{"id":350,"date":"2025-03-10T10:36:23","date_gmt":"2025-03-10T09:36:23","guid":{"rendered":"https:\/\/abc80.dk\/?page_id=350"},"modified":"2025-03-10T10:50:24","modified_gmt":"2025-03-10T09:50:24","slug":"power-supplies","status":"publish","type":"page","link":"https:\/\/abc80.dk\/?page_id=350","title":{"rendered":"Power supplies"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">9V to +5V<\/h2>\n\n\n\n<p>The 9V from the monitor is regulated down to two rails of 5V.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"694\" height=\"557\" src=\"https:\/\/abc80.dk\/wp-content\/uploads\/2025\/03\/1000004231.png\" alt=\"\" class=\"wp-image-319\" srcset=\"https:\/\/abc80.dk\/wp-content\/uploads\/2025\/03\/1000004231.png 694w, https:\/\/abc80.dk\/wp-content\/uploads\/2025\/03\/1000004231-300x241.png 300w\" sizes=\"auto, (max-width: 694px) 100vw, 694px\" \/><\/figure>\n\n\n\n<p>This is done on a long PCB located on the black heatsink. The rails are named +5A and +5 B. During debugging it should be possible to connect a +5 V lab psu with current limiter on each rail of the PCB have be unconnected. In that way a more gentle startup can be made to avoid smoke during first startups<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">+\/- 17V to +\/- 12V<\/h2>\n\n\n\n<p>The +\/- 17V power comes from the monitor and regulated to 12 V levels.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"479\" src=\"https:\/\/abc80.dk\/wp-content\/uploads\/2025\/03\/1000004230-1024x479.png\" alt=\"\" class=\"wp-image-308\" srcset=\"https:\/\/abc80.dk\/wp-content\/uploads\/2025\/03\/1000004230-1024x479.png 1024w, https:\/\/abc80.dk\/wp-content\/uploads\/2025\/03\/1000004230-300x140.png 300w, https:\/\/abc80.dk\/wp-content\/uploads\/2025\/03\/1000004230-768x359.png 768w, https:\/\/abc80.dk\/wp-content\/uploads\/2025\/03\/1000004230.png 1080w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The +\/-12V supply lines are only used for RS232 levels and on the ABC Bus connector. So for starting up the ABC 80 it is not important during debugging.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>9V to +5V The 9V from the monitor is regulated down to two rails of 5V. This is done on a long PCB located on the black heatsink. The rails are named +5A and +5 B. During debugging it should be possible to connect a +5 V lab psu with current limiter on each rail [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-350","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Power supplies - Luxor ABC 80<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/abc80.dk\/?page_id=350\" \/>\n<meta property=\"og:locale\" content=\"da_DK\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Power supplies - Luxor ABC 80\" \/>\n<meta property=\"og:description\" content=\"9V to +5V The 9V from the monitor is regulated down to two rails of 5V. 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