This chart must be used in conjunction with the alignment procedures
This chart is for information only and does not guarantee an exact diagnosis. For warranty purposes and faulty drive mechanism must be returned to Amstrad for replacement. Service agents should not attempt any repairs on the mechanism or to it's P.C.B. PT. No. 270312
3-A Index period------------N---------------Motor rotation 200+/- 5 msec? | Y | Self-read error?--------N---------------Read Error | Y | Write error?------------N---------------Write Error | Y | Interchangeable---------N---------------Interchangeability lead? Error | Y | Disk Drive OK