Teac X2000M channel wandering

panreels

Member
Aug 28, 2016
52
5
23
I have a Tascam BR-20 and Teac X2000M, I was running some MRL test tape (7 ½ “& 15”) the BR-20 and X2000M where with in factory spec. from 30 to 20KHz, I was using a two channel scope so I could watch both cannels at the same time, but on the X2000M there was a problem, the left channel sine wave above 9KHz started wandering back and forward why’ll the right channel is rock steady, it did this on both the 2 track and 4 track heads, the Br_20 was rock steady on both channels through the complete frequency rang, dose anyone know what may be causing this?.
 
Last edited:

Curt Palme

Well-Known Member
Jan 25, 2012
86
1
83
My first guesses would be a worn head. Teac heads can be very soft, and it's often that I see grooves worn in the heads. The tape rides up and down these tiny grooves, causing HF fluctuations. If that's not it, then check the tape path and the pinch rollers for uneven wear, causing the tape to move out of the path it should be taking. I'm sure this is a physical tape alignment problem rather than something electronic.
 

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