Difference between revisions of "JVC QL-A5"

 
(35 intermediate revisions by 2 users not shown)
Line 1: Line 1:
 
__NOTOC__
 
__NOTOC__
== Daten ==
+
== Data ==
{{Navigation}}
+
'''''JVC semi-automatic record player QL-A5'''''
'''''JVC Plattenspieler QL-A5'''''
+
{{navigation}}
*Hersteller: [[JVC]] (Japan)
 
*Stromversorgung: 220 V, 50Hz, 9,5 Watt (Europa)
 
*Größe: BxHxT. 43,8 x 13,1 x 38,0 cm
 
*Gewicht: 6,5 Kg
 
'''Technische Daten:'''
 
*Motor: Quarzverriegelter Kernloser Gleichstrom-Servomotor mit Frequenzgenerator
 
*Antriebssystem: Direktantrieb,
 
*Typ: Halbautomat (Tonarm geht automatisch zurück)
 
*Geschwindigkeiten: 33,3 und 45 Umdr./min
 
*Regelungsbereich: +- 6%
 
*Gleichlaufschwankungen: 0,025 % (WRMS)
 
*Störspannungsabstand: >75 dB (DIN B)
 
*Anlaufdrehmoment: 650g-cm
 
*Geschwindigkeitsabweichung: Innerhalb 0,002%
 
*Drift pro Stunde: 0,0001%/h
 
*Plattenteller: 30,8 cm
 
*Ausgang: Cinch-Kabel (Stereo) und Masse
 
*Zubehör: Single-Puck und Nadelschutzkappe
 
*'''Tonarm:'''
 
*Typ: TH-Tonarm (S-förmiger Rohrtonarm)
 
*Wirksame Länge: 220 mm
 
*Überhang: 15 mm
 
*zulässiges Tonabnehmergewischt: 12,5 - 18,5 g (einschließlich Systemträger)
 
*Tonabnehmer: Z-1S (MM) 10 - 25000 Hz (Bild 1)
 
*Tonabnehmer: Z-4S (MM) (Bild 2)
 
*Optimaler Auflagedruck: 1,75 g +- 0,25 g
 
  
== Bilder ==
 
[[Datei:JVC_QL_A5.jpg|Beschreibung]]
 
[[Datei:JVC_QL_A5e.jpg|Beschreibung]]
 
  
== Bemerkungen ==
+
'''General:'''
 +
* Manufacturer: [[JVC]] (Japan)
 +
* Type: Semi-automatic (tonearm retracts automatically, unit then switches off)
 +
* Power supply: 220 V, 50 Hz, 9,5 Watt (Europe)
 +
* Size: 43,8 x 13,1 x 38,0 cm (WxHxD)
 +
* Weight: 6,5 Kg
 +
* Year of manufacture: 1979 - 1981
 +
* Color: silver
 +
* New price: about 500, - DM ( who knows it better, please change )
  
== Berichte ==
+
 
 +
'''Technical data:'''
 +
* Motor: Quartz-locked core-less direct current servo motor with frequency generator
 +
* Drive system: Direct drive,
 +
* Speeds: 33.3 and 45 rpm
 +
* Control range: ± 6
 +
* Synchronisation fluctuations: 0.025 % (WRMS)
 +
* Interference voltage distance: >75 dB (DIN B)
 +
* Starting torque: 650 g-cm
 +
* Speed deviation: within 0.002 % * Drift per hour: 0.005 % (WRMS)
 +
* Drift per hour: 0.0001 %/ h
 +
* Turntable: 30,8 cm
 +
* Output: fixed RCA cable with ground
 +
* Cartridge:
 +
** Z-4S: 3 mV (1 khz, 50 mm/ s)
 +
** Z-1S: 4 mV ...
 +
* Accessories: single puck and needle protection cap
 +
 
 +
 
 +
'''Tonearm:'''
 +
Type: TH tonearm (S-shaped tubular tonearm)
 +
Effective length: 220 mm
 +
** Overhang: 15 mm
 +
* Permissible pickup weight: 12.5 - 18.5 g (including system carrier)
 +
* pickup: Z-1S (MM) 10 - 25.000 Hz, powerful bass (picture 1)
 +
* Pickup: Z-4S (MM) 10 - 25,000 Hz (picture 3)
 +
* Optimal contact pressure: 1.5- 2.0 g
 +
 
 +
 
 +
== Remarks ==
 +
* even after 35 years it still runs perfectly,
 +
** Only a small foam rubber part, which was totally rotten, had to be replaced by a felt strip.
 +
**Hinge housings tend to burst due to age related material fatigue. Repair instructions as well as new hinges are available online at widely varying prices.
 +
* A panel weight is recommended, be sure to note the height,
 +
** so that the weight does not drag on the closed lid, ( Ebay from 25, - Euro )
 +
 
 +
 
 +
 
 +
== Pictures ==
 +
 
 +
[[File:JVC_QL_A5.jpg|Beschreibung]]
 +
 
 +
[[File:JVC_QL_A5_x.jpg|Beschreibung]]
 +
 
 +
[[File:JVC_QL_A5e.jpg|Beschreibung]]
 +
 
 +
== Reports ==
  
 
== Links ==
 
== Links ==
  
[[Kategorie:Plattenspieler]]
+
[[Category:Turntables]]

Latest revision as of 04:48, 6 May 2021

Data[edit]

JVC semi-automatic record player QL-A5


General:

  • Manufacturer: JVC (Japan)
  • Type: Semi-automatic (tonearm retracts automatically, unit then switches off)
  • Power supply: 220 V, 50 Hz, 9,5 Watt (Europe)
  • Size: 43,8 x 13,1 x 38,0 cm (WxHxD)
  • Weight: 6,5 Kg
  • Year of manufacture: 1979 - 1981
  • Color: silver
  • New price: about 500, - DM ( who knows it better, please change )


Technical data:

  • Motor: Quartz-locked core-less direct current servo motor with frequency generator
  • Drive system: Direct drive,
  • Speeds: 33.3 and 45 rpm
  • Control range: ± 6
  • Synchronisation fluctuations: 0.025 % (WRMS)
  • Interference voltage distance: >75 dB (DIN B)
  • Starting torque: 650 g-cm
  • Speed deviation: within 0.002 % * Drift per hour: 0.005 % (WRMS)
  • Drift per hour: 0.0001 %/ h
  • Turntable: 30,8 cm
  • Output: fixed RCA cable with ground
  • Cartridge:
    • Z-4S: 3 mV (1 khz, 50 mm/ s)
    • Z-1S: 4 mV ...
  • Accessories: single puck and needle protection cap


Tonearm: Type: TH tonearm (S-shaped tubular tonearm) Effective length: 220 mm

    • Overhang: 15 mm
  • Permissible pickup weight: 12.5 - 18.5 g (including system carrier)
  • pickup: Z-1S (MM) 10 - 25.000 Hz, powerful bass (picture 1)
  • Pickup: Z-4S (MM) 10 - 25,000 Hz (picture 3)
  • Optimal contact pressure: 1.5- 2.0 g


Remarks[edit]

  • even after 35 years it still runs perfectly,
    • Only a small foam rubber part, which was totally rotten, had to be replaced by a felt strip.
    • Hinge housings tend to burst due to age related material fatigue. Repair instructions as well as new hinges are available online at widely varying prices.
  • A panel weight is recommended, be sure to note the height,
    • so that the weight does not drag on the closed lid, ( Ebay from 25, - Euro )


Pictures[edit]

Beschreibung

Beschreibung

Beschreibung

Reports[edit]

Links[edit]