> -----Original Message----- > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of tony duell > Sent: 18 October 2015 18:36 > To: General Discussion: On-Topic and Off-Topic Posts > Subject: RE: Opening a DECserver 90M External PSU > > > > > > I had another go today, but I fail to see how you managed to pry > > > this thing apart without causing much more damage than appears in your > photo. > > > What kind of tool did you use? > > > > My usual technique to deal with these sort of brick and wall-wart PSUs > > that are glued together is to carefully squeeze their plastic sides in > > a small padded vise to break the glue joint. With practice, you can > > split > > If possible you want to squeeze the 'inner member' of the joint. So what I do is > put the jaws of the vice just to one side of the seam and squeeze, and if that > doesn't help then turn the whole thing over and sqeeze on the other side of the > seam. > > > one of these open with little to no damage. Don't be tempted to use a > > mallet as you could with really old linear transformer wall-warts though. > > The g-forces generated by a mallet will break components off of a pc > > board in a switchmode PSU. > > Or the other old trick for linear PSU bricks (again, don't try it with SMPSUs) > -- hold the cables about 2' from the unit and swing it round so that it hits the > bench or floor. That often cracks them open with suprisingly little damage. > > Oh for the days when we had screws holding such things together! > > -tony > =
Great idea to use a vice, never thought of that. Will give it a go. Thanks Rob
