It's duplicating the first column pixel across the entire row. Weird. Like the first bit is getting latched in and never released.
On Sun, Jul 8, 2018, 10:33 PM Gregory McGill <[email protected]> wrote: > https://photos.app.goo.gl/ktfiYUmd959bDVpL6 some quick video of what it > does > > On Sun, Jul 8, 2018, 6:35 AM Jeffrey Birt <[email protected]> wrote: > >> The fact that the whole screen clears shows that the LCD is being reset, >> i.e. all LCD driver chips are getting reset and clearing each pixel, the >> default power on state of each pixel is black. So, this should mean that >> the LCD itself is OK, as it can go to both black and clear. A ‘RESET’ goes >> to each chip and this line is toggled as part of the start up sequence. >> >> >> >> I have not looked at the M200 schematic but I’m assuming it uses the >> Hitachi type LCD drivers like the M100/102 does. I seem to recall these >> take a command word, like to set the ‘cursor’/write position and then the >> data to write. Since half of the screen is working properly the data lines >> are getting there OK as are any shared chip select and R/W signals. Any >> chip select from the main board that is unique to each driver would be >> suspect as well as any traces/logic on the LCD board to the affected areas. >> >> >> >> I’m not sure that helps, it will be a case of tracking down signals I’m >> afraid. >> >> >> >> Jeff >> >> >> >> *From:* M100 <[email protected]> *On Behalf Of *Gregory >> McGill >> *Sent:* Saturday, July 7, 2018 2:40 PM >> *To:* [email protected] >> *Subject:* Re: [M100] model 200 arrived.. >> >> >> >> the position seems the same but they come and go with different screen >> data, a clear screen shows no bars.. the menu shows some, a basic listing >> shows more and it changes as lines scroll >> >> >> >> Greg >> >> >> >> On Sat, Jul 7, 2018 at 10:42 AM Jeffrey Birt <[email protected]> >> wrote: >> >> Are you saying the position of the black bars change? >> >> >> >>
