JVC TD-W254 User Manual

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DOUBLE CASSETTE DECK

TD-W254 B/J

Area suffix
B ....................	U.K.
J .....................	U.S.A.

TD-W254 DOUBLE CASSETTE DECK

DOLBY B-C NR HX PRO

TD-W254 DOUBLE CASSETTE DECK

DOLBY B-C NR HX PRO

STANDBY

INPUT LEVEL

COUNTER RESET

AUTO REVERSE

AUTO

REVERSE

AUTO REVERSE

PLAYBACK

3MOTOR SILENT MECHANISM

REC/PLAYBACK

PLAYBACK

3MOTOR SILENT MECHANISM

REC/PLAYBACK

COMPULINK

PLAY

COMPULINK

PLAY

Component

MIN

MAX

Component

MIN

MAX

PHONES

A B SYNCHRO DUBBING

POWER

PHONES

REC/REC MUTE PAUSE

A B SYNCHRO DUBBING

POWER

DOLBY B NR REVERSE MODE

REC/REC MUTE PAUSE

DOLBY B NR REVERSE MODE

B OFF C

NORM SPEED HIGH SPEED

B OFF C

AUTO TAPE SELECTOR / CONTINUOUS PLAY

NORM SPEED HIGH SPEED

AUTO TAPE SELECTOR / CONTINUOUS PLAY

STANDBY / ON

ON OFF

(B version) (J version)

INSTRUCTIONS

For Customer Use:

Enter below the Model No. and Serial No. which are located on the rear of the cabinet. Retain this information for future reference.

Model No.

Serial No.

VNN2358-672M

	RISK OF ELECTRIC SHOCK
	DO NOT OPEN
CAUTION	``TO REDUCE THE RISK OF ELECTRIC SHOCK
	DO NOT REMOVE COVER (OR BACK)
	NO USER SERVICEABLE PARTS INSIDE

REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.''

The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert the user to the presence of uninsulated ``dangerous voltage'' within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

WARNING:

TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.

IMPORTANT (In the United Kingdom)

Mains Supply (AC 230 V z, 50 Hz only)

DO NOT cut off the mains plug from this equipment. If the plug fitted is not suitable for the power points in your home or the cable is too short to reach a power point, then obtain an appropriate safety approved extension lead or consult your dealer.

BE SURE to replace the fuse only with an identical approved type, as originally fitted and to replace the fuse cover.

If nonetheless the mains plug is cut off ensure to remove the fuse and dispose of the plug immediately, to avoid a possible shock hazard by inadvertent connection to the mains supply.

DO NOT make any connection to the terminal which is marked with the letter E or by the safety earth symbol or coloured green or green-and-yellow.

The wires in the mains lead on this product are coloured in accordance with the following code:

Blue to N (Neutral) or Black Brown to L

(Live) or Red

As these colours may not correspond with the coloured markings identifying the terminals in your plug proceed as follows:

The wire which is coloured blue must be connected to the terminal which is marked with the letter N or coloured black.

The wire which is coloured brown must be connected to the terminal which is marked with the letter L or coloured red.

IF IN DOUBT-CONSULT A COMPETENT ELECTRICIAN.

Please study this instruction manual carefully before starting to operate the unit, in order to use the unit correctly. We take no responsibility for any problems resulting from misuse of this unit by operating this equipment other than instructed in this manual.

WARNING (In the United Kingdom)

Pre-recorded tapes, records or discs should not be re-recorded without the consent of the owners of copyright in the sound recording and in any copyright musical or literary work embodied in that recording as this constitutes an infringement of copyright.

INFORMATION (FOR U.S.A.)

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential 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 or television 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.

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INTRODUCTION

Thank you for purchasing a JVC product. Read this instruction book carefully before operating to be sure of getting optimum performance and longer service life from the unit.

CONTENTS
Features ....................................................................................	3
Cautions ....................................................................................	3
Connections ..............................................................................	5
Cassette loading .......................................................................	5
Names of parts and their functions ..........................................	6
Auto reverse operation .............................................................	7
Playback ...................................................................................	7
Recording .................................................................................	8
Compu link control system .......................................................	9
Dubbing ..................................................................................	10
Maintenance ...........................................................................	11
Troubleshooting ......................................................................	11
Specifications ............................................................	Back cover

FEATURES

1.Double cassette mechanism for recording/playback and playback

Recording/playback mechanism in deck B and playback mechanism in deck A both with reverse head system.

2.Full logic mechanism

3.Dolby* HX PRO headroom extension

4.Dolby B & C noise reduction system

5.DDRP (Dynamics Detection Recording Processor) compatibility

The DDRP function is possible only when used with a suitable JVC CD player.

6.2-color FL peak level indicator

7.Digital tape counter respectively for deck A and deck B

8.Synchro start (normal-/high-speed) dubbing

9.Auto tape select mechanism (decks A and B)

10.COMPU LINK-3 compatible

*Dolby noise reduction and HX Pro headroom extension manufactured under license from Dolby Laboratories Licensing Corporation. HX Pro originated by Bang & Olufsen. ``DOLBY'', the double-D symbol and ``HX PRO'' are trademarks of Dolby Laboratories Licensing Corporation.

COMPU LINK control system is the convenient system using COMPU LINK-3/SYNCHRO terminals on the rear panel. (See page 5 and 9.)

CAUTIONS

1. Prevention of Electric Shocks, Fire Hazards and Damage

1)Even when the POWER switch is set to STANDBY, a very small current will flow. To save power and for safety when not using the unit for an extended period of time, disconnect the power cord from the household AC outlet. (for the J version)

Set the POWER switch to the OFF position when not in use. (for the B version)

2)Do not handle the power cord with wet hands.

3)When unplugging from the wall outlet, always grasp and pull the plug, not the power cord.

4)Consult your nearest dealer when damage, disconnection, or contact failure is found with the cord.

5)Do not bend the cord sharply, or pull or twist it.

6)Do not modify the power cord in any manner.

7)Do not remove screws to disassemble the unit and do not touch anything inside the unit.

8)AC power cord (For the J version only)

The AC power cord of this unit has certain one-way direction connections to prevent electric shock. Refer to the illustration for correct connection. (Fig. 1)

Fig. 1

(For CANADA) CAUTION

TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT, FULLY INSERT.

(Pour le CANADA) ATTENTION

POUR EVITER LES CHOCS ELECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQU'AU FOND.

9)Do not insert any metallic objects into the unit.

10)Unplug the power cord when there is a possibility of lightning.

11)If water gets inside the unit, unplug the power cord from the outlet and consult your dealer.

12)Do not block the ventilation holes of the unit so that heat can escape. Do not install the unit in a badly ventilated place.

13)Be sure to unplug the power cord from the outlet when going out or when the unit is not in use for an extended period of time.

This product can be combinated with a DDRP (DYNAMICS DETECTION RECORDING PROCESSOR) system (compact disc player + cassette deck, etc.) to enable setting the optimum recording level automatically. Refer to these instructions for details.

± 3 ±

2. Installation

1)Avoid placing the unit on or adjacent to an amplifier, to prevent hum from being produced by some types of amplifiers. Move the unit to a place not affected by the amplifier. Keep the unit as far as possible from a TV set.

2)Avoid installing the unit in a location subject to ambient temperatures exceeding 40 °C (104 °F) (e.g. direct sunlight, near heaters, etc.) or less than 0 °C (32 °F), excessive humidity, dust or vibrations.

3)If this set is moved suddenly from a cold place (0 °C) to a warm place, it may not function properly because of moisture generated inside the unit. The unit will function properly 30 minutes after being moved.

3. Cleaning the cabinet

Never use benzine or thinner for cabinet cleaning as they may damage the surface finish.

4. Cassette tape

1)Loose tape may become tangled in the tape transport mechanism. Remove slack by winding the tape with a pencil.

(Fig. 2)

Fig. 2

Turn the pencil to tighten the tape.

2)The use of C-120 (120 minutes turn around) or thinner tape is not recommended, since characteristic deterioration may occur.

3)To prevent recordings from being erased accidentally, remove the tab(s) with a screwdriver. Reseal the slots with adhesive tape to erase and re-record after the tabs have been broken off.

Side ``A''

Tab ``B''

Side ``B''

Tab ``A''

Adhesive tape

Fig. 3

4)Do not store cassette tapes where there is a magnetic field (e.g. near a TV, etc.) or in a place subject to high temperatures or humidity.

5.Auto tape select mechanism (decks A and B)

This deck has an Auto Tape Select mechanism which distinguishes between different types of tape from holes in the cassette. After the type of tape has been detected, bias and equalization are set to be suitable for the tape.

· Cassettes with the detection holes:

Metal tape (EQ: 70µs) ........................................	Type IV
CrO2 (chrome) tape (EQ: 70µs) ..........................	Type II
· Cassettes without the detection holes:
Normal tape (EQ: 120µs) .....................................	Type I

Some earlier types of metal and CrO2 (chrome) tapes may not be provided with the detection holes. Avoid using such tapes, since correct equalization characteristics cannot be obtained. Also do not use ferrochrome tapes whose characteristics do not match this unit.

CrO2 tape detection holes

Metal tape detection holes

6. Operations

1)Noise may be generated if the POWER switch is switched OFF with the deck set to playback or recording mode. Before switching the POWER switch OFF, confirm that the (stop) button has been pressed. (B version)

2)Many operations of this unit are performed under the control of a microcomputer. Use the unit only after carefully studying the descriptions and cautions in each item. If operations are done incorrectly, the unit may stop functioning correctly. If this happens, for the J version, unplug the power cord and for the B version, set the POWER switch to OFF, so that the unit can function correctly.

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+ 8 hidden pages

JVC TD-W254 User Manual

INTRODUCTION

CONTENTS

FEATURES

CAUTIONS