Editing Onkyo TX-SV 727 R

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__NOTOC__
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Manufacturer: Onkyo
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== Data ==
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Model: TX-SV 727R
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{{navigation}}
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Power Output: Stereo Mode(Font Main L/R channels), 100 watts per channel min. RMS at 8 ohms, both channels driven, from 20 Hz to 20.000 hz, with no more than 0.08% total harmonic distortion
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'''General'''
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Power Consumption: 430w max
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* Manufacturer: [[Onkyo]]
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Mass: 13 kg.
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* Model: TX-SV 727 R
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Dimensions(W x H x D): 544 x 170 x 389 mm
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* Type: A/V receiver
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Surround Modes: Dolby Pro Logic, Theater, Hall, Arena, Live, By-Pass
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* Years of manufacture: 1995 - 1996
 
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* Made in: Malaysia
 
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* Color: Black
 
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* Remote control: yes
 
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* Power consumption: 430 W max.
 
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* Dimensions (WxHxD): 455 x 170 x 388 mm
 
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* Weight: 13.9 kg
 
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* Original price approx.: 1'600 DM, 1995
 
  
  
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'''Technical data'''
 
  
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* Data at "Hifi-Engine": [https://www.hifiengine.com/manual_library/onkyo/tx-sv727.shtml]
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Onkyo Receiver aus den mittleren 90er Jahren mit kräftiger Endstufe solider Verarbeitung und tollem RDS Empfangsteil.
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Die in der Anleitung angegebenen 2 x 120 Watt an 8 Ohm ( 1KHZ DIN ) werden von den aussen am Kühlkörper sitzenden dicken Transistoren produziert.
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Die 4 kleineren Toshiba Transistoren der Mitte des mächtigen Gussalukühlkörpers sind für Surround Rear und Center Speaker.
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Bei Umschaltung auf Multiroom werden sie umgeschaltet in einen Stereo Verstärker der unabhängig von den anderen Stereolautsprechern eine eigens einstellbare Quelle wiedergeben kann. 2 x 80 Watt Sinus stehen zur Verfügung. Die Lautstärke ist digital und nur über die Fernbedienung( RC-288 M )
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zu regeln.
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Onkyo untypisch ist bei diesem Gerät eine Loudness Funktion.
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Im alter neigen die Relais zu Kontaktschwierigkeiten was sich durch Verzerrungen und Tonausfall bemerkbar macht.
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Die 4 original VB 24 MBU Relais lassen sich nicht öffnen, so das diese ersetzt werden müssen. Das Relais Finder 40.52 24 VDC ist geeinget.
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Die Kontaktbeinchen für Ruhekontakte müssen abgekniffen werden, ebenso wie das verkleinern der Anschlüsse für die Steuerspule.
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Die Gehäusebodenplatte muss mittels durchtrennen der dünnen Haltestege entfernt werden, dann kommt man gut an die Lötstellen.
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Hinterher mit M3 Gewindeschrauben wieder befestigen.
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Übrigends die Lautsprecherklemmen sind bananensteckertauglich, es muss nur die schwarze Kappe entfernt werden.
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Lernfähige Fernbedienung RC 288 M.
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Entwickelt in Japan, gebaut in Malaysia.
  
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Siehe auch Bilder :
  
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'''Special Features'''
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http://s14.directupload.net/images/140104/ikdgtxoe.jpg
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* Surround Modes: Dolby Pro Logic, Theater, Hall, Arena, Live, By-Pass
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http://s14.directupload.net/images/140104/e42wms3r.jpg
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http://s14.directupload.net/images/140104/8oiyfhi2.jpg
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http://s1.directupload.net/images/140104/e26trvl9.jpg
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http://s1.directupload.net/images/140104/qjm647f5.jpg
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http://s1.directupload.net/images/140104/3mdviapp.jpg
  
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Mit neuen Finder Relais :
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== Remarks ==
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http://s14.directupload.net/images/140119/us47hw5z.jpg
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* Other models in the same series:
 
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* [[Onkyo TX-910]]
 
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* [[Onkyo TX-8410 R]]
 
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* [[Onkyo TX-8510 R]]
 
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* [[Onkyo TX-SV 414 PRO]]
 
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* [[Onkyo TX-SV 424 R]]
 
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* [[Onkyo TX-SV 515 PRO]]
 
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* [[Onkyo TX-SV 525 R]]
 
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* [[Onkyo TX-SV 727 R]]
 
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* [[Onkyo TX-SV 919 THX]]
 
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* [[Onkyo TX-V 940 RDS]]
 
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== Pictures ==
 
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* Extract from brochure: Onkyo TX-SV 727 R
 
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[[File:Onkyo TX-SV-727 R-Prospekt-1995.jpg]]
 
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== Reports ==
 
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* Onkyo receiver from the mid 90's with powerful power amp solid build quality and great RDS receiving section.
 
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* The 2 x 120 watts into 8 ohms ( 1KHZ DIN ) stated in the manual are produced by the thick transistors sitting on the outside of the heat sink.
 
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The 4 smaller Toshiba transistors in the middle of the mighty cast aluminium heat sink are for the surround rear and centre speakers.
 
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* When switched to multiroom, they are switched to a stereo amplifier that can play a dedicated source independently of the other stereo speakers. 2 x 80 Watt sine wave are available. The volume is digital and can only be controlled via the remote control (RC-288 M).
 
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Onkyo untypically is with this equipment a Loudness function.
 
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In the age the relays tend to contact difficulties which is noticeable by distortions and sound loss.
 
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The 4 original VB 24 MBU relays cannot be opened, so that these must be replaced. The relay Finder 40.52 24 VDC is suitable.
 
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* The contact legs for normally closed contacts must be cut off, as well as reducing the size of the connections for the control coil.
 
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The housing base plate must be removed by cutting through the thin retaining webs, then you can easily reach the soldering points. Afterwards fix it again with M3 screws.
 
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By the way, the speaker terminals are suitable for banana plugs, only the black cap has to be removed.
 
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Learning remote control RC 288 M.
 
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== Links ==
 
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[[Category:A/V Receivers]]
 

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