Hi,
I'm having an issue with my 424. When I got it it needed a new motor, the old one was dead and was too weak to move anything or engage the play / record head. I replaced it with a model EG530YD-2BH, since I was unable to find the original model anywhere. This replacement has the exact same specs as far as I can tell; 2000/4000 rpm, CCW, and 12V. The issue is when it's now turned on, the motor will spin at full speed, as if the A and B pins of the motor are open. When the motor is disconnected, the resistance across the A/B wires on the board are around 30K ohms. Additionally, the speed switch does nothing to change the motor speed, though the pitch knob does speed it up or down slightly. The motor seems to be working fine, and if I short the A/B pins the motor will slow down to it's minimum speed. This makes me think that the motor is not the problem, but it is something in the speed control circuitry. If I can supply any additional details I would be happy to.
Thank you!
Trent
I'm having an issue with my 424. When I got it it needed a new motor, the old one was dead and was too weak to move anything or engage the play / record head. I replaced it with a model EG530YD-2BH, since I was unable to find the original model anywhere. This replacement has the exact same specs as far as I can tell; 2000/4000 rpm, CCW, and 12V. The issue is when it's now turned on, the motor will spin at full speed, as if the A and B pins of the motor are open. When the motor is disconnected, the resistance across the A/B wires on the board are around 30K ohms. Additionally, the speed switch does nothing to change the motor speed, though the pitch knob does speed it up or down slightly. The motor seems to be working fine, and if I short the A/B pins the motor will slow down to it's minimum speed. This makes me think that the motor is not the problem, but it is something in the speed control circuitry. If I can supply any additional details I would be happy to.
Thank you!
Trent