I'v got a 8" Hami lcd that got a/v and vga inputs. (Some versions got RF also). The menu where input source is selected however show three alternatives: vga, a/v and s-video. This made me wonder if s-video were supported but just missing the connector.
After spending a few hours looking in datasheets, guessing and measuring with my multimeter I got to the conclusion that it should be possible to add a s-video input. And so I did.
Here is some pictures of how.
Here is one of the connection on the controller pcb. The 3 pin connector and a capacitor were missing. I soldered cables to where the connector should go and moved a capacitor that were connected to an unused a/v input of the circuit. (It has support for several a/v and/or s-video channels).
After spending a few hours looking in datasheets, guessing and measuring with my multimeter I got to the conclusion that it should be possible to add a s-video input. And so I did.
Here is some pictures of how.
Here is one of the connection on the controller pcb. The 3 pin connector and a capacitor were missing. I soldered cables to where the connector should go and moved a capacitor that were connected to an unused a/v input of the circuit. (It has support for several a/v and/or s-video channels).