https://spectrumforeveryone.com/wp-content/uploads/2017/11/ZXSpectrum1282_ServiceManual.pdf
Il y a aussi des infos intéressantes sur le lecteur de cassettes ici :
Servicing your +2's Datacorder - Spectrum for EveryoneSpectrum for EveryoneIf you’re beginning to witness the terror of R Tape loading error when loading a game into your +2, then[...]
Spectrum +2 dataset fixRetro 8bit open sourSymptoms:My Spectrum +2 did not load any games from tape, the screen did not change when loading the tape from BASIC, I tried from 48k and 128 mode. The lack of "stripes" hinted that the signal from the tape was not getting to the machine. How does the tape player works?The motion of the tape pulls a varying magnetic field on the head, which creates quite weak signal, that needs to be amplified to be useful. The first amplification happens over the C1815 NPN transistor. The second amplification