Aiwa AD-F 990 specifications

Brand : Aiwa

General

connectors

Tech nical data

special features

[1]

file:Aiwa AD-F990-Owners-Manual.pdf

File:Aiwa -AD-F990-Service-Manual.pdf

number of inputs:
- 1 × Rec-In, 2 × microphone Mono (L/R), 1 × remote control receiver
number of outputs:
- 1 × Line-Out, 1 × earphone

heads: 3
engines: 2
constant velocity fluctuations: ±0,025 % / 0,08 % (WRMS / DIN)
band types: type I, II, IV
frequency response:
- type I: 20-19.000 Hz
- type II: 20-20.000 Hz
- type III: 20-21.000 Hz
THD:
signal-to-noise ratio: 80 dB (Typ IV with Dolby C)
Auto-Reverse: no
title search: Yes
Dolby B and C
MPX-Filter : switchable
Fader: no
Pitch-control: no
CD Synchro recording: no

Amorphous recording/playback heads
Automatic band places switch
HX-Pro
calibration computer
real-time tape counter, remaining time display, Prior to rewinding more
0-Stop/repeat
Memory-rewind
automatic play forward and backward
ADMS System (automatic tape head demagnetization each time the device is switched on)
Cue/Review (no more Listening and fast - forward, rewind)
headphone volume between 2 values, switchable
timer-controlled recording and playback
Switchable level control automatic
Switchable Dolby-automatic
Monitor-automatic
Automatic belt tightening when Inserting the tape cassette

image: Aiwa AD-F 990 without cover (remark: The cable ties are made by me and this is a photo of your own device)

After 38 years, it was at the time: I have the Deck in 1983 for $ 1200.- bought and now nothing went. The drive belts were decomposed to an oily pampe and the idler for rewinding and rewinding B.Z.W. play was without function. The cherry on the cake was that the pinch lever (second pressure roller) was also without function (probably due to resinification). After many hours of work, the deck moves again and plays cassettes as it did almost 40 years ago.