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Home Forums 68kMLA TAM — #68
Post #68 by falen5
Source Forum68kMLA
CategoryHardware
Post DateWed, 20 May 2015 - 21:32
Original URLhttps://68kmla.org/bb/threads/tam.1948/
Post
actually done some research. The 2 small caps are varistors. The chip is a rectifier. I took the rubber covers off the 2 varistors and managed to get the serial numbers. The second one has its lower section (between the 2 pins) blown out completely,   far worse than the first. The switch for selecting 230v/110v wires are soldered in amongst these varistors.  I made sure it was on 230 volt.

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thinking about it... the guy who sold it to me made a point of telling me about this even though he had it set.........   Ive bought many things with switchable voltage but have never had a case where I was told about the 230volt switch 2 or 3 times.

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he sold it to me for 150 knowing if I got it working it could get 1/2 grand......................starting to think he knew more that he said........

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anyway I have the values of all the blown parts............will order them up.....along with a bucket of 6.3amp fuses.

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with the correct fuse it should not explode again? ....or could it............maybe a 4 amp fuse would be better.

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gave it a wash and it appears that it was the 2 varistors , rectifier and maybey the 2 470uf caps that blew.

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feck it....will buy the similar board and if it is too different to this one then hopefully it will have these components

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washed.JPG

mp.ls