your HR-732/HR-742,

take

special

care to follow our instructions, illustra-

tions and general

unsolicited advice in the

sections

that follow.

IndMdudConnections

Instead

of a really complicated

drawing with

all possible

connections

crammed into it, we will

discuss

and illustrate

each

possible

hook-up

indi-

vidually, since that's how you'll make

them: one

at a time. Figures 7

and2 on the next

page

show

the rear panels

of the HR-732

andHR-742. Figure

3 is a general

overview

of what can be

connected

to either receiver.

PHONO and CD and AUX: Basic

audio

connections

PHONO.

This phono circuit is

designed for mov-

ing magnet

cartridges

(Gain:

35 dB;

impedance:

47K

ohms resistance

in parallel

with 150

capacitance).

If you are using a low-output mov-

ing coil cartridge, you will need

a step-up

device

such

as the Carver

MCt.

If your turntable has

ground wire, make

sure

to secure it to the HR-732IHR-742

ground

post

just

to the left of the PHONO input sockets.

NOTE: Do not plug line level

inputs such as

from CD players,

tape

decks, VCR's,

etc. to this

input. Severe

overloading and distortion result.

Receiver

CD PLAYER.

Just

grab

a hook up cable

and

connect.

What if you have two CD players?

Or three

CD players

and an electric glockenspeil

you want

to hook up? The HR-732

and.HR-742

really have

four interchangable

line level

audio inputs not

Make

sure to connect

turntable

oround wire

Receiver

Hook-Up

Save

the packing box and

your sales

invoke!

The

box

is necessary

for repocking

your

HR-732/HR-742

ff it ever needs

service

(orif you

move).

Keep

the

soles

receipt

from

the

store

where you

bought you

r H R-

7 3 2

HR-742.

. . I) to

estoblish

the

durotbn

your

Wananty;

2) for personal

tnsuronce

putwses.

Ugon opening the box, please

check for any

visible sign

of damage

that did not appear

on the

outside

of the box. If you DO encouhler what

appears

to be concealed

damage,

please

consult

your Carver

Dealer

before

further unpacking or

installing

the unit.

Along with the steps

noted above,

take

mo-

ment and fill in the following information for

convenient reference:

Model:I HR-732

aHR-742

Sonic

Holographf Receiver

Serial

number

Purchased

Date

of purchase

Connection

tips

We're about to launch into the actual

nitty

gritty connecting-cable

frenzy

that,s

necessary

when you install

a new

component. First,

though, consider

the following tips.

I Make sure

all components are

OFF

before

making any connections.

I Make sure

that "left is hooked to left

and right is

hooked to right,, at each

connection. The obvious

way to assure

this is

to assign

one hook-up

cord plug

color to left and the other to right.

Generally

RED

is used

to signify RIGHT.

White, grey

or black

then represents

left.

IWhenever

possible,

keep power

cords

away

from signal

cables

(inputs from

CD player,

tape

deck,

etc.)

to prevent

hum. This is

especially

impoitant for

phono cables

which carry very weak

signals.

While

hum is leis

i problem

today than it was

in the past,

noise

can

still find its way into your system

if a

component's power cord becomes

too

intimately involved with a hook up

cable. Carver

components' power cords

and convenience

outlets are

all on the

right side

of the chassis

(when viewed

from the back). This allows

you to

bundle

all

the

component

power

cords

and keep

them separate

from signal

connections.

Type

ofhookup

cables.

Also

called

inter-

connects,

patch

cords

or RCA

cables.

There

are lots of different grades

hookup cables.

You can pay as much as

$30

per

foot for some

of them! Whether

or not you hear

an improvement in

sound

quality

with "audiophile"

inter-

connects

up to your own ears.

However,

really CHEAP

or old connec-

tion cables

can

sometimes

DlS-connect

themselves

inside,

causing

hum or

a loss

of sound

in one

both channels.

Be-

fore you send

a component in for

service,

swap

hook-up cables

to see

they're the culprit. The other area

concern

are video signals.

These

are far

higher in frequency

than audio and can

often benefit from a higher quality in-

terconnect. Several

companies

make

specialized

audio/video cables

with two

audio

and

one

video

conductor.

Check

'em

out.

DON'T

PANIC.

While there

are more

than thirty possible

connections

on the

back

of the HR-732/HR

-7

42, matching

them

up with your existing

equipment

simple.

Besides,

you probably

won,t

use

all of them anyway.

Finally, take

a moment to fill out and return

the Warranty Card

th'at

came with your Carver

receiver.

Placement

The real

no-no's

are listed

on the first page

this manual. They're

basically

legally

worded

warnings

about

common sense

stuff like,,don,t

use the

HR-732/HR-742

in your

swimming

pool,,

and

don't

take

this receiver

intemally

withou{

a doctor,s

prescription"

etc.

Assuming

your overall location is

okay,

the

HR-732/HR-742canbe

positioned

pait of a

"stack"

of components.

However,

sure

not to

block air flow from the receiver's

top panel

venti-

lation areas.

If you set

another

component

top of the HR-732

or HR-742,

make

sure

that its

"feet"

provide

at least

a 1/4-inch

gap

between

the

component

and

the

HR-7321HR-742.

mincluding the audio tape

loop (By

line level

mean

any

signal

input

that,s

NOT

from

micro_

pnone

turntable).

The

other

line level

audio

inputs

are

labeled

TV, VCR

and CDV. If you only have

one video

sound input, the other two can

used

for other

audio

components.

^_Naturally,

it's

most

convenient

to plug

your

play_er

into the

input; still

if ybu i<ln,t yet

have

a CD

player

but DO have

othei,ou.ra

sources/

feel

free

to connect them. We,ve

en_

c9ur1t91ed

tape

buffs with four or fiv-e

decks,

some

ot which are

only for playback,

people

who have

extra

tuner,

both single

play

and

carousel

players,

etc. In these

cises,

simply

use

the

four line level

inputs

as you see

fit. ;tist remem_

Der

wnat you've connected

where,

since

the front

panel

labels

and

remote

control

input buttons

may

not match

your connections.

Fig.l

-HR-732

FMandAMantennas

75-ohm

AntennaTerminal.

you may attacl

a 75-ohm antenna directly, or use

the sm'all

:OO.

ohm dipole FM

antenna and adaptor

s,rppileO

with the

HR-732iHR-742.

If youifV caUte

Uox

ha;.a

snegigl

output,

you may.orr.r".idi_

rectly

to it instead

of to an

external

antenna

(consult

your local cable

operator

for detaili).

CAUflON: EXTERNI|I

ANTENITU\Ii

CAtrt

ZAp yOU!

Extreme

core

must

be used

when

conneding

your

receiver

to an

external

outside

TV/FM

ontenna.

See

the Notice

ot the

front

of this

monuol.

lf you,re

not

100o/o

sure

the

procedure,

consult

qua

lified

i nsto

llatbn

person

nel.

PHONO

GBOUND

Fig.2-HR-742

AUDIO

CONNECTIONS REI\4OTE

CONNECTIONS

VIDEO

CONNECTIONS

PRVI\,4AIN

CONNECTIONS

VIDEO CONNECTIONS

SPEAKER

OUTPUTS

AM/FM

INPUTS

PHONO

& GROUND

SPEAKER

OUTPUTS

REI\,4OTE

EXPANSION

FOR

FUTURE

USE

AI\,4/FM

INPUTS

o 6 ' o o 6'e-elJ16ro

,1,,R'9Pgpgpgl.F SMEA

MP€MT

SYStrSAS33

M]NMUM

SYSEMANDO6MtrMUil

AUDIO

CONNECTIONS

Fig.3 Turntable

(w/MM

cartridge)

Cassette

Deck

VCR

, ,

Surround

Sound

processor

(wnrcn

does.

not have

a master

volume

control.

Kear

channel

amplifier

and

speaker

connections

not

shown)

0u";po1 l--r_

| | yooo@

0 trtrtrtrEffi

ll i-l '*rl

U trtrtrtrtrtr

t+l++ttt+l

trtrtr

C{R\m.""rc Horos,aphy

A/v

aeceive,

HR-742

9_ 9 _9 9 o ".,@.

".,q .:@,

PNoNES sptrE's ffi H.L*FAM *;*

TB.BLE

* " -"8 -**E nsLA , ry cov vcq ,.\.or D,o LF,o r

ITI

w;T:4 ll r-r,-rr.

".€.:

" I : **, i_titij,5j_:i

i:i,yl]s'_ ffi

Second

Set

Smaller

Bookshelf

Speakers

"T"

Dipole

AM Loop HR-732 Receiver

AM Antennahook-up.

The

AM loop antenna

provided will provide good AM reception

in most

areas. Position

the

antenna

for best

sound. It

may also

be wall-mounted

with the

supplied

bracket.

$-v_vord

(actually

lots

of words)

about

antennas

We suggest you start with the dipole included

with your receiver.

It's

designed

to work well in

many different places

and situations

and will get

you started

enjoying FM right away,

before

set-

tling on another

antenna

system

or commercial

cable. Professional

installers

we've

talked

to ob-

serve

that at least

7 5o/o

of all receivers

have

dipole

attached

and

the owner's

are

quite

satis-

fied.

However,

under

certain

circumstances,

vou

may

need

a different

kind of antenna.

Because

even

the finest

receiver

tuning section

can,t

much if it doesn't

get

strong,

clean

signal.

you live

to a

city in a suburban

area,

chances

are

good

you can skip

this part. But

you're

in a rural

area,

the

heart

of a

city where

you're surrounded

by tall, steel-frame

buildings,

or want to receive

extremely

distant stations,

simple

dipole

antenna

llt<e

the

one provided

with your HR-732/HR-742might

not be

suffi-

cient,

even

with the magic

of ACCD.

In general,

the higher your antenna is, the bet-

ter it will perform, since radio waves

travel in a

straight line. A properly positioned directional

antenna

minimizes

background

hiss

and is

less

likely to pick up multipath distortion and noise

from car ignitions. Conversely,

a non-directional

dipole

isn't very

directional

and

cannot

be easily

repositioned

One possibility

powered

indoor antenna.

Some new designs

have gain boosting circuitry

and adjustable

directivity, housed

in an attraclive

package.

Check

with your dealer.

When mounted and connected

properly, a di-

rectional outdoor FM antenna can

provide the

best

signal

of all, with the lowest

interference

and

noise

factor. But you have

to do it right (see

the

warnings

and

information at

the

beginning

this manual). Indeed,

the only disadvantage

outdoor

antennas

the

cost of the

antenna,

mounting hardware,

and a rotator if you want to

point these

highly directional

antennas

sta-

tions

that may

be in opposite

directions.

But

when properly

installed,

outdoor

antenna

can, in most

areas pull in an incredible

number

stations

for the HR-732lHR-742's

ACCD proces-

sor

to clean

up. Which antenna type is

best for

you depends

on your FM

listening

habits

and,

course, your location. Consult with your Carver

dealer for

antenna

information.

Feedlines

are also

an important part

of getting

good

reception

from an outdoor

antenna.

the link from your antenna to your HR-7321

HR-742

is poor, you'll cancel

any advantage

from

its

height

signal gain.

There

are two basic

types

of feedlines.

300-

ohm twinlead

inexpensive,

and

if conditions

are right and it is properly

installed,

signal

losses

are reasonable.

However,

if the twinlead

isn't

in-

stalled

right,

it can

act as its

own antenna,

degrading

the performance

of the HR-7321

HR-742

by picking up extra unwanted signals

and interference

noise. Twinlead requires

careful

routing

and

must

be insulated

with

special

"stand-offs"

from everything

made

of metal,

gutters,

other wires,

etc. Compared

to average

twinlead,

75-ohm

coaxial

cable is

expensive

and a bit harder

for signals

to get

through, but

has real

advantages,

too. It won't pick

up extra

noise

and interference

because

it's

shielded.

Also,

you don't have

to be

as careful

about routing, so

installing

75-ohm

much easier.

CATVinput

This label is potentially confusing, since it's re-

ally just another FM antenna input intended for

connection to cable

boxes that have FM outputs.

cAw INPUT

FOR FM

ONrY

NOTVIDEO

DO NOT

use this input

as a VCR

con nectbn. Connectinq

the

video

portbn

yourVCRtoihe

HR-.32/HR-

742

should be mode

using RCAtype

cords

ond the composite video

inputs

ma*edVCRVIDEO

lN.

TV & CDV (IN): One-way audio/video

connections

(If you loathe TV or only have

a S-inch set in

your spare bathroom, you can skip this section

and go

directly

to page

14. Otherwise...)

The

HR-732lHR-742

enables

you to connect

and select from multiple video sources including

combi Laser

players

and stereo TV's, with or

without video outputs.

A "video source" is

defined as

ofie having com-

posite

video

cable

plus

left

and right stereo audio

cables.

Thus both the TV and CDV video inputs

have

THREE

sockets each,

two for audio towards

the left hand side of the back

panel, and and one

for composite video towards

the right side.

What's

composite?

A "composite" video out-

put will have

an RCA phono-type socket

(like the

ones used for audio connections

but with a

differ-

ent-colored plastic

center),

rather

than a 75-ohm

coax connection which sticks out and has screw

threads on it. All VCR,

CDV,

"combi" and

LaserDisc

players

have

composite video outputs.

VCR:

Two-way audio/video connection

Note that your receiver's

VCR

connections in-

clude both audio IN & OUT and video IN & OUT.

This allows

you to record

from another video in-

put routed through the receiver

to your VCR. It

also

enables you to use a VHS

Hi-Fi VCR

as a high

quality audio recording device.

Considering your audio/video options

First, you should have

a clear idea what it is

you want to do with theHR-732lHR-742's

video

features.

.We

included

video

connections

for two maior

reasons. First,

so you can have Home Video

Theater

sound when you watch VCR

movies.

Second,

you can

easily switch video sources

us-

ing the HR-732iHR-742's

remote

and also copy

between

two video sources, for example,

VCR

and a LaserDisc,

or two VCR's.

What follows are a series

of connections

which

give

you different audio/video options. We often

get

calls

from new Carver owners

who ask

"Well,

which is really RIGHT?". That completely de-

pends

on what kind of video equipment you own

and just how closely you intend to integrate

things. Look through the hook ups once

and see

which pertain to you.

A/V hook-up 1: R* for better movie sound

Can

be used if you have:

t A VCR

or other stereo video source

I A non-stereo

TV that lacks

composite

video inputs

By routing video soundtracks

through your

main speakers

(or another set hooked to the

HR-732/HR-742's

speaker

outputs), you can

dramatically enhance

the sonic impact of video-

cassette

or LaserDisc

movies

and concerts.

Although this wasn't always the case, video

sound

from current model VHS

Hi-Fi VCR's

now as

good or better than most audio sources.

Virfually all newer

movie releases

on tape are

VHS

Hi-Fi stereo which has

excellent

dynamic

range, wide frequency

response

and low noise.

. .

And if you own a LaserDisc

player

with digital

soundtrack

capabilities, you have

great

oppor-

tunity to create a home video theater.

In any of these

cases,

you're

simply

treating

the video sound source like another HR-732.

HR-742

stereo

audio input.

Television/Monitor

(back

view)

VI-IFOUT

i iir N

VCR

HR-742

Receiver

NOTE:

If your video

sound

source

mono

(y_ou'll

see

just

one

socket

most

likely

labeled

AUDIO

OUT),

add

a,,y-splitter,,,

aviilable

from

many audio

dealers

or radio

supply

stores.

R/V hookup 2:.Switching

and copying

betwe€n two video sources

Should

used

ifyou have:

I Two VCR's

one

VCR

and

a LaserDisc

Player

I A non-stereo

you have

two VCR,s

or other combination of

video

playback

gear,

connect

them as

shown

be_

Iow. Note

that the

VCR

connected

to VCR

will be

the target

deck

for recording

and the one plugged

into TV

or CDV

will be

the

source.

I A stereo

TV with audio/video

outDuts

This

a variation

of the

last

hookub. We

in_

clude

it because

even

really

killer

direci_view

and

big-screen

TV's

have

speakers

that are

rarely

up to

par

with your main stereo

speaker

system.

An^d

there's

no reason

why youriavorite'sitcom or

soap

can't also

benefit

irom ,,big,,

so,rna

tt rough

your loudspeakers.

Besides,

moie and more

pro_

grams

are

being broadcast

in MTS

stereo,

which

has pretty

decent

audio

specifications

_ at

least

no worse

than those

of most

prerecorded

cassettes.

- If you have

a stereo

TV or remote

control cable

box

with audio

OUTputs,

you

can

treat,.21m

Droadcast

television

audio/video

inp-ut

and

switch

it through

the

HR_732iHR_742.

The

t.V

cable

box "tunes"

the

station,

sends

the

sound

the

receiver

and

then to your

main,

better_sound_

ing

stereo

loudspeakers.

_ - ]I yg" have

-"stereo-ready,,

TV but an older

VCR

that lacks

an MTS

stereo

tuner, this connec_

tion has

another

benefit: you can

record

onto

the

VCR

using

your

TV as

the

source.

VCR 1CDV

(Source

for Dubbing)

OUT IN

Adb Vda Audb Vd@

a€:'l .r8:

Jt il-- +

-1

Itlllt

oll

o @ll

kk p,'

Receiver

Television/Monitor

(back

view)

A/V hookup 3: Better sound from TV

progmms

Can

used

if you have:

One

VCR

or other

video

source

Television/Monitor

(back

view)

A/V hookup 4: Takingthis wholethingone

step farther

Can be used if you have:

I One VCR

or other video source

I A stereo

TV with audio INputs

This hookup allows

you to take advantage of

the speakers in the TV as

well as

your larger main

stereo speakers. Assuming

you only have one

VCR, it will provide you with even better movie

sound,

since the TV speakers

provide dialog

centering.

Television/Monitor

(back

view)

A/V hookup 5: Using a VHS Hi-Fi VCR as a

recorder.

VHS Hi-Fi is capable of extremely high quality

AUDIO recording.

You can

get

the

equivalent of

four C-90 cassettes

worth of music on a single

T-72O videotape

- and with specifications that

rival professional

tape machines: Typical VHS

Hi-Fi

specs are20Hz-2O kHz +0.1 dB, 90

dB dy-

namic range

and 90 dB signal-to-noise.

Just

make

sure to use a

premium videocassette tape

type,

don't record

on the first two minutes of the tape

where drop-outs

are

most prevalent

and NEVER

let the VCR's audio level meters

exceed 0.

The following hookup may not be one

you'll

want to make permanent,

but since transfer of

records

to VHS Hi-Fi is

often a one-time

"archiving" process,

reconnection is

worth the

trouble for an occasional session.

TAPE MONITOR: A two-way audio loop

connection

As we explained earlier,

tape

hook ups are two-

way connections. A signal to be taped

goes

out of

the HR-732/HR-742

to the cassette deck; a signal

returns

to the HR-732/HR-742whenyou press

the deck's

PLAY

button. As

you'll soon see, this

loop can

beget

its own loops for signal

processing

equipment, too.

Here's the connection for a cassette deck.

Cassette Deck

&3:;b

*m3ffi.

Receiver

IF YOU

HAVE TWO

CASSETTE DECKS

but

no VCR,

you

can use the VCR oudio

inputs

ond outputs os o second tape

monitorloop.

Adding sound enhancement components

There

are all sorts of "black

boxes"

which you

can

add to your system. These include equalizers,

dlmamic

expanders,

noise

reduction units and

multi-function units such as surround sound

decoders

and special equalization boxes which

are required with some speaker systems.

Any time the HR-7

IHR-7

42's TAPE

MONI-

TOR

button is

pressed,

the sound from any signal

c'@@s

cw#p

irir ,r ai:

Receiver

sSH.=@Ag@

*r"'GR v(F MoNl

_source

will be

affected

by the signal

processor.

Yet

you can still record

d"a pfui Ui.i -i-tf, tn"

cassette

deck.

The PRE-MAINloop (HR_742

only)

Your

receiver

really

three

compbnents

::_"' ,f,lll"r, a

preamplifier

and

u pore, ampli_

ner. we've

provided

way

to sepaiate

the

ff::11l gq_pow:r

amp

sections-.

Traditionally,

rnls

nas

been

used

to ,,upgrade,,

system,s

power

outputby adding

la_rger,

separate

power

ampli_

fier

such

our

rpv-25

"i rt'v_+s-.

ii;;;;"

Hl::l[119ry1wiilr,

the

HR742,stu"6,

*o pr._

ampttller

tunctions,

but

want

mega_power,

this

super

way

further

enhance

yduriystem,

now

a later

date.

Remember

ttrit

ttre

irne

OUTputs

are

affected

the

UR_Z+Z;,

"oLm"

control.

Receiver

. Th9 hookup above

turns the HR_742into

tuner/preamplifier

and

doesn,t

use

the

receiver,s

amplifier section

at all. Howe"e., if vo, uai u

Dolby Surround

Sound

unit that do6sn;t

tiive its

own built-in amplifier,

you can

make

use

of the

raK-

+z'

amp

to drive

two of the

four surround

sound

channels.

Speakerconnections

Your

Carver

HR-232/HR

_742hastwo

sets

speaker

outputs

on its

back

panel. yo, _av.on_

,1::,t

tyg,puirs

speakers*

and

play

eirher

Dotn

ot them at

the

same

time using

the

SpEAK_

ERS

A & SPEAKERS

buttons

on th;fr;;i panet.

Use

thick wire

for speaker

connections.

your

Carver

dealer

can

recommend

brand

of high

quality,

oxygen-free

speaker

caUte.

Oicorr-o.

zrp

cord" trom a

hardware

store

can

em_

ployed if care

taken to use

heavy

"rrougl,

$3lg_"^ ^I!1 will depend

on the disiance

frtm the

HR-732/HR

-7

to your speakers.

Ure

lt e folo*_

ing chart

guidei

WIRE

LENGTH GAUGE

ZIP

CORD

J]n

rt l8 gauge

ft l6 fauge

ft l4 gauge

, " "Y] :.^,H:f

qess

sRecification

or,,gauges,,

get

rarger

the

wire

gets

thinner:

Thus16_!auge

wire

thicker

than

22_gaug"

*ir"- ih. ii"l,.,

the

distance

berween

y5.,rftn_z:i Er*Tii u"a

speakers,

the

larger

the

diameter

the

wire

shoutd

be.

Use

the

same-length

of speaker

wire

for both

speaKers/

even

if one

closer

to the

receiver

than

theother. Coil up the

excess

and

make

sure

it,s

wel away

from the

HR_732/HR_742turntable

inputs.

Polarity.

It is

important to make

sure

that both speakers

connected

to the

A or B

terminals

are

hook?d

the same

way:

7 tt-" at

the

HR-23

2lHR-Tl}speaker

out_

puts

to "-,, on the

speaker

bick, and

,,+,,

the

HR-732lHR_742

speaker

outputs

^ to

"+"

the

speaker

back...and...

z) Left

HR-732lHR-742

speaker

outputs

left

sp.eaker

inputs,

anil right HRi3ti-

r-rn-

speaker

outputs

to right speaker

inputs.

See

Poge

*Speaker

im@ances

While

the

HR-732/HR-742

copobte

high.cunent

output

into

momentory

low-impedances,

not

recommend

ploying

two sets

4_ohm

speakes

simultoneously

ot hiah

volumes

(see

"Afufthei

notedbout

impedonces"

forther

in this

section).

O. f courye,

you

con

certointy

hook

wo,p"iry

1.ohm

speaken

ond piay

eoch

poir

indMdually.

you,re

not

sure

the

Roted

Nominal

lmpedonce

your

speoken,

consult

the

owner,s

monual

which

comewith

the

speokers,

call

the

manufacturer

yoir deoler.

Wire.

If you're using special

speaker interconnects,

+" and"-" will be identified. If you're using

plain appliance-type

zip cord, the two conductors

will be

differentiated in one of several ways. They

may be different colors

(silver

vs.

copper). One

may have fine grooves

on its outside. Or one

may have

piece"of

yarn included in one of the

conductors (visible

after you strip off the insula-

tion). It doesn't matter which one you decide to

call

+" or "

-" , just be consistant

on both speak-

ers.

Speakerhookup

The

HR-742

speaker

terminals

are designed

bare

wire, spade lugs

or banana

plugs. The

HR-732's

speaker terminals are intended only for

bare wire.

1. If you're

using

bare wire,

strip 712" of

insulation from each wire and make

sure to carefully

twist all the fine strands

together. If even one is loose

and can

touch the opposite

terminal, a short

circuit may result.

2. Unscrew each HR-742

speaker

terminal

and insert

the wire as shown until the

insulation

ig close to the hole

press

the release lever

on the HR-732

speaker

terminal and insert

the wire into the

center hole, making sure that the wire's

insulation does not prevent electrical

contact with its conductior.

Tighten theHR-742 connection or re-

lease

the HR-732

speaker

terminal lever.

After you've hooked up one or two sets

of speakers,

double-check your

connections.

Speaker

System

titl

[56"'6d

SPEAXEF MPEDANCE

SYSTEM

AOR B

8 M]N

MUM

SYSTEMAANDEl6

MINMUM

Q,@ @.Q

--fsYsrEr"rEl-f-

HR-742

Receiver

L]NE N{o'ol

Speaker

System

HR-732

Receiver

Speaker

System B

Convenience

outlets

We cover

these last

because

we don,t want to

encourage

yoy to plug anything in or turn any-

thing on until all other connections

have

been

made.

. There

are

two AC outlets on the back

of vour

Carver

HR-732/HR-742.

The

one marked '

SWITCHED

provides

power

only when the

HR-732/HR-742is

turned

on and is

useful

for

components which you use every

time you play

your system

such

an equalizer,

speaker

equal-

ization box, etc.

or your most-used

sound source

- a CD player,

for example.

HR-732/HR-742spitched

outlet warning

Do not plug

power

amplifier

into

the

H R- 7

3 2

/ H R-

7 4 2's

switched

outlet.

Make

sure

thot total

power

consumptbn

any other

components

plugged

into this

outlet

does not

exceed

| 00 wotts.

An UNSWITCHED

AC outlet is

also provided.

It's

always

live

as long as the HR-732lip,-Z+Zis

plugged

into the wall. A device

connected

here

may be left permanently on, or may be switched

off with its own switch. NOTE: In orderto avoid

potential turn-on thumps, anything plugged

here

should

powered

up BEFORE

the

HR-732l

HR-742

is turned

on.

The

nal obvious

connection

You guessed

it. After making sure

that the HR-

732lHR-742

off, plug its power cord into a

properly polarized

wall receptacle (see

Safety

In-

structions

and

18atthebeginningof

this

manual). The

HR-732lHR-742

may

be connected

to an extension

cord or multiple outlet plug, pro-

vided they have

the proper

polarization (one

wider and one narrower prong). If you are

using

an extension

cord, we recommend 16 gauge

heavier.

fu rther

note

abut speaker

impedances

(extra

infoimation

for

thosewho hdve

multiple

speaker

qystemt

to play

loird

music

with

lots

of bass

in it'orjust like

to read

owne/s manuals)

Why do we publish specifications

for ,,2-ohm

dynamic power" and then warn you about

not

using two sets

of 4-ohm speakers

at the same

time? Because

impedance

has

several

variables

and becomes

a factor at different times.

Speakers

are not simply resistive

loads. Instead

they are

complex and reactive,

drawing dispro-

portionately large

currents

in reaction

transient voltage

signals.

Because

music is

dy-

namic, with multiple instantaneous

peak

power

demands,

the speaker

constantly bbmbarded

with short transient voltage

drive signals

and

constantly drawing short "in-rush" currents. The

overall long-termvoltage

and power draws

are not

significantly higher than those

of a resistive

load.

But at any given moment, short terrn peak

cur-

rents

must be

delivered

far in excess

of the

average,demands.

If these

cannot be supplied

an amplifier, distortion and reduced

dynamic

range

result. Impedance

is a

complex product of

factors

such

as resistance,

inductive reactance

and capacitive

reactance.

Realistically,

it,s

rating of how the speaker

will behave when con-

nected

to an amplifier and playing music. The

lower the impedance,

the more amplifier current

will be required.

Modern speaker

systems

most often have

NOMINAL impedance

ratings

of 4, 6,

or 8

ohms.

This rating can be found in your speaker

hand-

book, is

often printed on the backof the

loudspeaker

and can also

be found in Audio

Magazine's

Annual Equipment

Directory.

The

HR-732lHR-742

designed

for

CONTINUOUS

use with 4-ohm or 8-ohm speaker

impedances.

If you're

just

using

one

set of ipeak-

ers,

there's

no problem - virtually anything you

connect

to the

HR-732/HR-742willhave

a nomi_

HR-732/HR-742

unsryitched

outlet warning

lf you're

using

o seporote

power

amplifierto

drive

sunound

sound

speakers,

a subwnfer

conjunctbn

with

the HR-732/HR-742's

PRE

OUT

connectbn,

take care

when plugging

stuff into

the HR-7

R-742's

N-

switched

outlet. The power

ratingfor

this

outlet is 1

00 wotts. Consult

the

power

amplifier's

owners

monuol

determine

its

overall

power

consumption

if in

doubt.

Speaker Pair

ASpeaker

Pair

BGombined

lmpedance 0K or

not

nal impedance

of 4,

6, or 8 ohms. But

if you're

connecting TWO sets of speakers,

the impedance

of both sets becomes important - and

interactive.

Total impedance

(Z)

of such a system is calcu-

lated with the following formula:

7-= Z.XZ,

Zr+

Where Z, andZ, arethe individual impedances

of the two speaker-rystems. That leads

to the

following chart:

Simultaneous

speaker opelation

And yet its published "Nominal

Impedance" is

ohms! Obviously, 6 ohms is

an optimistic

average, NOT a

qonstant.

Note also

that this popular, widely-distributed

speaker

takes its most serious impedance plunge

in the lowest

frequencies where

the most power

is required from a receiver's

amplifier section.

This

design's

perilous

50 Hz

and 100 Hz dips

correspond with many musical

instruments

including kick drums, floor tom drums, tympani,

plucked double bass viols and electric bass

gui-

tars. You can imagine how an amplifier is

taxed

on a well-recorded

CD at realistic listening levels

with this speaker.

In addition, because music has

wide and

constantly varying frequency

distribution (and

listeners

have wildly different views

on where

set bass and loudness

controls),

problems

stem-

ming from intermittantly low speaker

impedances

can crop up unexpectedly.

Whether anything unpleasant happens

when

a speaker's impedance

dips into the 2-ohm

range

during a song depends

on the amplifier design

particularly its ability to produce

large

amounts

of current for short periods

of time into low im-

pedances.

We have

designed the HR-732

and

HR-742

to satisfy such momentary power de-

mands

and the receivers'

"2-ohm dynamic

power" rating reflects

this ability. Still, it doesn't

mean

you should operate the receiver into a con-

stant 2-ohm load.

Following a short section

on the HR-7321

HR-742's remote control and a

guided

tour of the

receiver's

front panel

features, you'll be

ready

start enjoying your new component.

3.4

2.7

Maybe0K-

Maybe0K.

.lf

you

don't

play

the

speaker systems too loudly

the

same

time

As you can see, two sets

of B-ohm speakers in

parallel

represents

a 4-ohm total load,

well within

the operating parameters

of your HR-7321

HR-742. However,

two sets

of 4-ohm speakers is

2-ohm load and is not recommended. All of this

predicated

on operating both sets of speakers

AT ONCE. If you never intend to operate tlvo

pair at the same time, both pair can be

4 ohms

nominal impedance.

Now what about "2-ohm dynamic power"?

First, it's important to understand that

NOMINAL is

a fancy way of saying

"sort of".

While a speaker is nominally rated

at a single im-

pedance,

it usually varies widely over the entire

frequenry range. Shown below is

popular

3-way loudspeaker's

true impedance

curve. Note

that it varies

almost 10

ohms across the 20 Hz to

20,000 Hz musical spectrum.

8 ohnrs

ohnrr

ohnrs

I'a

Remote

control

Batteries

The HR-

732

HR_7

42'

wireless

infrared remote

requires

two AAA

batteries

lttre

eensy

wiensy,

cylindrical

ones

one

size

smalleitt "i, aatl.

Remov^e

the battery

compartment door on the

back

of the remote contrbt Uy

ifid"Jiip"arattet to

the

surface

of the

remote. Iniert the'batieries

]igpl,^"9:.1-aking

sure

match

the

posiiive

1+l

ano.negative

(_) ends

with the

diagram

inside

the

battery

compartment.

Remote Operation

The remote control unit will work in a

range

approximately 20 feet

in front of and iLout :O

degrees

to either

side

of the un_)iiii_|+2.

If the remote control begins

to oliisionaffy

Lo,l9;no"g, 1)

check

its

batteries;

mike sure

ure

lnrrareo

proiection.a_r_ea

on its

tip is

clean;

check

that

t6e

un-zszlun

z+z'iiii{ri;;;;o..

sensor

square (on

the

front panel)

not dirty or

blo_cked

from direct tine_or_iighi

{"iir, it J."_o,..

If you choose

not to use

th"e

HR_732lIld

_742,s

:.q9t",but put the

batteries

in it anvrniv

iust to

l?_i._""t once,

remove

them to pr*;;iiJrroston

oamage

and leaking

(AAA

cells

are

not

housebroken

Two

controls

that are

specific

to the remote

MUTE

The

remote,s

MUTE

function

not

duplicated

the

HR-732lHR_742

frontpu".f.-

*t!"" a"_

pressed,

the

MUTE

button

reduces

tfre

ieieirrer,,

master

volume

level

9.8.

nressing

iiigui"

restores

the

sound

tevel.

STANDBY

HR-732/HR-742

unless

the

main front

panel

power

switch

also

on.

I jfJojlg gotng on vacation

or use

your

HR-

732lHR

onty

o..urionuirvl

Li"

il,"ftH:tt

"sing

the

main

powEfi

_- STANDBy

sort

of second

ON/OFF

switch.

If y.ou

turn off the receivervia

,.-ot" .l.ri.of,

STANDBY

shuts

off virtuatty att

oiit . iJ."i"., ."_

cept

the

remote

sensor

circuitry. Then

whln you

want to turn the

HR_732/HR_l+2bacioi,

it.u.,

sense

the

infrared

command

u"O

potv", "p tt.

rest

the

receiver.

general:

I JfJgt'lqgging

bi operating

the

R-

732l

remote

co--n

trol,

turn the

main front panel

pOWER

button on and

leavelt

on.

I fl.1. during

normal

use,

turn

the

HR-732/HR

sz oft

witn

tt " -sieNnev

button and

on with one

of tfre

iemo-te"'

control,s

FIINCTION

buttons

Gucn

fIO-ryO,CD, VCR,

etc.). \v.^lrr

I Ng-e_d]ess

to say,

the remote control

FUNCTION

button will not lui"-r" tfr.

20 Feet

HR-732/HR-742

features

and

functions

It's time for a short guided tour of the HR-732

andHR-742's

controls and features.

If you,re

eager

to listen instead

of read,

skip to the next

section

starting on page

25 andread

this part

later.

1.. DISPLAY

PANEL. Here's

where

the

HR-732/HR-742informs

you of its

func-

tions and tuning information.

A. SIGNAL

STRENGTH

METER.

This

S-segment

bar display

indicates

the

relative

strength of an incoming

station signal. In most areas,

local

stations

will light at least

three seg-

ments. If they don't, you may need

a better

antenna.

B. STANDBY.

Indicates

that the receiver

is in "dormant" standby

mode.

C. TAPE

MONITOR. Lighis

when

TAPE

source

is pressed.

D. VIDEO INPUTS (TV,

CDV, VCR)

E. Various

tuner status indicators.

F. Wake-up

Mode indicator and, ON

THE

HR-7 42 ONLY, sleep

timer in-

dicator

G. SOURCE/FREQUENCYDISPLAY.

Shows which external

audio source

has

been

selected

(PHONO

or CD)

or the frequency

of the AM or FM

station if TUNER

has

been

selected.

H. STATION

PRESET.

Displays

the

number of the AM or FM station

preset

currently

in use.

2. STATIONPRESETbuttons.

Labeled

to 9 plus 0, these

buttons are

used

program andselect

up to thirty FM or

AM stations

(depending

on whether the

AM or FM button is pressed).

The but-

tons are used

like a calculator

keypad:

For

example,

to select preset

28,you

press

2 and then an 8. Station presets

are

also

selectable

from the HR-7321

HR-7 42's

remote

control.

3.&4. ONCE

and DAILY timer options are

also

selected

using the first two station

preset

buttons. See

page

28 forfurther

explanation of this function.

5. FREQUENCY/PRESETdetermines

whether the numbered bank of buttons

will select

a station preset

or be used

for

direct entry of a station frequency.

6. MEMOry is used

in conjunction

with

the other numbered buttons to

"program" station presets.

7. CLEAR

(also

the 0 preset

button) stops

autoscanning

or preset

scanning. More

on this

later....

8. PRESET

SCAN plays

S-second

sample

of each

tuned preset. It keeps

doing fhis

until you push the CLEAR

button. Then

the tuner remains

on whatever

station

was playing when you pressed

clear.

9. WAKE UP. If you have

an external

timer, you can

use

your receiver

as a

gi-

gantic clock radio. Normally, the

receiver

"forgets" volume and source

status when it's turned off from an ex-

ternal switch (so

you don't get

blasted

INPUT

SELECTOR

CD TAPE

MONITOR

ooo TVA/ID

1 CDVAr'ID

2 VCR/VID

ooo AM MODE SLEEP

ooooo

CAFVER rln,"

"o,onraphy

A/V

Receiver

HR-742

VTSUAL

>TV CDV VCR ruNERAUro

srEREo

@@@

so u N D

f_ryt3t;?t$

ful

f$ l#

t AUDIO/VIDEOJ -TUNEBMODEJ

ffi

HOLOGRAM

out of the room when you furn it back

on).

But

when

WAKE

itp

i, pi.rr.ilrn"

receiver,,remembers,,

rot'rr.d

irrloiilation

when turned off.

That way, when an external

timer (like

the kindoften used

t. t i" ii"iil, ""

and

off)

turns

tne

Un_jsi?r'ntz+2,

the

receiver

will be

set

on th-eI;;*"

soun{

source

(such

eVit"tir""'

preset).

10.

VOLUME

CONTROL.

This

the

mas_

ter

volume

control

fo, you.

sysi"*' f, r,

motorized

that

it actually

iotui"i '

when

VOLUME

o. Do-ilrN"i;p'."rr"o

the

HR-732/HR _7

remote."6.

".,

attempt

to manually

impede

lts

rotation

if someone

etse

is,adl

ust-i'nf

ih;"r;t#"

remote

control.

11.

POWER.

This

the

HR_73

2/HR_742,s

main

ON/OFF

switch.

It ahd

ili".trit "

SWITCHED

convenienc"

;;";;;;1" ;"

the

back

the

unit. The

Hti_%;)" "'

!\1a] employs

electronii

i"'iuu

mure

the

main

soeaker

and

headpfione

gllip".T

during

tLrn_on

and

turn_off.

nls

etrmrnates

Ioud

transients

which

co_uld

damage

speakeruy;-il.'i;;'

receiver,s

muting

system

*itt turr,

oif

the

signal

t_o

youi

qpeakers

. ilf;;"

about

to 5

secondls

after

initijplwer_

on,

whether

the

front

panel

p6*"i'

lyit_ch or from the HR_7

3i/-' -1

,-v

L'

HI-7!Z remote;

Z; immeJiately

turn_

o-ff,^whether

the

power

switifr

oiUy'

external

switches.

12.

HEADPIION!

iack. AIt

conventionat

oynamic

headphones

may

plrgg;;

in here. Headphone

impedances

fr.om

few

ohms

to several

thousand

ohms

can

accomodut"O,

uitt "rgil

output level

may vary dependi;;;;l_-

pedance.

Headphones

shoulct

unplugged

from

the HR_7

32/HR_

+zwnen not beins

used

to avoid risk of aamagelt ,i_,'"r?,

high volume settmgs.

13.

INPUTSELECTORS.

These

buttons

se_

lect an audio or "io"o ,oui.". No;'iH,

theyare

all,,external"

ril;; iilil;

you

must

hook

component

to the

cor_

responding

rear

inputi before

you;is'"

ggj-ng

to hear

see

anythi"gf

,"r..rt

ryry$ pressing

ruNiii;;j:G,;I'

HR-

232lHR

42Ys

i"t.."ur piurTerui"

tuning section.

Input source

names

are

also

shown in

th,e

R-

732l

HR_7

42,

sdi;pt;y ;;;;i :

all

except

TUNER,

which'OiJpiavi

the

I:gy.l.y of

the

station

.rri!"tiv "''

selected.

14.

A-B

SPEAKER

selectors.

Selects

the

pair

speakers

you

intend

iiit"n to.

you

have

connected

t*o pii, LiS_'"

ohm

speakers,

you

can

play

eitnlilr

both

the

same

time.

if o;e oirnJi. or

the

speaker.systems

rru,

i io*#,^r_,#]sl'

:nm.qnpe_dance

(see

page

15),

you

should

only

select

B",

Uuf

i,irifotr,

the

same

time.

I_AUDIO/VIDEOJ I-TUNER MODE -

CAR\trR.J","

Holography

A/V

Receiv

er HR_742

.to*ou"r

."r'uro

@.o". "o",ro,

.ffi

fi{il

SENSOR r ; 45

VISUAL

>TV CDV VCR TU

##-ffi

souND

##### #fd#l#*

"-.

SPEAKERS oo

IAEED HoLoGRAM

ker mftchin gat

high levels

Avoid

using

the HR-732/HR-742's

A-B

speoker

selectorwhen

ploying

the

receiver

at high

volumes.

15. FM

A.C.C.D.

The

Carver

Asymmetrical

Charge-Coupled

Detector

a pat-

ented

circuit incorporated into the

HR-732/HR-742.

Because

stereo

transmission

inherently prone to

multipath interference,

even

the most

"advanced"

conventional tuner cir-

cuitry is

forced

to deal

with a potentially

flawed signal. Carver

ACCD Tuner Cir-

cuitry is

capable

transforming a

multipath-ridden FM stationlnto a

clean,

clear

signal

with accurate

fre-

quency response,

wide dynamics and

ambient

stereo

information.. .even

when a high portion of the t-R (stereo)

signal

being

ravaged

multipath.

16. SONIC

HOLOGRAM activates

the

HR-

732lHR

-7

42'

Sonic

Hologram

Generator. Sonic

Holographltr can

restore

the

3-dimensionality

of a live

performance

rough

psychoacoustic

signal

cancellation and time delay

cir-

cuitry. lt works

with any

stereo

source

including CDs,

records,

tapes,

stereo

videotapes

and laser

discs.-

17. TTINER

MODE. These

select

between

cable

TV-derived

FM, FM from an exter-

nal antenna,

AM.

18. MODE. This button works when FM

has

been

selected.

When AUTO is

on in

the display,

stations

which broadcast

stereo

will be

received

in stereo

except

when their signal

extremely

weakbr

grrbled. Then the tuner automatically

"forces"

the station into mono. Wheri

AUTO is

off, all FM stations

will be re-

ceived

in mono regardless

of whether

they're

really stereo.

This is

handly for

stations

with more

interference

than

even

Carver

ACCD circuitry can

handle.

Speaker placement

for

Sonic

Holographry is

critkal

For

moximum

effect,

the

HR-732/

HR-742's

Sonic

Hologrophrf

sannd

prxessing

system

requires

coreful

plocement

your

speakers.

please

con

su lt the

so N I

c H

o LoG

RAP

Hyc.

section

beginningon

pge 29 of this

monuol

before

experimenting

with

the

HOLOGMM

button.

TUNING/SCAN

300o

30-Preset

Asymmetrical

Charge-Coupled

Detector

Tuner

rUNER

MODE

19. SLEEP (HP.-742

ONty). This

button

programs

the receiver

to shut off at a

later

time. Each

time the

button is

pressed,

the

amout

of time before

the

re_

ceiver

automatically turns itself off is

increased

by 10

minutes

up to 50

min_

utes

and

then by 3O-minu[e

increments

trom 60

to l2O

minutes. This

sounds

complicated,

but we

explain

its

function

extensively

in the

next section.

20. TTINING/SCAN (Up/DOwN). These

two buttons "behave"

differentlv, de_

pending

on whether

you

) iusitao

them,2)hold

them

dbwn

momeniarilv

and

then

let

3) hold

them

down

continuously. When the

FREeUENCy/

PRESET

button is

in pRESET

position,

here's

how TUNING/SCAN

behaves:'

A. MANUAL TTINING . Tap and imme_

diately

release

either

or DOhfN

(TUNING/SCAN)

and

they

work just

a good

ole

tuning knob. The'tuner

simply

steps

up (or

down)

the FM

band

in 0.1

Mhz increments.

If there

station

at,

say,88.7,

you

will hear

only

inter-station

hiss

(which

great

tesf

slgnal

source

for calibrating cassette

decks

wifh variable

bias

coitrols).

AUTOMATIC SCAN. press

either

or DO\tVN

a little longer (about

2 sec_

onds) and

then release

to invoke

AUTO

SCAN.

The

tuner

searches

up or

down

the

band

and

then stops

the

first

"strong"

station

it encouniers

(,,strong,,

a relative

term,

depending

on what

kind of reception

you get

iriyour area

and

what type

of antenna

ydu have).

Pushing

or DO\AIN

for at least

2 iec_

onds again

takes

you to the next strong

station. If, while in AUTO

mode,

vou -

tune

above

108.0,

auto-scanning

con_

tinues

the ,,bottom,,

of the

diil (97.5

)

and proceeds

back

up. Conversely,

you turn "down,,

below

g7.5,

scanning

continues

down from 109.0.

C. EXPRESS

MODE. If you reallvwant

to speed

up or down thedial, leave

ei_

ther UP

or DO\zVN

held down. After a

few

seconds,

the

tuner

goes

into suDer_

mondo fast

mode,

whiizing,throudh

the

AM or FM

band

at warp

speed

intil

you release

pressure

on the

button.

Then

the

tuner

goes

back

into AUTO_

MATIC

SCAN

mode,

stopping

the

first

strong

station.

D. ANOTHER

USE.

When the

FRE_

QUENCY/PRESETbutton

in pRESET

mode,

you can

select

preset

press_

ing

the

DO\ArN (Tuxtxc/scaNi

buttons. Press

once

to advance

one pre_

set;

hold it down to zip quickly through

them.

21. BASS

& TREBLE

tone controls. At

their

center

detent

position,

there

is no

ffi

ctvlODE

oSLEEP

IDE '

TUNING/SCAN

BALANCE

30-Preset

Asymmetrical

Charge-Coupled

Detector

Tuner

i*,#f

boost

or cut. Maximum rotation in ei-

ther

direction

produces

dB ofboost

or cut. The bass

tone control operates

from 1 kHz down, the treble from 1 kHz

on up.

22. BALANCE

CONTROL. Adiusts

the left/

right distribution

of sound

to your

speakers.

It is

useful when one

speaker

closer to your listening position

than

the other,

or with some poorly centered

recorded

material.

The

sweep of the

HR-732/HR-7

42's

BALANCE

control

intentionally not linear. That

is, small

movements

off center produce

smaller

shifts in the stereo image

per

degree

rotation than near

the extreme

left and

right positions.

This

makes

small

corrections

convenient.

If patience

has prevailed

and you have read

this whole section

BEFORE playing

with your

HR-732/HR-742,we

congratulate you. Now for

the fun part!

Enjoyng your

HR-732/

HR-742

If you have

experience

with serious

stereo

components,

you probably

won't need

to read

this section

- assuming,

of course,

that you've

read

the

section

(HR-732/HR

-7

Func-

tions

and Features).

But

for those

who only

change

stereo

systems

every decade

or so,

we've

included step-by-step

instructions for frequently-

used

functions. Don't be

embarrassed

to read

through them.

Ashorttestdrive

Because

theHR-732lHR-742

essentially

the

nerve

center of your stereo

system, lots of stuff

has

been connected

to it, in fact,

every other ste-

reo

component you own. So it's

good

idea

double-check

and confirm your work up to this

point.

1. Check

all connections,

first

to confirm

the correct

components are plugged

to the appropriate

HR-732lHR-7

42 in-

puts.

Then make

sure lefts

are

connected

to lefts,

etc. Finally,

double-

double-check your speaker connections.

2. Turn the HR-732/HR-742VOLUME

control

down to MIN.

3. Now turn on your system in the

following order:

Any components

not connected

the HR-7 32

HR-7

42' s

SWITCHED

outlets.

B. The HR-732/HR-742

(if this

is the first

time it's

been turned

on, use

the main

POWERbutton).

4. Select

CD or PHONO

(depending

what you've

connected)

using

the

receiver's

front panel

INPUT

SELECT

controls

or the remote

control.

5. Select

SPEAKERS A or B with the receiver

front panel

pushbuttons.

6. Press

PLAY

on the sound source

and

gently

turn up the HR-732/HR-742's

VOLUME. Chances

are,

vou'll hear

something.

Successl If the music

source

operating and you hear

silence,

turn

to the

section in this manual

called

"HELP!"

beginning

on page

35.

7 . Next, play your other sound sources

confirm that they're

hooked

properly.

8. Rotate

the

balance control

to the left

and see if the sound

moves in the

same

direction. If it seems

to move

the oppo-

site way, your speaker-to-HR-7321

HR-742

connections have

been

reversed

and

need

to be

switched.

If the HR-7321

HR-742

is part of a

completely new sys-

tem, you should

check

speaker

phasing

well. This

covered

in mostlpeakei

owner's

manuals.

If you don't want to store

station

preset, ("

Z Z

2...F

ast-Acting

Sedative

El-

euator

Music

for the

Sedentary')

press

the

UP/SCAN

button again

immediately.

When you've

preset

all the

AM stations

you wart, press

FM and follow steps

through 6 again.

Manual Preset

Selection

If you know exactly

which station

you want to

commit to a

preset,

have

a special

order,

want

to re-program

a preset (your favorite

punk polka

station

changed

formats

to elevator

music),

you

can

manually

tune and

program

presets.

1. Select

AM, FM

or CATV

(HR-742

onlv)

from

the

TUNER

MODE

buttons.

2. Press

the FREQENCY

PRESET

button if

necessary

to get

frequency

display.

3. Press

or DO\MN

until you,ve

found

the

desired

station.

4. Press

MEMO. The

MEMOTv

indicator

flashes

for about

5 seconds.

5. Press

the

appropriate

preset

button (s).

For

example,

if you

want to ,,title,,

that

station

Preset

24, press

the,'2,,

and

then

the

4" button. If you wish

to label

Preset

10, press

the "1" and

then the

uo,t.

6. Repeat

steps

through 5 for other pre-

sets.

NOTE:

If a station

was

already

entered

into a

given

preset,

it will be

erased

if you

choose

the

same preset

number

for a new

station.

Erasing

a Preset

1. Select

preset

number.

2. Press

MEMO and

CLEAR.

preset

will be

erased.

Entering ltGset Number

Sequences

select

preset

number

less

than I 0

(1 thru

9),

the fastest

woy is

press

"0" ond

then

the number,

for

ixomple

"05"

for preset

5. tf

you

don't,

the '

receMer

Wuses

forfive

seconds,

waiting

for

o second

number

be entered

before finolly

deciding

thot

you

onf

intended

to enter

sinale number.

Conversely, you

have

dbout

5 seconds

to enter

both

digits

a two

digit

code.

lf you

tory longer

betvveen

numben,

the

receiver

will

oct

only

the first

diqit

entered.

Tuning

an FM

orAM station.

Make

sure

that the appropriate

antenna

connected

to the

HR-732lHR-742.

Turn on the HR-7

HR-7

42.

Select

FM,

AM or CATV (HR-742

onlv)

from

the TUNER

MODE

buttons.

Advance

the HR-7

HR-7

42,svolume

control

about

714

of the way.

Either

press

TUNING and

then Up

DO\^rN,

or SCAN

and then Up or

DO\4rN

to tune a station.

Adjust

the

volume

and

make

any

other

adiustments

you

wish.

Setting

FM/AM

station presets.

Your

Carver

HR-732/HR

-7

42 canmemorize

and

recall

up to 30 FM

and

AM stations

in any

or-

der, i.e.

Preset

can be

an FM

station

101.5and

preset

2 canbe

an AM station

atTlO

etc. For

con-

venience,

suggest

that you put your station

presets

in order

of ho-w

often you listen

to the

sta_

tion. But

hey,

it's your receiver...so

it how

you want!

The

HR-732lHR-742's

memory

will retain

pre-

set

information for about 3 days

after

it is

disconnected.

This

helps

prev'ent

electronic

am-

nesia

when moving your system

around

or from

power

outages.

Automatic Preset

Selection

If you just

want to "browse',

around

the FM

and

AM dials

to select presets....

1. Select

or CATV

(HR-74}only) from

the

TUNER

MODE

buttons.

2. Press

the FREQENCY

PRESET

button if

necessary

so frequency

displayed.

3. Push

and hold MEMO

button.

4. Push

and

release

button, release

MEMO

button. The

tuner

will scan

until

it finds

strong

station

and play

sample

of it.

5. If you want that station

KWIZ! All

Punk

Polka!")

preset,

do nothing

(except

hold the

MEMO button down).

The

station

will be memorized

and

assigned

preset (starting

with 1). Then

the scanning

will continue

up the FM

band.

"Samplinq"

Stations

with

Preset

Scaln

If you want to knowwhat's playing on each

preset

(or simply forgot which was

which), the

HR-732

andHR-742

can give

you a S-second

pre-

view of each preiet station, starting with preset

and continuing until you find something you

like or give

up and play a

CD.

1. Press

the PRESET

SCAN

button.

2. The PRESET

SCAN indicator light will

begin

flashing.

3. Press

theUP

or DOWN buttons to start

scanning

through the presets.

4. When you find one you want to stay

with, press

0/CLEAR:

l. Turn on the cassette

deck

and HR-7321

HR-742.

Press

TAPE

MONITOR on the HR-7321

HR-742

front panel or TAPE

on the

remote

control.

After

a tape you KNOW has

mu-

sic

on it, press

PLAY

on the

cassette

deck.

ust the HR-7

HR-7

42'

s volume

control or press

DO\ 4\I or UP

on the

remote

control.

Press

one of the input selector

buttons

to choose

the sound source

from which

you

wish

to record.

Most likely,

this will

CD, PHONO

or AM/FM/CAW

(tuner).

After

a blank

cassette

into the

deck

and making

any necessary

adjust-

ments for tape

type, noise

reduction,

etc., put the

deck into REC/PAUSE.

Press

PLAY

on the

sound

source

(unless

of course it's

the HR-732/HR-742's

TUNER).

The sound you hear

coming

over your speakers

the

SOURCE.

Adjust

record

levels

on the

deck

and

begin

recording.

To hear

the sound as it is

being returned

from the

cassette

deck,

press

the

TAPE

MONITORbutton on the HR-7321

HR-742

front panel.

Playinq

video

throuqh theHR-732/

lR-717

(via

A{flodk-up

and2-page11)

Turn on your video source

(most

likely a

VCR),

the TV and

the HR-732

HR-742,

PressW/VID

CDV/VID

2orTVlytD

3 on the receiver's

front panel or via

remote

control. A corresponding

indi-

cator

will light up on the receiver,s

display panel.

Select

SPEAKERs

A or B with the receiver

front panel

pushbuttons.

Activate

the video source

and adjust

the

HR-732lHR-7

42's volume,

tone

controls

etc.

to your own taste.

To switch between

video sources,

sim-

ply press

the appropriate

input selection

button.

Plalng

atape

Recording

atape

Mdeo

dubbing

Turn on your

video

SOURCE

(VID 1

VID 2), youTTARGETVCR

(connected

to VID 3),

the TV and theHR-7321

HR-742.

Select

the appropriate

video source

(TV/

VID 1

or CDV/VID 2)

via

front panet

button or remote control.

3. "Cue

up" the

tape

or LD

to the

place

where

you want to start recording.

4. Press

PLAY

on the

SOURCE

and

RECORD

thc TARGET

dCCK.

Stereo

sound

through your

main

speakers

(if

youiW has

stereo

outputs)

1. Turn

onyourTVandthe HR-7321

HR-742.

2. Press

TV/VID 1

on the receiver,s

front

panel

or via remote control.

3. Select

SPEAKERs

A or B with the receiver

front panel

pushbuttons.

4. Tune the station/program on the TV

and ad

just

the HR-7

IHR-

742's

vol-

ume,

tone

controls

etc.

to your

own

tastes.

To switch to a VCR,

simply press

the

appropriate

input selection

button.

Depending

on the TV,

it's

own volume

control may or mav not affect

the

sound

levei arriving at the HR-7321

HR-7

42. If VOLUME on the TV does

affect

its

AUDIO

OUT volume,

adiust

this volume relatively high and reduce

the

HR-732lHR-742's

volume

for re-

duced

hiss.

Wake.up

mode

The HR-Z32lHR-74Zcan

used

with an

exter_

nal timer to furn thereceiver on at a p.e_arrangeO

time. Consult

your Carver

Dealer

for'informa_

uon on special

timers

designed

for stereo

equipment. you can also

ise -a

stanAirO

ptug_in

house

light timer if it is

rated

fo; ;ti;;is amps.

In either case,

the receiver

t u, to n" p-_

grammed so

that it can ,,remember,,

th'e

source,

etc.

when it comes

back

on.

1. Press

WAKE

Up. The

Wake

indicator

will begin

flash. r

2. While.,,Wake

Up,,

lit,

press

MEMO.

Now the ,,Memo,,

indicalor

flashes

and

SEL

appears

in the

alphanumeri.A;_ -

play.

3. Select

the

desired

input. For

AM or FM,

just press

the

numbbr

of the

preset.

- -

4. Press

I/ONCE or 2/DAILy (preset

but_

tons 1 and2), depending on whether

you want the receiver

tolust turn on to

these

settings

once

or every

Ouy

at tfre

same

time.

5. The

"Wake

Up,,

indicator

will once

agatn

ttght

up. This

means

you,re

through and

everything,s

set

correctly.

6. Set

the

timer

and

leave

the HR_7321

HR-742

power button on.

I To review

the wake_up

,,program,,,

press

WAKE

Up twice any tim6 tfrE,"."iu'"i i,

turned on. The actual

wake_up

progiu_

(source

and

preset)

will be

,"tu'i.i"J.''-^'

I If you're

using

cassette

deck

with full

togic

(so-called

,,feather

touch,,)

con_

trols for a

source,

make

sure

ttrat its -

TIMER

pLAy SWITCH

set

to on. Oth_

erwise

it will ,,sleep,,

through the

timei,s

call.

)StulgJhe.stgep

timer

\rrK.-/lzonn

- The HR-T4}includes a

built_in timer that turns

the receiver

off after

a preset

period of time. It,s

handy for bedtime list^ening

iut." yor, ,.rsp.ct

that you m.1r

fa]l

asleep

and

don,t;";ith;;;_

ceiver

on.all

night. nui it can

also

n""i!Jio

conround

burglars (your

receiver

plays

for an

nour or so

after

you,ve

left),

simply

timer

for

those

instances

*h"" i;;i-pffiirsi a.

something else

after,

for example,

u'niff no", of

listening.

1. While theHR-742is

on,

press

the

SLEEp

button.

2. You

will now press

the SLEEp

button

one or more times to ,,program,,

the

duration before

the receivdr

automati_

cally

shuts

off. Each

time

you pr"i, --

SLEEP,

the

amount

of time befbre

turn_

off increases

follows:

1st

push

2nd push

3nd

push

4th push

5th push

6th push

7th

push

8th push

minutes

120

minutes

Erasewake-up

mode

Press

WAKE

Up button if necessarv

exit

WAKE

mode.

(WAKE

Upg'oei

out).

Press

WAKE IJp

twice,

then CLEAR.

Wake

up settings

will then be

erased.

9th push returns

to 10

minutes

and starts

the cycle

again.

I Note

that the

first

minutes

ur"-oro_

grammed

in ten

minute

incremenis

just

press

the

button once

for each

ten

minutes more you want the HR_7

ai-lo

stay

on. After that, the duration in_

creases

by 30-minute

intervals.

Cleaning

. You'll

want towipe off the

HR_232/HR

_742,s

rro-nt

panel and chassis

from time_to_time

with a

;oft, dry cloth. If you fru,ne

,omeinlns ,tuUoor,,

remove,

use

mild dish.

soap

det-ergent

spar_

ingly applied to a soft

cloth; d6nlt ur"ir?ot or,

ammonia,

other

strong

solvents.

Enjoyng

Sonic

Holographf

After

instolling

and connedingthe

HR-732/HR-742

tothe restof

your

stereo

slrtem,

you'llprobobly

tempted

to begin

playing

music ond

expeimenting

with

Sonic Hologrophrf

urge

you

to resist

this temptation for

the moment.

lf you

decide to try it

onwayl not much will hoppen.

. .

becouse

you're

only

pott woy

there.

Successfu I Son k H

olog ro

phf depe n ds

on proper

loudspeoker plocement

ond

other importont

fodors.

Reod the

following

section ond follow

the

i nstruction

s o nd recom

me ndations

exodly.

lfsworth the effort

Making Sonic Holographf work properly

requires

attention to many factors

that usually

aren't problems

or considerations

for normal

stereo playback.

The two most important factors

are 1) accurate

relationships

between

the loudspeakers

and

lis-

tening chair, and 2) dealing with sound reflected

off surfaces in the listening

room.

The real keys

to this process

are the relation-

ships

between

the loudspeakers

and chair. The

full musical

image in Sonic Holographf will

never

occur unless

the correct,

accurate loud-

speaker/listening

chair relationship

is achieved.

This whole process

might seem like a lot of

trouble and effort, but you'll be amply rewarded

by the stunningly

live

imaging

that Sonic

Holographf brings to your favorite music.

Room

examples

The first two sample rooms show the loud-

speakers

and listening

chair in perfect

positions

for Sonic Holographf. But,

we've

mentioned,

it may

not be

practical

to place

them there. It's

your mission (should

you accept it) to find a

point where adjustments

for successful

Sonic

Holographf can coexist happily with the aes-

thetic

considerations

of room decor. Look

at the

diagram

of Room

Here

the loudspeakers

prolect the long throw

of the room, yielding a large

front-to-back depth

of the sonic

stage.

Room B, where the loudspeakers

project the

short span

of the room, has

exceptional sonic

slage

width and moderate

front-to-back depth.

Naturally the choice

of positioning depends

your p€rsonal

taste,

as well as

furnishings and

overall room arrangement.

Sample

Rooms

C, D, E and F show configura-

tions that won't work well with Sonic

Holographf, though they may be acceptable

for

conventional stereo playback. Aside

from poor

loudspeaker

placement,

excessive

sound

rehec-

tions from the side

walls will hamper chances

achieving

good holographic i-ug".

Better

room arrangements

are

shown in

Rooms

G and

Refer

again

to the diagram

of Room B which

compares

favorably to both Rooms

G and H.

What makes

it so good for Sonic

Holographf?

First,

as in the initial setup,

the loudspeaktrs

are

away

from corners,

side

walls,

and the wall be-

hind the loudspeakers.

There

a reflective

wall

about one to four feet

behind the listener,

placing

them in a sound field made

up of direct sound

from the loudspeakers

and reflected

sound from

the rear

wall.

In Room

G, with the loudspeakers

still away

from the side walls and corners,

the listener

has

nearby

rear

wall to ensure

front-to-back depth in

the

holographic

image.

As in anygood plate-

ment for Sonic

Holographf, the loudspeakers

are

toed-in toward the listening chair. This places

the listener

on-axis

with direct sound from the

loudspeakers,

further reducing side-wall

refl

ec-

tions at the same

time. NOTE: A few speaker

systems

are

designed

that they are actaully

toed inwhen they appear

to be facing

directiy

forward. Try them in their normal position first.

Room H uses

trick to get

the loudspeakers

al-

most

against

the wall behind

them. This

consists

of a

sound-deadening

panel

placed

behind

the

loudspeakers,

right afainst

the wall.

Loudspeaker

designs

and

early

reflections

The HR-732

IHR-7

42's

Sonic

Holographf

Sound

Processing

System

uses signal

delays

of a

fraction

of a millisecond.

In some

loudspeakers,

reflections

with similar delays

can

be caused

protruding edge

moldings, grillework, or othei

front surface

irregularities

that might dilute an

image

when the

HR-732/HR-7

42's

Sonic

Holographf feature

engaged.

Most modern loudspeakers

use

sound-absorb-

ing materials,

rounded corners,

or even

unconventional designs

to reduce

these

early

re-

flections. In all fairness,

most loudspeakers

rlvith

"conventional"

front panels

won't have

any

seri-

ous reflection problems

that could hurt or

weaken

holographic

images.

However,

if sound

images

remain fuzzy andunresolved,

even

with

close attention

to all other factors,

there's

possi-

bility it could be

the result

of early reflection off

front-panel irregularities.

The

solution

to this

problem

consists

of plac-

ing a cut-out of acoustic felt around the various

elements

in your loudspeakers.

Check with your

Carver dealer

for details.

Hologram

Generator

system

should

cause musi-

cal

instruments and other sound sources

spread

out in a large 45"

to-95"

arc in front of

you.

Sound images

will exist

to the left

and right,

extending well

beyond

the limits

of the loud-

speakers

and, occasionally,

all the way to your

extreme left

and right.

You'll be

able to perceive

sonic stage

depth of

to 20 feet with sound images

clearly floating

behind and, from time-to-time, in front of the

loudspeakers.

You can

actually turn your head

and look at the sound images;

these images

will

seem to stay put in space. Some

sound images

may even seem

to clearly

emerge from outside

the walls

of the listening

room.

A "testflighf'

If you've

correctly

established

the initial rela-

tionship

between the loudspeakers

and listening

chair, you should

be able

to experience

Sonic

Holographf at this point.

First,

take a

couple of minutes

to "preflight

check" your stereo

system:

1. Visually

check

out and

confirm that all

components

are connected

in phase

(al,

left-channel

outputs

to left-channel

in-

puts,

right-channel

outputs

right-channel

inputs).

2. Check

and confirm that the

loudspeak-

ers are properly

wired

in-phase

(positive

speaker

terminals

on the HR-7321

HR-742

should

be connected

to the

positive

terminals

on the loudspeakers;

negative

outputs to negative

terminals

on the loudspeakers).

If your system

employs an

external

equalizer

to flatten

room response,

recommend

that you switch

it out of

the HR-732/HR-742

signal path. Wait

until you've

had a

chance to experience

and experiment

with Sonic Hologra-

phy@

before re-equalizing

the room.

Room response

will also be altered

any

sound treatments

used

to reduce

room reflections,

wait

until all

phases

of the Sonic Holographyo

set-up

are

complete

to save

time and

trouble.

If you are

using a record

for a sound

source/

your phono cartridge

should be

inspected

for excessive

wear,

dirt accu-

mulations

or improper

alignment

which can simulate

certain

acoustic

problems

that cause

strong

one-side

imaging with weak imaging

on the

other.

Set the

HR-732lHR-742's

BALANCE

control

to center. Set

the BASS

and

TREBLE

tone

controls to their center

(12

o'clock) position.

Basic

set-up

steps for m

Sonic Holcigrapihy' :xrm|Zng

To perform the setup, you'll need

a steel tape

measure

and listening

chair. Refer

to the illustra-

tion on the next page

and follow this five-step

procedure:

1. Make

sure

the loudspeakers

are

away

from side and rear walls

as indicated

the

diagram.

2. Move'the

loudspeakers

so they are

ex-

actly

six feet apart

with the listening

chair

centered

and directly facing

the

speakers.

3. Adiust

the

toe-in of the speakers

so that

the outer

edge is

ONE INCH closer to

you than the inner edge.

4. Place your listening

chair

so that it is

not directly against

the rear wall of the

listening

room.

5. Carefully

measure

the distance

from the

CENTER

of the left speaker's

top woofer

to the CENTER

of the listening

chair.

Repeat

the measurement

for the right

speaker.

Adjust

the chair

so that both

distances

(D1

and D2 in the

large illus-

tration on page

33) are EXACTLY

the

same. Accuracy

within 1/4 INCH is de-

sired.

The goal

of these

steps has

been to place

the

listening

chair

at a

point equidistant

from both

loudspeakers

(on

what we

call the

stereo axis).

Being

on this acoustic

centerline is very

impor-

tant to hearing

a musical image

in Sonic

Holograph/o. If you've followed the above in-

structions,

a listener

seated in the chair

is all set

for initial experiments

with the Sonic Hologra-

ph/o Sound Processing

System. You'll

undoubtedly have

to make

some minor adjust-

ments,

but this

should get

things going.

Sonic Holographf operation

Before listening

to some musical

selections

Sonic

Holographf, you should know what to lis-

ten for. With correctly positioned

loudspeakers

and listening

chair, the

HR-7 32

HR-

742's

Sonic

:.:

: ...

....:

'. .:-.j'

' "'-U"i '

''-"'^ D2

' :.

: .

6. Press

the HR-732/HR-742's

HOLOGRAMbutton.

7. PIay

a stereo recording with only a few

instruments and the human voice for

first-time attempts at Sonic Hologra-

pht'.

You should now hear

Sonic Holograph/e in

action.

Sonic Holographf fine

tuning

Carefully adjusting the following parameters

will result

in the best possible

Holographic

image:

1. Speaker

tilt-back angle

and toe-in

angles.

2. Distance

of speakers

and listening

chair

from the

walls

behind

them.

3. Room

reflections.

Tilt-back and toe-in angles

If you are in a seated

position,

decreasing the

tilt-back angle of most typical speakers will result

in more high frequency

and less midrange energy

your

listening position. It will also lower

the

soundstage

closer to the

ground. If you are in a

standing position,

these

effects are reversed. De-

creasing the

tilt will result in less

high frequency

energy and will bring the midrange slightly

forward.

It is possible

to find a tilt-back angle

that will

allow the tonal balance to remain unchanged

from sitting to standing. This specific angle may

or may not result in the preferred

tonal balance.

We recommend that vou determine

vour favorite

tilt-back

angle while s'eated. But rem'ember,

changing the tilt angle

will also change

the

height

of the sonic image.

The less tilt, the

lower

the image.

Increasing

the tilt angle will, how-

ever, often

enhance the

dimensionality of the

soundstage.

Toe-in (the lateral

angle of the speakers) also

affects Sonic Holographt'. When experimenting

with speaker angle, make

sure that the speakers

are equally toed in. This can be

done by measur-

ing the distance from the inner and outer corners

to the

back

wall of the listening

room.

Otherconsiderations

Here

are

some

other factors

which affect

Sonic

Hologram generation:

Relationship of speaken to fiont and back

wails

- The_purpose

of keeping

the loudspeakers

away

from the walls is

to provide a direct,

ipeaker-to-

ear

sound path with a minimum of extra,

unwanted reflections

off nearby

room surfaces.

Just

secondary

reflected

sound arrivals

confuse

the ear in normal stereo playback,

they also

ruin

attempts at creating

holographic images.

Always

keep

in mind the importance of accurate

loud- -

speaker/listening

chair relationships

and

keeping

the loudspeakers

relatively close

together.

Room reflections

For

the

best

possible

Sonic

Hologram

genera-

tion, the area

around and behind your speakers

should

be relatively

dead.

If the

back

and

side

walls are

too reflective,

they may generate

addi-

tional sound reflections

which can interfere

with

Sonic

Holography@.

Acoustic treatrnent

The object of acoustically

treating the listening

room is to create

what's known as a live end/dead

end configuration. This design

makes

the area

around the loudspeakers

acoustically

"dead,,,

while the area

around the listener

is kept live.

Thus

random

sound

reflections

reach

a listener

long after

the

direct

sound,

establishing

a uni-

form sound

field.

The reflections

most in need

of correction in

your listening

room are

the usually

strong,

side-

wall reflections

from surfaces

near

each

loudspeaker.

Any treatment

should

be applied

to the wall

extending two feet

above

and below the

midrange

and high-frequency

loudspeaker

ele-

ments, standing two to three

feet from the

leading

edge

of the

loudspeaker

cabinet.

The

treatment

itself

may

be quite

simple.

Open,

full book

cases

or record

shelves,

heavy

fabri,c

hangings,

or draperies

made

of hear.y

ma-

terial will work well as an

acoustic

treatment

for

many situations.

Sound

panels

made

from thick

cork or acoustical

tile can

be covered

with a

vari-

ety

of other

sound-absorbing

materials,

too.

Since

side-wall

sound

treatments

are relatively

small (usually

less

than four feet

by four feet),

you

could use attractive

grille cloths or foam panels

improve the appearance.

However,

loudipeaker

grille cloths or covers

by themselves

are not effec-

tive

sound

absorbers.

Scrap

carpeting

can be

effective

when used

with other sound-absorbing

materials.

HR-

732lHR

-7

42 pow

er off .

Line

cord disconnected.

Poor

fit between

AC plug and wall

receptacle.

Power

off at wall receptacle

(check

with

tester

or lamp).

Remember

that the main power switch

and power LED

must be

on for you to be

able to turn on theHR-732lHR:74Zby

remote

control.

sound

(power

OK and

on)

HELP!

trouble-

shooting

guide

If you're having trouble or suspect

problem,

try som_e

simple

trouble-shooting first. Usually,

the problem lies

elsewhere

in the system

connections,

not with the HR-732

orHR-742.

sound

(HR-732/HR-742does

not

light

up)

1. HR-732lHR-742input

select

buttons

set

to inactive

source.

2. Tape

Monitor has

been pressed

(check

the

fluorescent

display)

when there,s no

component connected

to the loop.

3. MUTE

button onHR-732lHR-742

remote

activated.

4. Wrong SPEAKER

button has

been

pressed.

. . or neither

has

been

selected.

5. Selected

input is simply

not functioning

or the connecting hook up cables

are

malfunctioning.

6. Program

source

has

problem. For

ex-

ample,

tuner is

between

stations,

tape is

on a

blank

segment,

player

pause.

sound

one

channel.

1. Defective

cable

from music source

HR-732tHR-742.

2. Speaker

wire

loose

or disconnected.

3. HR-732lHR-742

BALANCE

control

fully

clockwise

counterclockwise.

4. Speaker

fuse

blown.

!-"r.d

howl,

squeal

or whistle

while

mprng.

1. TAPEMONITORisengagedwhilemi-

crophones

are connected

to tape

deck

for recording.

sound

when AM or FM is

selectd.

1. AM loop antennanotconnected.

2. FM

dipole

or external antenna

has not

been

connected.

3. Tuning section

has not been

tuned to

an existing

station.

Solovoices or

instruments sound

thin, shrill or distorted.

1. Treble tone control set to maximum

boost.

2. Phono cartridge

wired out of phase

(re-read

instructions

which came

with

the cartridge and check out all four con-

nections betr,veen cartridge

and

tonearm).

3. Speakers are

connected out of phase.

Sound

is weakwhen PHONO

input is

selectd.

1. A low-output moving coil cartridge

has

been

connected.

Add a step-up

transformer such as the Carver MCt.

Hum and constant

noise

1. Defective

signal

cables.

2. Improper fit between signal

cable

plug

and sockets.

3. Signal cables

have been routed too close

to AC cables,

power transformers

motors.

4. Turntable or cassette deck

may be ori-

ented in such

a way that it is picking up

induced hum from AC wall wiring.

Change

component's position slightly.

Intermittent

noise, voices or hum

causd by

RFlinterferencefrom

CB,

WorAM radio.

Determine where the RFI

(radio fre-

quency interference) is entering the

system

by disconnecting individual

sound sources, then the HR-7321

HR-742.

Use

higher quality interconnect cables

with better shielding.

Wrap turntable input cables

aluminum foil.

Place 0.01 microfarad capacitors

across

the HR-732lHR-742's left and

right

speaker terminals.

Remote control

won't work

1. Batteries are dead or missing.

2. Remote is to6 far from or at too much of

an angle

in relation to the remote sensor

on the HR-732|HR-742.

3. Remote

sensor

onHR-732lHR-742 or rc-

mote control transmitter panel are

dirty.

Seruice

Assistance

We suggest

that you read the LIMITED WAR-

RANTY completely to fully understand

what your

service coverage

constitutes and its duration.

Please

promptly complete and return the WAR-

RANTY REGISTRATION CARD

to make

administrating your LIMITED WARRANTY

quicker and easier

later on. AIso be sure to save

the sales

receipt in a safe

place. It will be neces-

sarv

for warranW service.

if your HR-7i2lHR-742 shouldrequire

service,

we suggest

you first contact the Authorized

Carver

Dealer from whom you purchased it.

Should

the Dealer be unable'to take care of your

needs,

you may contact the CARVER Service

De-

partment by phoning (206) 7 7 5-6245, or by

writing CARVER

CORPORATION, Service

Depart-

ment, P.O. Box 1237,Lynnwood,

WA 98046.

will then direct

you to the nearest in our national

network of Authorized Warranty Service Centers,

or give you detailed

instructions on how to re-

turn the product to us for prompt action.

We wish you many hours of musical enjoy-

ment. If you should

have

questions

comments,

please write to us at the

address

above.

Patent

Notice

(our

lawyer

insists.

The circuitry

and application

of the CARVER

Sonic

Holographf Sound

Processing System

are

protected by United States

Patent 4,218,585

and

corresponding

foreign

patents.

O 1991

CARVER

CORPORA-

TION P.O.

8oxL237,

Lynnwood,

WA 98046

QOO

7 7 5-1202.

Pttb# 910303-4;

Part# 990-2-

113-00.

Written and

desktop-published

America

PRINTED

IN TAPAN

{

Printed in

J6pan J

124JW1210 {

,.{

'.i

,

Carver HR 742 Owners Manual

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