KX-W421 KX-W321

Natural Sound Stereo Cassette Deck Platine cassette stro de la srie Natural Sound OWNERS MANUAL MODE DEMPLOI
NATURAL SOUND CASSETTE DECK KX-W421

CLOSE %

DIRECTION

% CLOSE

PLAYBACK

RECORD/PLAYBACK

DECK A

MODE DOLBY NR

OFF/ B/ C

SEARCH EJECT

& DUBBING A # B

NORMAL HIGH

MUTE/SEARCH

REC/PAUSE EJECT

DECK B

STANDBY/ON

PLAY TRIM

O / p / / RELAY

BALANCE

PHONES

NATURAL SOUND CASSETTE DECK KX-W321

REC LEVEL PHONES

Thank you for purchasing this YAMAHA stereo cassette deck.

SAFETY INSTRUCTIONS

7 Wall or Ceiling Mounting The unit should be mounted

CAUTION

RISK OF ELECTRIC SHOCK DO NOT OPEN
to a wall or ceiling only as recommended by the manufacturer.
8 Ventilation The unit should be situated so that its
location or position does not interfere with its proper ventilation. For example, the unit should not be situated on a bed, sofa, rug or similar surfaces that may block the ventilation openings: or placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings.
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.
9 Heat The unit should be situated away from heat
Explanation of Graphical Symbols
sources such as radiators, stoves, or other units that produce heat.
The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert you 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 you to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.
10 Power Sources The unit should be connected to a
power supply only of the type described in the operating instructions or as marked on the unit.
11 Power-Cord Protection Power-supply cords should
be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying attention to receptacles, and the point where they exit from the unit.
12 Cleaning The unit should be cleaned only as
recommended by the manufacturer.
WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
13 No Use Periods The power cord of the unit should be
unplugged from the outlet when left unused for a long period of time.
14 Object and Liquid Entry Care should be taken so
that objects do not fall into and liquids not spilled into the inside of the unit.
1 Read Instructions All the safety and operating instructions should be read before the unit is operated. 2 Retain Instructions The safety and operating
instructions should be retained for future reference.
15 Damage Requiring Service The unit should be
serviced by qualified service personnel when: A. The power-supply cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the unit; or C. The unit has been exposed to rain; or D. The unit does not appear to operate normally or exhibits a marked change in performance; or E. The unit has been dropped, or the cabinet damaged.
3 Heed Warnings All warnings on the unit and in the operating instructions should be adhered to. 4 Follow Instructions All operating and other instructions should be followed. 5 Water and Moisture The unit should not be used near water for example, near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near swimming pool, etc. 6 Carts and Stands The unit should be used only with a cart or stand that is recommended by the manufacturer. 6A A unit and cart combination
should be moved with care. Quick stops, excessive force, and uneven surfaces may cause the unit and cart combination to overturn.
16 Servicing The user should not attempt to service the
unit beyond those means described in the operating instructions. All other servicing should be referred to qualified service personnel.
17 Grounding or Polarization The precautions should be
taken so that the grounding or polarization of the unit is not defeated. This unit is not disconnected from the AC power source as long as it is connected to the wall outlet, even if the unit itself is turned off. This state is called the standby mode. In this state, the unit is designed to consume a very small quantity of power.

FCC INFORMATION (U.S.A.)

1. IMPORTANT NOTICE: DO NOT MODIFY THIS UNIT! This product, when installed as indicated in the instructions contained in this manual, meets FCC requirements. Modifications not expressly approved by Yamaha may void your authority, granted by the FCC, to use the product. 2. IMPORTANT: When connecting this product to accessories and/or another product use only high quality shielded cables. Cables supplied with this product MUST be used. Follow all installation instructions. Failure to follow instructions could void your FCC authorization to use this product in the USA. 3. NOTE: This product has been tested and found to comply with the requirements listed in FCC Regulations, Part 15 for Class "B" digital devices. Compliance with these requirements provides a reasonable level of assurance that your use of this product in a residential environment will not result in harmful interference with other electronic devices. This equipment generates/uses radio frequencies and, if not installed and used according to the instructions found in the users manual, may cause interference harmful to the operation of other electronic devices. Compliance with FCC regulations does not guarantee that interference will not occur in all installations. If this product is found to be the source of interference, which can be determined by turning the unit "OFF" and "ON", please try to eliminate the problem by using one of the following measures: Relocate either this product or the device that is being affected by the interference. Utilize power outlets that are on different branch (circuit breaker or fuse) circuits or install AC line filter/s. In the case of radio or TV interference, relocate/reorient the antenna. If the antenna lead-in is 300 ohm ribbon lead, change the lead-in to coaxial type cable. If these corrective measures do not produce satisfactory results, please contact your local retailer that is authorized to distribute this type of product. If you cannot locate the appropriate retailer, please contact Yamaha Electronics Corp., U.S.A. 6660 Orangethorpe Ave, Buena Park, CA 90620 The above statements apply ONLY to those products distributed by Yamaha Corporation of America or its subsidiaries.
1. This unit is a sophisticated stereo cassette deck. To ensure proper operation for the best possible performance, please read this manual carefully. 2. Choose the installation location of your unit carefully. Avoid placing it in direct sunlight or close to source of heat. Also avoid locations subject to vibration and excessive dust, heat, cold or moisture. Keep it away from sources of hum such as transformers or motors. 3. Do not open the cabinet as this may result in damage to the deck or electrical shock. If a foreign object should get into the deck, contact your local dealer. 4. When removing the power plug from the wall outlet, always pull directly on the plug; never pull the cord itself. 5. Do not apply excessive force when operating switches and knobs. 6. When moving the deck, be sure to first pull out the power plug and remove all cords connecting the deck to other equipment. 7. Do not attempt to clean this unit with chemical solvents as this may damage the finish. Use a clean, dry cloth. 8. Never allow metallic items (e.g. screwdrivers, tools, etc.) to come near the record/playback head assembly. Doing so may not only scratch or damage the heads mirror-smooth finish, it may also change the magnetic characteristics of the heads, causing a deterioration in reproduction quality. 9. Although the record/playback head used in this unit is a high quality head with outstanding reproduction characteristics, it can become dirty through the use of old tapes or from dust accumulation over time. This can have a serious effect on reproduction quality. Clean the heads regularly with one of the commonly available head cleaners or with cleaning solutions as explained later in this manual. 10. Be sure to read the TROUBLESHOOTING section of this manual for advice on common operating errors before concluding that your unit is faulty. 11. Keep this manual in a safe place for future reference. 12. Voltage Selector (General model only) The voltage selector on the rear panel of this unit must be set for your local mains voltage BEFORE plugging in the AC mains supply. (Voltage selector adjustable between 110/120/220/240 V AC.)

Please check the copyright laws in your country to record from records, compact discs, radio, etc. Recording of copyright material may infringe copyright laws.
We Want You Listening For A Lifetime
YAMAHA and the Electronic Industries Association's Consumer Electronics 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 distortion and, most importantly, without affecting your sensitive hearing. Since hearing damage from loud sounds is often undetectable until it is too late, YAMAHA and the Electronic Industries Association's Consumer Electronics We Want You Group recommend you avoid prolonged LISTENING For A Lifetime exposure to excessive volume levels. FOR CANADIAN CUSTOMERS TO PREVENT ELECTRIC SHOCK, MATCH WIDE BLADE OF PLUG TO WIDE SLOT AND FULLY INSERT. THIS CLASS B DIGITAL APPARATUS MEETS ALL REQUIREMENTS OF THE CANADIAN INTERFERENCE-CAUSING EQUIPMENT REGULATIONS.

ESPAOL

ITALIANO

SVENSKA

DEUTSCH

FRANAIS

ENGLISH
CAUTION: READ THIS BEFORE OPERATING YOUR UNIT.

TABLE OF CONTENTS

FEATURES... 4 CONNECTIONS... 5 NOTES ON THIS MANUAL.. 5 PLAYBACK (Common to DECKs A and B).. 6 BASIC OPERATION... 6 SELECTION SEARCH.. 8 RELAY PLAYBACK.. 9 PLAY TRIM CONTROL ADJUSTMENT (KX-W421 only) 9 RECORDING... 10 BASIC OPERATION.. 10 REC MUTE OPERATION... 12 REC RETURN OPERATION... 12 DUBBING (From DECK A to DECK B).. CASSETTE TAPES... MAINTENANCE... OPTIONAL REMOTE CONTROL TRANSMITTER.. TROUBLESHOOTING.. SPECIFICATIONS.. 16 17

FEATURES

High Quality Hard Permalloy Recording/Playback Head in Deck B and Playback Head in Deck A Dolby B/C Noise Reduction Play Trim Control for improved playback compatibility with other decks (KX-W421 only) Auto Tape Selector Dolby HX Pro Dynamic Bias Servo (KX-W421 only) Relay Playback from DECK A to DECK B Selection Search Recording Mute Function Rec Return Operation Easy Dubbing Operation at Selectable Speed (Normal/ High) Peak Level Meters with Peak Hold Function Remote Control Capability with Optional Remote Control Transmitter
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.

CONNECTIONS

To an AC outlet Main operation buttons of DECK B
LINE IN-LINE OUT REC PLAY

REC OUT TAPE PB L

Amplifier or receiver
In this manual, the main operation buttons of the front panel are indicated based on DECK B when the operation is common to both DECKs A and B. Since the locations of the buttons of DECK A and DECK B are the same, you can easily find the desired button even when operating DECK A. This manual covers two models. In most cases, however, only model KX-W421 is shown in the example illustrations.

Cassette Stabilizer

O / p / / RELAY OFF/ C

Example: KX-W421

Main operation buttons of DECK A

NOTES ON THIS MANUAL

REAR PANEL CONNECTIONS Make sure that power to both the deck and your amplifier/receiver is turned off before making any connections. The White plug on the paired connecting cables corresponds to the Left channel and the Red plug corresponds to the Right channel. Make sure that the left and right channel connections are properly made, and that the plugs are inserted firmly. The LINE OUT/PLAY jacks on the deck should be connected to the TAPE PB (Playback/Input) jacks on your amplifier/receiver, and the LINE IN/REC jacks on the deck should be connected to the REC OUT (Recording/Output) jacks on your amplifier/receiver. The LINE OUT terminals on this unit are numbered 3 and the LINE IN jacks are numbered 4. When connecting this unit to a YAMAHA amplifier or receiver whose terminals are numbered 1, 2, 3, 4. (etc.), connect this unit's LINE OUT terminals to the input terminals numbered 3 and connect this unit's LINE IN terminals to the output terminals numbered 4 on the rear panel of the amplifier or receiver. Connect the power cord to an AC wall outlet or to an AC outlet on the rear panel of your amplifier/receiver (if provided).

(U.S.A. model)

PLAYBACK (Common to DECKs A and B)
Preparation for playback Turn on the STANDBY/ON switch. Set your amplifier or receiver to cassette deck function mode.
BASIC OPERATION - To play back a cassette tape

RESET % CLOSE

SEARCH

RECORD/PLAYBACK &

DUBBING A # B

REC/PAUSE PLAY TRIM

0 BALANCE 0

DOLBY NR

EJECT
Insert the cassette with the exposed tape side facing down. (The side facing you is called the forward side and the opposite side is called the reverse side.) To close the compartment, push the section of the compartment door marked % CLOSE until it locks shut.
Refer to the following description.

MODE /[//RELAY

Select the tape running direction for DECK A or B. Each time this button is pressed, the tape running direction changes between forward (#) and reverse (@), and the corresponding indicator lights on the display.

To fast forward or rewind the tape When the tape running indicator # is lit: Pressing the button fast forwards the tape while pressing the ! button rewinds the tape. When the tape running indicator @ is lit: Pressing the ! button fast forwards the tape while pressing the button rewinds the tape.
To stop playback Press the & button. To remove the cassette tape, press the EJECT button. The cassette compartment door opens. To set the unit to standby mode, press the STANDBY/ON button. To set the counter reading to 0000 Press the RESET button. Use the tape counter to aid in locating a point on a tape (0000 to 9999).
DOLBY NR selector setting (in step 2) Be sure to set the DOLBY NR selector according to the system used for recording. OFF: For a tape recorded with DOLBY NR OFF. B: For a tape recorded with DOLBY B NR. C: For a tape recorded with DOLBY C NR. REVERSE MODE selector setting (in step 3) The auto reverse function allows the tape running direction be reversed automatically. Select an auto reverse mode ( , , or RELAY ) or manual reverse mode ). ( : When playback or fast forwarding (or rewinding) of one side of a tape is finished, the deck stops at the end of the tape.
: Both sides of the tape are played back. After playing, the deck stops at the end of the tape. (When the tape running direction is set to , only the reverse side is played.) : Both sides of the tape are repeatedly played back (up to 8 times).
RELAY : Cassette tapes loaded in DECKs A and B are played back sequentially. (See RELAY PLAYBACK on page 9.)

Display during playback

The A or B indicator shown in the display represents the last deck operated. Tape counter Tape running direction indicator (DECK A) Tape running direction indicator (DECK B) Tape counter

KX-W421/ KX-W321

RELAY NORM HIGH

B C REC

Peak level meters Indicate the peaks of the signal levels during recording and playback over a 30 dB to +6 dB range. There are separate meters for each left and right channel. These level meters have a peak hold function which holds the peak level for about 1.5 seconds.

To adjust the volume level Use the volume control of the amplifier or receiver. To use headphones Insert the headphones plug into the PHONES jack. Since the sound is also heard from the speakers, operate the amplifier to cut off the sound from the speakers for private listening.
Note Never press the EJECT button when the tape is in motion.
SELECTION SEARCH - To play back a desired selection by searching for the beginning of the selection
To search for the next selection When the # tape running indicator is lit: MUTE/SEARCH When the @ tape running indicator is lit: ! MUTE/SEARCH

Press simultaneously.

To search for the beginning of the current selection When the # tape running indicator is lit: !
When the @ tape running indicator is lit:
To search for the selection located before the current selection Operate the following buttons when the beginning of the current selection is being played. When the # tape running indicator is lit: !
Notes The blank interval between selections must be at least 4 seconds long. Selection search may not operate properly with tapes recorded at a low recording level or which have excessive noise.
RELAY PLAYBACK - To play DECK A and DECK B sequentially
When the MODE button is set to RELAY : DECK A (forward side \ reverse side) \ DECK B (forward side \ reverse side)

Display

Up to 8 times
When the MODE button is set to DECK A (forward side \ reverse side)
: DECK B (forward side \ reverse side)
: When the MODE button is set to DECK A (forward side \ reverse side) DECK B ( forward side \ reverse side) When the tape running direction is set to , only the reverse side is played. When the MODE button is set to : DECK A (forward side or reverse side)
DECK B (forward side or reverse side)
PLAY TRIM CONTROL ADJUSTMENT ( KX-W421 only)
When the level of high frequencies is either over emphasized or absent while playing a tape recorded on another cassette deck, adjust the high frequency response with the PLAY TRIM control.
When high frequencies are too loud, attenuate the high frequencies.

10 dB 100

When high frequencies are too soft, boost the high frequencies.
Flat High-frequency sound is too soft.
High frequency sound is too loud.
Load the cassette tapes into DECKs A and B, start playback from DECK A. The playback patterns differ according to the setting of the MODE button. Refer to the following.

REC/PAUSE

RECORDING
Preparation for recording Turn on the STANDBY/ON switch. Set your amplifier or receiver to cassette deck function mode.
BASIC OPERATION - To record a program source

DIRECTION RESET % CLOSE

Insert the cassette into DECK B with the exposed tape side facing down. (The side facing you is called the forward side and the opposite side is called the reverse side.) To close the compartment, push the section of the compartment door marked % CLOSE until it locks shut.

Select the tape running direction. (Press the DIRECTION button for DECK B.) Each time the button is pressed, the tape running direction changes between forward (#) and reverse (@), and the indicator lights on the display.
The REC indicator lights on the display. The deck enters the Rec/Pause mode.
Play the program source to be recorded and adjust the recording level and balance. (KX-W321 does not have a REC BALANCE control.)

Recording starts.

DOLBY NR selector setting (in step 2) Set the DOLBY NR selector according to your purpose. OFF: No noise reduction. B: For recording the sources with Dolby B NR. C: For recording the sources with Dolby C NR. Dolby noise reduction is an extremely effective method of reducing undesirable background hiss on tapes. This unit incorporates both Dolby B NR and the newer Dolby C NR system. Dolby C NR is approximately twice as effective as the earlier Dolby B NR. REVERSE MODE selector setting (in step 3) The auto reverse function allows the tape running direction to be reversed automatically. Select the auto reverse mode ( ) or manual reverse mode ( ). : When recording on one side of a tape is finished, the deck stops at the end of the tape. :Both sides of a tape are recorded. After recording, the deck stops at the end of the tape. When the tape running direction is set to , only the reverse side is recorded. If you select or automatically switches to
RELAY , the reverse mode in step 5.
Setting the recording level (in step 6) Play the loudest passage of the source to be recorded and watch the meter readings. Adjust the REC LEVEL control so that the highest peak reaches +4 of the optimum recording level. Normally, it is best to adjust the REC BALANCE control (KX-W421 only) such that the left and right meter readings are even.

Display during recording

The A or B indicator shown in the display represents the last deck operated.
Tape counter Use the tape counter to aid in locating a point on a tape (0000 to 9999). To set the counter reading to 0000, press the RESET button. MODE indicator DOLBY B/ C indicator REC indicator

dB 8 6

To stop recording: Press the & button.
To stop recording temporarily: Press the REC/PAUSE button. To resume recording, press the PLAY button.
Tape running direction indicator
REC MUTE OPERATION - Inserting a blank space during recording

During recording:

A 4-second blank interval is automatically recorded on the tape and then the deck enters Rec/Pause mode. If a blank interval longer than 4 seconds is desired, keep pressing for as long as you want. When the MUTE/ SEARCH button is released, the deck enters Rec/Pause mode after making a 4-second blank interval. To resume recording, press the PLAY button. If a blank interval shorter than 4 seconds is desired, press the PLAY button at the desired point during Rec mute mode. Recording will be resumed from that point.

PLAY TRIM control adjustment (KX-W421 only) For normal use, set the PLAY TRIM control to the center position. When the high frequencies sound is too noticeable or too weak while monitoring the sound of DECK B, compensate the high frequency response with the PLAY TRIM control before dubbing. The compensated sound can be dubbed onto DECK B. As the compensation result depends on the quality of the tape loaded in DECK A, the monitored sound cannot be recorded as it is. Refer to PLAY TRIM CONTROL ADJUSTMENT on page 9.
Note During dubbing, Dolby NR is automatically set to off and the recorded tape can be dubbed as is. (When the tape to be dubbed is recorded with Dolby NR, this effect is also dubbed.)

CASSETTE TAPES

CASSETTE TAPES There are many different types of cassette tapes available. However, they all conform to standard specifications so any brand may be used with the deck. Classification of Cassette Tapes by Formulation: Cassette tapes are available in four basic types depending on their formulation, or type of magnetic material and manufacturing process. These four types are commonly known as Normal (Type I/NORM), Chrome (Type II/HIGH <CrO2>), Ferrichrome (Type III/FeCr), and Metal (Type IV/ METAL), and they each require specific tape deck adjustments for optimum performance. * YAMAHA does not recommend the use of 120 minute length cassettes since the extreme thinness of the tape makes them susceptible to mechanical and recording problems. PROTECTING YOUR RECORDINGS All cassette tapes are provided with erasure protection holes to prevent accidental erasure of recorded contents. There is a small tab covering the hole on each side of the cassette, and it should be broken off after recording the tape. Without this tab covering the hole, it is impossible to record onto that tape. Thus, you can safely protect a recording for as long as you wish without fear of accidental erasure. Should you wish to use a cassette tape protected in this way for recording, simply covering the hole with adhesive tape will permit erasure and re-recording. When using Chrome (Type II/HIGH <CrO2>) or Metal (Type IV/METAL) tapes, make sure you do not cover the hole intended for the Auto Tape Selector operation.

AUTO TAPE SELECTOR DETECTION SLOTS The deck has a built-in Auto Tape Selector which automatically adjusts for the proper bias, level and equalization according to the tape formulation all you have to do is to load a cassette and the Auto Tape Selector does the rest. The Auto Tape Selector determines which type of tape is loaded by sensing detector slots in the top of the tape shell. Each tape formulation has its own characteristic hole markings standardized by the tape industry. Early model Metal (Type IV/Metal) tape formulation cassette shells do not have the slots for Auto Tape Selector operation. As a result, early model Metal type tapes recorded on another deck will be played back with the deck at the Chrome (Type II/HIGH <CrO2>) settings. YAMAHA does not recommend using this kind of tape. The deck does not have the required setting for Ferrichrome (Type III/FeCr) tape, since this tape formulation is not widely used. Should you use a Ferrichrome tape, it will be recorded and played back at the Normal (Type I/NORM) settings, which will result in an unnatural high frequency emphasis. This effect may be compensated for somewhat by adjusting the PLAY TRIM control and/or the tone controls of your amplifier/receiver during playback.

TYPE II TYPE IV

TAKING UP SLACK IN THE TAPE As a precaution against tape entanglement and damage, remove any slack in the tape before inserting cassettes into the deck. This is accomplished by inserting a pencil, pen or similar object into one of the spools and gently winding it until all the slack is removed. You do not have to wind it too tightly. Be careful not to touch the tape part itself. It is very delicate and touching it may damage the tape and its recorded contents.

Detector slots

STORING CASSETTES After putting a cassette tape back into its case, store it in a location away from exposure to direct sunlight, humidity, high temperatures, and magnetic fields (away from television sets, speakers, etc.). High temperatures and humidity will damage the tape itself, while exposure to magnetic fields may cause a loss of recorded material. Avoid touching the tape surface with your fingers, since dirt or finger oil will contaminate the decks heads.

MAINTENANCE

CLEANING OF THE TAPE PATH Continued high quality performance of your deck is dependent upon periodic cleaning of the heads, capstan, pinch roller, and all surfaces over which the tape travels. Normal use will cause an accumulation of dirt and dust on the heads, capstans, and pinch rollers. This can lead to poor sound quality, drop outs (intervals with no sound), unsteady tape speed, loss of high frequency response, etc. Thus, clean the heads and all surfaces over which the tape travels with a commercially available cleaning cassette and fluid type cleaner. DECK B
Heads Capstan Pinch roller Capstan Pinch roller
DEMAGNETIZATION After 20-30 hours of use, enough residual magnetism will build up on the heads to cause poor high frequency reproduction. At this time you should use a commercially available cassette tape-type head demagnetizer. When cleaning the tape path or demagnetizing the heads, be sure to follow carefully the instructions of the concerning materials such as cleaning fluid or head demagnetizer.
OPTIONAL REMOTE CONTROL TRANSMITTER
With the optional remote control transmitter RKX1, you can operate this unit at your listening position. For details, refer to the instruction manual supplied with the remote control transmitter. REMOTE CONTROL OPERATION RANGE Example: KX-W421

Remote sensor

SINGLE DECK

INTRO SCAN

DOUBLE DECK
DUBBING DECK A/B DIR A DIR B

COUNTER

7 m (23 feet)

REC/PAUSE REC MUTE

TROUBLESHOOTING
If your cassette deck fails to operate normally, check the following table. It lists common operating errors and simple measures which you can take to correct the problem. If it cannot be corrected, or the symptom is not listed, disconnect the decks power cord and contact your authorized YAMAHA dealer or authorized service center for help.
Tape doesnt move in recording or playback. If it happens that this unit does not work normally.
Power plug is not properly plugged in. Cassette shell is warped or damaged. There is an influence of strong external noise (lightning, excessive static electricity, etc.) or a misoperation was performed while using this unit. No cassette tape loaded. Protective tabs are broken off. Head is dirty. Head is magnetized. Tape is damaged or of poor quality.

Reinsert plug properly. Do not play damaged tapes. Turn the unit off and disconnect the AC power from the AC outlet. After about 30 seconds have passed, connect the power and try again. Load a cassette tape. Change tape or cover protective hole with adhesive tape. Clean head. Demagnetize head using head demagnetizer. Change to a different tape. Replace with a fresh tape. A warped cassette shell cannot be fixed. Replace with another tape and test. Check input level with signal level meter and use lower rec level when recording. Check and secure connections. Clean head. Demagnetize head with head demagnetizer. Change to better tape. Check input and output connections and reinsert properly. Move deck away from electrical appliances (TV, fluorescent light, electric blanket, etc.). Clean capstan and pinch roller, or change to better tape. Rewind tape. Insert pencil in hole in cassette shell and turn to take up slack. Adjust REC LEVEL control. Change tape or cover protective hole with adhesive tape. Blank sections must be at least 4 seconds long. No remedy No remedy Play back in appropriate Dolby NR position.
REC/PAUSE button fails to function.
Sounds become faint and sometimes inaudible.
Recorded sound is distorted.
Tape is bad (stretched, deformed, etc.). Cassette shell is warped. Recording level is too high. Faulty connection between deck and stereo amplifier/receiver. Head is dirty. Head is magnetized. Worn out or poor quality tape. Connection(s) improperly made.
Tape is playing back, but no sound is heard. Excessive noise.
Affected by external electrical noise.
Excessive wow (wavering of the sound).
Dirty capstan, pinch roller, etc., or poor tape. Tape is wound unevenly. Slack tape, or tape spillage wound around capstan. REC LEVEL control is set to too low. Protective tabs are broken off. Blank section is too short. Recorded section has low-level portions. Conversation, etc. has been recorded.
Tape stops in the middle of recording or playback. Fails to record.
Search does not operate correctly.
High frequencies in the playback sound are emphasized and unpleasant to listen to, and noise level (hiss) is also high.
Dolby NR-recorded tape is played back in OFF position.
Playback sound is muffled and high frequencies are inaudible.
Normally-recorded tape is played back in Dolby NR. Heads are dirty. Heads are magnetized. Basic levels are different for different cassette decks.

Play back in OFF position. Clean heads and carry out demagnetization with head demagnetizer. This is not a fault.
When playing back tapes recorded on other decks, meter deflections are greater (smaller) than when recorded. The remote control transmitter cannot be operated.
The batteries are exhausted. The remote control transmitter is operated from an incorrect distance or angle. The remote control sensor is lighted strongly.
Replace batteries. Operate it from less than 7 meters (about 23 ft.) and 30. Place the unit away from the strong light.

SPECIFICATIONS

Type.. Auto reverse 4-track, 2-channel recording and playback stereo double cassette deck Motors... DC servo motor x 2 (main) Heads.. Recording/playback: Hard Permalloy x 1 Erase: Double-gap Ferrite x 1 Playback: Hard Permalloy x 1 Rapid Transport.. 100 sec. (C-60) Wow and Flutter WRMS... 0.08% W.Peak.. 0.15% Signal-to-Noise Ratio (Dolby NR off)... 58 dB (Dolby B NR on).. 66 dB (Dolby C NR on).. 74 dB Frequency Response (20 dB) <KX-W421> Type I/Normal.. 20 ~ 17,000 Hz 3 dB Type II/High (CrO2).. 20 ~ 18,000 Hz 3 dB Type IV/Metal.. 20 ~ 20,000 Hz 3 dB <KX-W321> Type I/Normal.. 20 ~ 16,000 Hz 3 dB Type II/High (CrO2).. 20 ~ 17,000 Hz 3 dB Type IV/Metal.. 20 ~ 19,000 Hz 3 dB Harmonic Distortion KX-W421.. less than 0.8% KX-W321.. less than 1.0% Input Sensitivity/Impedance Line.. 100 mV/43 k-ohms Output Level Line... 570 mV/1.4 k-ohms Phones... 0.25 mV/8 ohms Channel Separation (1 kHz).. more than 40 dB Crosstalk (125 Hz).. more than 55 dB

GENERAL

Power Supply U.S.A. and Canada model.. 120 V, 60 Hz Europe and U.K. model. 230 V, 50 Hz Australia model.. 240 V, 50 Hz General model.. 110/120/220/240 V, 50/60 Hz Power Consumption KX-W421.. 14 W/7 W (Standby) KX-W321 U.S.A. and Canada model. 11 W/7 W (Standby) Other models.. 12 W/7 W (Standby) Dimensions (W x H x D).. 435 x 146 x 279 mm (17-1/8" x 5-3/4" x 11") Weight... 5.0 kg (11 lbs.) Accessory Audio cord... 1 pair
* Specifications subject to change without notice.

salle 150 equipment

Sound mixer Stage monitor Microphones Microphones Microphones Microphones Microphones Microphones Microphones Minidisc rec Lecteur CD Tape rec Light console Theater spotlights Theater spotlights Theater spotlights Theater spotlights Theater spotlights Theater spotlights Theater spotlights Video projector Screen Camera Video mixer
YAMAHA MG32/14fx REAL KTWO-15MP 15'' 3 Way 400W AES ( 2x2 parallel ) Sennheiser e835 Dynamic Instrument Microphone Sennheiser e840 Dynamic Vocal Microphone Sennheiser Evolution EW 135-G2-A-EU Wireless Vocal Set Sennheiser Evolution EW 152-G2-A-EU Wireless Head Set Sennheiser Evolution EW 122-G2-A-EU Wireless Presentation Set Sennheiser K6 + ME62 Sennheiser Mzh 41 Goosneck Microphone Sony MDS-JE480 JB System CD570 100*2 CD Player (autopause) YAMAHA KX-W321 dual Showtec Stage Master Pro DMX Light Desk Crane Geni Oby-600 Professional Moving Head HMI575 575W/750W 10-18 Zoom Profile 575W/750W 15-30 Zoom Profile 1000W/1200W Fresnel Theatre Spot 1000W/1200W Pc Theatre Spot 1000W Par64 500W Cyclorama Floodlight Spot Panasonic PT-5600E, 5000 lumens Euroscreen Major Pro 6045 600*450 Motorized Projection Screen Syscom Dsc-270Si Hi Speed Dome Camera 27x Zoom 480 Tvline Datavideo se500 4ch
Conference system 5 delegate + 1 moderator