Pioneer CT-W770 Owner’s Manual

STEREO DOUBLE CASSETTE DECK

CT-W 77o

I. I.i.li:i:i:i| -.,-"-"-.,

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• For the demo function, refer to the back cover of these oper-
ating instructions.

Thank you for buying this Pioneer product.
Please read through these operating instructions so you will know

how to operate your unit properly. After you have finished reading
the instructions, keep the manual in a safe place for future ref-

erence.

In some countries or regions, the shape of the power plug and
power outlet may sometimes differ from that shown in the expla-

natory drawings. However, the method of connecting and opera-

ting the unit is the same.

WARNING: TO PREVENT RRE OR SHOCK HAZARD.

DO NOT EXPOSE THIS APPUANCE TO RAIN OR MOISTURE.

IMPORTANT NOTICE

The serial number for this equipment is located on the rear
panel. Please write this serial number on your enclosed war-

ranty card and keep it in a secure area. This is for your
security.

....

i" -!

CAUTION:To PREVENT ELECTRIC SHOCK DO

NOT USE THIS (POLARIZED) PLUG WITH AN EXTENSION
CORD. RECEPTACLE OR OTHER OUTLET UNLESS THE

BLADES CAN BE FULLY INSERTED TO PREVENT 1BLADE
EXPOSURE.

/_| |IPI_I|IUN:POUR PREVENIR LES CHOCS
ELECTRIOUES NE PAS UTIUSER CETTE FICHE POLARISEE
AVEC UN PROLONGATEUR UNE PRISE DE COURANT OU
UNE AUTRE SORTIE DE COURANT, SAUF S! LES LAMES
PEUVENT ETRE INSEREES A FOND SANS EN LAISSER
AUCUNE PARTIE A DECOUVERT.

IMPORTANT 1

The lighthit1_ tklsh with erfOwhetld, within an equilateral
tr_ngle, is intended to alerl the user to the presence of
uninsulated "'der_erous voltage" within the product's

imclo_we that may be of sufficxmt magnitude In constitute

• "sk Of electric shock tO persons.

CAUTION

CAUTION:
TO PREVENT THE RISK OF ELECTRIC SHOCK, DO

NOT REMOVE COVER (OR BACK). NO USER-
SERVICEABLE PARTS INSIDE. REFER SERVICING TO
OUAMFIED SERVICE PERSONNEL.

PlONIEER"

7he Art of _nment

The exclamation I:_nt within an'equilateral triangle is
intended to alert the us_ to the ;xese_e of impmlant
opiating and maintenance (servicing) instructions in
the 5teralure accompanying the alR)lionce.

I SPECIFICATIONS .-

System ........................................................ 4-track, 2-channel stereo

Heads .................... "Hard Permalloy" recording/playback head X 1

"Head Permalloy" playback head x 1

"Ferrite" erasing'head x 1

Motor ................................................................. DC servo motor x 2

Wow and Flutter ........................................................ 0.09% (WRMS)

Fast Winding Time ............ Approximately 100 seconds (C-60 tape)

Frequency Response

--20 dB recording:

TYPE IV (Metal) tape ............................................ 20 to 16,500 Hz

TYPE II (Hig_CrOz) tape ...................................... 20 to 16,000 Hz

TYPE I (Normal) tape ............................................ 20 to 16,000 Hz

Signal-to-Noise Ratio"

Dolby NR OFF..................................................... More than 57 dB

Noise Reduction Effect

Dolby B-type NR ON ......................... More than 10 dB (at 5 kHz)

Dolby C-type NR ON ......................... More than 19 dB (at 5 kHz)

Harmonic Distortion ............................................ No more than 0.8%

(at --4 dB: 160 nwb/m)

Input (Sensitivity)

LINE (INPUT) ........................... 100 mV (Input impedance 68 kO)

Output (Reference level)

LINE (OUTPUT) ........................ 0.5 V (Output impedance 1.7 kO)

Subfunctions

• Automatic reverse

• DOLBY B/C type NR

• Music search over +15 selections

• Synchronized copy start

• High-speed and normal-speed copy (Deck I - Deck II)

• Relay playback/blank skip

• Peak level meter with peak-hold function

• Automatic space recording mute

• Automatic tape selector

• [] System remote control available

• 2-mode electronic 4-digit twin tape counter

• Rewind-Auto play

Miscellaneous

Power Requirements ............................................... AC 120 V, 60 Hz

Power Consumption .................................................................. 15 W

Oimensions ...................................... 420(W) X 125(H) X 250(D) mm

16-8/16(W) X 4-14/16(H) X 9-13/16(D) in

Weight (without package) ........................................................ 3.9 kg

8 Ib 9 oz

Accessories

Operating instructions ......................... _ ........................................ 1

Connection cords with pin plugs ..................................................... 2

[]Remote control cord .................................................................... 1

NOTE:
Specifications and design subject to possib/e modifications with-

out notice, due to improvements.

Demo mode

- -|

About the Demo mode
Press the OECK II counter reset button (RESET) and the DECK II

counter mode button (TIME/COUNT) simultaneously to set the
demonstration mode.

Published by Pioneer Electronic Corporation.
Copyright O 1994 Pioneer Electronic Corporation.

All rights reserved. " .

PIONEER ELECTRONIC CORPORATION 4-1. Meguro 1-Chome. Meguro-ku, Tokyo 153. Japan

PIONEER ELECTRONICS [USA] INC. 2265 East 220th Slreet. Long Beach, California 90810, U.S.A.

PIONEER ELECTRONICS OF CAJ!_U)A, INC. 300 Allstate Parkway Markham, Ontario L3R 0P2, Canada
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1.9120 Melsele, Belgium. TEL: [phone],11
PIONEER ELECTRONICS AUSTRALIA Fry. LTD. 178-184 Boundary Road. Braeside, Victoria 3195, Australia, TEL: [03] 580-9911

<94COOBYOWO0> < RRB 1150-A>

P.O. BOX 1720. Long Beach, California 90801. U.S.A,

SAFETY INSTRUCTIONS

READ INSTRUCTIONS -- All the safety end operating

|netructtons should be mad before the appliance is
operated.

RETAIN INSTRUCTIONS -- The safety and operating

inetructions should be retained for future
rofermlce.

HEEO WARNING -- All warnings on the appliance and in

the ooereting i_s should be adhered to.

FOLLOW INSTRUCTIONS -- All operating and use

instructions should be followed.

WATER AND MOISTURE - The appliance should not

be used near watur-- for example, near a bathtub,

washbowl, kitchen sink, laundry tub, in a wet

basement, or near • swimming pool, etc.

LOCATION -- Th_ appliance should be installed in 8

mbie Io_,on.

WALL OR ClEIUNG MOUNTING - The appliance

should not be mounted to • wall or ceiling•

VENTILATION -- The a'ppliance should be situated so

that its location or position does not interfere with

its proper ventilation, For example, _.e appliance
should not be situated on a bed, sofa, rug, or similar
surface that may block the ventilation openings; or,
placed in s built-in instsiiation, such as s bookcase
or cabinet th•t m•y impede the flow of air through
the ventilation openings.

HEAT -- The appliance should be situated away from

heat source• such as radiators, heat registers,
stoves, or other appliance• (including amplifiers)
that produce heat.

POWER SOURCES - The appliance should be

connected to I power supply only of the type
described in the operating instructions or as
marked on the appliance.

POWER-CORD PROTEC11ON - Power-supply cord•

should be routed so that they are not likely to be
walked on or pinched by items placed upon Or
against them. Pay particular attention to cords st
plug•, convenience receptacles, end the point
where they exit from the appliance.

POLARIZATION -- If your purchased product is

provided with a polarized power plug, pies•e read

the following instructions. This product is equipped
with s polarized sifemsting current line plug (• plug

having one blade wider than the other). This plug
will fit into the power outlet only one way. This is a

safety feature. If you are un•ble to insert the plug
fully into the gullet, try reversing the plug. If the

plug should still fail to fit, contact your electrician to
replace your obsolete outlet. Do not defeat the
safety purpose of the polarized plug.

CLEANING - The appliance should be cleaned only

with a polishing cloth or s soft dry cloth. Never
clean with furniture wax, benzine, insecticides or
Other volatile liquids •inca they may corrode the
cabinet.

POWER LINES - An outdoor antenna should be located

away from power lines.

NONUSE PERIDDS - Tbe power cord of the appliance

should be unplugged from the o_let when left

unused for • long period of time.

OBJECT AND LIQUID ENTRY - Care should be taken

so that objects do not fall end liquids are not spilled
into the encio_Jm through openings.

DAMAGE REQUIRING SERVICE -- The appliance

should be serviced by a Pione_ authorized service
center Or qualified service personnel when:

• The power-anl_oly cord Or the plug has been

damaged.

• Objects have fallen, or liquid has been spilled into
the appliance.

• The appliance has been exposed to rain.

• The appliance does not appear to operate normally
or exhibits s marked change in performance.

• The appliance has been dropl_d or the enclosure

damaged.

SERV_ING - The user should not attempt to service

the appliance beyond that described in the
operating instructions. All other servicing should

be referred to qualified service porionnel.

_T___- ANTENNA

"--"--J[ I LEAD IN

• J GROUND_ WIRE

_-._ _. DISCHARGE UNIT

/ _ GROUNDING CONDUCTORS

"_ I \\ AmENNA

POWER SERVICE GROUNDING

FIG. A (NEC ART 250, PART H)

ELECTRODE SYSTEM

OUTDOOR ANTENNA GROUNDING - if an Outaide

antenna is connected tO the antenna terminal, be
sure the antenna system is grounded so 8s to
provide some protection against voltage surges
end built-up static charges.

In the U.S,A. section 810 of the National Electrical
Code, ANSI/NFPA 70, provides information with

relpect to proper grounding of the mast and
supporting structure, grounding of the lead-in wire

to an antenna discharge unit, size of grounding
conductors, locetion of antenna discharge unit,
connection to grounding electrodes, and

requirements for the grounding electrode. See Fig.
A.

CART - An sppliance and cart combination should be

moved with dll_. Quick stops, excessive force, and
uneven surface• may cause the appliance and cart

combination to overturn.

NEC -- NATIONAL ELECTRIC CODE

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ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuanttoPart15oftheFCCRules.These

limitsaredesignedtoprovidereasonableprotectionagainstharmfulinterferenceinaresidential installation. This equipment generates,

uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful
interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this

equipment does cause harmful interference to radio ortelevision reception, which can be determined by turning the equipment off and on,
the user is encouraged to try to correct the interference by one or more of the following measures:

--Reorient or relocate the receiving antenna.

--Increase the separation between the equipment and receiver.

-Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

-Consult the dealer or an experienced radio/TV technician for help.

Alteration or modifications carried out without appropriate authorization may invalidate the user's right to operate the equipment.

I Information to User I

This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Ra-

dio Interference Regulations of the Canadian Department of Communications,

L'interftrence, radiotlectrique gtntrte par cet appareil numtrique de type B ne dtpasse pas les limites 6nonctes dans le
R_glement sur les perturbations radiotlectriques, section appareil numtrique, du Ministtre des Communications.

We Want You Listening For A Lifetime

Used wisely, your new sound equipment will provide a
lifetime of fun and enjoyment. Since hearing damage from loud
noise is often undetectable until it is too late, this manufacturer
and the Electronic Industries Association's Consumer Electronics

Group recommend you avoid prolonged exposure to excessive
noise. This list of sound levels is included for your protection.

Selecting fine audio equipment such as the unit you've just

purchased is only the start of your musk:a] enjoymonr. Now it's
time to consider how you can maximize the fun and excitement

your equipment offers. This manufacturer and the Electronic
Industries Association's Consumer Eleetmnics Group want you

to get the most out of your equipment by playing it at a safe
level. One that lets the sound come through loud and clear
without annoying blaring or distortiou---and, most importantly,

without affecting your sensitive hearing.

Sound can be deceiving. Over time your hearing "comfort

level" adapts to higher volumes of sound. So what sounds

=normal" can actually be loud and harmful to your hearing.
Guard against this by setting your equipment at a safe level

BEFORE your hearing adapts. °-.-

To establish a safe kvd:

• Start your volume con_at a low setting.

• Slowly increase the sound until you can hear it comfortably
and clearly, and without distortion.

Once you have _ a comfortable round level:

• Set the dial and leave it them.
Taking a minute to do this now will help m prevent hearing

damage or loss in the future. After all, we want you listening for
a lifetime.

Decibel
Level E_

30 Quiet library, soft whispers
40 Living room, refrigerator, bedroom away from traffic

50 Light traffic, normal conversation, quiet office
60 Air conditioner at 20 feet, sewing machine

70 Vacuumcleaner,haii dryer,noisy restaurant
80 Average city traffic, garbage disposals, alarm clock

at two feet.

THE FOLLOWING NOISES CAN BE DANGEROUS
UNDER CONSTANT EXPOSURE

90 Subway, motorcycle, truck traffic, lawn mower
100 Garbage mack, chain saw, pneumatic drill
120 Rock band concert in front of speakers, thunderclap

140 Gunshot blast, jet plane

180 Rocket launching pad

Information €ourtesy of the Deafness Research Foundation.

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CONTENTS

INSTALLATION ................................................................................ 4

MAINTENANCE ............................................................................... 4

HANDLING CASSE'I-FE TAPES ....................................................... 5

CONNECTIONS ................................................................................ 6

FRONT PANEL FACILITIES ............................................................. 7

PLAYBACK .......................................................................................I0

SINGLE PLAYBACK ....................................................................10

BLANK SKIP ............................................................................... 10

RELAY PLAYBACK ..................................................................... 10

MUSIC SE/j,R'CH......................................................................... 11

RECORDING .....................................................................................12

RECORDING ............................................................................... 12

RECORDING MU'FE .................................................................... 12

ERASING A TAPE ....................................................................... 12

TAPE COPYING ............................................................................... 13

TROUBLESHOOTING ...................................................................... 14

SPECIFICATIONS ............................................................................. 16

INSTALLATION

When installing the deck, avoid locations with

high temperatures or humidity, and make sure
that the deck receives adequate ventilation.

• Do not install the deck in locations subject to direct sunlight, or

near a space heater or other heating device, as this may cause

damage to the finish or internal parts.

• Malfunctions may also result if the deck is installed in an ex-

cessively humid or dusty location. Avoid installing the deck

next to kitchen counters or other locations subject to oily
smoke or humidity.

• If the deck is placed directly on top of an amplifier, it may pick

up humming or other noise. Also, if the amplifier generates a
large amount of heat, the deck may malfunction.

• If the deck is located near a television set, it may pick up inter-
ference noise, which will be recorded as a whistling sound on

the tape. If this happens, move the deck further away from the
television set or turn the television set off when operating the

deck.

• Do not place a cloth over the deck, or block the ventilation slots

in any way. The ventilation slots on this deck are necessary to
keep internal parts cool. If they are blocked, the deck may mal-

function.

CONDENSATION

When the deck is moved from a cold location to a warm location,
or when the temperature of the room changes suddenly, conden-

sation may form on the mechanical parts. This can adversely af-
fect the performance of the deck. If condensation forms, wait for
about one hour to allow the deck to adjust to the room tempera-
ture. To prevent condensation when heating a room, raise the
temperature slowly.

THE POWER SWITCH IS SECONDARY CONNECTED AND

THEREFORE DOES NOT SEPARATE THE UNIT FROM MAINS

POWER IN STANDBY POSITION.

MAINTENANCE

head

Pinch roller

Rec/play head

Capstan

Pinch roller

._. _

1 CLEAN|NG THE HEADS" PINCH ROLLERSlAND CAPSTANS

The heads, pinch rollers and capstans are likely to get dirty quite
easily. If these parts, particularly the heads, get dirty, the high fre-
quency components of a recording will not be reproduced and the
stereo balance will be impaired, resulting in a deterioration of the

playback sound. It is therefore recommended that the head sec-

tion be cleaned regularly.

1. Set the POWER switch to STANDBY.

2. Press the eject button to open the cassette door.

3. Dip a cleaning swab in cleaning fluid and use it to wipe the
heads, capstans and pinch rollers.

NO TE:
After cleaning the head secdon, do not load a tape until the clean-
ing fluid has dried completely (about two or three minutes).

I DEMAGNETIZING THE HEADS ]

After using the cassette deck for a period of time, the heads will
become magnetized. The same effect will occur if a magnetized
screwdriver, magnet or other magnetized object is brought too
close to the heads. When the heads become magnetized, high-fre-
quency sounds will be lost during recording or playback, and in-
terference noise may also occur. The heads should be regularly
demagnetized with a head demagnetizer, which can be purchased

at most audio stores.
When demagnetizing the heads, make sure that the POWER

switch of the cassette deck is set to ON. However, be sure to turn
down the amplifier's volume control to its lowest position, and dis-
connect any headphones from their headphones jack. For detailed
instructions, refer to the operating instructions of the head de-

magnetizer.

CLEANING THE FRONT PANEL ]

Clean the deck regularly with asoft cloth. Ifthe front panel becomes

soiled, moisten a soft cloth with a weak solution of neutral deter-
gent (diluted in five to six parts water), wring the cloth well, and

wipe the panel clean. Never use volatile cleaners like thinners,

benzine or alcohol because they will damage the panel finish.

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