Main > Monitor/Video Forum
How to use SCART for our hobby
Zebidee:
Shorting SCART 16 -> SCART 20 (sync) also works with many (but not all) TVs.
BLASTEROO:
Hi all!
I can't get my Sony TV to auto switch to AV mode by sending 12 volts via molex to scart pin 8.
Diagram:
http://homepage.ntlworld.com/callum.henderson/basement_boomera_000009.htm
I've tested it on two other TVs and they perform the auto switching OK.
Any ideas? ???
Any input appreciated.
orchidius:
hi there again,
I got it to work! Thanks again for your great help. I do however notice 2 minor issues:
1) I seem to lose a tiny bit of screen on the bottom. Half of my taskbar is not visible. Is that normal/adjustable?
2) The whole screen is vibrating a little bit up and down. Is that just because of a sloppy soldering job? Or is this adjustable?
Thanks!!
Zebidee:
--- Quote from: BLASTEROO on December 03, 2010, 10:22:40 pm ---I can't get my Sony TV to auto switch to AV mode by sending 12 volts via molex to scart pin 8.
I've tested it on two other TVs and they perform the auto switching OK.
--- End quote ---
Some TVs don't auto-respond to voltage at pin 8. Rarely, some TVs don't respond, but also won't change mode unless the voltage is present.
Zebidee:
--- Quote from: orchidius on December 04, 2010, 03:53:35 pm ---1) I seem to lose a tiny bit of screen on the bottom. Half of my taskbar is not visible. Is that normal/adjustable?
2) The whole screen is vibrating a little bit up and down. Is that just because of a sloppy soldering job? Or is this adjustable?
--- End quote ---
1. That is just overscan - it is normal for TVs, and means that you lose ~5% around the edges. You might be able to adjust the settings a bit if you can access service mode. You can also choose video mode intelligently (e.g. use 288 line modes for vertical games with 256 lines, so that you can still see all the action).
2. Could be your TV. Adjust vertical hold (if present). Could also be poor sync signal in your cable. test the resistance (ohm meter or multimeter) along the sync lines of your cable. if it is any more than about an ohm, that could be what is causing the problem..