Tape deck TEAC W 860R - Medições em laboratório, porque depois do conserto tem muito mais a se fazer

Links to parts of this video: Introduction 0:00 Why was this video so long? 1:29 What does this model look like from the outside 4:40 What this model looks like inside 8:39 Itinerary of the verification and calibration that was carried out on it 11:30 Playback speed adjustment 16:06 Zero dB adjustment (Dolby level) 17:47 Frequency response at 20:30 playback Wow & Flutter measurement (fluctuation or tremolo) 25:26 Recording frequency response (BIAS) 28:17 Test with music 38:53 Final considerations 40:32 The TEAC W-860R tape deck is a good representative of the devices that were sold in the late 90s. Despite being a basic model, it has interesting features such as simultaneous recording on both decks, pitch control and Dolby HX. But the main objective of this video is not just to show this TEAC model. Far from this, we show step by step everything that is done in the laboratory after the repair itself. Well, it's not enough to change the belt to keep a tape deck working satisfactorily. After a tape deck is put into operation, several checks and adjustments must be made. You need to adjust the speed, equalization, Dolby level, BIAS and recording volume. The results obtained on the bench must be evaluated according to the manufacturer's manual, to assess whether the device is really in order, capable of recording and playing back tapes with good quality and, importantly, that the tapes recorded on it will play equally well if played back. on other tape decks. We show step by step how the measurements were made in the laboratory and compare the results with what TEAC specifies in the service manual for this model. You will see that despite more than 20 years of use, this tape deck has proven to be robust, because it still achieves much of the performance that can be expected from it.