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#1
07-30-2013, 08:53 AM
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Sony PVM-1390
I have a Sony PVM on my bench and I wanted to hookup my Sega Genesis to it via RGB, and damn what a chore that was! I had to basically hunt down resistors and capacitors.. Apparently I can't just connect the RGB lines and composite sync lines.
The RGB lines all needed a 75 ohm resistor added, or the picture was too bright and caused a shrink in the vertical size of the picture. Also, CSync needed a 220uF cap and then a 75 ohm resistor. :S Why so complicated? 
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#2
07-30-2013, 10:05 AM
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Because it's Sony!
Some interesting functions on that connector... http://www.docs.sony.com/release/PVM1390.PDF Page 9. Chip
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#3
07-30-2013, 10:13 AM
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It's not Sony that's the problem, it's Sega, haha.
Check this page out for more detail in getting RGB from various consoles: http://members.optusnet.com.au/evilt.../gamescart.htm With my Atari Jaguar, I can just connect the lines directly and get an awesome picture on my PVM.
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#6
07-31-2013, 07:31 PM
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Not a game, an internet meme.
http://www.youtube.com/watch?v=QH2-TGUlwu4 I'm surprised it didn't have a problem matching the 15khz scanning rate.
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#7
07-31-2013, 07:46 PM
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Quote:
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#10
08-01-2013, 01:15 AM
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I have the Nyan Cat site open in another tab. That's one addictive, rainbow-trailing Pop-Tart. So far I've Nyaned for... 220.7 seconds, and that doesn't count the time I was on there before.
Just so I'm not totally off-topic, I tried a couple of Google search strings for your problem with no luck. That's quite an obscure piece of equipment. Good one though. Last edited by Jon A.; 08-01-2013 at 02:37 AM.
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#11
08-01-2013, 04:24 AM
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I was able to fix the pincussion. Inside there was a Pin-amp and pin-phase adjustment. Not perfect but quite better now.
I adjusted V-size so the bottom isn't cut off, but now there's a little gap at the top, but there's no V-position POT's inside.. I adjusted the focus, it's at the extreme edge for focus now, and is as sharp as it can possibly get anyway. I experimented with a POT called H-Stat and that basically screwed up convergence, so I put it back since convergence was nearly perfect already.
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#12
08-01-2013, 11:06 AM
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15Khz? What was this monitor meant for?
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#13
08-01-2013, 11:29 AM
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medical i believe.. It has a very weird base and set of inputs..
mine was a movie prop in X-files (still had the same damn pincussion problem way back then too when seen on the show.. till i fixed it somewhat today)..
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#14
08-01-2013, 12:12 PM
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Good work! That's a nice monitor.
I believe the RGB signals going into the D-sub on your monitor would also work on the RGB input of a KX-1901/KX-2501/KV-20XBR/KV-25XBR, but you would have to use a floppy drive connector plug instead of the D-sub.
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#15
08-01-2013, 08:21 PM
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Thanks, here's a video recording of what I have done to it, and it working now.
http://www.youtube.com/watch?v=6iyOSJAmyeM The sound is recorded directly from the real Genesis that's running this, which has been hacked quite a bit with a newer sound chip (clear FM synthesis than the original, but unless games take use of the digitized sound sampling function correctly, like gun shots and drum percussions, they don't sound better). EDIT: Just realized, for some reason I knocked the focus off half way through. :/ whoops! I'm using a real movie camera for this, not a cheap home camera, so it has a large focus ring, I must have knocked it at one point.
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Linear Mode
