Before anything else, I want to greet all the members of this forum on behalf of this humble electronics hobbyist. Well, I have an issue with a vintage device, the Samsung SM-5237. If anyone has the service manual, it would be of great help. Alternatively, could you assist me with the cartridge model it uses? I've searched the web, and there's no information available. I even installed a proxy to broaden the search, but to no avail. I appeal to your help to bring back life to this simple old stereo. Thanks in advance. Greetings.