Yorkville xs800h Service Manual 电路图.pdf
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1、Hz Power Protect 15+15-15+15-15+15-15+15- P a r a m e t r i c M i d in out D.I. line active mute out in W E T D R Y 0000 C u t B o o s t M A S T E R 1.5 k150 maxwetdryoff ScoopTrebleHi-MidLow-MidBass TUBE Drive Gain T U B E D r i v e L i m i t e r D . I . O u t p u t M u t e Solid-State Tube P r e a
2、 m p A c t i v e I n p u t P a s s i v e I n p u t E f f e c t s R e t u r n F r e q u e n c y C o m p r e s s o r loosetight B a s s R e s o n a n c e D r i v e M i x 400 Hz 0000 555555 101010101010 0 55 1010 -32-21 -14-11 -8-6 -4-2 0+2 +4 +6 - 6 d B 0 d B 400 0 46 1 37 9 28 5 10 M A X M I N M A X
3、M I N O F F M A X 800 U.S.A. Yorkville Sound Inc. 4625 Witmer Industrial Estate Niagara Falls, New York 14305 USA Voice: (716) 297-2920 Fax: (716) 297-3689 WORLD HEADQUARTERS WEB ACCESS: CANADA Yorkville Sound 550 Granite Court Pickering, Ontario L1W-3Y8 CANADA Voice: (905) 837-8481 Fax: (905) 837-8
4、746 Quality and Innovation Since 1963 Printed in Canada SERVICE MANUAL xs800h TYPE: YS1035 RadioFans.CN 收音机爱 好者资料库 Manual-Service-xs800h-00-2v0.pdf IMPORTANT SAFETY INSTRUCTIONS safety-4v3.eps Oct. 26/05 CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABL
5、E PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. INSTRUCTIONS PERTAINING TO A RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS Read Instructions The Owners Manualshould be read and understood before operation of your unit. Please, save these instruc- tions for future reference. Pack
6、aging Keep the box and packaging materials, in case the unit needs to be returned for service. Warning When using electric products, basic precautions should always be followed, including the following: Power Sources Your unit should be connected to a power source only of the voltage specified in th
7、e owners manual or as marked on the unit. This unit has a polarized plug. Do not use with an extension cord or receptacle unless the plug can be fully inserted. Precautions should be taken so that the grounding scheme on the unit is not defeated. Hazards Do not place this product on an unstable cart
8、, stand, tripod, bracket or table. The product may fall, causing serious personal injury and serious damage to the product. Use only with cart, stand, tripod, bracket, or table recommended by the manufacturer or sold with the product. Follow the manufacturers instructions when installing the product
9、 and use mounting accessories recommended by the manufacturer. The apparatus should not be exposed to dripping or splashing water; no objects filled with liquids should be placed on the apparatus. Terminals marked with the “lightning bolt” are hazardous live; the external wiring connected to these t
10、erminals require installation by an instructed person or the use of ready made leads or cords. Ensure that proper ventilation is provided around the appliance. No naked flame sources, such as lighted candles, should be placed on the apparatus. Power Cord The AC supply cord should be routed so that i
11、t is unlikely that it will be damaged. If the AC supply cord is damaged DO NOT OPERATE THE UNIT. Service The unit should be serviced only by qualified service personnel. AVIS: AFIN DE REDUIRE LES RISQUE DE CHOC ELECTRIQUE, NENLEVEZ PAS LE COUVERT (OU LE PANNEAU ARRIERE) NE CONTIENT AUCUNE PIECE REPA
12、RABLE PAR LUTILISATEUR. CONSULTEZ UN TECHNICIEN QUALIFIE POUR LENTRETIENT INSTRUCTIONS RELATIVES AU RISQUE DE FEU, CHOC LECTRIQUE, OU BLESSURES AUX PERSONNES Veuillez Lire le Manuel Il contient des informations qui devraient tres comprises avant lopration de votre appareil. Conservez S.V.P. ces inst
13、ructions pour consultations ultrieures. Emballage Conservez la boite au cas ou lappareil devait tre retourner pour rparation. Attention: Lors de lutilisation de produits lectrique, assurez- vous dadhrer des prcautions de bases incluant celle qui suivent: Alimentation Lappareil ne doit tre branch qu
14、une source dalimentation correspondant au voltage spcifi dans le manuel ou tel quindiqu sur lappareil. Cet appareil est quip dune prise dalimentation polarise. Ne pas utiliser cet appareil avec un cordon de raccordement moins quil soit possible dinsrer compltement les trois lames. Des prcautions doi
15、vent tres prises afin deviter que le systme de mise la terre de lappareil ne soit dsengag. Risque Ne pas placer cet appareil sur un chariot, un support, un trpied ou une table instables. Lappareil pourrait tomber et blesser quelquun ou subir des dommages importants. Utiliser seulement un chariot, un
16、 support, un trpied ou une table recommands par le fabricant ou vendus avec le produit. Suivre les instructions du fabricant pour installer lappareil et utiliser les accessoires recommands par le fabricant. Il convient de ne pas placer sur lappareil de sources de flammes nues, telles que des bougies
17、 allumes. Lappeil ne doit pas tre expos des gouttements deau ou des claboussures et quaucun objet rempli de liquide tel que des vases ne doit tre plac sur lappareil. Assurez que lappareil est fourni de la propre ventilation. Les dispositifs marqus dune symbole “dclair” sont des parties dangereuses a
18、u toucher et que les cblages extrieurs connects ces dispositifs de connection extrieure doivent tre effectivs par un oprateur form ou en utilisant des cordons dj prpars. Cordon dAlimentation vitez dendommager le cordon dalimentation. NUTILISEZ PAS LAPPAREIL si le cordon dalimentation est endommag. S
19、ervice Consultez un technicien qualifi pour lentretien de votre appareil. RadioFans.CN 收音机爱 好者资料库 1 SERVICE BULLETIN Preamp Tube Replacement Products Affected: xs400, xs400t, xs400h, xs800h, the DynaBass Series (the 400, 400t, 400h and 800h). In order to maintain consistent audio sound quality and p
20、erformance replace preamplifier tubes in the xs400, xs400t, xs400h, xs800h, the DynaBass Series (400, 400t, 400h and 800h) with Yorkville specified and sorted 12AX7 tubes (Yorkville Sound part number “12AX7SORTED”). The specified tubes are chosen for their combined attributes of low noise, high gain
21、 and no microphonic feedback. The following chart demonstrates a sampling of 1000 tubes tested and the percentage deemed acceptable. Distribution of 12AX7 Gain Measurement N = 1000 Tubes used in the DynaBass 400, 800H, XS400 and XS800H are extracted from the upper quartile of the tube population www
22、. yorkvi l l e. com REAL Gear. REAL People. Yorkville Sound 550 Granite Court Pickering, Ontario L1W-3Y8 CANADA Canada Voice: (905) 837-8481 Fax: (905) 837-8746 Yorkville Sound Inc. 4625 Witmer Industrial Estate Niagara Falls, New York 14305 USA U.S.A. Voice: (716) 297-2920 Fax: (716) 297-3689 Radio
23、Fans.CN 收音机爱 好者资料库 SERVICE-BULLETIN-PC7137-preamp-tubes-00-1v0-eng.pdf 2 SERVICE BULLETIN Remplacement de Lampe Pour Pramplificateur Produits Affects: xs400, xs400t, xs400h, xs800h, Le Series DynaBass (the 400, 400t, 400h and 800h). Pour prserver une qualit et une performance audio constante remplac
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