Build Your Own Arcade Controls Forum
Main => Monitor/Video Forum => Topic started by: MB on February 06, 2010, 06:48:30 am
-
Hi everybody,
I've been researching and reading the BYOAC forum for months now and getting ready to choose between an LCD computer-screen and an old TV.
Last week I bought a second hand Sony KV-25KVD. I installed Soft 15Khz (built 48) and Catalyst 6.5. for my Radeon 7000 ATI PCI video card.
In Soft 15 Khz I clicked on the 15Khz,25 and 31khz buttons. After that I used Quickres to switch the resolution to 640x480 16bit. I then picked up my computer
and took it to the Sony. I try to move the TV as little as possible because it weighs a TON! I used the VGA to SCART cable I bought from Wolfsoft.de to connect the two.
Yesterday I got a picture on the TV. It was showing two wide black borders above and below the screen. Between the upper black border and the windows desktop
there was a green, red and blue line. Today I hooked it up again but now the picture won't even stand still at all.
The only thing I can think of is that it is because the TV doesn't do 60 Hz(NTSC) and only 50 Hz(PAL) but I'm not sure.
Is there anything I can do to troubleshoot and get the TV to work or do I have to go and find myself a TV that also does 60HZ (NTSC)?
It would be great if anybody could point me in the right direction!
Thanks in advance.
P.S. sorry for the long read, but I wanted to give all the information I thought may be usefull. ?
-
I'm getting closer,
I now got the screen to stop scrolling by de-installing soft 15 KHz and reinstalling it with just the 15 KHz option clicked and not the other two.
The letterboxed problem is also gone because I found out that the TV was set to 16:9 mode and not 4:3. Strange because it's a 4:3 screen
and I wasn't expecting settings for screenformats on it. Live and learn I guess.
All that's left now is that there's quite a bit of overscan but I found the servicemanual on the internet and will try to fix that this afternoon.
O and the white colours seem to flicker but that's not real noticable in most games. Not sure what causes that.
Hope this helps others with similar problems.
Marten.
-
It's certainly possible to use 50hz modes in lieu of 60hz ones to get a working picture on this display. I encourage you to read up about setting custom modes in soft 15khz and advancemame. Addtionally, check and see if your graphics card software allows you to set custom refresh rates.