Re: Lisa 2/10 power supply keeps blowing fuses, help?

From: simon <simski_at_email.domain.hidden>
Date: Thu, 12 Apr 2007 22:44:04 +0200

On 12-apr-07, at 22:26, Patrick Garber wrote:

> are there any caps that are the same as the 2/5 power supply, mine
> is at least partially working but not sure if its complete, would
> also like to see a list of caps for the lisa 2/5 power supply
>

there is a schematic of the apple 120W power supply around. but the best thing would be take apart your power supply and remove and note every capacitor you see. especially the bigger ones and the ones near the line connector and coils. with the bigger ones, note the + and -. the - is marked with a white stripe on the side of the cap, and most of the times the drawings on the pcb (silkscreen) indicate the + and the part number (c1...c20) then you can make a list yourself to publish here. reading the values is sometimes cumbersome. if you see .1/250 it means 0.1 F 250Volt DC. but be careful. sometimes it is marked with something like 250~ which means AC. in that case, go for a high voltage cap for at least 600V DC. Modern caps are smaller that the older ones for the same values.

the bigger caps come in two variaties: with wires on opposite sides and on same sides. keep that in mind when ordering yours

-- 

met vriendelijke groet

Simon Claessen
simski_at_email.domain.hidden


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Received on 2015-07-15 16:37:16

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