We are investigating what is going repairing and tuning the classic cassette player from Technics RS-M228X

Specs

Type: 2-head, single compact cassette deck
Track System: 4-track, 2-channel stereo
Tape Speed: 4.8 cm/s
Heads: 1 x record/playback, 1 x erase
Tape Type: type I, CrO2, Metal
Noise Reduction: B, DBX
Frequency Response: 20Hz to 18kHz (Metal tape)
Signal to Noise Ratio: 92dB (DBX)
Wow and Flutter: 0.048%
Dimensions: 430 x 109 x 280mm
Weight: 5kg
Finish: black, silver
Year: 1982