• Paese
• Giappone

• Produttore / Marca
• Aiwa Co. Ltd.; Tokyo

• Anno
• 1999 ?

• Categoria
• Registratore audio/video e/o riproduttore 

• Radiomuseum.org ID
• 369477

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• Numero di transistor
• A semiconduttori.

• Semiconduttori

• Principio generale
• Amplificatore audio

• Gamme d'onda
• - senza

• Particolarità
• CD-Player, -Writer, MD, MOD (audio)

• Tensioni di funzionamento
• Batterie / presa di alimentazione supplementare

• Altoparlante
• - solo per cuffie o auricolari

• Potenza d'uscita
• 0.024 W (indistorta)

• Materiali
• Plastica (non bachelite o catalina)

• Radiomuseum.org
• Modello: Cross X Trainer, Compact Disc Player XP-SP920 - Aiwa Co. Ltd.; Tokyo

• Forma
• Tascabile (portatile molto piccola), < 20 cm

• Dimensioni (LxAxP)
• 134 x 30 x 140 mm / 5.3 x 1.2 x 5.5 inch

• Annotazioni

• Aiwa XP‑SP920

  The Aiwa XP‑SP920 is a late‑1990s portable compact disc player designed for playback of standard CD‑DA audio discs. It follows the established Aiwa XP‑series architecture, using a lightweight top‑loading chassis with a single‑beam optical pickup and 1‑bit digital‑to‑analogue conversion. The unit incorporates Aiwa’s electronic anti‑shock memory system, which buffers audio data to reduce skipping during portable use. Playback information is shown on a segment‑type LCD providing track number, elapsed time, and mode indicators.

  The mechanical assembly uses the DA23LH optical pickup mechanism, a common Aiwa transport of the period, mounted on a compact plastic sub‑chassis with spring isolation. Disc loading is manual via a hinged lid with magnetic spindle clamp. The servo and signal‑processing stages are integrated on a single PCB, combining focus/tracking control, spindle motor drive, and digital signal decoding. Audio output is provided through a 3.5 mm stereo headphone jack with electronic volume control; some regional variants include a fixed‑level line output.

  Power is supplied either by two AA dry‑cell batteries or an external DC adaptor (approx. 4.5 V). Certain versions support the use of a rechargeable Ni‑MH battery pack charged externally. The underside battery compartment is designed for quick replacement and includes polarity guides and a retaining latch. Typical operating time varies depending on disc type and anti‑shock usage.

  The XP‑SP920 retains the standard control layout of the XP‑series, with front‑panel transport keys and side‑mounted power and hold switches. Playback modes include repeat, random, and program sequence, selectable through the mode key. The electronic design emphasises low power consumption and stable tracking performance, consistent with Aiwa’s portable CD products of the era.

  Overall, the XP‑SP920 represents a typical example of Aiwa’s late‑1990s Discman‑type portables, sharing mechanical and electronic components with other models in the XP‑SP and XP‑V families. No radio tuner or MP3 capability is included; the unit is dedicated to CD‑DA playback.

• Peso netto
• 0.277 kg / 0 lb 9.8 oz (0.61 lb)

• Bibliografia
• - - Manufacturers Literature (S/M Code No. 09-013-443-3R1)

• Autore
• Modello inviato da Nikolai Galak. Utilizzare "Proponi modifica" per inviare ulteriori dati.

• Altri modelli

• In questo link sono elencati 975 modelli, di cui 926 con immagini e 182 con schemi.
  Elenco delle radio e altri apparecchi della Aiwa Co. Ltd.; Tokyo