Philips a10 painter panel aa 690 free download

File name a10_painter_panel_aa_690.pdf

Hi All, > I've just been given an object lesson in sm Ic replacement by my Comet field > technician friend who replaced the "painter" Ic in a Philips 24PW6005 set I > had in for repair. He took 20 mins from start to finish and the set worked > first time, seemingly he has done this about 200 times now so he's obviously > an old hand at the game. > The good thing about the "A10ET1" series of Ic's are the set's > options/geometry/greyscale settings are retained in memory and do not need > to be setup with "painter" replacement.. > The fault was various osg objects appeared down the Lhs within 10 mins of > switch-on followed by the set shutting down. > > Using a "Portasol" gas soldering iron with hot air tip he simply played the > heat around the top of the Ic (not the pins) for a couple of mins and using > a pair of tweezers lifted the Ic cleanly off the board. He then went around > the board pads with soldamop. > Next he applied flux around the board pads and positioned the new Ic and > applied a little solder at the corner pins using a pointed-tip bit. > Following this he applied a little solder at the opposite corners of the Ic > and simply dragged it along the pins with the iron. Finally he used > "Flux-off" rosin spraying it around the Ic and scrubbing with the brush tip > on the aerosol can. > > He made it look so simple and in fact this removes the Ic so cleanly they > can be re-used if found not to be faulty. He wears an anti-static grounding > wrist strap while doing it to minimize damage. > Watching this exercise has given me confidence to try it myself although I > will heed his advice to practice on old boards first till you get the hang > of it. > Now if only we could get the Ic's cheaper!