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I have a Sony M-450 microcassette recorder that I just bought on eBay. It appears almost identical to the M-430. For approximately a minute the tape played properly but then the tape stopped playing. When I opened the tape door, a lot of tape had come out of the cassette. On studying what was causing it, I realized only the supply spindle is turning which just keeps pushing the tape out of the cassette and it is not being taken up by the other reel. Would that be caused by a stretched drive belt under the motherboard? Thanks if you can help.
rjaa there are multiples reasons why this can happen. From hardened pinch rollers, hardened idler wheel which causes lack of take-up torque, bent capstans, poor tape guide alignment or the drive hub could be slow or not moving at all, while the pinch roller is still feeding the ribbon, and many more. You will have to disassemble your recorder and take a good look at what is going on. Check the rollers for sure and clean the capstan shaft and rollers. The drive belt is a highly unlikely cause. Since it is very similar to the M-430 these guides might help Sony M-430 Microcassette-Corder Repair If unsure of what you are looking at you can always post some images with your question. Use this guide Adding images to an existing question for that. Also, this manual will help you out further ManualsLib - Makes it easy to find manuals online!
