Manuel d'utilisation / d'entretien du produit TVA50 du fabricant Niles Audio
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TV A50 STEREO AMPLIFIER/ A UT OMA TED SWITCHER TV A50 B LENDING H IGH F IDELITY AND A RCHITECTURE ® INST ALLA TION & OPERA TION GUIDE DS00395ACA-TVA50.
T ABLE OF CONTENTS Introduction 3 Features and Benefits 4 TV A50 Parts Guide 5 Installation Considerations 11 Installation 13 T rouble- Shooting 23 Specifications 24 Contents 24 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER TV A50 STEREO AMPLIFIER/ AUTOMA TED SWITCHER IMPORT ANT SAFETY INSTRUCTIONS 1.
2 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER 11. Only use attachments/accessories specified by the manu- facture. 12 . Unplug this apparatus during lightning storm or when unused for long periods of time. 13. Refer all servicing to qualified ser vice personnel.
3 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER INTRODUCTION A common challenge in designing whole-house audio/video distribution systems is allowing a local source, such as audio from a bedroom TV , to play through the main system speakers in that room.
4 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER FEA TURES AND BENEFITS • Compact Size - Allows installation on cabinet shelves, side walls or back panels. • RCA Line In Jacks - T wo gold plated RCA jacks for line level audio input from local device.
5 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER TV A50 P ARTS GUIDE 1. AC IN – Removable three-prong IEC compatible power cord. 2. Current Sensing AC Outlet – TV A50 will activate and switch inputs when it senses a current draw from a connected device.
6 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER F igur e 1 F igur e 2 2 1 3 4 5 6 7 8 DS00395ACA-TVA50.qxp 6/1/04 9:51 AM Page 6.
7 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER Speaker (A) T o Speaker (A) Input Right Left Whole House Receiver TV - Local Room Right/Left TV V ariable Line Out TV - Power Cord T o Current Sensing Outlet TV A-50 T o Unswitched Outlet Speaker (A) Out F igur e 3 TV current sense with one speaker pair Right Left DS00395ACA-TVA50.
8 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER Speaker (A) Speaker (A) Out Right Left Whole House Receiver TV - Local Room Right/Left TV V ariable Line Out TV - Power Cord T o Current Sensing Outlet .
9 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER Speaker (A) Speaker (A) Out Right Left Whole House Receiver TV - Local Room Right/Left TV V ariable Line Out TV - Power Cord T o Current Sensing Outlet .
10 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER Figure 6: Bottom of the unit with measurements for wall mounting 5-7/16" 4-15/16" DS00395ACA-TVA50.
11 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER INST ALLA TION CONSIDERA TIONS Location The TV A50 should be installed near the device to be switched, ideally within 15 feet, to avoid signal loss and degradation over long runs of wire. Access to the speaker wires, from the whole- house system and to the local speakers, is also necessary .
12 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER Speakers The TV A50 will remain stable when driving a 4 ohm load. If only one pair of speakers is being driven, 4, 6 or 8 ohm speakers systems can be used. If switching two pairs, 8 ohm speakers must be used.
13 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER INST ALLA TION Preparing for Installation 1. Figure 3 shows a typical application for switching one pair of speakers to a local source using current sensing. Refer to the other system applications for switching multiple speak- er pairs, and use of the T rigger IN/OUT .
14 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER 3. Gradually turn the sensitivity adjustment screw located on the bottom of the TV A50 (Figure 6) until you hear the inter- nal relay of TV A50 switch. This is indicated by a clicking sound inside the unit.
15 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER Installation Caution : T urn the power OFF to all components in the system to prevent accidental shorting or electrical shock. Mounting the TV A50 When possible, the TV A50 should be installed near the device to be switched.
16 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER Connect Whole-House System 1. Locate the 4 pin speaker connector plug for SPEAKER A IN (and remove if plugged in). 2 . Strip 1/4" of insulation from the end of each wire for SPEAKER A IN, coming from the speaker level output of the whole-house system amplifier .
17 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER 3. Use a small flathead screwdriver or your thumbnail to raise the locking tabs, exposing the holes on the removable con- nector plug. 4. Insert each wire into the appropriate hole on the remov- able connector plug, and snap the locking tab down.
NOTE: Some TVs have separate fixed (non-adjustable) and variable line outs. Some need to be switched using the TV’ s on-screen menu. Refer to the TV manual for additional information. Source Switching The TV A50 has two switching modes. Current Sensing and AC or DC voltage trigger .
19 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER BEFORE PROCEEDING SET THE VOLUME CONTROL ON THE TV A50 TO THE MINIMUM POSITION (FULL Y COUNTERCLOCKWISE). 1. Play a source (CD, T uner) on the whole-house system. Set the volume to a normal listening level.
20 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER NOTE : The speaker level, when switched from the whole-house system to the TV will not always be the same. If the whole-house system was set to CD with the volume turned up and the TV gets turned on to it’ s normal listening level, the speaker level might drop when the system switches to TV .
21 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER Example 2: In-W all V olume Control With a Fixed Output Device In some applications, it may be desirable to control speaker level of both the whole-house sources and the TV , or perhaps a local CD or DVD player that might not have a variable output, with the in-wall volume control.
22 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER Integrating a Niles IR repeater system with a TV plugged into the current sensed outlet of a TV A50, and a 12VDC controlled lift mechanism, provides an inexpensive, yet elegant solution to system automation.
23 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER TROUBLESHOOTING TV A50 will not power up Is TV A50 plugged in to an unswitched outlet? Is the POWER/ACTIVE LED Red? 120V AC measured from outlet with voltmeter? T ry another unswitched outlet.
24 S TERE O A MPLIFIER / A UT OMA TED S WIT CHER SPECIFICA TIONS Power : 50 watts per channel RMS into 4/8 ohms. S/N Ratio: >94dB THD: .05% at rated power . Mounting: Horizontal or vertical mount- ing. Keyholes in back panel for vertical mount. Connectors: 12V T rigger IN/OUT : 3.
S TERE O A MPLIFIER / A UT OMA TED S WIT CHER 25 Notes DS00395ACA-TVA50.qxp 6/1/04 9:51 AM Page 25.
S TERE O A MPLIFIER / A UT OMA TED S WIT CHER 26 Notes DS00395ACA-TVA50.qxp 6/1/04 9:51 AM Page 26.
Ni les Audio Corpora tion www .nilesaudio.com 1 233 1 S.W . 1 30 Street Miami, Florida, 3 3 18 6 T el: (305) 238-4373 Fax: (305) 238-0 1 85 © 2004 Niles Audio Corporation. All rights reserved. Niles, the Niles logo, IntelliPad and Blending High Fidelity and Architecture are registered trademarks of Niles Audio Corporation.
Un point important après l'achat de l'appareil (ou même avant l'achat) est de lire le manuel d'utilisation. Nous devons le faire pour quelques raisons simples:
Si vous n'avez pas encore acheté Niles Audio TVA50 c'est un bon moment pour vous familiariser avec les données de base sur le produit. Consulter d'abord les pages initiales du manuel d'utilisation, que vous trouverez ci-dessus. Vous devriez y trouver les données techniques les plus importants du Niles Audio TVA50 - de cette manière, vous pouvez vérifier si l'équipement répond à vos besoins. Explorant les pages suivantes du manuel d'utilisation Niles Audio TVA50, vous apprendrez toutes les caractéristiques du produit et des informations sur son fonctionnement. Les informations sur le Niles Audio TVA50 va certainement vous aider à prendre une décision concernant l'achat.
Dans une situation où vous avez déjà le Niles Audio TVA50, mais vous avez pas encore lu le manuel d'utilisation, vous devez le faire pour les raisons décrites ci-dessus,. Vous saurez alors si vous avez correctement utilisé les fonctions disponibles, et si vous avez commis des erreurs qui peuvent réduire la durée de vie du Niles Audio TVA50.
Cependant, l'un des rôles les plus importants pour l'utilisateur joués par les manuels d'utilisateur est d'aider à résoudre les problèmes concernant le Niles Audio TVA50. Presque toujours, vous y trouverez Troubleshooting, soit les pannes et les défaillances les plus fréquentes de l'apparei Niles Audio TVA50 ainsi que les instructions sur la façon de les résoudre. Même si vous ne parvenez pas à résoudre le problème, le manuel d‘utilisation va vous montrer le chemin d'une nouvelle procédure – le contact avec le centre de service à la clientèle ou le service le plus proche.
