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David, How come you never answer any of my questions about the rubidium oscillator? I have asked you about it many, many times and have never
received any response from you. -Chuck
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On Apr 10, 2021, at 3:53 PM, David Forbes <nixie...@gmail.com> wrote:I built a couple LED TV sets about ten years ago. I had to solve this problem. I bought a sync separator chip for the first one, and a digitizer chip for the other.See the bottom of the page for schematics.
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locking on). NTSC (Never Twice the Same Color) was a bit of an issue with needing Color and Hue controls that adjusted the TV's
On Apr 13, 2021, at 2:09 PM, Robert G. Schaffrath <robert.s...@gmail.com> wrote:Big problem these days is where to get an NTSC video source. The only things I currently have left are an old 8mm camcorder and a digital to NTSC converter box that were common when the US went all digital.
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So here is the schematic of a very similar module: http://oz1db.dk/hp/omnivision_man_lp06xx_rev0_0611.pdf . Can't I just change the timing capacitors for the horizontal and vertical sync? (I.e. mess with R17 at U1 and R35 at U2)? Based on what Adrian wrote below it seems it might be possible, within reason? Since it is already working (kind of, limited screen coverage) I probably don't ahve to tweak much?
So if anybody can help on the brightness issue as well as on
the frequency modification I would be very grateful!
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