On Wed, 26 May 2004, Jeff Walther wrote: > At 09:46 -0700 05/26/2004, Cal Grant wrote: > > >My power supply just went out - fuse blows repeatedly. Does anyone have > >the schematic or other service info on this unit? The label indicates: > > I don't have an internal schematic, but you can get the pin-out > information for the connectors here: > <http://www.io.com/~trag/Umax_ATX_PS_rev_2.sea.hqx> as well as > instructions on how to build an ATX to Umax adapter. It might be > easier in the long run to just replace the power supply with an ATX > model as needed. > > Jeff Walther >
Jeff, Thanks for the info - I'll go there and see what I can do. I've been tracing out the circuit, which, after the primary side, is very complicated, and I'm not going to be able to draw out the secondary part. All primary components checked okay, so it's a secondary (control/feedback) problem, which I'm not going to be able to fix without a schematic, and possibly not even with one. Switching supplies are tough. I should simply replace this one, but would like one that will fit into the J700. I'll check out that info. Thanks! cal -- SuperMacs is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Refurbished Drives | Service & Replacement Parts [EMAIL PROTECTED] | & CDRWs on Sale! | Support Low End Mac <http://lowendmac.com/lists/support.html> SuperMacs list info: <http://lowendmac.com/supermacs/list.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive: <http://www.mail-archive.com/supermacs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
