5 disc carousel CD player TEAC PD D850
 

This unit is having difficulties playing audio CD-Rs. Not every CD-R has
problems, only some of them and the problem consists in not locking into the
tracks. The strange thing is that the CD-Rs are all of the same brand, same
manufacturing date and even from the same canister!(TDK 48X, 80min). I
opened the unit thinking that perhaps the signal gain need to be slightly
adjusted. I found 4 potentiometers called:
1. T-OFFSET
2. T-GAIN
3. E F/BAL
4. FREERUN
I tried to adjust them with no avail. Any leads?
Thank you very much,
Gene

If you've adjusted them all to specification then the pickup is
acting normally and will not play all CD-R's. If you've just
turned the controls without measuring anything, then you're lucky
it reads anything at all.

EpsilonRho wrote:
This unit is having difficulties playing audio CD-Rs. Not every CD-R has
problems, only some of them and the problem consists in not locking into the
tracks. The strange thing is that the CD-Rs are all of the same brand, same
manufacturing date and even from the same canister!(TDK 48X, 80min). I
opened the unit thinking that perhaps the signal gain need to be slightly
adjusted. I found 4 potentiometers called:
1. T-OFFSET
2. T-GAIN
3. E F/BAL
4. FREERUN
I tried to adjust them with no avail. Any leads?
Thank you very much,
Gene