Difference between revisions of "Technics RS-BX 727"

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Daten
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=== General ===
 +
* Manufacturer: [[Technics]]
 +
* Model: RS-BX727
 +
* Type: three-head stereo cassette deck with rear band control
 +
* Year of manufacture: 1992
 +
* Made in: Osaka, Japan
 +
* Color: Black
 +
* Remote control: Yes
 +
* Remote control: Yes
 +
* Power consumption: 20 W
 +
* Dimensions: Width 430 mm, Height 135 mm, Depth 300 mm.
 +
* Weight: 5,00 kg
 +
* New price approx.: 649, - DM
  
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Allgemein
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=== Connections ===
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Hersteller: Technics
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==== Inputs: ====
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Modell: RS-BX727
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* CD Direct In: No
−
Typ: Dreikopf Stereocassettendeck mit Hinterbandkontrolle
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* Line In: 2xCinch, 60 mV/47 kOhm
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Baujahre:
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==== Outputs: ====
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Hergestellt in: Osaka, Japan
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* Headphone: 6,3mm jack, gold plated, 125 mV/8 Ohm (8 Ohm ~ 600 Ohm)
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Farbe: schwarz
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* Line Out: 2xCinch, 400 mV/800 Ohm
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Fernbedienung: Ja
 
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Fernbedienbar: Ja
 
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Leistungsaufnahme: 20 W
 
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Abmessungen: Breite 430 mm, Höhe 135 mm, Tiefe 300 mm
 
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Gewicht: 5,00 kg
 
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Neupreis ca.: 649,- DM
 
  
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Anschlüsse
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=== Technical data ===
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Eingänge:
+
* Audio heads: 1 recording head made of permalloy, 1 playback head made of permalloy, 1 ferrite double gap erasing head
−
CD Direct In: Nein
+
* Recording system: alternating current premagnetization
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Line In: 2xCinch, 60 mV/47 kOhm
+
* Premagnetization frequency: 80 kHz
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Ausgänge:
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* Erasing system: alternating current
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Kopfhörer: 6,3mm Klinke, Vergoldet, 125 mV/8 Ohm (8 Ohm ~ 600 Ohm)
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* Motors: 1 quartz direct-drive motor for the sound shaft, 1 DC motor for the winding drive, 1 DC motor for opening and closing the cassette compartment.
−
Line Out: 2xCinch, 400 mV/800 Ohm
+
* Synchronisation fluctuations: 0.05% (WRMS) ; +/- 0.14% (DIN)
 +
* Tape types: FE, CrO2, pure iron tape
 +
* Frequency response:
 +
:FE band: 30 Hz ~ 17 kHz, +/- 3dB ; 20 Hz ~ 18 kHz (DIN).
 +
:CrO2: 30 Hz ~ 18 kHz, +/- 3dB ; 20 Hz ~ 19 kHz (DIN)
 +
:Metal: 30 Hz ~ 19 kHz, +/- 3dB ; 20 Hz ~ 20 kHz (DIN)
 +
* Distortion factor: n.a.
 +
* Signal-to-noise ratio: (signal level = full scale; CrO2 band)
 +
:with Dolby C noise reduction: 74 dB (CCIR)
 +
:with Dolby B noise reduction: 66 dB (CCIR)
 +
:without noise reduction: 57 dB (A-weighted)
 +
* Auto Reverse: no
 +
* Title search: yes
 +
* Dolby HX PRO: Dolby B, Dolby C
 +
* MPX Filter: yes
 +
* Fader: No
 +
* Pitch control: No
 +
* CD Direct Recording: No
  
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Technische Daten
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=== Special features ===
−
Tonköpfe: 1 Aufnahmekopf aus Permalloy, 1 Wiedergabekopf aus Permalloy, 1 Ferrit-Doppelspalt-Löschkopf
 
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Aufnahmesystem: Wechselstrom- Vormagnetisierung
 
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Vormagnetisierungsfrequenz: 80 kHz
 
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Löschsystem: Wechselstrom
 
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Motoren: 1 Quarz-Direktgetriebener Motor für die Tonwelle, 1 Gleichstrommotor für den Wickelantrieb, 1 Gleichstrommotor für das Öffnen und Schließen des Cassettenfachs.
 
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Gleichlaufschwankungen: 0,05% (WRMS) ; +/- 0,14% (DIN)
 
−
Bandarten: FE, CrO2, Reineisenband
 
−
Frequenzgang:
 
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FE-Band: 30 Hz ~ 17 kHz, +/- 3dB ; 20 Hz ~ 18 kHz (DIN)
 
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CrO2: 30 Hz ~ 18 kHz, +/- 3dB ; 20 Hz ~ 19 kHz (DIN)
 
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Metal: 30 Hz ~ 19 kHz, +/- 3dB ; 20 Hz ~ 20 kHz (DIN)
 
−
Klirrfaktor: n.a.
 
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Signalrauschabstand: (Signalpegel = Vollaussteuerung; CrO2-Band)
 
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mit Dolby C Rauschunterdrückung: 74 dB (CCIR)
 
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mit Dolby B Rauschunterdrückung: 66 dB (CCIR)
 
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ohne Rauschunterdrückung: 57 dB (nach A bewertet)
 
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Auto-Reverse: nein
 
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Titelsuchlauf: ja
 
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Dolby HX PRO: Dolby B, Dolby C
 
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MPX-Filter: ja
 
−
Fader: Nein
 
−
Pitch-Kontrolle: Nein
 
−
CD-Direkt-Aufnahme: Nein
 
  
−
Besondere Ausstattungen
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* TNRC (Technics Non-Resonant Compound) -> special base plate to absorb vibrations
−
Manuelle Bias Einstellung und zusätzliche Aufnahmepegeleichung für Links und Rechts mittels integriertem Testongenerator (10 kHz Bias / 400 Hz Leveleichung)
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* Quartz controlled digital servo direct drive motor
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Memory Stop, Repeatfunktion A<->B bis zu 16x
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* Three-head assembly with audio head coils made of high-purity PC-OCC copper.
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Echtzeitzählwerk, umschaltbar auf normales Bandzählwerk
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* Linear Magne Field Class AA system
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Aufnahmepegelfunktion (APRS), dient nur zum besseren Aussteuern
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* Two separate Dolby circuits
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TNRC (Technics Non-Resonant Compound) -> Spezielle Bodenplatte zum absorbieren von Erschütterungen
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* Dolby HX Pro
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[Bearbeiten] Bemerkungen
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* APRS ("Advanced Precise Rec-Level System")
 +
* TPS - Title Search
 +
* Logic control with two motors
 +
* Memory Stop, Repeat Function<->AB up to 16x
 +
* Motorized cassette compartment
 +
* Linear FL tape counter/play time display
 +
* FL peak level display for two ranges
 +
* Rec. level function (APRS), used for better leveling only
 +
* Rec. calibration generator (400Hz/10kHz)
 +
* Bias and recording level calibration
 +
* Remote control via Technics amplifier (SU-VX720/VX620)
  
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Der Laufwerkantrieb ist ohne Riemen. An der Capstanschwungmasse ist ein Dauermagnet angebracht, welcher durch ein elektromagnetisches Feld angetrieben wird.
+
=== Remarks ===
 +
* The drive is without belt. There is a permanent magnet attached to the capstan flywheel, which is driven by an electromagnetic field.
 +
* RS-BX727 -&gt; this unit has an IR receiver. The RS-BX727 was released in October 1992 and replaced the RS-BX707.
 +
 
 +
'''Occurring errors:'''
 +
* No sound, no recording:C619, C620, C621, C622 &amp; C624 -&gt; replace 1000uF-10V
 +
* Permanent magnet on capstan can come loose, especially after transport. Leads to fast grinding noises! All DD Drive AR350
 +
* Gear wheel of the winding disk drive can break/ crack! Item no. 130/ ET. No. RDG0034 -&gt; no longer available
 +
* Trembling in the sound: Lubricant of the winding plate axles flocculates! Re-lubricate with graphite grease<br />
 +
* Clay leaks: Spring of pressure roller gives way. Item no. 120-1/ ET. No. RUW140ZC -&gt; no longer available
 +
'''For your consideration'''
 +
* Due to age, the plastic elements in the drive become increasingly brittle and break, the pinions of the rewind motor burst open and slip off =&gt; irreparable.
 +
 
 +
 
 +
 
 +
Other models of the same series:
 +
* [[Technics_RS-BX_626|RS-B626]]
 +
* [[Technics_RS-BX_727|RS-B727]]
 +
* [[Technics_RS-BX_828|RS-B828]]
 +
 
 +
=== Pictures ===
 +
 
 +
[[File:Rsbx727a.jpg]]
 +
 
 +
=== Links ===
 +
[[https://youtu.be/Q2d5Gjrbrao video rewiev]]
 +
[[Category:Cassette decks]]</->

Latest revision as of 14:09, 3 November 2020

General[edit]

  • Manufacturer: Technics
  • Model: RS-BX727
  • Type: three-head stereo cassette deck with rear band control
  • Year of manufacture: 1992
  • Made in: Osaka, Japan
  • Color: Black
  • Remote control: Yes
  • Remote control: Yes
  • Power consumption: 20 W
  • Dimensions: Width 430 mm, Height 135 mm, Depth 300 mm.
  • Weight: 5,00 kg
  • New price approx.: 649, - DM

Connections[edit]

Inputs:[edit]

  • CD Direct In: No
  • Line In: 2xCinch, 60 mV/47 kOhm

Outputs:[edit]

  • Headphone: 6,3mm jack, gold plated, 125 mV/8 Ohm (8 Ohm ~ 600 Ohm)
  • Line Out: 2xCinch, 400 mV/800 Ohm

Technical data[edit]

  • Audio heads: 1 recording head made of permalloy, 1 playback head made of permalloy, 1 ferrite double gap erasing head
  • Recording system: alternating current premagnetization
  • Premagnetization frequency: 80 kHz
  • Erasing system: alternating current
  • Motors: 1 quartz direct-drive motor for the sound shaft, 1 DC motor for the winding drive, 1 DC motor for opening and closing the cassette compartment.
  • Synchronisation fluctuations: 0.05% (WRMS) ; +/- 0.14% (DIN)
  • Tape types: FE, CrO2, pure iron tape
  • Frequency response:
FE band: 30 Hz ~ 17 kHz, +/- 3dB ; 20 Hz ~ 18 kHz (DIN).
CrO2: 30 Hz ~ 18 kHz, +/- 3dB ; 20 Hz ~ 19 kHz (DIN)
Metal: 30 Hz ~ 19 kHz, +/- 3dB ; 20 Hz ~ 20 kHz (DIN)
  • Distortion factor: n.a.
  • Signal-to-noise ratio: (signal level = full scale; CrO2 band)
with Dolby C noise reduction: 74 dB (CCIR)
with Dolby B noise reduction: 66 dB (CCIR)
without noise reduction: 57 dB (A-weighted)
  • Auto Reverse: no
  • Title search: yes
  • Dolby HX PRO: Dolby B, Dolby C
  • MPX Filter: yes
  • Fader: No
  • Pitch control: No
  • CD Direct Recording: No

Special features[edit]

  • TNRC (Technics Non-Resonant Compound) -> special base plate to absorb vibrations
  • Quartz controlled digital servo direct drive motor
  • Three-head assembly with audio head coils made of high-purity PC-OCC copper.
  • Linear Magne Field Class AA system
  • Two separate Dolby circuits
  • Dolby HX Pro
  • APRS ("Advanced Precise Rec-Level System")
  • TPS - Title Search
  • Logic control with two motors
  • Memory Stop, Repeat Function<->AB up to 16x
  • Motorized cassette compartment
  • Linear FL tape counter/play time display
  • FL peak level display for two ranges
  • Rec. level function (APRS), used for better leveling only
  • Rec. calibration generator (400Hz/10kHz)
  • Bias and recording level calibration
  • Remote control via Technics amplifier (SU-VX720/VX620)

Remarks[edit]

  • The drive is without belt. There is a permanent magnet attached to the capstan flywheel, which is driven by an electromagnetic field.
  • RS-BX727 -> this unit has an IR receiver. The RS-BX727 was released in October 1992 and replaced the RS-BX707.

Occurring errors:

  • No sound, no recording:C619, C620, C621, C622 & C624 -> replace 1000uF-10V
  • Permanent magnet on capstan can come loose, especially after transport. Leads to fast grinding noises! All DD Drive AR350
  • Gear wheel of the winding disk drive can break/ crack! Item no. 130/ ET. No. RDG0034 -> no longer available
  • Trembling in the sound: Lubricant of the winding plate axles flocculates! Re-lubricate with graphite grease
  • Clay leaks: Spring of pressure roller gives way. Item no. 120-1/ ET. No. RUW140ZC -> no longer available

For your consideration

  • Due to age, the plastic elements in the drive become increasingly brittle and break, the pinions of the rewind motor burst open and slip off => irreparable.


Other models of the same series:

Pictures[edit]

Rsbx727a.jpg

Links[edit]

[video rewiev]</->

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