{"id":7408,"date":"2019-04-03T14:50:35","date_gmt":"2019-04-03T12:50:35","guid":{"rendered":"http:\/\/www.apuliaretrocomputing.it\/wordpress\/?p=7408"},"modified":"2019-04-03T14:50:35","modified_gmt":"2019-04-03T12:50:35","slug":"riparazione-di-cinque-texas-instruments-ti99-4a-ntsc","status":"publish","type":"post","link":"https:\/\/www.apuliaretrocomputing.it\/wordpress\/2019\/04\/03\/riparazione-di-cinque-texas-instruments-ti99-4a-ntsc\/","title":{"rendered":"Riparazione di cinque Texas Instruments TI99-4a (modelli NTSC)."},"content":{"rendered":"<p style=\"text-align: justify;\">Di seguito i video che documentano la realizzazione di cinque riparazioni in serie effettuate dal nostro responsabile di Laboratorio, Antonio Caradonna. I computer sono di propriet\u00e0 del nostro socio Radu Decebal-Ciurchea.<\/p>\n<p style=\"text-align: justify;\"><strong>Riparazione 1\/5. <\/strong><\/p>\n<p style=\"text-align: justify;\">Difetto schermo nero. Soluzione: sostituita la CPU.<\/p>\n<div style=\"width: 640px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-7408-1\" width=\"640\" height=\"368\" poster=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/Screenshot_20190403-150321_Video-Player.jpg\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0005.mp4?_=1\" \/><a href=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0005.mp4\">https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0005.mp4<\/a><\/video><\/div>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\"><strong>Riparazione 2\/5. <\/strong><\/p>\n<p style=\"text-align: justify;\">Difetto schermo nero. Soluzione: sostituita la CPU.<\/p>\n<div style=\"width: 640px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-7408-2\" width=\"640\" height=\"368\" poster=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/Screenshot_20190403-150031_Video-Player.jpg\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0004.mp4?_=2\" \/><a href=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0004.mp4\">https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0004.mp4<\/a><\/video><\/div>\n<p>&nbsp;<\/p>\n<p style=\"text-align: left;\"><strong>Riparazione 3\/5.<\/strong><\/p>\n<p style=\"text-align: justify;\">Difetto schermo nero. Soluzione: sostituita la ROM 1501392-27.<\/p>\n<div style=\"width: 640px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-7408-3\" width=\"640\" height=\"368\" poster=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/Screenshot_20190403-150612_Video-Player.jpg\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0007.mp4?_=3\" \/><a href=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0007.mp4\">https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0007.mp4<\/a><\/video><\/div>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\"><strong>Riparazione 4\/5. <\/strong><\/p>\n<p style=\"text-align: justify;\">Difetto schermo nero. Soluzione: sostituita la ROM 1501392-26.<\/p>\n<div style=\"width: 640px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-7408-4\" width=\"640\" height=\"368\" poster=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/Screenshot_20190403-150453_Video-Player.jpg\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0006.mp4?_=4\" \/><a href=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0006.mp4\">https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0006.mp4<\/a><\/video><\/div>\n<p>&nbsp;<\/p>\n<p style=\"text-align: justify;\"><strong>Riparazione 5\/5.<\/strong><\/p>\n<p style=\"text-align: justify;\">Difetto schermo nero. Soluzione: rimosso un chip TMS9901 NL che in un precedente tentativo di riparazione era stato erroneamente posizionato al posto di un chip custom, il quale \u00e8 stato dunque ricollocato nella sua sede. Sostituite la CPU ed il chip\u00a0TIM9904ANL, che causava un corto circuito.<\/p>\n<div style=\"width: 640px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-7408-5\" width=\"640\" height=\"368\" poster=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/Screenshot_20190403-150939_Video-Player.jpg\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0009.mp4?_=5\" \/><a href=\"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0009.mp4\">https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-content\/uploads\/2019\/04\/VID-20190403-WA0009.mp4<\/a><\/video><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Di seguito i video che documentano la realizzazione di cinque riparazioni in serie effettuate dal nostro responsabile di Laboratorio, Antonio Caradonna. I computer sono di propriet\u00e0 del nostro socio Radu Decebal-Ciurchea. Riparazione 1\/5. Difetto schermo nero. Soluzione: sostituita la CPU. &nbsp; Riparazione 2\/5. Difetto schermo nero. Soluzione: sostituita la CPU. &nbsp; Riparazione 3\/5. Difetto schermo&#8230;<\/p>\n","protected":false},"author":1,"featured_media":7412,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[126],"tags":[40,139,227],"class_list":["post-7408","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-laboratorio","tag-retrocomputing","tag-texas-instruments","tag-ti99-4a"],"_links":{"self":[{"href":"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-json\/wp\/v2\/posts\/7408","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-json\/wp\/v2\/comments?post=7408"}],"version-history":[{"count":0,"href":"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-json\/wp\/v2\/posts\/7408\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-json\/wp\/v2\/media?parent=7408"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-json\/wp\/v2\/categories?post=7408"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.apuliaretrocomputing.it\/wordpress\/wp-json\/wp\/v2\/tags?post=7408"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}