Concerning power supply and consumption: you have to think about three opamps having to drive 1. This takes some current. Plus supply current for the parts etc.
Reckon on The LM is not the worst choice here. Just had a look at the LM and it looks like it will do the job. It should be more than enough. I have ordered a few to play with. Should I use some kind of regulator e. And what do i do with the data pins of the USB port? Do I just leave them floating? You can place transient protection ot the input if you like, it depends on how harsh your environment is probably not necessary for video.
Just leave the data lines open, or even better terminate them correctly. Quote from: Benta on October 18, , pm. A simple Zener could also do it. A linear supply is a good idea in AV, not that switchers are no good, its just a potential problem you can eliminate off the bat.
Like so many analog video ICs its gone to meet its maker. I believe that there are still some MCs still in the aether. Comodore fan boys can help. I'm not too sure its happy driving a low imopedance load. At unity gain this opamp is out of its depth. I spent a small fortune on racks of analog matrix switches just before HDMI appeared. It made a grown man cry. Still, not my own cash! You can make it single supply but you'll be bogged down in coupling caps and the evils of sag.
A CD timer can be contunually reset by H or V sync when sync lost, it starts counting down to turn-off. Quote from: Terry Bites on October 19, , pm. Dont forget the LM is just a single naked opamp. The LT is three channel device with internal precsion gain set resistors. Its the same price or less than three LMs, but with handy features in a single package. Yes the sync seperator costs about 5x the , even if its not right for you purpose its worth knowing about your options.
The MAX simply tells you your video link has been cut by a gaggle of ninjas. Many of us take inspration from devcies we havent come across before and sometimes dont use them as intended thereby broadening the art. Perhaps you just want to have fun building this, but it sounds like you are going to an awful lot of trouble for something that can be purchased for a few dollars or whatever currency. You are talking about an analog component converter: from one set of analog components to another set of analog components.
These converters use simple, weighted summations of one set of components to arrive at the other. Active devices op amps are usually used to prevent cross talk between the input components and bring the output levels back up after passing through the summing resistors. Even if the one you buy does not do the exact conversion you want, that can be changed, probably with some simple resistor substitutions. I tried an converter but it was unusable on my set.
It looks like this box offers a cure for owners of converters and Mitsubishi sets. I ordered the Box and I'm happy to report that my converter is now fully functional with no left shift! I finally got it hooked up today Bottom line, if you want to fix the left image shift BUY IT! The box works perfectly. Thanks for for your great support. Thanks again for your help and assistance and most especially for your product. I hooked it up that evening and it has been spectacular!
I'm still playing with the color configuration a bit just small adjustments , but everything has been spectacular! I am completely satisfied! I now can see each different step from 0 to 5 IRE!!
The projector is so bright and on 0 IRE the room is completely dark. The contrast and the depth in the picture are great. I'm a very happy man So far it is working very well. I had to perform some minor IAC adjustments, but once I got it right where I wanted it the picture is very clear and stable. I'm also impressed by the solid feel of the unit Thanks for breathing new life into my aging HDTV!
I managed to adjust the left shift problem. However, after having such a great picture I decided to upgrade my surround to get the full HD sound as well. I bought a new 7.
Thanks again for everything. Fantastic product! Well worth it. Solid construction, and it appears very well made. The BOX makes my video chain very simple now. Picture quality is great on both displays - the gamma boost seems by eye at least as good as it was with the RTC Thanks for a great product. This product not only did its job, but it performed without any trouble whatsoever.
However, the FC4 caused color problems colored lines across the screen , and a slight left-shift of my TV's image. Using the appropriate cables for my setup, HDMI included, I plugged it right in and it worked like a charm!
No more random lines across the screen, and I can alter the screen shift using the Box ! Lastly, the unit's construction is excellent. It is built very well, and is also very sleek and small. All in all, a great product. I watched a couple of scenes with the Box out of the loop on my CRT monitor. The details in the shadows were lacking. Then I put the Box in the loop, tweaked the gamma slightly and I could really see what was going on in the shadows as compared to no gamma boost.
Now you may be thinking that you could just turn up the brightness on your TV right? The colors in the picture become washed out, the blacks turn grey, and you loose that 3D look CRT is so famous for. With the gamma in the loop you can leave the brightness at the right spot and just boost the shadow details. It looks fantastic at i.
I did some testing with the Box and a converter. I like gaming and it comes in handy there too. You can bring out the shadow details so other players can't hide in the shadows. If you really enjoy getting the most out of your system and getting the most out of the movies you watch I would highly recommend the Box I have to say that this setup has made a huge difference in the high definition picture from our Dish Network satellite receiver on the old Mits.
The picture is rock solid and stable, perfectly sized and centered, and the Box makes the colors vivid and details sharp. The previous HD component cable hookup was good, but the picture overscanned left and right, loosing a little on each side. The picture is now sized with virtually no overscan. My wife and I had been considering replacing the Mits for a new LCD television, but seeing these results, we have to say that this setup has literally breathed new life into the old girl.
This is a 65" television, and the picture looks every bit as vivid, sharp, and detailed at i as the 65" LCD Sharp I've seen at Costco looks at p. Nevertheless, it 's great to know we can now get a Blu-Ray and play it on our Mits in i. The Box was not available, so I was shipped a Box at no additional cost.
This product is amazing. I've been fighting with contrast and brightness issues with my DIY projector for over a year and the box solved the problem! Depending on the movie or game, I would have to crank the brightness to and the contrast to 95 which would really wash out the image but it made viewing possible. I didn't realize that my projector could produce such vibrant colors.
I'll post some screenshots and brag about this thing over at the lumenlab forums.
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