On Sun, Mar 3, 2013 at 7:29 PM, paul <[email protected]> wrote: > On 3/3/2013 3:07 PM, > [email protected].**com<[email protected]>wrote: > > Message: 1 >> > > Date: Sun, 3 Mar 2013 10:54:24 -0600 > > From: Dave Park > >> <[email protected]> >> > > To: [email protected] Subject: [Ql-Users] > >> [QL-Users] Coming up in the next few weeks. >> > > Hi all, >> > > I have also been working on restoring a Thor XVI. This unit had a >> leaked batery which corroded the circuit board and some of the >> components. I have got it to where it boots and I can see there's >> text, but the video image is so distorted I cannot read what it says. >> This Thor has the 2MB RAM, two floppies and a Rodime HD of unknown >> size. If it ends up being unrepairable, I would be happy to part it >> out to get other Thors up and running. >> > > I am also very interested in finding the following: >> > > * A schematic for the Thor version that piggy-backed an 020 onto a >> BBQL (specifically the 020 mod) * JEDEC files/equations for any >> custom logic in any interface cards * a way to re-implement QL video >> in 32-bit wide RAM, and with an improved output format. I would very >> much like to produce a "QL Video Card" that makes the on-board video >> unnecessary, and then disable the onboard video (shame that IC does >> so much else) *broken Gold Cards/Super Gold Cards for spares/repair >> > > Dave >> > > Dave, I got to sort of wonder if that is a video format problem, USA > video format vs Uk or European??? > (just the thoughts that passed thru yee old brain) > > > -- > Paul Holmgren > Mine: 2 57 300-C's in Indy > Hers: 05 PT GT R/T HO Stage 1 > Hoosier Corps L#6 > "It could probably be shown by facts and figures that there is no > distinctly native American criminal class except Congress." > Samuel Clemens > ______________________________**_________________ > QL-Users Mailing List > http://www.q-v-d.demon.co.uk/**smsqe.htm<http://www.q-v-d.demon.co.uk/smsqe.htm> >
The Thor XVI only has monitor output, and it's connected to an Acorn RGB TTL monitor. The video doesn't just have timing distortion, but also noise and inversion. I need to work through the entire video circuit with an oscilloscope and figure out what's happening. Separately, does anyone have the datasheets for the MC1377P - I can't find them anywhere... Dave _______________________________________________ QL-Users Mailing List http://www.q-v-d.demon.co.uk/smsqe.htm
