I have a Sharp PC-2500 Personal Computer with integrated plotter and LCD display. It's like a PC-1360 calculator. There is a ploblem in the integrated DC power board and is imposible power on the computer. I'm using a DC 6V PSU. I need the board schema or know if somebody has the same problem and know how can i solve it. Regards.

Mornin' folks, Courtesy of a nice chap in Ireland clearing out his shed I'm now the proud owner of: Grundy Newbrain AD Newbrain Disk Controller Newbrain Expansion Interface Newbrain Expansion Interface (x2) that looks like a disk controller but I haven't opened 'em up yet :) 3 PSUs but 2 have been robbed of parts. 4x Microbee II by Microworld. Unfortunately the Newbrain is toast (garbled message on the flourescent display and nothing on either the composite or RF outputs) but maybe with Tony's help I might be able ro resurrect it; I've also found someone who admits to being one of the technical troubleshooters of the 3 wire-wrapped prototypes, which may be handy. Said troubleshooter also worked on the Enterprise 64, so THAT might be handy too :) The Microbee was one of Australia's more popular micros, particularly with schools, before the Apple ][ stomped all over its market. It also sold well in Sweden, which is apparently where these units came from. Z80 based with 32K RAM and, surprisingly, a non-microsloth BASIC in ROM along with a word processor called WordBee. This model also apparently has limited graphics capabilities, but it wasn't until later that models featured colour, decent graphics and CP/M compatibility. In a pre-Amscrap fashion, the video, cassette AND power all came from one 5-pin DIN plug and a wiring harness that resembles a cat-o-nine-tails, according to the pic on the back of the one boxed unit I've got, and I don't have any, or PSUs. Shouldn't be too hard to find out what goes where though, and I've got feelers out on aus.* newsgroups to see if anyone's got spares. The hurriedly-assembled Newbrain page is already up and I'll do the Microbee one today, if anyone wants pix. cheers -- adrian/witchy www.binarydinosaurs.co.uk - the online computer museum www.snakebiteandblack.co.uk - monthly gothic shenanigans