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| crt tv rgb input |
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| mahalos:
So i picked up the tv today, fired it up.....and i have a problem. There's doesn't seem to be any red. I've tried different cables, and two different pc's, but the results are the same. I have no colour adjustment on the TV for the RGB input, only size controls. I've tried tweaking with the nvidia utility on the PC, but had no luck. I'm unsure where to go from here. The TV is a panasonic tx-68p150z with a 31.5khz rgb input. The video card is a 8800gts outputting 640x480. The picture looks really good...apart from the colour!! The other problem i have is the fact that the RGB osd display doesn't seem to go away...(must try and download a manual) ...and the fact that when the power is cut, and turned back on it starts up on channel 6. If it's left on one of the 4 AV channels it's starts back on them fine....it's just the RGB input that it refuses to startup on. |
| boardjunkie:
You have to get into the service menu for color (and other) adjustments. But, thats not yer issue. You have a missing color, so its likely a cathode drive transistor on the neck board that is either bad or cracked loose from the board. Its possible the color signal is missing further up the line.....you'd need to poke around with a scope to see where it goes missing. If you take it to a repair shop you should be able to get it taken care of fairly cheap. |
| lilshawn:
can you get red from a channel or another input? |
| Jack Burton:
Hmmm, I think somehow you're sending it the wrong signal. On displays that have RGB inputs if you hook up a Component cable you will get "green screen" effect. It looks just like what you have. I'm wondering if your computer is somehow detecting a tv here and is deciding to send YpBpR over the video cable instead of straight RGB. So we need to answer a few questions: #1: Can you see correct colors when using the other inputs? #2: What kind of cables are you using to connect? #3: What kind of adapters are you using? |
| mahalos:
yes, i can get red on the TV using any of the AV channels and the composite out from my digital camera. I've tried 2 VGA cables.....both using the DVI to VGA adaptor, I also found a DVI to VGA cable that came with one of my monitors. Thinking it may have been something to do with the DVI on my pc, I tried using the VGA output on my laptop. All cable, adaptor and pc combinations gave the same result. PC = winxp, nvidia 8800gts, DVI output laptop = win 7, intel HD graphics (or something like that), VGA output |
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