Hello all! Sorry if this has been covered before, but I cannot seem to locate what I need, even after searching. I have a DTV v1 unit that I am about to start stuffing into an older portable DVD player that died. It is a Dynex DVD player model DX-PDVD9. Upon tearing it all down to get to the LCD, it appears that it has a S-Video inputs according to the labels printed on the circuit board.
From what I have read, the DTV v1 can use S-Video. So now the question I am trying to get answered is what needs to be done to make this work. Do I need to just get a 470pF capacitor and convert the S-Video to Composite, or are there actual Luminance & Chrominance points on the PCB I can solder to?
I have found everything I need to hook in the PS2 keyboard port and the Floppy connector, I'm just stuck on this last part. Any help would be greatly appreciated! Thanks for reading!
I had run across your site earlier in my search, but missed the part about removing R14. So, tonight I got out my goodies and went to work.
I initially removed the wrong resistor because the numbering was hard to read! Then I got smart and removed the correct one and after some work, got the other one back in it's proper place! Now if I use composite I have the nice B&W screen. I can also hook up just the Luminance and ground and get a pic through my S-Video input.
Now the question is how do I add the color back in? If I connect the Chrominance wire where the R14 was, the screen distorts, but I do see some color there. Do I need to add in a 470pF Ceramic Capacitor between that point and the remaining Chrominance wire, or is there another spot I should be attaching it to? Many thanks!
Post by David Murray on Jan 7, 2009 10:40:55 GMT -5
Unfortunately, I'm not sure what to tell you. I never got that far. When I have done S-Video mods on the version 2 DTV, it was as simple as removing the capacitor that linked the luma and chroma together. One side of the cap was luma and the other side was chroma and you could just solder wires right where the cap used to be. But I'm not 100% sure on the V1. But I do know it has been done before. I remember somebody on here saying they had done S-video to the V1 a long time ago. Might want to search the threads. It would have probably been 2 years ago or more.
Well, I tried doing a search on here but came up empty handed. I found this site: galaxy22.dyndns.org/dtv/common/svideo/index.html that shows s-video on the Hummer version. I will try to give this a try in the next few days to see how it works out. I'll try to post any results. Thanks!
Haha.. that is also part of my website, I wrote all that. Unfortunately, the board layout on the hummer is totally different.
You know.. I seem to recall hearing something a few years back on S-video for the DTV1 and I believe somebody said something about needing a resistor or something on the chroma output.. Something about the chroma being too strong. Maybe that is what you need.. What value, I have no idea.