Hi Tom,
>unfortunately I have to notice, that the pot R11 2k Ohm is not the cause for >that little problem I got with the power supply. As I described, I changed >the whole part platine 99P0108-000 (where this pot is mounted on) and I'm >still not able to start the unit. I think Alex was suggesting that the pot be adjusted. Some Lisas won't start up because the power supply has drifted over 5.1 volts, so the crow-bar (over-voltage protection) engages, and the Lisa won't start up. In that case, you hear the tell-tale "click, click, click" but I guess you don't hear that. Alex had this problem with his Lisa and the 1.2 Amp power supply, which is a bit different as you found. >I have the 150 V at the two 470 microfarad after the rectifier, so the unit >could work if it wouldn't be permanently inhibited. Perhaps you should check the safety interlock switch on the back panel? We have needed a schematic for this (1.8 Amp) power supply for a long time... perhaps you would be willing to draw it? Happy New Year! James James MacPhail "Think not of engineering as art, [EMAIL PROTECTED] but of art as engineering" Sigma Seven Systems Ltd. [EMAIL PROTECTED] <http://SigmaSevenSystems.com> -- LisaList is sponsored by <http://lowendmac.com/> and... Shop buy.com and save. <http://lowendmac.com/ad/buy.com.html> Support Low End Mac <http://lowendmac.com/lists/support.html> LisaList info: <http://lowendmac.com/lists/lisa.html> 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/lisalist%40mail.maclaunch.com/> Using a Macintosh? Get free email and more at Applelinks! <http://www.applelinks.com>
