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Forum Elektroniczne • Moduł zapłonowy
Strona 1 z 1

Moduł zapłonowy

: ndz 11 mar 2007, 12:21
autor: Voltage

: ndz 11 mar 2007, 13:41
autor: kobi
Witam
Scalak o symbolu 12C508A to nie komparator tylko mikroprocesor PIC12C508 firmy Microchip. Jeżeli uszkodzeniu uległ jakiś element dyskretny to naprawa jest jak najbardziej możliwa, jeżeli został uszkodzony procesor to sprawa się znacznie komplikuje - trzeba go wymienić na identyczny zaprogramowany scalak. W układach mikroprocesorowych czasami bardzo trudno znaleźć przyczynę uszkodzenie układu - procesory potrafią się uszkadzać na wiele ciekawych sposobów:)

: ndz 11 mar 2007, 14:56
autor: movzx
Mysle ze mozna by zaczac od zrobienia jakiegos zdjecia calego tego ukladu, zeby bylo wiadomo o czym mowimy :)
Pozdr.

moduł....

: pn 12 mar 2007, 1:27
autor: PI
Witam; temat jest o tyle ciekawy, że w normalnych warunkach seryjne uszkodzenia takiego samego modułu zdarzaja sie niezwykle rzadko. Mysle, że warto wziąć ten temat "na tapetę" - jest tu tyle "mocnych" głów. Ale z pewnością przydałby się własnie jakis obrazek tego modułu, a może i fragment schematu (aplikacji modułu) z urzadzeniami współpracujacymi z tym modułem.
PI

: pn 12 mar 2007, 1:56
autor: movzx
No wlasnie, wiec raczej to nie sam modul jest wadliwy, tylko "cos" z zewnatrz go uszkadza - dopisuje sie do prosby o schemat aplikacji :)
Pozdr.

moduł

: pn 12 mar 2007, 2:14
autor: PI
Własnie wracam z forum "Elektrody" - jest tam cała ostra dyskusja na temat tych modułów. W skrócie - najgorsze sa jakieś podróby z Korei, generalnie leca tr. mocy BU931. BU941 itp. Warto tam wejśc i poczytac. Na temat innych uszkodzen ani słowa - gdzies tam jest wzmianka o OBECNOŚCI mikrokontrolera. :D . Miłej lektury - WARTO!!! :D
PI

moduł

: pn 12 mar 2007, 13:05
autor: PI
Witam, pomyslałem sobie, że podam, gdzie znalazłem niezwykle "twórczą" dyskusję na interesujacy nas temat. Nawiasem mówiąc, co do dalekowschodnich podróbek, czy też tzw. zamienników mam wyrobione zdanie (i wiele innych osób tez). Dobrym przykładem sa "zamienniki" deficytowych układów STK, pr.p. produkcji chińskiej. Nie wytrzymuja one nawet połowy deklarowanych parametrów w zakresie napięcia zasilania i mocy wyjściowej. Być może, to seryjne uszkadzanie sie modułu ma podobne źródło. A oto adres u "konkurencji" :D http://www.elektroda.pl/rtvforum/viewtopic.php?t=134396
W dalszym ciągu miłej lektury,
PI