Hey all, I could use your help. I'm fixing up my old Sony TC-K96R tape deck and I'm trying to troubleshoot what seems to be a power issue. There is no DC voltage getting out of the bridge rectifier, which is the first thing after the the main transformer. The rectifier itself tests fine. I looked at the waveform coming in from the transformer and that's image 1. Looks weird, right? What could cause that, and could that kill the output from the rectifier? Do I have a bad transformer? Image 2 shows the DC output from the rectifier, which also looks weird (for DC) and is way too low voltage.
Modern Classic
Hey all, I could use your help. I'm fixing up my old Sony TC-K96R tape deck and I'm trying to troubleshoot what seems to be a power issue. There is no DC voltage getting out of the bridge rectifier, which is the first thing after the the main transformer. The rectifier itself tests fine. I looked at the waveform coming in from the transformer and that's image 1. Looks weird, right? What could cause that, and could that kill the output from the rectifier? Do I have a bad transformer? Image 2 shows the DC output from the rectifier, which also looks weird (for DC) and is way too low voltage.
6 months ago | [YT] | 1