Hey,
I have an old Craig head unit that I am bringing back to life. After changing the belt in it, I ran the tape for a few min with no issues- but then it stopped. There seems to be some intermittent issue, but it is "not working" more than it is working.
Checked all solder joints, etc.. Wiggled components, does not seem to make a difference.
Looking for ideas? Or if anyone happens to have a datasheet for the CX-065 motor controller chip? (X-Ref may be M51725L and NTE1300- but the NTE datasheet does not have much information https://www.nteinc.com/specs/1300to1399/pdf/nte1300.pdf)
Schematic linked. Capture — ImgBB
I have an old Craig head unit that I am bringing back to life. After changing the belt in it, I ran the tape for a few min with no issues- but then it stopped. There seems to be some intermittent issue, but it is "not working" more than it is working.
Checked all solder joints, etc.. Wiggled components, does not seem to make a difference.
Looking for ideas? Or if anyone happens to have a datasheet for the CX-065 motor controller chip? (X-Ref may be M51725L and NTE1300- but the NTE datasheet does not have much information https://www.nteinc.com/specs/1300to1399/pdf/nte1300.pdf)
Schematic linked. Capture — ImgBB
An externally hosted image should be here but it was not working when we last tested it.
There is only a single drive motor. When the motor spins, everything is fine.. Then, the motor just stops. Seems to be possibly time/heat related.
I'll try and get some video of what happens. I don't think it is a mechanical problem. if I bypass the transistor that drives the motor- all of the mechanical stuff works fine.. It just plays WAY too fast because the speed regulation is being bypassed.
Video: 1104201004
You can see/hear when I short across the transistor.. Motor and mechanical all work fine..
If I leave it off for an hour or so, it will play fine for 2 min.. then stop.
You can see/hear when I short across the transistor.. Motor and mechanical all work fine..
If I leave it off for an hour or so, it will play fine for 2 min.. then stop.