Tascam 22-4 Play back volume at repro head for track 4 very faint
Just picked up a Tascam 22-4 on eBay and I am having trouble with channel 4 on playback. Vu meter is reading a good signal when I put track 4 into record and monitor other tracks in sync mode (at record head) but when I go to playback, track 4 only recorded a faint signal. I have to turn the output all the way up to hear it. Tried it again with record at higher level but still not much difference. I alsotried flipping the tape over and playing it backwards only to see if a signal recorded on track 4 which would be on track 1 backwards. No signal or very little so the recording vu should input but it did not record on the tape. Any suggestions?