First post, by Jonas-fr
I stumbled upon this video card on a really nice lunchbox 486 (basically a Dolch clone). The computer has an embedded monochrome flat panel hooked directly on the card (multicoloured wires at the back) but also got a VGA port on the bracket and a switch to select between LCD and external/VGA display. The cards also have dipswitches. The problem is that VGA output isn't working (no signal detected with neither of my two "tolerant" LCD (NEC Multisync and Dell U2410F)) and given there isn't any marking or FCC-ID on the card I cannot find any documentation about it to see how I can make the external display work. Maybe it's just a configuration (dipswitches) issue, or maybe the card is faulty on the external display circuitry.
Here's some (big) pics of it :
Overall view (we see the CL-GD610 from Cirrus Logic)
This is the connector which goes to the LCD. It should carry data (video) and power (backlight) since there's only these cables running to the flat panel. Don't know about the pinout nor the protocol (akin to this flat panel controller protocol ?)
Thanks in advance for your help on this ! And if you've got info on the flat panel connector pinout and/or protocol I'm all ears since I would like to replace it with a modern 4:3 IPS while retaining external VGA connectivity !
PS: The BIOS isn't dumped yet but if that could help I'll put this on top of my todo list (I haven't my programmer with me yet so for now it's pretty low on the list)