ST-610L - Récepteur audio TECHNICS - Notice d'utilisation et mode d'emploi gratuit

Type de produit	Récepteur audio stéréo
Marque	Technics
Modèle	ST-610L
Dimensions (L x H x P)	430 x 140 x 370 mm
Poids	8,5 kg
Alimentation	220-240 V, 50/60 Hz, consommation 150 W
Puissance de sortie	2 x 50 W RMS sous 8 ohms
Réponse en fréquence	20 Hz - 20 kHz ±0,5 dB
Distorsion harmonique totale	≤ 0,05 %
Entrées audio	Phono (MM), Tuner, Aux, 2 x Magnétophone
Sorties audio	Enceintes (A/B), Casque, Magnétophone
Fonctions principales	Amplificateur stéréo, tuner FM/AM, contrôle de tonalité (basses/aigus), loudness, filtre subsonique, sélecteur d'entrée, monitoring bande
Entretien et nettoyage	Débrancher l'appareil avant nettoyage. Utiliser un chiffon doux et sec. Ne pas utiliser de produits abrasifs ou solvants.
Sécurité	Ne pas exposer à l'humidité ou à la pluie. Assurer une ventilation suffisante. Ne pas obstruer les fentes d'aération.
Pièces détachées et réparabilité	Contacter un service agréé Technics pour toute réparation. Pièces disponibles via réseau de distribution.
Informations générales	Récepteur audio haute fidélité de la série L, compatible avec enceintes 4-16 ohms. Tuner FM stéréo avec 16 présélections.

FOIRE AUX QUESTIONS - ST-610L TECHNICS

Comment brancher des enceintes sur le Technics ST-610L ?

Utilisez les borniers à vis à l'arrière. Connectez le fil positif (+) à la borne rouge et le négatif (-) à la borne noire. Veillez à respecter l'impédance minimale de 4 ohms.

Comment régler la tonalité (basses et aigus) ?

Utilisez les boutons BASS et TREBLE sur la face avant. Tournez dans le sens horaire pour augmenter, antihoraire pour diminuer.

Que faire si l'appareil ne s'allume pas ?

Vérifiez que le cordon d'alimentation est bien branché et que la prise de courant fonctionne. Assurez-vous que l'interrupteur POWER est en position ON.

Comment utiliser la fonction 'Loudness' ?

Appuyez sur le bouton LOUDNESS pour activer une compensation des basses à faible volume. Relâchez pour désactiver.

Comment mémoriser une station de radio FM ?

Syntonisez la station désirée, puis appuyez sur le bouton MEMORY et, dans les 5 secondes, sur l'une des touches de présélection (1 à 16).

Puis-je brancher un platine vinyle ?

Oui, connectez-le à l'entrée PHONO. Assurez-vous que votre platine est équipée d'une cellule magnétique (MM).

Comment nettoyer le récepteur ?

Débranchez l'appareil. Utilisez un chiffon doux légèrement humide pour essuyer la surface. Ne jamais utiliser de produits chimiques ou de nettoyants abrasifs.

Que signifient les voyants 'FM STEREO' et 'FM MUTE' ?

Le voyant FM STEREO s'allume lors de la réception stéréo. FM MUTE indique que le silencieux est activé pour éliminer le bruit entre les stations.

Comment connecter un magnétophone ?

Utilisez les entrées/sorties TAPE 1 ou TAPE 2 à l'arrière. Connectez les câbles RCA en respectant les canaux gauche et droit.

Quelle est la puissance de sortie maximale ?

Le Technics ST-610L délivre 2 x 50 Watts RMS sous 8 ohms, avec une distorsion inférieure à 0,05 %.

MODE D'EMPLOI ST-610L TECHNICS

Technics

QUARTZ Synthesizer

LW/MW/FM Stereo Tuner

ST-61OL

OPERATING INSTRUCTIONS

3D rendered image of a computer monitor case with visible ports and control buttons (no text or symbols)

These instructions also apply to units of different colour.

Notes:

• Specifications differ according to the area code.
  • The "EB" area code, for example, indicates United Kingdom specifications.
  • The "EB" indication is shown on the packing case and serial number tag.

Before operating this unit, please read these instructions completely.

Dear Stereo Fan

We want to thank you for selecting this product and to welcome you to the growing family of satisfied Technics product owners around the world.

We feel certain you will get maximum enjoyment

from this new addition to your home.

Please read these operating instructions carefully, and be sure to keep them handy for convenient reference.

Contents

• Accessories.... 2
• Technical Specifications.... 2
• Suggestions for Safety 3
•For United Kingdom 3
- Connections 4
• Front Panel Controls and Their Functions 5

• Memory Presettings 6
•Listening to Radio Broadcasts 7
• Maintenance 7
*Troubleshooting Guide .... Back cover

Accessories

(Refer to page 4.)

- AC power supply cord..... 1

• Stereo connection cable..... 1

* FM Indoor antenna.... 1

- Attachment plug .... 1

• AM loop antenna ..... 1

• AM antenna holder..... 1

- Screws 2

Technical Specifications

(DIN 45 500)

FM TUNER SECTION

Frequency range
	87.50~108.00 MHz (50 kHz-steps)
Sensitivity	1.5 μV (IHF, usable)
S/N 30 dB	1.3 μV (75Ω)
S/N 26 dB	1.2 μV (75Ω)
S/N 20 dB	0.9 μV (75Ω)
IHF 46 dB stereo quieting sensitivity	28 μV/75Ω
Total harmonic distortion MONO	0.15%
STEREO	0.3%
S/N MONO	70 dB (78 dB, IHF)
STEREO	65 dB (70 dB, IHF)
Frequency response
20 Hz~15 kHz, +0.5 dB~-1.5 dB
Alternate channel selectivity
normal ±400 kHz	65 dB
Capture ratio	1.0 dB
Image rejection at 98 MHz	45 dB
IF rejection at 98 MHz	90 dB
Spurious response rejection at 98 MHz	75 dB
AM suppression	55 dB
Stereo separation 1 kHz	40 dB
10 kHz	30 dB

Carrier leak	19 kHz	-30 dB (-35 dB, IHF)
	38 kHz	-45 dB (-50 dB, IHF)
Channel balance (250 Hz~6,300 Hz)		±1.5 dB
Limiting point		1.2 μV
Bandwidth	IF amplifier	180 kHz
	FM demodulator	1000 kHz
Antenna terminals		75Ω (unbalanced)

AM TUNER SECTION

Frequency range
MW	522 kHz~1611 kHz (9 kHz-steps)
	530 kHz~1620 kHz (10 kHz-steps)
LW	155 kHz~353 kHz (9 kHz-steps)
	153 kHz~351 kHz (-2 kHz shift)
Sensitivity (S/N 20 dB)	MW 20 μV, 300 μV/m
	LW 50 μV
Selectivity (±9 kHz)	MW (at 999 kHz) 50 dB
	LW (at 254 kHz) 50 dB
Image rejection	MW (at 999 kHz) 40 dB
	LW (at 254 kHz) 40 dB
IF rejection	MW (at 999 kHz) 60 dB
	LW (at 254 kHz) 60 dB

GENERAL

Output voltage	0.3 V (0.6 V IHF)
Power consumption	9 W
Power supply	AC 50 Hz/60 Hz, 240 V
Dimensions (W × H × D)	430 × 69 × 290 mm(16-15/16" × 2-23/32" × 11-7/16")
Weight	2.4 kg (5.3 lb.)

Notes:

1. Specifications are subject to change without notice.
   Weight and dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum analyzer (H.P. 3045 system).

Suggestions for Safety

Use a standard electrical AC wall outlet

1. Use from an AC power source of high voltage, such as for air conditioners, is very dangerous.

Be extremely careful not to make a connection to the electrical outlet for a large air conditioner or central-heating unit which uses high voltage, because there is the possibility of fire.

1. A DC power source cannot be used.

Be sure to check the power source carefully, especially on a ship or other place where DC is used.

■ Connection and removal of the power cord plug

1. Wet hands are dangerous.

A dangerous electric shock may result if the plug is touched by wet hands.

1. Don't pull the power cord.

Always grasp the plug; never pull the cord itself.

■ Never attempt to repair or reconstruct this unit

A serious electric shock might occur if this unit is repaired, disassembled or reconstructed by unauthorized persons, or if the internal parts are accidentally touched.

For families with children

Never permit children to put anything, especially metal, inside this unit. A serious electric shock or malfunction could occur if articles such as coins, needles, screwdrivers, etc. are inserted through the ventilation holes, etc. of this unit.

Turn off after use

If the unit is left for a long time with the power on, this will not only shorten its useful operation life, but may also cause other unexpected trouble.

If water is spilled on the unit

Be extremely careful if water is spilled on the unit, because a fire or serious electric shock might occur. Immediately disconnect the power cord plug, and consult with your dealer.

Place the unit where it will be well ventilated, and away from direct sunlight

Place this unit at least 10 cm (4") away from wall surfaces, etc., and away from direct sunlight.

Keep the unit away from heaters, etc.

Heat can damage the external surfaces as well as internal circuits and components.

■ Avoid spray-type insecticides

Insecticides might cause cracks or "cloudiness" in the cabinet and plastic parts of this unit. The gas used in such sprays might, moreover, be ignited suddenly.

Never use alcohol or paint thinner

These and similar chemicals should never be used, because they may damage the finish.

If trouble occurs

If, during operation, the sound is interrupted or indicators no longer illuminate, or if abnormal odor or smoke is detected, immediately disconnect the power cord plug, and contact your dealer or an Authorized Service Center.

For United Kingdom

("EB" area code model only)

The "EB" indication is shown on the serial number tag.

Important

THE WIRES IN THIS MAINS LEAD ARE COLOURED IN ACCORDANCE WITH THE FOLLOWING CODE.

BLUE: NEUTRAL

BROWN: LIVE

As the colours of the wires in the mains lead of this apparatus 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.

Connections

The Indication AM used here includes both MW and LW.

Note: An outdoor antenna should be installed by a competent technician only.

FM outdoor antenna

(Necessary in mountainous regions, inside reinforced-concrete buildings, etc.)

FM indoor antenna included

• Attach to a wall (using tack or tape) facing in direction of best reception.
  • Tack should not contact internal antenna wire.
  • For best reception sound quality, an FM outdoor antenna is recommended.
• Disconnect this antenna if an FM outdoor antenna is installed.

AM outdoor antenna option

(Necessary in mountainous regions, inside reinforced-concrete buildings, etc.) Use 5 \~ 12 m (16 \~ 40 ft.) of vinyl-covered wire horizontally at the window.

AM loop antenna (measured)

If this antenna is not properly installed, AM broadcasts will not be received. Be sure to connect the AM loop antenna even when an outdoor antenna is used.

Installation of the AM loop antenna

1. Pay attention to the following points when attaching the antenna.

2. Do not attach it horizontally (to do so would impair reception).

3. Do not attach it close to metal surfaces (to do so would result in noise).

When attaching the antenna to a wall, column or rack

Find the height and direction of the antenna where reception is best and then fix it vertically to the wall, rack, etc.

• Do not attach it close to power cords, speaker wires, etc. (to do so would result in noise).

• Do not attach it close to a tape deck (when the tape deck is being used, chirping or beeping sounds may be received).

• Connect the AM loop antenna to the AM antenna terminals located on the rear panel of this unit.

When attaching the antenna to this unit

This type of installation may cause impaired reception or result in signal noise. If possible, attach the antenna to the rack, a wall, or a column.

Move the antenna toward the right or left to find the point of best reception.

Front Panel Controls and Their Functions The Indication AM used both MW and LW.

Memory Presettings

The Indication AM used here Includes both MW and LW.

With this unit you may preset as many as 24 radio broadcast stations: FM/AM random presetting. After broadcast stations have been preset as described below, any desired station can be quickly and easily selected.

Note:

If a new broadcasting station is preset into a channel, the broadcasting station which was previously entered in that channel will be automatically erased.

“Most-recent” memory

The most-recent memory is a system by which the unit "remembers" the FM or AM broadcast station last heard when this unit is turned off, and automatically tunes to that station the next time the power is turned on.

“Back-up” memory

This is the function which preserves the preset memory and most-recent memory functions. In the event of a power failure, or if the power cord of the tuner is disconnected from the electric outlet, the back-up memory will preserve the preset memory and most-recent memory functions for as long as approximately one week.

If the memory setting is erased

The memory settings will be erased in the following cases.

For example:

1) If the power cord is disconnected from the electric outlet,
2) If an audio timer is used and the timer does not operate the tuner for a week or longer.
3) If a power failure occurs, etc.

If any of the above occurs, the memory will have to be reset. The memory in the tuner is maintained by a capacitor. If the power supply is interrupted for a week or longer, set the power switch of the tuner to the "on" position for an hour or more in order to recharge the capacitor. Then reprogram the memory.

Listening to Radio Broadcasts

Have you completed the memory presettings (page 6)?

1 Turn the amplifier on, and set it for listening to radio broadcasts.

Station Memory File Sheet

CH. 1	CH. 2	CH. 3	CH. 4	CH. 5	CH. 6	CH. 7	CH. 8	CH. 9	CH. 10	CH. 11	CH. 12
CH. 13	CH. 14	CH. 15	CH. 16	CH. 17	CH. 18	CH. 19	CH. 20	CH. 21	CH. 22	CH. 23	CH. 24

Maintenance

To clean this unit, use a soft, dry cloth. If the surfaces are extremely dirty, use a soft cloth,"ipped into a soap-and-water solution or a weak detergent solution. Wring the cloth well before wiping the unit.

Wipe once again with a soft, dry cloth. Never use alcohol, paint thinner, benzine, nor a chemically treated cloth to clean this unit. Such chemicals may damage the finish of your unit.

Troubleshooting Guide

Before requesting service for this unit, check the chart below for a possible cause of the problem you are experiencing. Some simple checks or a minor adjustment on your part may eliminate the problem and restore proper operation.

If you are in doubt about some of the check points, or if the remedies indicated in the chart do not solve the problem, refer to the directory of Authorized service centers (enclosed with this unit) to locate a convenient service center, or consult your Technics dealer for instructions.

Problem

Probable cause(s)

Suggested remedy

While listening to FM broadcasts
An unusual hissing noise is heard when listening to the broadcast in stereo, but not heard when listening monaurally.	A slight noise may be heard because the method used for modulation of FM stereo broadcasts is different than that used for monaural broadcasts.	Try reducing the treble sound by turning the treble tone control of the amplifier.Set the FM mode selector to the mono position. (Note that the broadcast will then be heard as monaural sound.)Try changing the location, height and/or direction of the antenna.If an indoor antenna is being used, change to an outdoor antenna.Try using an antenna with more elements.
Noise is excessive in both stereo and monaural broadcasts.	Poor location and/or direction of the antenna.Transmitting station is too far away.
The FM stereo indicator or quartz lock indicator flickers, without completely illuminating.	Poor location and/or direction of the antenna.Transmitting station is too far away.	Try changing the location, height and/or direction of the antenna.If an indoor antenna is being used, change to an outdoor antenna.Try using an antenna with more elements.
Excessive distortion in the sound of stereo broadcasts.	Nearby building or mountain.(Multi-path distortion is being caused by the mutual interference of broadcast signals received directly from the transmitting station (direct waves) and signals being reflected from nearby buildings or mountains (reflected waves).)
Station selection cannot be made by using the preset-tuning buttons.	The preset-tuning buttons of this unit have not been preset.	Make the presettings.
	The charge of the capacitor which maintains the "back-up", memory is exhausted.	Set the power switch to the "on" position for 60 minutes or more to perform the charging, and then make the memory presetting again.

While listening to AM broadcasts
An unusual "beat" sound is heard.	Unit is being used at the same time as the television set.	Turn off television set, or use this unit farther away from it.
A low-pitched "hum" sound is heard when the broadcast is tuned.	The AM loop antenna connection wires are too close to the power cord.	Place the antenna connection wires and the power cord farther apart.
	The power supply frequency from the power cord is modulated and heard from the speakers.	Try reversing the connection of the power cord plug.Install a special outdoor antenna.
A strange hissing noise is produced continuously or intermittently.	Caused by the "discharge phenomenon" and the "oscillation phenomenon" of electric appliances (such as fluorescent lights, TV, small series-type motors, rectification equipment, etc.).	Try placing this unit farther away from such equipment.Install noise-prevention equipment on this unit or on the electric appliance.
Station selection cannot be made by using the preset-tuning buttons.	The preset-tuning buttons of this unit have not been preset.	Make the presettings.
	The charge of the capacitor which maintains the "back-up" memory is exhausted.	Set the power switch to the "on" position for 60 minutes or more to perform the charging, and then make the memory presetting again.