Yamaha KX-390 Cassette Deck

The Yamama KX-390 is a high end cassette deck with some exceptionally helpful features. If your playing back some old dull sounding tapes, the “PlayTrim” function can be used to make them sound brighter again. If you are planning on recording your oen tapes, this yamaha has an “AutoTune” function that calibrates the recording mechanism perfectly to the tape that you are using. Besides that it also got Dolby B / C noise reduction, title skip, digital counter and HX Pro on board.

To get this KX-390 running perfectly again the service below has been carried out:

• Replacement of Capstan Belt
• Replacement of FFWD/RWD Belt
• Cleaning of Heads
• Cleaning of Capstan with chemical
• Demganetisation of playback head and capstan
• Speed calibration
• Playback level calibration
• Full function test

Below is a test recording made by the KX-390 with the AutoTune function used for optimal recording:

Specifications

Type: 2-head, single compact cassette deck

Track System: 4-track, 2-channel stereo

Tape Speed: 4.76 cm/s

Heads: 1 x record/playback, 1 x erase

Motor: DC servo

Tape Type: type I, CrO2, Metal

Noise Reduction: B, C

Headroom Extension: HX Pro

Frequency Response: 20Hz to 19kHz  (Metal tape)

Signal to Noise Ratio: 74dB  (dolby C)

Wow and Flutter: 0.07%

Total Harmonic Distortion: 0.8%

Input: 100mV (line)

Output: 0.57V (line)

Dimensions: 435 x 126 x 285mm

Weight: 4.4kg

Year: 1996