oddomatik Posted October 5, 2022 Share Posted October 5, 2022 (edited) I scoured the internet, and have even been in touch with the gurus who have been doing radio repair for a long time. Until now, there hasn't been any good circuit guides made available for the Hitachi KM-1520ZC that I'm aware of. I took a chance on an eBay purchase of a 1972 KM-1520H radio manual (made for cars from Detroit, apparently) and it paid off. The circuit appears identical - at least as far as my amateur self got into it to identify a problematic trace in my own stereo. The faceplate seems to be the main difference between the models. I'd be interested to see if anyone else identifies any other differences. I scanned and processed it, hopefully someone can find it helpful at some point as I did. https://objects-us-east-1.dream.io/dox/KM-1520H.pdf EDIT: Capacitor C38 is 3.3uF/25V on my radio - as opposed to 10uF/25v spec'd in this manual (for those doing electrolytic capacitor replacements) Edited October 22, 2022 by oddomatik 1 Quote Link to comment Share on other sites More sharing options...
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