FM Stereo / FM-AM Tuner ST-JX520

Sony Corporation; Tokyo

  • Year
  • 1985 ?
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • ID
  • 257043

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • PLL, Phase-locked loop; ZF/IF 450/10700 kHz
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Radio Control (+Remote Wire etc)
  • Power type and voltage
  • Alternating Current supply (AC) / 120; 220; 240 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from
  • Model: FM Stereo / FM-AM Tuner ST-JX520 - Sony Corporation; Tokyo
  • Shape
  • Book-shelf unit.
  • Dimensions (WHD)
  • 430 x 80 x 270 mm / 16.9 x 3.1 x 10.6 inch
  • Notes
  • A hi-fi AM/FM stereo Quartz Lock Digital Synthesizer tuner with a LCD digital Band/Frequency display, housed in a black metal case, with infrared remote control. With press buttons for Tuning down and Tuning up, Band (FM, AM), Memory, Stereo Muting, Stereo indicator and 12 keys for 6 FM and 6 AM preset radio stations. The US model also has a press button for Antenna selection. On the back, terminals for AM and FM antennae, RCA phono line output sockets, AC mains outlet (500W max) and connectors for Function Control (for connection to the SYNC connector on other components) and Control S In/Out (for system remote control). Supplied with remote control (RM-S520), remote control cord, function control cord, ribbon antenna, connecting cord, layout-free antenna, adaptors and station labels.

    FM tuner section  
    Tuning range 87.5MHz - 108MHz
    Antenna terminals 75Ω unbalanced, 300Ω balanced (not US model)
    Sensitivity at 50dB quieting 16.1dBf, 1.8µV (mono), 37.9dBf, 21µV (stereo)
    Usable sensitivity 10.3dBf, 0.9µV (IHF)
    Signal/Noise ratio
    (at 75kHz deviation)
    82dB (mono), 76dB (stereo)
    Harmonic distortion at 1kHz 0.1% (mono), 0.25% (stereo)
    IM distortion 0.1% (mono), 0.25% (stereo)
    Separation at 1kHz 50dB
    Frequency response 30Hz - 15kHz +0.2dB,-1.8dB
    Selectivity at 400kHz 75dB
    Capture ratio 1.0dB
    AM suppression ratio 55dB
    Image response ratio 45dB
    IF response ratio 90dB
    Spurious response ratio 75dB
    Output level/impedance
    at 75kHz deviation
    750mV, 4.7kΩ
    AM tuner section  
    Tuning range 531 - 1,602kHz (9kHz step)
    530 - 1,610kHz (10kHz step)
    Antenna Layout-free AM antenna
    External antenna terminal
    Usable sensitivity  
      Layout-tree AM antenna 300µV/m (at 999 or 1,000kHz)
      External antenna 30µV (at 999 or 1,000kHz)
    Signal/Noise ratio 50dB (50mV/m)
    Harmonic distortion 0.3% (at 50mV/m, 400Hz)
    Selectivity 35dB (9kHz), 38dB (10kHz)

    Versions/Power requirements           
    US Model  /  120V AC 60Hz
    E Model    /  120, 220, 240V AC 50/60Hz with voltage selector

    Power consumption:    18 W (E model), 20 W (US model)

    The similar Sony ST-JX520L FM Stereo / FM-AM Tuner additionally has LW.

  • Net weight (2.2 lb = 1 kg)
  • 3.3 kg / 7 lb 4.3 oz (7.269 lb)
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Service Manual ST-JX520 dated 1985)
  • Literature/Schematics (2)
  • - - Manufacturers Literature (Operation Instructions ST-JX520)
  • Author
  • Model page created by Franz Scharner. See "Data change" for further contributors.

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