I put a set of ALPS heads in my CT-F1250, to replace the old worn heads. Well, now I'm having a problem adjusting the bias. I've adjusted the azimuth properly and the playback levels and EQ, and that's all peachy. The problem is bias adjustment.
When recording a tape, I change the bias signal generator knob to the bias setting. The deck goes into mono mode, and I adjust the right channel bias setting until the arrows are both lit. Then I record a 3000hz signal from the line input... and the left channel cannot go high enough before running out of potentiometer. The right channel still has a third of its adjustment range left, but the left channel is right at the end and can't go any higher. This means the left channel is under-biased. This is the case for STD, FeCr, and Cr02 tapes. (I don't have metal tapes to test with). Since that left channel is under-biased, anything recorded on the left channel is at significantly lower volume. Which is not fun
What would be causing this? I've already checked for tape skew and tape path problems...
Charles.
When recording a tape, I change the bias signal generator knob to the bias setting. The deck goes into mono mode, and I adjust the right channel bias setting until the arrows are both lit. Then I record a 3000hz signal from the line input... and the left channel cannot go high enough before running out of potentiometer. The right channel still has a third of its adjustment range left, but the left channel is right at the end and can't go any higher. This means the left channel is under-biased. This is the case for STD, FeCr, and Cr02 tapes. (I don't have metal tapes to test with). Since that left channel is under-biased, anything recorded on the left channel is at significantly lower volume. Which is not fun
What would be causing this? I've already checked for tape skew and tape path problems...
Charles.
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