Hey guys! so I'm new to this forum and this is my first ever post!
So I recently bought a Tascam 688 Midistudio from an ebay seller for a steal of a price! I knew there would be some problems with it because it was being sold as is, but I felt comfortable buying the unit and trying to fix it. Usually, with the old Tascams the problems can be quelled with a new motor and/or capstan belt. So I figured this would be a relatively easy job.
I started out by testing the unit. The FF and RR(sometimes the rewind only works for a couple seconds) buttons worked well enough, but I could not get the tape to play(using the play button), the heads would engage the cassette, but then would fall back down after a second or two. I thought this was odd since FF and RR were working. So I opened the unit up and got it to play with no tape in it by holding these two small black arms that are usually pushed up when a tape is in the unit. When I did this, I noticed that whenever I pressed the play button, it would run flawlessly and not stop randomly. But only one motor would be moving. So I figured the motor that wasn't moving was broken. I replaced it and tried testing it again, it still didn't move and all the issues I described persisted. However when I was inside the unit I did notice that the motor I replaced would whir like it was idling when it touched the metal surface of the unit. So I don't think the replacement motor was a dud, but I still have no idea what the problem could be, any help would be appreciated!
So I recently bought a Tascam 688 Midistudio from an ebay seller for a steal of a price! I knew there would be some problems with it because it was being sold as is, but I felt comfortable buying the unit and trying to fix it. Usually, with the old Tascams the problems can be quelled with a new motor and/or capstan belt. So I figured this would be a relatively easy job.
I started out by testing the unit. The FF and RR(sometimes the rewind only works for a couple seconds) buttons worked well enough, but I could not get the tape to play(using the play button), the heads would engage the cassette, but then would fall back down after a second or two. I thought this was odd since FF and RR were working. So I opened the unit up and got it to play with no tape in it by holding these two small black arms that are usually pushed up when a tape is in the unit. When I did this, I noticed that whenever I pressed the play button, it would run flawlessly and not stop randomly. But only one motor would be moving. So I figured the motor that wasn't moving was broken. I replaced it and tried testing it again, it still didn't move and all the issues I described persisted. However when I was inside the unit I did notice that the motor I replaced would whir like it was idling when it touched the metal surface of the unit. So I don't think the replacement motor was a dud, but I still have no idea what the problem could be, any help would be appreciated!