Home▸ Forums▸ Macintosh 128k 240v Analog Board Component Identification — #18▸ Macintosh 128k 240v Analog Board Component Identification — #18
Post #18 by nvdeynde
Source ForumMacintosh 128k 240v Analog Board Component Identification — #18
CategoryHardware
Post DateWed, 2 Oct 2013 - 17:20
Original URLhttps://68kmla.org/bb/threads/macintosh-128k-240v-analog-board-component-identification.28919/
Post
The other component that failed was a RIFA 40/085/56 GPC metallised film capacitor. I think the board reference is C37. Or the component is next to C37.Before I turned on the Macintosh I checked the analog board to assess its condition. I noticed that the film capacitor's case was cracked in places.

Once the Macintosh was turned on the capacitor exploded!
Click to expand...
You can actually still buy the identical filter capacitors. There are 3 on the board and are from Kemet. Here are the part numbers and correct values for the International 240 Volts Analog board.

The filter capacitors have the following values:

-2x 4700pf 250Vac - Kemet PME271Y447MR30

http://be.mouser.com/ProductDetail/Kemet/PME271Y447MR30/?qs=sGAEpiMZZMv1cc3ydrPrF85GIl804cbNf9hsfZMK6uI%3d

-1x 0.47uf 250vac - Kemet PME271M647KR30

http://be.mouser.com/ProductDetail/Kemet/PME271M647KR30/?qs=sGAEpiMZZMv1cc3ydrPrF85GIl804cbNz76Q8vgSP44%3d

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