{"id":1197,"date":"2013-10-03T10:20:47","date_gmt":"2013-10-03T08:20:47","guid":{"rendered":"https:\/\/zz-indigo.mavipet.sk\/?p=1197"},"modified":"2019-10-29T18:04:54","modified_gmt":"2019-10-29T18:04:54","slug":"chory-commodore-116-4","status":"publish","type":"post","link":"https:\/\/zz-indigo.mavipet.sk\/?p=1197","title":{"rendered":"Chor\u00fd Commodore 116 (4)"},"content":{"rendered":"

Tak nap\u00e1lil som nov\u00e9 ROMky a nak\u00fapil elektrolity tak\u017ee som sa ve\u010der mohol vrhn\u00fa\u0165 na \u010fal\u0161ie pokusy z opravou. V\u00fdsledok rovnak\u00fd al niektor\u00e9 chyby som do\u010dasne vyl\u00fa\u010dil.<\/p>\n

<\/p>\n

Ako prv\u00e9 som vymenil v\u0161etky elektrolity. Teda a\u017e na jeden ktor\u00fd je podla sch\u00e9my 100n ale v re\u00e1li je 1uF, Jedn\u00e1 sa o kondenz\u00e1tor na vstupe 7805 stabiliz\u00e1tora. Podla osciloskopu sa zvlnenie pri CPU a TED-ovy moc nezmenilo.\u00a0 Ale vr\u00e1\u0165me sa k spr\u00e1vnemu rie\u0161eniu tohto probl\u00e9mu:<\/p>\n

    \n
  1. Kontrola funk\u010dnosti U1 TED \u2013 Nem\u00e1m ako Ale testovan\u00e9 sign\u00e1ly vyzeraj\u00fa spr\u00e1vne.<\/li>\n
  2. Kontrola funk\u010dnosti U2 CPU \u2013 Nem\u00e1m ako Ale testovan\u00e9 sign\u00e1ly vyzeraj\u00fa spr\u00e1vne. Po odobrat\u00ed CPU \u010dierna obrazovka.
    \n<\/strong><\/li>\n
  3. Kontrola spr\u00e1vnosti nap\u00e4t\u00ed na DRAM pam\u00e4tiach. Datov\u00e9 linky \u2013 Podla osciloscopu s\u00fa \u00farovne na link\u00e1ch spr\u00e1vne. Pre L cca 0.4V pre H 4.2V<\/strong><\/li>\n
  4. Kontrola multiplexou U7 a U8 V pr\u00edpade +4 U9 a U10 A \u00farove\u0148 nap\u00e4t\u00ed na adresn\u00fdch link\u00e1ch. \u2013 Podla osciloscopu s\u00fa \u00farovne na link\u00e1ch spr\u00e1vne. Meran\u00e9 na strane pam\u00e4t\u00ed.<\/strong><\/li>\n
  5. Kontrola CS sign\u00e1lu pre ROMky \u2013 Testovan\u00e9 a v poriadku. CS pre BASIC sa ale vol\u00e1 m\u00e1lokedy. Kontrolovan\u00e9 priamo na Pam\u00e4ti ale aj na v\u00fdstupe TED-a<\/strong><\/li>\n
  6. Kontrola amplit\u00fady ROM adresn\u00fdch liniek. \u2013 Podla osciloscopu s\u00fa \u00farovne na link\u00e1ch spr\u00e1vne. Meran\u00e9 na strane pam\u00e4t\u00ed.<\/strong><\/li>\n
  7. Kontrola PLA a ROM ich v\u00fdmenou za overen\u00e9. \u2013 BASIC\/KERNAL<\/strong> ROM kontrolovan\u00e9 a vyzeraj\u00fa spr\u00e1vne.<\/li>\n<\/ol>\n

    Celkovo mi zatia\u013e vych\u00e1dzaj\u00fa nasledovn\u00e9 probl\u00e9my.<\/p>\n

      \n
    • Chybn\u00e9 DRAM ktor\u00e9 hl\u00e1saj\u00fa hl\u00faposti. – Preferovan\u00fd probl\u00e9m \ud83d\ude42<\/strong><\/li>\n
    • Nejak\u00fd probl\u00e9m z CPU ktor\u00fd ale nieje odhadnute\u013en\u00fd na z\u00e1klade vonkaj\u0161\u00edch liniek.<\/li>\n
    • Nejak\u00fd probl\u00e9m z TED ktor\u00fd ale nieje odhadnute\u013en\u00fd na z\u00e1klade vonkaj\u0161\u00edch liniek.<\/li>\n<\/ul>\n

      Pl\u00e1novan\u00e9 kroky:<\/p>\n

        \n
      1. V\u00fdmena posledn\u00e9ho elektrolitu a pridanie e\u0161te dvoch na neosaden\u00e9 miesta. neosaden\u00e9 CP na doske.<\/li>\n
      2. V\u00fdmena blokovac\u00edch keramick\u00fdch 100n a 200n kondenz\u00e1torov.<\/li>\n
      3. M\u00e1m s\u013e\u00faben\u00fd na zapo\u017ei\u010danie \u010fal\u0161\u00ed vrak Commodore 116-16 a sk\u00fasim prehodi\u0165 PLA, TEDa alebo CPU.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

        Tak nap\u00e1lil som nov\u00e9 ROMky a nak\u00fapil elektrolity tak\u017ee som sa ve\u010der mohol vrhn\u00fa\u0165 na \u010fal\u0161ie pokusy z opravou. V\u00fdsledok rovnak\u00fd al niektor\u00e9 chyby som do\u010dasne vyl\u00fa\u010dil.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[21,3],"tags":[],"class_list":["post-1197","post","type-post","status-publish","format-standard","hentry","category-commodore","category-hw-a-sw"],"_links":{"self":[{"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/posts\/1197","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1197"}],"version-history":[{"count":1,"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/posts\/1197\/revisions"}],"predecessor-version":[{"id":2684,"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=\/wp\/v2\/posts\/1197\/revisions\/2684"}],"wp:attachment":[{"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1197"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1197"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zz-indigo.mavipet.sk\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1197"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}